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PDF tools 27
All 27 →Add Page Numbers to PDFStamp page numbers onto a PDF — choose the corner, the starting number, the size and the fCompress PDFShrink a PDF for email or upload — a lossless clean-up first, then optional image quality Crop PDFTrim the margins of a PDF by dragging a crop box or typing millimetre margins, then apply Delete PDF PagesRemove blank, duplicate or unwanted pages from a PDF by ticking thumbnails or typing a pagEPUB to PDFConvert an EPUB eBook to a printable PDF — chapters, images and Chinese text all kept.Excel to PDFConvert an Excel .xlsx, .xls, .ods or CSV file to PDF — every sheet on its own page, landsExtract Images from PDFPull every embedded photo, logo and scan out of a PDF and save them as PNG files, one by oHTML to PDFPaste HTML or drop an .html file and turn it into a paginated PDF, rendered by your own brImages to PDFCombine JPG, PNG, WebP, BMP, TIFF, GIF and HEIC photos into one PDF — set page size, margiMarkdown to PDFTurn Markdown into a clean, GitHub-styled PDF with headings, tables, code blocks and a livMerge PDFCombine several PDF files into one, in any order you like, without uploading anything.ODT to PDFConvert an OpenDocument .odt file from LibreOffice, OpenOffice or Google Docs to PDF in yoPDF to EPUBTurn a PDF into a reflowable EPUB 3 eBook for Kindle, Apple Books, Kobo and any e-reader.PDF to ExcelPull tables out of a PDF into an Excel .xlsx workbook or CSV — rows and columns detected fPDF to ImageConvert every PDF page to a PNG, JPG or WebP image at 72, 150 or 300 DPI and download themPDF to PowerPointTurn every PDF page into a PowerPoint slide, with the page text kept as speaker notes.PDF to TextPull the text out of a PDF page by page, then copy it or save it as a .txt file.PDF to WordTurn a PDF into an editable Word .docx — paragraphs, headings and line breaks kept, or eacPDF WatermarkStamp a text or image watermark across every PDF page — set the colour, opacity, angle andPowerPoint to PDFConvert a PowerPoint .pptx to PDF in your browser — one page per slide, text and pictures Protect PDFAdd a password to a PDF and restrict printing, copying or editing — the file is encrypted Rearrange PDF PagesDrag PDF page thumbnails into a new order, reverse the whole document, and save the reordeRotate PDFTurn sideways or upside-down PDF pages the right way up — rotate every page or just the onSplit PDFSplit a PDF into single pages, into custom page ranges, or into chunks of N pages — downloText to PDFTurn plain text or a .txt file into a tidy PDF — choose the font, size, line spacing, margUnlock PDFRemove the password and the printing or copying restrictions from a PDF you know the passwWord to PDFConvert a Word .docx to PDF in your browser — headings, lists, tables, images and Chinese
Image tools 29
All 29 →ASCII ArtTurn any photo into ASCII art: choose the width, a character set, invert the ramp or keep AVIF to JPGOpen AVIF images and save them as JPG that older phones, editors and printers can read — lBMP to JPGShrink bulky BMP bitmaps into JPG files in your browser, with a quality slider and batch ZCode ScreenshotTurn a snippet into a beautiful shareable image: syntax highlighting, macOS window frame, Compress ImageCompress JPG, PNG and WebP images in your browser — quality slider, target file size in KBCrop ImageCrop a photo in your browser with a draggable box, ratio presets, rotate and flip — exportEXIF ViewerRead every EXIF tag in a photo — camera, lens, exposure, GPS location and thumbnail — and Favicon GeneratorMake a complete favicon set from an image or a letter/emoji: multi-size favicon.ico, AppleGIF MakerTurn photos or a short video clip into an animated GIF in your browser — reorder frames, sGIF to JPGConvert a GIF to a JPG still image in your browser — the first frame is flattened onto theGIF to PNGConvert a GIF into a lossless PNG still that keeps the transparent pixels — runs entirely HEIC to JPGConvert iPhone HEIC and HEIF photos to JPG right in your browser — no upload, no app, batcImage CollageJoin photos into one image: vertical long screenshot, horizontal strip or a grid, with adjImage Color PalettePull the dominant colours out of any photo with median-cut or k-means, copy HEX, RGB and HImage CompareCompare two images with a before/after slider, side by side, onion skin or a pixel differeImage ConverterConvert images between PNG, JPG, WebP, AVIF, GIF, BMP, ICO and TIFF — including iPhone HEIImage OCRExtract text from screenshots and photos in your browser with Tesseract OCR — English, ChiImage UpscalerEnlarge an image 2x, 3x or 4x with high-quality stepped resampling and an optional sharpenImage WatermarkAdd a text or logo watermark to photos in your browser: single or tiled, nine positions, oImage ⇄ Base64Turn an image into a data URI, raw Base64, a CSS url() rule or an <img> tag — and paste BaJPG to PNGConvert JPG and JPEG photos to lossless PNG in your browser — no upload, no watermark, batPNG to JPGConvert PNG images to JPG in your browser, with a quality slider and a background colour fQR Code Generator & ScannerCreate QR codes for links, Wi-Fi, contacts, email and SMS with custom colours and a centreResize ImageResize images by pixels, percentage, longest side or a social media preset — high-quality SVG EditorEdit SVG code with a live preview, optimise it by stripping comments and metadata, then exSVG to PNGRasterise SVG vector files to PNG at any scale or pixel width, with a transparent or solidTIFF to JPGConvert scanned TIFF and TIF images to JPG in the browser — the first page is rendered, noWebP to JPGTurn WebP images into JPG files that every app and printer accepts — local, batch, with quWebP to PNGConvert WebP to PNG and keep the transparent background — everything runs locally in your
ID & passport photos 2
All 2 →Audio & video 14
All 14 →Audio ConverterConvert audio between MP3, WAV and WebM/Opus with your own sample rate, channel and bitratAudio TrimmerCut an MP3, WAV or M4A down to the part you need, add fade in and fade out, and export WAVCamera Photo & VideoTake photos or record video with your webcam — countdown timer, mirror toggle and instant Device TesterCheck your camera, microphone, speakers, keyboard, mouse and screen in one page before a cExtract Audio from VideoPull the soundtrack out of an MP4, MOV or WebM file and save it as WAV or MP3, entirely inScreen RecorderRecord your screen, a window or a browser tab with system and microphone sound, then downlSpeech to Text OnlineDictate into your microphone and watch the words appear — 20+ languages, live interim resuText to SpeechRead any text aloud with the voices installed on your device — pick a voice, set speed andVideo ScreenshotGrab full-resolution stills from any video — one frame at a time, or a whole contact sheetVideo to GIFTurn any part of an MP4, WebM or MOV video into an animated GIF — pick the clip, frame ratVideo to MP3Convert MP4, MOV or WebM video to an MP3 file — choose the bitrate and download, with no uVideo TrimmerCut a video down to the part you want and optionally crop the frame — re-encoded in your bVoice RecorderRecord your voice in the browser with a live level meter, pause and resume, then download YouTube Thumbnail Downloader AIPaste any YouTube link and grab its cover image in every size, from 120px up to full 1280×
Data & encoding 14
All 14 →API Mock Data GeneratorGenerate fake JSON or CSV test data from a template of tokens — names, emails, dates, UUIDBase64 Encode / DecodeEncode and decode Base64 text, URL-safe Base64 and data URIs, and convert any file to BaseCSV / Excel ViewerOpen CSV, TSV, XLSX, XLS and ODS files in your browser: sort, filter and search huge sheetCSV ⇄ JSONConvert CSV or TSV to JSON and JSON back to CSV, with delimiter detection, nested flatteniHTML Entities Encode / DecodeConvert text to HTML entities (named, decimal or hex) and decode entities back to plain teJSON FormatterFormat, minify and validate JSON with a precise error position, key sorting and a collapsiJSON RepairFix broken JSON — single quotes, trailing commas, unquoted keys, comments, Python literalsJSON Schema GeneratorTurn sample JSON into a JSON Schema — types, required keys, enums and string formats inferJSON ⇄ YAMLConvert JSON to YAML and YAML to JSON in your browser, with indent, sort-key and multi-docJSONPath QueryRun JSONPath expressions against any JSON document and see the matched values, paths and JNumber Base ConverterConvert numbers between binary, octal, decimal, hexadecimal and any base from 2 to 36, witSQLite ViewerOpen a SQLite database in your browser: list tables with row counts, browse rows, run SQL URL Encode / DecodeEncode and decode URLs and query strings online — percent-encoding, form (+) encoding and XML ⇄ JSONConvert XML to JSON and JSON back to XML in your browser, with attribute prefix, CDATA and
Developer tools 21
All 21 →chmod CalculatorTick the Unix permissions you need and get the octal number, the rwx string and the exact Code FormatterFormat or minify JavaScript, TypeScript, JSON, HTML, CSS, SCSS, Markdown and YAML with PreCron Expression ParserTranslate any cron expression into plain English, see the next 10 run times in your timezoGit Cheat SheetA searchable Git command reference grouped by task — branching, remotes, undoing, stash, rHTML PreviewWrite HTML, CSS and JavaScript on the left and see the rendered page instantly on the righHTTP Status CodesEvery HTTP status code with its meaning, when to return it, what to do when you receive itJWT Decoder & EncoderDecode a JSON Web Token, read its claims and expiry, verify HS256 or RS256/ES256 signatureLorem Ipsum GeneratorGenerate Lorem Ipsum placeholder text by paragraphs, sentences, words or list items — clasMarkdown EditorWrite Markdown with a live GFM preview — tables, task lists and syntax-highlighted code — Meta Tag GeneratorBuild the whole <head> block — title, description, canonical, Open Graph, Twitter card, faMIME Type LookupLook up the MIME type for any file extension, search the other way round, and detect a filRegex Cheat SheetA searchable regular expression reference: character classes, anchors, quantifiers, groupsRegex TesterTest JavaScript regular expressions live: highlighted matches, capture groups, replace preRegex VisualizerTurn a JavaScript regular expression into a railroad diagram you can read at a glance, andSQL FormatterFormat and beautify SQL for MySQL, PostgreSQL, SQLite, T-SQL, BigQuery and more — or minifTable GeneratorFill in a spreadsheet-style grid — or paste from Excel — and get the table as HTML, MarkdoText DiffCompare two texts side by side or as a unified diff, by line, word or character — with chaUnicode LookupInspect any text character by character: code point, name, block, UTF-8 and UTF-16 bytes, Unix Timestamp ConverterConvert Unix timestamps to dates and back, in local time, UTC or any timezone, with ISO 86URL Parser & BuilderSplit any URL into protocol, host, port, path, query parameters and hash, edit them and reUUID GeneratorGenerate UUID v4, v1, v7, v3 and v5 in bulk — plus ULID and Nano ID — with uppercase, brac
Text tools 12
All 12 →Case ConverterConvert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, keChinese to PinyinConvert Chinese characters to pinyin with tone marks, tone numbers or initials, with a rubEmoji PickerSearch 1,800+ emoji in English or Chinese, pick a skin tone, build a string and copy it — Find & ReplaceFind and replace text with plain, whole-word or regex rules — stack several rules, previewRemove Duplicate LinesRemove duplicate lines from a list, keep the first or last copy, or show only the duplicatSimplified ⇄ Traditional ChineseConvert Chinese between Simplified and Traditional with Taiwan, Hong Kong and Japanese varSlug GeneratorTurn any title into a clean URL slug — Chinese is transliterated to pinyin, accents are stSort LinesSort lines A→Z, Z→A, by number, by length or at random, with Chinese pinyin order, de-duplSpecial SymbolsCopy special characters — maths, arrows, currency, Chinese punctuation, circled numbers, bText CleanerClean up messy text: strip extra spaces, blank lines, HTML tags, URLs, emoji and invisibleWord CountCount words, characters, sentences, paragraphs and reading time as you type.Word FrequencyCount how often each word, character or Chinese phrase appears, with a chart, stopword fil
CSS & design 20
All 20 →Border Radius GeneratorDrag eight handles to shape any corner, including organic blob shapes, and copy the borderBox Shadow GeneratorStack multiple box-shadow layers with live preview, Material elevation and neumorphic presColor ConverterPaste any colour — name, hex, rgb, hsl, hwb, lab, lch, oklch or cmyk — and get every otherColor PickerPick any colour with a saturation square, hue and alpha sliders, read HEX/RGB/HSL/HSV/CMYKCSS Animation GeneratorBuild @keyframes animations visually with a cubic-bezier easing editor, ready-made effectsCSS Background Patterns32 pure-CSS background patterns — stripes, dots, grids, checkerboard, zigzag, waves, hexagCSS Filter GeneratorTune blur, brightness, contrast, hue-rotate, drop-shadow and more with live sliders, then CSS Gradient GeneratorBuild linear, radial and conic CSS gradients visually, then copy the CSS, a Tailwind classCSS Gradient TextFill text with a linear, radial or conic gradient using background-clip, tune the colour sCSS Grid GeneratorDesign a CSS Grid visually — set track sizes and gaps, drag to name areas, and copy the coCSS Loading Spinners18 pure-CSS loading spinners — rings, dots, bars, pulse, ripple, skeleton shimmer — with cCSS Shorthand GeneratorBuild the shortest margin, padding, border, font, flex, transition, animation, background,CSS Unit ConverterConvert px to rem, em, pt, %, vw and vh with your own root size and viewport, plus a clampFlexbox PlaygroundTry every flex container and item property on a live preview, then copy the CSS and HTML.Glassmorphism GeneratorDesign a frosted-glass card with backdrop-filter — blur, transparency, saturation, border Skeleton Screen GeneratorCompose a loading skeleton from avatars, headings, text lines, images and buttons, set theSocial Media Image Sizes2026 image size reference for Instagram, X, Facebook, LinkedIn, YouTube, TikTok, PinterestSocial Share Link GeneratorTurn a URL, title and description into ready share links for X, Facebook, LinkedIn, RedditSVG Sprite & Icon Font KitDrop in SVG icons and get an SVG <symbol> sprite, a CSS data-URI icon set and a real OTF/WTailwind CSS Cheat SheetSearchable Tailwind CSS reference: every core utility class mapped to the CSS it generates
Network tools 4
All 4 →Browser & Device InfoSee what your browser reveals: user agent, engine, OS, screen, language, timezone, GPU, coDNS Lookup AIQuery A, AAAA, CNAME, MX, TXT, NS, SOA, SRV, CAA and PTR records over encrypted DNS-over-HInternet Speed Test OnlineMeasure your download and upload speed, latency and jitter in the browser against CloudflaIP Address Tools OnlineSee your public IPv4 and IPv6, validate any IP, and calculate a CIDR subnet: network, broa
Everyday calculators 12
All 12 →Age CalculatorFind your exact age in years, months and days, count down to your next birthday, and see yAmount to WordsTurn a number into the Chinese financial capitals used on invoices and into English chequeBMI CalculatorWork out your BMI against both the WHO and the Chinese standard, with a healthy weight ranCalculatorA standard and scientific calculator that evaluates whole expressions, with degrees or radCalendar & HolidaysA month and year calendar with Chinese lunar dates, the 24 solar terms, traditional festivChina Income Tax CalculatorWork out Chinese individual income tax month by month with the cumulative withholding methCountdown & StopwatchA countdown timer with presets and an alarm, plus a stopwatch with lap times and a full-scDate CalculatorCount the days between two dates, add or subtract days, weeks and months, find the weekdayMortgage CalculatorCompare equal-instalment and equal-principal repayment, add a housing-fund loan, see the fPomodoro TimerA focus timer that cycles work sessions and breaks, with a progress ring, desktop notificaRandom Decision MakerRoll dice, flip a coin, spin a wheel, draw random numbers, shuffle a list or split people Unit ConverterConvert length, area, volume, weight, temperature, speed, pressure, energy, power, data, t
Security & files 9
All 9 →Bcrypt HashGenerate and verify bcrypt password hashes in your browser, with Argon2id and PBKDF2 as alFile Checksum VerifierCheck a downloaded file against its published MD5, SHA-1 or SHA-256 checksum, and hash manFile EncryptionEncrypt any file with a password using AES-256-GCM, and decrypt .enc files back to the oriHash GeneratorGenerate MD5, SHA-1, SHA-256, SHA-512, SHA-3, RIPEMD-160 and CRC32 hashes of text or filesPassword GeneratorGenerate strong random passwords, pronounceable passwords and Diceware passphrases, with aRSA Key GeneratorGenerate RSA, ECDSA or Ed25519 key pairs in your browser, export them as PEM or JWK, and tText EncryptionEncrypt and decrypt text with AES-256-GCM and a password, entirely in your browser — plus TOTP AuthenticatorTurn a two-factor secret or otpauth QR code into live 6-digit TOTP codes, and create new sZIP ManagerCreate ZIP archives from files or a whole folder, and open an existing ZIP to browse, prev
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