All tools
297 tools in 11 categories. New tools and new categories appear here automatically.
Image 52
- App Icon Set Generatoron-deviceExport every iOS, Android and PWA icon size in one zip.
- Aspect Ratio to Pixel Converteron-deviceConvert between an aspect ratio and exact pixel dimensions, work out a simplified ratio from pixel dimensions, or fit a ratio inside a bounding box.
- Barcode generatoron-deviceGenerate Code128, EAN-13/8, UPC-A/E, Code39/93, ITF-14, MSI, Pharmacode, and Codabar barcodes with auto checksum, use-case presets, PNG/SVG export, rotation, and a batch mode that zips a whole list at once.
- Bare — metadata stripperuses the internetSee camera, GPS, and timestamp data hiding in a JPG/PNG/WebP, then strip some or all of it.
- Base64 image encoder / decoderon-deviceImage ↔ base64 data URI, both directions — batch mode, size warnings, and format presets.
- Before / after slideron-deviceGenerate a draggable before/after comparison from two images.
- Border / frame adderon-deviceAdd a solid or styled border around an image.
- Color pickeron-deviceSample colors from an image, extract a palette, check contrast, and generate shades & harmonies.
- Color-Blindness Simulatoron-devicePreview any image as protanopia, deuteranopia, tritanopia or achromatopsia.
- Compresson-deviceRe-encode JPG/PNG/WebP at a target quality or file size.
- Contact sheet / collageon-deviceArrange a batch of images into a grid.
- Cropon-deviceFreeform or fixed-ratio crop with a live preview.
- Crop circleon-deviceDrag a circular selection anywhere on a photo and cut out just that region.
- CRT Monitor Effecton-deviceApply a retro CRT scanline/glow filter to a photo.
- Dither / pixelate / retro filterson-deviceDithering, pixelation, and retro-style filter presets.
- Document Scanneron-deviceCamera or photo to clean, deskewed, high-contrast scan, exportable as PDF.
- Duplicate image finderon-deviceFind exact and visually similar duplicate photos across a batch — perceptual hashing runs in a Web Worker so the tab stays responsive.
- Favicon generatoron-deviceOne image in, a full set of favicon sizes out.
- Format converteron-deviceConvert PNG, JPG, WebP, AVIF, and ICO — batch, with quality control.
- GIF Maker from Imageson-deviceTurn a stack of images into a looping GIF with per-frame timing.
- Government ID Aspect-Ratio Lockeron-deviceCrop a passport/ID/tax document photo to preset international dimension standards (US passport, EU ID card, etc).
- Image annotatoron-deviceDraw arrows, boxes, freehand marks, and text on top of an image.
- Image Color Contrast Matcheron-deviceEyedrop two colors from an image and get the exact WCAG contrast ratio, plus accessible alternatives.
- Image watermarkon-deviceOverlay text or a logo — tiled or single, with opacity and position control.
- Image → ASCII Arton-deviceConvert a photo into ASCII art with adjustable density and character sets.
- Image → HTML Link Generatoron-deviceTurn an image into a ready-to-paste HTML <img> tag or linked thumbnail.
- Image → SVG Converteron-deviceTrace a raster image into scalable SVG paths — quick presets or full manual control over colors, detail, and smoothing.
- Make squareon-devicePad an image to a square canvas with a chosen fill.
- Merge imageson-deviceCombine images horizontally, vertically or in a grid — per-image rotate/flip/crop, live preview, size presets, PNG/JPEG/WebP/PDF export.
- Open/Convert HEIC Fileson-deviceView an iPhone HEIC photo and convert it to JPG/PNG.
- Page Image Link Extractoruses the internetPaste a page’s HTML/view-source and get a clean list of every image on it, ready to open or download.
- Passport Photo Makeron-deviceCrop to country specs and tile a printable sheet.
- Paste Image to Downloadon-devicePaste an image straight from your clipboard and save it in any format.
- Perspective Fixon-deviceStraighten photographed documents, whiteboards and signs with a 4-point warp.
- Photo Decoratoron-deviceAdd draggable, resizable text and stickers plus a border frame to a photo, then stamp the same decoration across a whole batch of photos and download them as a .zip.
- Pixel Art Converteron-deviceConvert a photo into pixel art with a customizable palette.
- Placeholder image generatoron-deviceQuick colored box with dimension text, for mockups.
- QR code scanneron-deviceScan a QR code live with your camera or from an uploaded image — decodes URLs, Wi-Fi logins, and contact cards, with phishing-trick warnings on links.
- Receipt/Invoice Image Stripperon-deviceAuto-crop a receipt photo to its paper edges, convert to grayscale, and compress under 200KB for tax records.
- Redact imageon-deviceBlack out or pixelate sensitive parts of a photo or screenshot before sharing.
- Resizeon-deviceResize by exact pixels, percentage, or longest edge.
- Rotate / flipon-deviceRotate 90°/180°/270°, flip horizontal or vertical, or straighten a few degrees.
- Round cornerson-deviceApply rounded corners with an adjustable radius and border.
- Screenshot beautifieron-deviceAdd padding, a gradient background, and browser-window chrome to a screenshot.
- Screenshot Stitcheron-deviceJoin overlapping screenshots into one long image, auto-aligned.
- Signature Makeron-deviceDraw or type a signature and export a transparent PNG.
- Simple upscaleon-deviceCleaner bicubic upscaling than the browser default — not AI super-resolution.
- Split Imageson-deviceSplit one image into a grid, poster-size print tiles, an Instagram profile grid, or your own custom guides — with batch mode and a reassembly reference sheet.
- Sprite Sheet Cutteron-deviceCut a sprite sheet into frames by grid, cell size, auto-detected sprites, or an atlas JSON — with trim/uniform sizing, animation preview, engine atlas export, and batch zip output.
- Sprite sheet generatoron-deviceCombine images into a grid, plus the CSS coordinates for each.
- SVG → PNG Exporteron-deviceRasterize SVG at any scale or DPI, transparent or solid background.
- Trim Transparent Pixelson-deviceAutomatically crop away transparent borders from a PNG.
PDF 19
- CMYK → RGB PDF Color Converteron-deviceConvert a print-ready CMYK color PDF to screen-safe RGB so it doesn’t look neon/distorted on screens.
- Document → Markdown Converteruses the internetWord, PDF, PowerPoint, Excel/CSV, HTML, RTF, plain text, or a live URL — into clean Markdown, with a flavor picker (GFM/CommonMark/Obsidian/Plain), image extraction, front matter, live preview, and batch .zip export.
- Excel → PDFon-deviceConvert a spreadsheet to PDF — an approximation, not pixel-perfect.
- Make a PDF Look Scannedon-deviceAdd skew, paper tone, grain, and JPEG artifacts to make a clean PDF look like a scan.
- PDF Background Grid Overlayeron-deviceDraw graph or ruled lines behind an existing PDF’s content to turn it into a printable workbook page.
- PDF Booklet Imposition Layouton-deviceRe-arrange page order so a PDF prints correctly as a folded, double-sided physical booklet.
- PDF compresson-deviceShrink scanned or image-only PDFs; pages with real text are left untouched.
- PDF merge / spliton-deviceReorder and combine multiple PDFs into one, or split a PDF by page range, every N pages, or into equal parts. Password-protected files are flagged and skipped, never silently dropped.
- PDF metadata editoron-deviceEdit title, author, and keywords on a PDF.
- PDF page manageron-deviceReorder, delete, rotate, or pull out individual pages.
- PDF page numbers / headerson-deviceStamp page numbers or a running header/footer across a PDF.
- PDF password protect / removeon-deviceAdd or strip a password from a PDF.
- PDF redactionon-deviceMark and permanently remove sensitive content from a PDF, page by page.
- PDF watermarkon-deviceStamp text or a logo across every page — tiled or single, with opacity and rotation.
- PDF → grayscaleon-deviceConvert a whole PDF, or just the pages you pick, to grayscale.
- PDF → texton-devicePull the text out of a PDF, page by page.
- PDF ↔ imageon-deviceConvert PDF pages to images, or images into a PDF.
- PowerPoint → PDFon-deviceConvert slides to PDF — an approximation, not pixel-perfect.
- Word → PDFon-deviceConvert a .docx file to PDF, right in your browser.
Text & Dev 110
- .env Syntax Validatoron-deviceCheck a .env file for missing quotes, stray spaces, and other syntax breaks — entirely offline.
- .gitignore generatoron-devicePick any combination of languages, frameworks, editors, and OSes — merged into one deduped .gitignore, with support for appending to an existing file.
- Acronym Generator & Expanderon-deviceGenerate an acronym from a phrase, or expand an existing acronym.
- Affiliate Disclosure Snippet Injectoron-deviceAutomatically append a disclosure tag right after every affiliate link found in a pasted block of text.
- Affiliate Link Tracker Builderon-devicePaste a base URL and toggle UTM/SubID tags to generate error-free tracking links in bulk.
- AI Prompt Organizeron-deviceSave, tag, and reuse text prompts — stored locally in your browser only.
- Base32 encoder / decoderon-deviceBase32 encode/decode, alongside the existing Base64 tool.
- Base64 → File Reconstructoron-devicePaste Base64 or a data URI and get the original file back — any type, detected from its real bytes. Repairs damaged input, extracts every embedded file from JSON/CSS/HTML, previews and inspects the result, and encodes any file to Base64 too.
- Bulk Email & Link Extractoron-devicePull only valid email addresses or URLs out of a messy pasted block of scraped text or chat logs.
- Bulk Slug Generatoron-deviceTurn a multi-line list of titles into URL-safe slugs, all at once.
- Case converteron-deviceUPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, CONSTANT_CASE, kebab-case, dot.case.
- Citation Formatteron-deviceEnter a source's details once, get correctly formatted APA, MLA, and Chicago citations, in-text and full reference, plus a saved bibliography exportable as .txt, .bib, or .ris.
- Code Beautifieron-devicePretty-print HTML, CSS, JS, JSON, XML, YAML, SCSS, TypeScript, or GraphQL from one tool.
- Color format converteron-deviceHEX ↔ RGB ↔ HSL, with a live swatch.
- Cookie / LocalStorage Inspectoron-deviceDrop in exported browser storage data and get a clean, editable, toggleable list instead of raw devtools JSON.
- Cron expression parseron-devicePlain-English cron schedules, 5/6/7-field auto-detect, Vixie vs Quartz dialects, timezone-aware next runs, a visual builder, and copy-as crontab/systemd/EventBridge/GCP.
- Cross-Poster Listing Formatteron-devicePaste a product description once and get platform-safe versions (length/character rules) for 5 major marketplaces.
- CSV → INSERT SQLon-deviceTurn CSV rows into SQL INSERT statements for MySQL, PostgreSQL, SQLite, or SQL Server.
- CSV/XML → Charton-deviceTurn a CSV, TSV, or simple XML file into a bar, line, pie, doughnut, scatter, or radar chart — auto-detected columns, color palettes, a second-file comparison overlay, and PNG/SVG export.
- cURL ↔ fetch() converteron-deviceConvert a cURL command to a JS fetch() call, or back.
- Data format converteron-deviceJSON, CSV, and YAML — convert between any of the three.
- Device Testerson-deviceQuick standalone testers for your mouse, keyboard, screen type, or phone vibration.
- Dice & Coin Rolleron-deviceBuild a dice tray — D4 to D100 or custom-sided — with notation parsing, a running total, live odds, and roll history. Flip coins too.
- Diff checkeron-deviceSide-by-side or unified diff between two pieces of text.
- Docker Compose Visualizeron-deviceValidate a docker-compose.yml and draw an interactive map of how its services/networks connect.
- Domain Extractoron-devicePull the bare domain out of any URL or block of text.
- Dummy Data Generatoron-deviceGenerate realistic fake JSON/CSV test data (names, emails, addresses, etc).
- Duplicate Word Finderon-deviceFind and highlight duplicate words in a block of text.
- Email Header Analyzeruses the internetTrace hops, delays and authentication results from raw headers.
- EML File Vieweron-deviceView and inspect an .eml email file directly in your browser.
- Encrypt / Decrypt Texton-deviceEncrypt or decrypt text with a passphrase using AES-256-GCM — entirely in your browser.
- Explain JSONon-deviceTurn a JSON blob into a plain-English structural explanation.
- Extractorson-devicePull dates, IPs, hashes, UUIDs, JWTs out of pasted text.
- Fancy/Bold Text Generatoron-deviceTurn plain text into bold, italic, or stylized Unicode text for social bios and posts.
- Find and Replaceon-deviceFind and replace text, with regex support.
- Google Drive Direct-Download Link Generatoron-deviceTurn a shared Google Drive link into a direct-download link.
- HAR File Vieweron-deviceWaterfall, timings and request inspector.
- HAR Sanitizeron-deviceStrip cookies, tokens and PII from HAR files before sharing.
- Hash generatoron-deviceMD5, SHA-1, SHA-256, SHA-384, and SHA-512 for text or a file.
- HTML / CSS / JS minifieron-deviceMinify or beautify HTML, CSS, and JavaScript — two-way, with byte-savings stats.
- HTML Editoruses the internetWrite HTML with a live rendered preview.
- HTML → Plain Text Stripperon-deviceStrip nav, footer, script, and style tags from copied HTML, leaving just the readable title and paragraph text.
- Invoice Generatoron-deviceFill out a professional invoice — logo, line items, discounts, multiple taxes, a paid/overdue stamp, and a reusable sender template — then export as a PDF.
- IP subnet / CIDR calculatoron-deviceSubnet mask, host range, and broadcast address from a CIDR block.
- JSON diffon-deviceStructural JSON diff — positional or key-matched array comparison, ignore-path globs, a visual tree, and JSON Patch (RFC 6902) export. Large docs diff in a background worker.
- JSON formatteron-devicePretty-print, minify, validate with exact error location, flag duplicate keys, and auto-repair common mistakes.
- JSON Schema Validatoruses the internetValidate JSON against a schema with line-level errors.
- JSON → Table Converteron-deviceTurn a JSON array into a readable table.
- JSON → TypeScript Interface Generatoron-devicePaste a raw JSON response and get a matching TypeScript interface generated instantly.
- JSON → XML Translatoron-deviceConvert a JSON API response into valid nested XML for legacy systems that require it.
- JSON-LD Schema Generatoruses the internetArticle, product, FAQ, local business and more.
- JSONPath Testeruses the internetRun JSONPath queries live with highlighted matches.
- JWT Builder & Signeruses the internetCreate and sign HS256, RS256 and ES256 tokens locally.
- JWT decoderon-deviceBreak a JWT down into header, payload, and signature.
- Line Toolson-deviceAdd a prefix/suffix to each line, filter lines by content (plain text or regex), or repeat text across lines — with live preview, saved drafts, and file import.
- Log Analyzeron-devicePaste raw logs and get error counts, recurring patterns, and a timeline breakdown.
- Lorem ipsum generatoron-devicePlaceholder text by paragraph, sentence, or word count.
- MAC Address Generatoron-deviceGenerate MAC addresses in bulk from a quantity and prefix.
- Markdown editor & vieweruses the internetSplit-pane markdown editor with a live rendered preview — export as PDF or standalone HTML.
- Markdown table generatoron-deviceSpreadsheet-style grid editor with per-column alignment, paste-to-import from CSV/TSV or existing markdown tables, keyboard navigation, live preview, and auto-width padded raw output.
- Markdown Table → JSON Converteron-deviceConvert a Markdown table back into a clean JSON array of objects.
- Markdown → Slides Generatoron-deviceType bulleted Markdown notes and get a rendered, minimalist slideshow you can export as a PDF.
- Mermaid Diagram Editoron-deviceLive Mermaid editing with SVG and PNG export.
- Morse Code Converteron-deviceConvert text to Morse code and back, with audio playback.
- Novelty Generator Bundleon-deviceName generators (Xbox Gamertag, Japanese Username, Business Identity, etc.), non-jailbreak AI prompt generators, flag maker, random anime character/phone number, quotation generator, cross-sum & vanity-number calculators, interactive analog clock, random letter/emoji generators, glitch text generator.
- Number base converteron-deviceDecimal, hex, binary, octal — type in any, see the rest.
- Number to Roman Numeralson-deviceConvert numbers to Roman numerals and back.
- Numbers to Words Converteron-deviceConvert a number into its written-out word form.
- OG / social preview checker & generatoruses the internetPaste a page's HTML, opt in to fetch a live URL, or start from scratch with nothing — preview the link card on 9 platforms, catch missing tags and truncation, generate a starter JSON-LD block, then export a ready-to-paste <head> snippet.
- OKLCH color picker & converteron-deviceEdit L/C/H with live HEX/RGB/HSL/LAB/LCH conversion, a gamut-clipped fallback preview, a WCAG-scored shade palette generator, a hue-harmony generator, and a perceptually-even gradient builder.
- OpenAPI Vieweruses the internetBrowse Swagger and OpenAPI specs offline.
- Password generator & strength checkeron-deviceGenerate random passwords or passphrases, or check an existing password's real crack time — pattern-aware, not just a character count.
- Phone Parser & Formatteron-deviceParse and format a phone number, with country code and type detection.
- QR code generatoron-deviceURL, text, email, phone, SMS, WiFi, contact card, or location — into a QR code with custom colors, dot styles, an optional logo, and batch CSV export.
- Random Color Generatoron-deviceGenerate a random color with one click.
- Random Name / Raffle Pickeron-deviceSpin a wheel to draw a random name — weighted entries (extra tickets), auto-remove winner, a second wheel for picking a prize alongside a name, shuffle/sort, and a full spin history.
- README Badge Generatoruses the internetPick from build/license/version/tech-stack badges, get the ready-to-paste shields.io Markdown.
- Regex testeron-deviceLive match highlighting and capture groups as you type a pattern.
- Regex → Plain English Translatoron-devicePaste a regex pattern and get a plain-English breakdown of what it matches, alongside a live tester.
- Review Text Analyzeron-devicePaste competitor reviews and get a frequency breakdown of common complaint keywords.
- Rich Text / HTML → Markdownon-devicePaste formatted text or HTML, get clean Markdown.
- Sentence Rewriteron-deviceLocal thesaurus-based synonym swap for a sentence or paragraph — a lighter, offline alternative to AI paraphrasing tools.
- Simple Text Editor / Noteson-deviceCreate and manage multiple text notes with auto-save.
- Slug generatoron-deviceTurn a title into a URL-safe slug.
- SPF, DKIM & DMARC Generatoruses the internetBuild and explain mail authentication DNS records.
- Spin the Wheelon-deviceAdd options, spin an animated wheel to pick one at random — giveaways, decisions, raffles.
- SQL formatteron-devicePretty-print messy SQL across 19 dialects, catch a few common mistakes, and export it as JS/Python/JSON strings.
- SQL Schema Diff Checkeron-deviceCompare two SQL export structures and highlight exactly which tables/columns/keys changed.
- SQL Schema → ER Diagramon-devicePaste a CREATE TABLE dump and get a visual entity-relationship diagram — tables, columns, and foreign-key links.
- SQL → Markdown Table Generatoron-deviceTurn a table structure or query result into a clean Markdown table for READMEs and docs.
- SSH Key Generatoron-deviceEd25519 and RSA key pairs created with WebCrypto.
- SVG Code Optimizer & Minifieron-deviceStrip editor comments, empty paths, and excess decimal precision from SVG markup — often 60% smaller.
- SVG Extractoron-devicePull inline SVG code out of a pasted webpage or markup block.
- SVG → CSS Converteron-deviceConvert an SVG into a CSS background-image data URI.
- Tally Counteron-deviceA simple click counter with presets, resettable and rememberable.
- Text Cleanup Toolkiton-deviceRemove extra spaces, punctuation, or emojis, reverse text, or wrap lines — one tool, several one-click cleanups.
- Text encoder / decoderon-deviceBase64, URL, and HTML entities — encode or decode.
- Text Pixel Width Calculatoron-deviceMeasure how wide a string renders at a given font/size/weight, in single or batch mode, with live bars against common Google title/description pixel guides.
- Timestamp converteron-deviceUnix timestamp ↔ human-readable date, local or UTC.
- Token Generatoron-deviceGenerate random strings/tokens with your choice of character sets and length.
- URL Parser & Builderon-deviceBreak a URL into parts and rebuild it with encoded parameters.
- User-agent parseron-deviceBreak a UA string into browser/OS/device, spot bots, parse Client Hints, batch-parse, compare, or generate one.
- UUID generatoron-deviceBulk-generate UUIDs/GUIDs.
- Webhook Payload Sandboxuses the internetPaste a big JSON payload and get a navigable visual tree with quick filtering for error codes/status fields.
- Wi-Fi QR Generatoron-deviceQR codes that join a network in one scan.
- Word / character counteron-deviceLive word/char counts, reading & speaking time, sentence/paragraph breakdown, top keywords, and live bars against real platform limits (X, SMS, meta description, title tag, Instagram, YouTube).
- X.509 Certificate Decoderuses the internetDecode certificates and CSRs into readable fields.
- XML Formatter & Validatoron-devicePretty-print, minify and validate XML.
- YAML Validator & Formatteruses the internetValidate, format and convert YAML.
Spreadsheet 7
- CSV cleaneron-deviceTrim whitespace, fix encoding, and dedupe rows in a CSV.
- CSV Splitteron-deviceSplit by rows, size or column value.
- Fuzzy Duplicate Row Matcheron-deviceFind near-identical rows (e.g. "John Doe" vs "John Doee") that exact-match filters miss, using Levenshtein distance.
- Merge CSVson-deviceCombine multiple CSV files into one.
- SQL INSERT → CSV Generatoron-deviceTurn a raw SQL INSERT script into a clean, spreadsheet-ready CSV.
- vCard (.vcf) → CSV Converteron-deviceConvert vCard (.vcf) contact files to CSV, or a CSV back into vCards — both directions.
- XLSX vieweron-deviceOpen and browse a spreadsheet without needing Excel.
Utility 17
- Batch renameon-deviceRename any batch of files — photos, PDFs, docs, anything — with pattern tokens, regex find/replace, date stamps, case/trim cleanup, and CSV-driven per-file renaming.
- Checklist Creatoron-deviceCreate multiple reusable checklists with nested sub-items, progress tracking, and manual/daily/weekly auto-reset. Export/import a full JSON backup.
- Countdown timer / stopwatchon-deviceRun one or several countdowns at once — by duration or target date, each with a shareable link — or a full stopwatch with laps. Optional keep-screen-awake toggle.
- Date difference / age calculatoron-deviceDays, months, or years between two dates.
- File Sorteron-deviceDrop in a folder or a pile of mixed files and it separates them into lanes by type — images, video, audio, documents, spreadsheets, presentations, archives, code, fonts — then exports sorted into real folders or as a manifest sheet.
- Flashcardson-deviceA simple local spaced-repetition-lite study tool that autosaves your decks.
- Focus Session Loggeron-deviceA minimalist local Pomodoro/focus timer that logs session blocks and daily summaries in your browser only.
- Fullscreen Color Testeron-deviceSolid fullscreen colors for screen checks.
- Habit Trackeron-deviceTrack yes/no or count-based habits with streaks and a 13-week heatmap, no account needed. Export/import a full JSON backup.
- ICS Calendar Event Modifieruses the internetFix a wrong timezone, date, or missing link in a calendar invite (.ics) file without opening a calendar app.
- One-Day Planneron-deviceA calm, today-only task list with no streaks or gamification.
- Percentage / tip calculatoron-devicePercentages, tip splitting, and quick math.
- Stay Awakeon-deviceKeep this device awake for a set time or until you turn it off — handles tab-switching and unsupported browsers gracefully.
- Time zone converteron-deviceCompare a time across zones — real search by city/country/UTC offset, day/night icons, DST warnings, reordering, and a shareable link.
- Unit Converteron-deviceLength, weight, temperature, volume, speed, area, and data storage — convert between any units, all client-side.
- Work Hours Calculatoron-deviceLog clock-in/out times (overnight shifts included) across a week, deduct breaks, apply daily or weekly overtime rules with rounding, and see an estimated paycheck — export as CSV.
- World Clockon-deviceLive, reorderable clocks for as many cities as you need, with 12/24-hour display, upcoming DST alerts, and a suggested 9am–5pm overlap window once you add a few.
CSS & Tailwind 21
- Border-radius Playgroundon-deviceDrag corner handles or use sliders to design rounded corners — supports elliptical corners for blob shapes.
- Box Shadow CSS Generatoron-devicePlain-CSS box-shadow builder with live preview (non-Tailwind sibling of tw-shadow).
- Clip-Path Shape Generatoron-deviceDrag polygon points directly on a live preview (add/remove points, snap-to-grid), dial in circle/ellipse/inset with a draggable center, preview against your own uploaded image, copy CSS or SVG clipPath output, bake the shape into a downloadable PNG/WebP, paste-and-parse an existing clip-path, compare the shape across different box aspect ratios, and preview an A/B shape-morph animation.
- CSS Flexbox Generatoron-deviceContainer + per-item controls, responsive breakpoint tabs, drag-to-reorder, saved layouts, and CSS/SCSS/Tailwind/React output with a plain-English + no-effect-warning panel.
- CSS Gradient Visual Pickeron-deviceLinear/radial/conic gradients with multi-layer stacking, drag-to-edit color stops, image color extraction, PNG/JPG/SVG export, animation, and CSS/SCSS/Tailwind/React output.
- CSS Grid Generatoron-devicePaint named grid areas visually, size tracks per-track or with repeat(auto-fill/auto-fit), add responsive breakpoints, name grid lines, import existing grid CSS, and export CSS + matching HTML.
- CSS Inlineron-deviceConvert an external/embedded stylesheet to inline styles — handy for HTML email.
- CSS Keyframe Animation Builderon-deviceDrag stops on a timeline, toggle individual transform/opacity/color/blur properties per stop, sculpt a custom cubic-bezier curve, stack multiple simultaneous animations, and export CSS, a <style> block, or a Tailwind config snippet.
- CSS Specificity Calculatoron-devicePaste a selector, see its specificity score broken down.
- CSS → Tailwind Converteron-devicePaste CSS, get the closest matching Tailwind utility classes.
- Fluid Typography Clamp() Calculatoron-deviceBuild a clamp() value for font size, line height, padding, margin, gap, or radius with a live device-width preview rail, an optional full ratio-based type scale (xs–4xl) exportable as CSS/Tailwind/SCSS, a reverse parser for existing clamp() values, and accessibility warnings for tiny minimums or extreme ratios.
- Remove Duplicate CSSon-devicePaste CSS, strip duplicate/redundant rules.
- Tailwind Card Generatoron-deviceStyle a card component visually, copy the Tailwind markup.
- Tailwind Colors Referenceon-deviceThe full Tailwind palette in both generations — v3 hex and v4 OKLCH (converted live) — with class/hex/rgb/hsl/oklch/CSS-variable copy, a nearest-color finder, per-swatch contrast + in-context usage previews, and a tailwind.config.js / CSS-variable export builder.
- Tailwind Flexbox Generatoron-deviceVisually build a flex layout, get the Tailwind classes.
- Tailwind Gradient Generatoron-deviceTailwind-first gradient builder — v3/v4-correct class syntax, arbitrary angles, radial/conic, text & border-gradient modes, a hover-state recolor builder, palette-locked or exact-hex stops, animated panning, plus plain CSS, config-snippet, PNG, and SVG export.
- Tailwind Grid Generatoron-deviceBuild a responsive grid visually, get the Tailwind classes.
- Tailwind Shadow Generatoron-deviceBox-shadow generator with live preview, outputs Tailwind v3/v4 classes.
- Tailwind → CSS Converteron-devicePaste Tailwind classes, get the plain CSS they compile to.
- Type Scale Generatoruses the internetPick a base size and ratio, get a modular h1–h6/body typography scale as CSS variables or Tailwind config.
Video & Audio 17
- Audio Mergeron-deviceReorder, trim, and merge multiple audio clips into one file — crossfade or gap between clips, optional loudness normalization, export as MP3 or WAV.
- Audio Pitch Shifteron-deviceChange a voice recording’s pitch without altering its speed or duration, via the Web Audio API.
- Audio Recorderon-deviceRecord, visualize, and trim audio with a waveform display.
- Audio Track Extractoron-deviceIsolate and export a single language/audio track from a multi-track video file.
- GIF → Smooth 60FPS MP4 Looperon-deviceDecode a GIF and re-render it as a smooth looping MP4 for platforms that reject .gif uploads.
- Green Screen Live Previeweron-deviceKey out a green-screen background from a photo or video clip and preview it against a new background live.
- MP4 → GIF Converteron-deviceConvert a short video clip to an animated GIF.
- Podcast Audio ID3 Metadata Taggeron-deviceEdit cover art, episode title, and other ID3 tags directly inside an audio file.
- Screen Recording Click Highlighteron-deviceOverlay a colored ring around cursor movement/clicks on an already-recorded tutorial video.
- Subtitle Sync Delay Shifteron-deviceShift every timestamp in an .srt/.vtt file by a fixed offset to fix out-of-sync subtitles.
- Subtitle Translation Helperon-devicePull just the dialogue lines out of an .srt for translating elsewhere, then merge translated text back onto the original timestamps.
- Subtitle → Clean Script Texton-deviceStrip timestamps and line numbers from an .srt file, leaving clean readable transcript paragraphs.
- Video Cropperon-deviceCrop the frame with an overlay.
- Video Frame Extractoron-devicePull still frames out of a video at chosen timestamps or intervals.
- Video Mergeron-deviceJoin clips into one file.
- Voice Recording Audio Normalizeron-deviceEven out volume jumps in a voice recording so whispers and loud moments sit at a consistent level.
- Webcam Mirroron-deviceUse your webcam as a mirror, with filters, a grid overlay, and screenshot capture.
Privacy 14
- Browser Fingerprint Checkeron-deviceShows what a browser exposes — canvas, fonts, and other fingerprinting signals — for educational awareness.
- Browser History Link Extractoron-deviceTurn an exported Chrome/Firefox history JSON file into a clean, readable list of visited links by date.
- Clipboard Secret Auto-Purgeron-deviceCopy a password or API key and have it auto-clear from your clipboard after a countdown.
- CSV Anonymizeron-deviceAuto-detects likely PII columns and lets you mask, consistently hash, replace with fake data, shuffle, or drop each one — with a live preview and full CSV export.
- DICOM → JPEG Privacy Stripperon-deviceStrip embedded patient name, hospital ID, and birthdate from a medical scan file, exporting a clean image.
- Encrypted Notes Vaultuses the internetPassphrase-locked notes stored in this browser.
- Fake Test Data Generatoron-deviceGenerate realistic fake names, emails, and addresses for testing without using real PII.
- File Encryptoron-deviceAES-GCM file encryption with a passphrase.
- Log File Noise Filter & Anonymizeron-deviceFilter routine log lines, highlight errors, and strip IP addresses or user data before sharing a log file.
- PII Finderon-deviceScan documents for names, emails, phones and IDs.
- Secret & API Key Scanneruses the internetFind keys, tokens and passwords in text or files.
- Sensitive Data Maskeron-deviceRedact emails, phone numbers, card numbers, SSNs, IPs, and custom regex patterns from pasted text — full redact, partial reveal, or consistent tokenization.
- TOTP / 2FA Code Generatoron-deviceGenerate time-based codes from a secret, on your device.
Finance 23
- Ad Spend Break-Even Calculatoron-deviceSee the exact conversion rate where ad spend stops being profitable, from three simple inputs.
- Amortization Schedule Exporton-deviceFull schedule to CSV or PDF.
- Bill & Tip Splitteron-deviceSplit a bill plus tip evenly or unevenly — assign shared items to specific people (skip the round someone didn't drink) with tax and tip prorated automatically.
- Break-Even Point Calculatoron-deviceGeneral break-even analysis from fixed costs, variable costs, and price — broader than the existing ad-spend-specific calculator. Supports per-unit or %-of-revenue mode, saved scenario comparison, and a PDF summary.
- Burn Rate & Runway Visualizeron-deviceEnter cash reserves and expenses to see the projected zero-cash date on a simple local chart.
- Compound Interest Calculatoron-deviceProject savings growth with compound interest across contribution schedules — including inflation/tax adjustment and side-by-side plan comparison.
- Cost-of-Living Offset Calculatoron-deviceWork out how much a retainer/salary needs to scale after relocating, to keep the same real savings.
- Crypto/Stock FIFO Gains Calculatoron-deviceUpload a CSV of trades and get a First-In-First-Out capital gains summary, computed entirely offline.
- Digital Envelope Budgeteron-deviceA minimalist "cash stuffing" style budget tool — allocate income into envelopes, stored locally.
- Expense Trackeron-deviceLocal expense log with categories and charts.
- FIRE Calculatoron-deviceYears to financial independence.
- Freelance Hourly Rate Calculatoron-deviceWork backward from a target income and billable hours to a minimum viable hourly rate.
- Group Expense Splitteruses the internetSettle shared costs with the fewest transfers.
- Hidden Subscription Finderon-deviceScan a bank statement CSV for recurring charges and identical merchant names to surface subscriptions you forgot about.
- Loan / Mortgage Calculatoron-deviceFull amortization schedule for a loan or mortgage from principal, rate, and term.
- Manufacturing Cost Calculatoron-deviceSave raw material/component costs locally and mix quantities to get instant per-unit cost projections.
- Markup vs Margin Calculatoron-deviceSee retail markup % and gross margin % side-by-side so the difference between the two stops causing underpricing.
- Multi-Currency Invoice Reconcileron-deviceTrack invoices paid in a foreign currency against a home-currency bank account for simpler tax-time reconciling.
- Receipt Generatoron-deviceGenerate a clean, printable/PDF receipt — pairs naturally with the shipped Invoice Generator.
- Salary / Paycheck Calculatoron-deviceConvert between pay frequencies, compare job offers, and see your take-home pay — enter your own tax rate for exact accuracy anywhere in the world, or use the US/UK quick-fill presets.
- Shipping Margin Calculatoron-deviceSee net profit across price points once platform fees and parcel weight/shipping cost are factored in.
- Snowball vs Avalanche Debt Planneron-deviceCompare two debt payoff strategies side-by-side with amortization math and a visual timeline.
- VAT / GST Calculatoron-deviceAdd or remove tax at any rate.
Business & Career 8
- ATS Resume Keyword Scanneron-devicePaste a job description and your resume side by side to check for missing ATS keywords.
- Contract Date & Name Auditoron-deviceScan a contract/NDA PDF and list every date, currency figure, and capitalized name so mismatches are easy to spot.
- Email Signature HTML Generatoron-deviceFill in name/title/social links, get clean inline-styled HTML to paste into Outlook, Gmail, or Apple Mail.
- Email Spam-Trigger Keyword Checkeron-deviceCheck newsletter copy against a local dictionary of spam-trigger phrases before you hit send.
- Event / Wedding Budget Planneron-deviceEvent-type presets, per-guest cost scaling, multi-payer split, deposit/due-date tracking, an over-budget cut list, and CSV export — autosaved locally.
- Incident Timeline Builderon-deviceLog incident events, tag Detected / Acknowledged / Mitigated / Resolved milestones, and get MTTD/MTTA/MTTR auto-calculated, with a paste-ready postmortem summary, Markdown/CSV export, and autosave.
- Meeting Cost Calculatoron-deviceLive running meeting cost by attendee rate, annualized cost for recurring meetings, spend comparisons, and an "could this be an email?" threshold warning.
- Shift / Schedule Planneron-deviceWeekly drag-free shift grid with overtime and double-booking warnings, per-employee availability, live labor cost, week-to-week copy, and CSV export.
Coming soon 11 categories
Files & Archives 24 tools planned
Zip Viewer & Extractor, Zip Creator, Universal Archive Opener, File Checksum Verifier, Binary File Compare, File Type Detector, Hex Viewer & Editor, File Splitter & Joiner and 16 more.
Math & Science 25 tools planned
Scientific Calculator, Graphing Calculator, Matrix Calculator, Fraction Calculator, Statistics Calculator, Regression & Curve Fit, Probability Calculator, Permutation & Combination and 17 more.
Health & Lifestyle 30 tools planned
BMI Calculator, Calorie & TDEE Calculator, Macro Calculator, Sleep Cycle Calculator, Workout Logger, Interval / HIIT Timer, One-Rep Max Calculator, Running Pace Calculator and 22 more.
Writing & Education 22 tools planned
Readability Score, Keyword Density Analyzer, Word Frequency Counter, Bibliography Manager, BibTeX Converter, Cornell Notes, Quiz Maker, Typing Speed Test and 14 more.
Games & Fun 35 tools planned
Initiative Tracker, RPG Name Generator, Loot & Treasure Generator, Random Table Roller, Character Sheet Builder, Sudoku, PGN Viewer, Crossword Maker and 27 more.
Screen & Device 18 tools planned
Screen Resolution & Viewport Checker, Monitor Refresh Rate & FPS Test, Motion Blur & Ghosting Test, LCD Test Patterns, Fullscreen Digital Clock, Bouncing DVD Logo Screensaver, Matrix Rain & Starfield Screensavers, Digital Lava Lamp and 10 more.
Brain & Reflex Tests 11 tools planned
Click Speed Test (CPS), Reaction Time Test, Aim Trainer, Number Memory Test, Sequence Memory Test, Visual Memory Test, Chimp Test, Stroop Test and 3 more.
Photography & DIY 13 tools planned
Depth of Field Calculator, Field of View & Equivalent Focal Length, Exposure Value & Sunny-16 Calculator, 500-Rule Star Trail Calculator, Series & Parallel Resistor Calculator, Voltage Divider Calculator, 555 Timer Calculator, Capacitor Code Decoder and 5 more.
Productivity & Planning 10 tools planned
Eisenhower Matrix, Weighted Decision Matrix, Pros & Cons List Maker, Mind Map Maker, SMART Goal Builder, Book & Reading List Tracker, Chess Clock & Game Timer, Hourglass / Sand Timer and 2 more.
Printables & Creative 7 tools planned
Graph Paper & Dot Grid Generator, Lined & Handwriting Practice Sheets, Music Staff Paper Generator, Address Label & Envelope Printer, Greeting Card & Invitation Maker, Flyer & Poster Maker, Simple Logo Maker.
Kids & Classroom 25 tools planned
First-Then Board Maker, Now-Next-Later Board, Choice Board Maker, Token Board Maker, Visual Schedule Maker, Morning Routine Chart, Bedtime Routine Chart, After-School Routine Chart and 17 more.
No tool matches. Try fewer words or untick "On-device only".
Social & Creator 9