🧰 164 free online tools

🔗 Merge PDFHOT Combine several PDF files into one, in any order you like, without uploading anything. ✂️ Split PDFHOT Split a PDF into single pages, into custom page ranges, or into chunks of N pages — download them as a ZIP. 🔄 Rotate PDF Turn sideways or upside-down PDF pages the right way up — rotate every page or just the ones you pick. 🗑️ Delete PDF Pages Remove blank, duplicate or unwanted pages from a PDF by ticking thumbnails or typing a page range. 🔀 Rearrange PDF Pages Drag PDF page thumbnails into a new order, reverse the whole document, and save the reordered file. 🏞️ Extract Images from PDF Pull every embedded photo, logo and scan out of a PDF and save them as PNG files, one by one or as a ZIP. 🔢 Add Page Numbers to PDF Stamp page numbers onto a PDF — choose the corner, the starting number, the size and the format. 💧 PDF Watermark Stamp a text or image watermark across every PDF page — set the colour, opacity, angle and tiling. 📦 Compress PDF Shrink a PDF for email or upload — a lossless clean-up first, then optional image quality presets. 🖼️ PDF to ImageHOT Convert every PDF page to a PNG, JPG or WebP image at 72, 150 or 300 DPI and download them as a ZIP. 🔤 PDF to Text Pull the text out of a PDF page by page, then copy it or save it as a .txt file. 🔓 Unlock PDF Remove the password and the printing or copying restrictions from a PDF you know the password to. 🔐 Protect PDF Add a password to a PDF and restrict printing, copying or editing — the file is encrypted in your browser. 📐 Crop PDF Trim the margins of a PDF by dragging a crop box or typing millimetre margins, then apply it to every page. 📝 PDF to WordHOT Turn a PDF into an editable Word .docx — paragraphs, headings and line breaks kept, or each page embedded as an image. 📊 PDF to Excel Pull tables out of a PDF into an Excel .xlsx workbook or CSV — rows and columns detected from the text layout. 📽️ PDF to PowerPoint Turn every PDF page into a PowerPoint slide, with the page text kept as speaker notes. 📚 PDF to EPUB Turn a PDF into a reflowable EPUB 3 eBook for Kindle, Apple Books, Kobo and any e-reader. 📄 Word to PDFHOT Convert a Word .docx to PDF in your browser — headings, lists, tables, images and Chinese text all render. 📑 Excel to PDF Convert an Excel .xlsx, .xls, .ods or CSV file to PDF — every sheet on its own page, landscape or portrait. 🖥️ PowerPoint to PDF Convert a PowerPoint .pptx to PDF in your browser — one page per slide, text and pictures placed where the slide put them. 🖼️ Images to PDFHOT Combine JPG, PNG, WebP, BMP, TIFF, GIF and HEIC photos into one PDF — set page size, margins and the order. 📃 ODT to PDF Convert an OpenDocument .odt file from LibreOffice, OpenOffice or Google Docs to PDF in your browser. 📖 EPUB to PDF Convert an EPUB eBook to a printable PDF — chapters, images and Chinese text all kept. 🌐 HTML to PDF Paste HTML or drop an .html file and turn it into a paginated PDF, rendered by your own browser. 📝 Markdown to PDF Turn Markdown into a clean, GitHub-styled PDF with headings, tables, code blocks and a live preview. 🔤 Text to PDF Turn plain text or a .txt file into a tidy PDF — choose the font, size, line spacing, margins and page numbers.

🔄 Image ConverterHOT Convert images between PNG, JPG, WebP, AVIF, GIF, BMP, ICO and TIFF — including iPhone HEIC — without uploading anything. 🔁 PNG to JPG Convert PNG images to JPG in your browser, with a quality slider and a background colour for transparent areas. 🔁 JPG to PNG Convert JPG and JPEG photos to lossless PNG in your browser — no upload, no watermark, batch and ZIP download. 🔁 WebP to JPG Turn WebP images into JPG files that every app and printer accepts — local, batch, with quality control. 🔁 WebP to PNG Convert WebP to PNG and keep the transparent background — everything runs locally in your browser. 📱 HEIC to JPGHOT Convert iPhone HEIC and HEIF photos to JPG right in your browser — no upload, no app, batch with ZIP download. 🖨️ TIFF to JPG Convert scanned TIFF and TIF images to JPG in the browser — the first page is rendered, no upload needed. 🔁 BMP to JPG Shrink bulky BMP bitmaps into JPG files in your browser, with a quality slider and batch ZIP download. 🔁 GIF to JPG Convert a GIF to a JPG still image in your browser — the first frame is flattened onto the background colour you pick. 🔁 GIF to PNG Convert a GIF into a lossless PNG still that keeps the transparent pixels — runs entirely in your browser. 🔁 AVIF to JPG Open AVIF images and save them as JPG that older phones, editors and printers can read — local and batch. ✒️ SVG to PNG Rasterise SVG vector files to PNG at any scale or pixel width, with a transparent or solid background. 🗜️ Compress ImageHOT Compress JPG, PNG and WebP images in your browser — quality slider, target file size in KB, resize and batch ZIP download. 📐 Resize Image Resize images by pixels, percentage, longest side or a social media preset — high-quality downscaling, batch and ZIP download. ✂️ Crop ImageHOT Crop a photo in your browser with a draggable box, ratio presets, rotate and flip — export to PNG, JPG or WebP. 🎞️ GIF Maker Turn photos or a short video clip into an animated GIF in your browser — reorder frames, set the speed, size and looping. 💧 Image WatermarkHOT Add a text or logo watermark to photos in your browser: single or tiled, nine positions, opacity, rotation and batch export as a ZIP. 🧩 Image Collage Join photos into one image: vertical long screenshot, horizontal strip or a grid, with adjustable gap, background colour and rounded corners. ✒️ SVG Editor Edit SVG code with a live preview, optimise it by stripping comments and metadata, then export SVG, PNG at any scale or a data URI. 🔍 EXIF Viewer Read every EXIF tag in a photo — camera, lens, exposure, GPS location and thumbnail — and download a copy with all metadata removed. 🔤 Image OCRHOT Extract text from screenshots and photos in your browser with Tesseract OCR — English, Chinese, Japanese, Korean, French, German and Spanish. 🔬 Image Compare Compare two images with a before/after slider, side by side, onion skin or a pixel difference view that reports how much changed. 🔡 Image ⇄ Base64 Turn an image into a data URI, raw Base64, a CSS url() rule or an <img> tag — and paste Base64 back to preview and download the original file. 🔠 ASCII Art Turn any photo into ASCII art: choose the width, a character set, invert the ramp or keep the colours, then copy the text or save a PNG. ⭐ Favicon Generator Make a complete favicon set from an image or a letter/emoji: multi-size favicon.ico, Apple and Android PNGs, site.webmanifest and the HTML snippet, zipped. 🎨 Image Color Palette Pull the dominant colours out of any photo with median-cut or k-means, copy HEX, RGB and HSL, pick colours with an eyedropper and export CSS variables or JSON. 📸 Code Screenshot Turn a snippet into a beautiful shareable image: syntax highlighting, macOS window frame, four themes, gradient backgrounds and 1x/2x PNG export. 🔳 QR Code Generator & ScannerHOT Create QR codes for links, Wi-Fi, contacts, email and SMS with custom colours and a centre logo, or scan one from an image or your camera. 🔎 Image Upscaler Enlarge an image 2x, 3x or 4x with high-quality stepped resampling and an optional sharpening pass, with a before/after slider.

🪪 Passport & ID Photo MakerHOT Make a compliant passport, visa or ID photo in your browser: 25+ country presets, automatic face alignment, background replacement and a printable 4x6 sheet — nothing is uploaded. 🐶 AI Pet Passport PhotoHOT Turn a photo of your dog, cat or rabbit into an AI passport-style ID photo — 17 document sizes, 20 outfits, a printable sheet and a playful pet passport card.

🎞️ Video to GIFHOT Turn any part of an MP4, WebM or MOV video into an animated GIF — pick the clip, frame rate and width right in your browser. ✂️ Video Trimmer Cut a video down to the part you want and optionally crop the frame — re-encoded in your browser, nothing uploaded. 📸 Video Screenshot Grab full-resolution stills from any video — one frame at a time, or a whole contact sheet every few seconds. 🎵 Extract Audio from Video Pull the soundtrack out of an MP4, MOV or WebM file and save it as WAV or MP3, entirely in your browser. ✂️ Audio Trimmer Cut an MP3, WAV or M4A down to the part you need, add fade in and fade out, and export WAV or MP3. 🔁 Audio Converter Convert audio between MP3, WAV and WebM/Opus with your own sample rate, channel and bitrate settings — locally. 🖥️ Screen Recorder Record your screen, a window or a browser tab with system and microphone sound, then download the WebM file. 📷 Camera Photo & Video Take photos or record video with your webcam — countdown timer, mirror toggle and instant download, nothing uploaded. 🎙️ Voice Recorder Record your voice in the browser with a live level meter, pause and resume, then download WebM or WAV. 🗣️ Speech to Text Dictate into your microphone and watch the words appear — 20+ languages, live interim results, copy or download the transcript. 🔊 Text to Speech Read any text aloud with the voices installed on your device — pick a voice, set speed and pitch, and follow the highlighted sentence. 🖼️ YouTube Thumbnail Downloader Paste any YouTube link and grab its cover image in every size, from 120px up to full 1280×720 maxres. 🧪 Device Tester Check your camera, microphone, speakers, keyboard, mouse and screen in one page before a call or a stream. 🎧 Video to MP3 Convert MP4, MOV or WebM video to an MP3 file — choose the bitrate and download, with no upload and no sign-up.

🧾 JSON FormatterHOT Format, minify and validate JSON with a precise error position, key sorting and a collapsible tree view. 🩹 JSON Repair Fix broken JSON — single quotes, trailing commas, unquoted keys, comments, Python literals and missing brackets — and see exactly what changed. 🔐 Base64 Encode / DecodeHOT Encode and decode Base64 text, URL-safe Base64 and data URIs, and convert any file to Base64 and back. 🔗 URL Encode / DecodeHOT Encode and decode URLs and query strings online — percent-encoding, form (+) encoding and a query string parser. 🔤 HTML Entities Encode / Decode Convert text to HTML entities (named, decimal or hex) and decode entities back to plain text, with a searchable entity table. 🔢 Number Base Converter Convert numbers between binary, octal, decimal, hexadecimal and any base from 2 to 36, with big-number and two's-complement support. 🔁 JSON ⇄ YAML Convert JSON to YAML and YAML to JSON in your browser, with indent, sort-key and multi-document support. 🧬 XML ⇄ JSON Convert XML to JSON and JSON back to XML in your browser, with attribute prefix, CDATA and pretty-print options. 🧾 CSV ⇄ JSON Convert CSV or TSV to JSON and JSON back to CSV, with delimiter detection, nested flattening and a table preview. 🎯 JSONPath Query Run JSONPath expressions against any JSON document and see the matched values, paths and JSON Pointers. 🧬 JSON Schema Generator Turn sample JSON into a JSON Schema — types, required keys, enums and string formats inferred automatically. 🎲 API Mock Data Generator Generate fake JSON or CSV test data from a template of tokens — names, emails, dates, UUIDs and more, with a reproducible seed. 📊 CSV / Excel Viewer Open CSV, TSV, XLSX, XLS and ODS files in your browser: sort, filter and search huge sheets, then export CSV or JSON. 🗄️ SQLite Viewer Open a SQLite database in your browser: list tables with row counts, browse rows, run SQL queries and export CSV or JSON.

🔎 Regex TesterHOT Test JavaScript regular expressions live: highlighted matches, capture groups, replace preview and a shareable link. 📋 Regex Cheat Sheet A searchable regular expression reference: character classes, anchors, quantifiers, groups, lookaround, flags and Unicode properties, each with a live example. 🚂 Regex Visualizer Turn a JavaScript regular expression into a railroad diagram you can read at a glance, and export it as SVG or PNG. 🧹 Code FormatterHOT Format or minify JavaScript, TypeScript, JSON, HTML, CSS, SCSS, Markdown and YAML with Prettier, right in your browser. 👁️ HTML Preview Write HTML, CSS and JavaScript on the left and see the rendered page instantly on the right, in a sandboxed frame. 🗄️ SQL Formatter Format and beautify SQL for MySQL, PostgreSQL, SQLite, T-SQL, BigQuery and more — or minify it back to one line. 🧮 Table Generator Fill in a spreadsheet-style grid — or paste from Excel — and get the table as HTML, Markdown, CSV, JSON or LaTeX. 🏷️ Meta Tag Generator Build the whole <head> block — title, description, canonical, Open Graph, Twitter card, favicons and JSON-LD — with live Google and social previews. 🆔 UUID Generator Generate UUID v4, v1, v7, v3 and v5 in bulk — plus ULID and Nano ID — with uppercase, braces and no-dash formatting. 🔑 JWT Decoder & Encoder Decode a JSON Web Token, read its claims and expiry, verify HS256 or RS256/ES256 signatures, and build new tokens — all offline. ⏰ Cron Expression ParserHOT Translate any cron expression into plain English, see the next 10 run times in your timezone, and build one field by field. 🕐 Unix Timestamp ConverterHOT Convert Unix timestamps to dates and back, in local time, UTC or any timezone, with ISO 8601, RFC 2822 and relative formats. 🌿 Git Cheat Sheet A searchable Git command reference grouped by task — branching, remotes, undoing, stash, rebase, worktree — with one-click copy. 📝 Markdown EditorHOT Write Markdown with a live GFM preview — tables, task lists and syntax-highlighted code — then export standalone HTML or download the .md file. 📝 Lorem Ipsum Generator Generate Lorem Ipsum placeholder text by paragraphs, sentences, words or list items — classic Latin or Chinese filler, as plain text or HTML. 🔀 Text DiffHOT Compare two texts side by side or as a unified diff, by line, word or character — with change stats, ignore case/whitespace options and patch export. 🔤 Unicode Lookup Inspect any text character by character: code point, name, block, UTF-8 and UTF-16 bytes, HTML entity, JavaScript and URL escapes. 🗂️ MIME Type Lookup Look up the MIME type for any file extension, search the other way round, and detect a file's real type from its magic bytes. 🚦 HTTP Status Codes Every HTTP status code with its meaning, when to return it, what to do when you receive it, and a link to the defining RFC. 🔗 URL Parser & Builder Split any URL into protocol, host, port, path, query parameters and hash, edit them and rebuild the URL or a curl command. 🔐 chmod Calculator Tick the Unix permissions you need and get the octal number, the rwx string and the exact chmod command.

🔢 Word CountHOT Count words, characters, sentences, paragraphs and reading time as you type. 🔎 Find & Replace Find and replace text with plain, whole-word or regex rules — stack several rules, preview every change and undo. 🔤 Sort Lines Sort lines A→Z, Z→A, by number, by length or at random, with Chinese pinyin order, de-duplication and trimming. 🧹 Text Cleaner Clean up messy text: strip extra spaces, blank lines, HTML tags, URLs, emoji and invisible characters, and convert full-width to half-width. 🔠 Case Converter Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case and more in one click. 🀄 Simplified ⇄ Traditional ChineseHOT Convert Chinese between Simplified and Traditional with Taiwan, Hong Kong and Japanese variants — including regional vocabulary. 🔡 Chinese to Pinyin Convert Chinese characters to pinyin with tone marks, tone numbers or initials, with a ruby view and correct surname readings. ✱ Special Symbols Copy special characters — maths, arrows, currency, Chinese punctuation, circled numbers, box drawing, Greek and kaomoji. 😀 Emoji Picker Search 1,800+ emoji in English or Chinese, pick a skin tone, build a string and copy it — with code points and shortcodes. 📊 Word Frequency Count how often each word, character or Chinese phrase appears, with a chart, stopword filters and CSV export. 🧾 Remove Duplicate Lines Remove duplicate lines from a list, keep the first or last copy, or show only the duplicates — with counts. 🔗 Slug Generator Turn any title into a clean URL slug — Chinese is transliterated to pinyin, accents are stripped and stopwords can be removed.

🌈 CSS Gradient GeneratorHOT Build linear, radial and conic CSS gradients visually, then copy the CSS, a Tailwind class or an SVG file. 🎛️ CSS Filter Generator Tune blur, brightness, contrast, hue-rotate, drop-shadow and more with live sliders, then copy the CSS filter rule. ✨ CSS Animation Generator Build @keyframes animations visually with a cubic-bezier easing editor, ready-made effects and a live preview. 🌓 Box Shadow Generator Stack multiple box-shadow layers with live preview, Material elevation and neumorphic presets, then copy the CSS. ⬭ Border Radius Generator Drag eight handles to shape any corner, including organic blob shapes, and copy the border-radius CSS. 🎨 Color PickerHOT Pick any colour with a saturation square, hue and alpha sliders, read HEX/RGB/HSL/HSV/CMYK and check WCAG contrast. 🔄 Color Converter Paste any colour — name, hex, rgb, hsl, hwb, lab, lch, oklch or cmyk — and get every other format instantly. 🔲 CSS Grid Generator Design a CSS Grid visually — set track sizes and gaps, drag to name areas, and copy the container CSS and HTML. 📐 Flexbox Playground Try every flex container and item property on a live preview, then copy the CSS and HTML. 📏 CSS Unit Converter Convert px to rem, em, pt, %, vw and vh with your own root size and viewport, plus a clamp() fluid-type generator. 🌬️ Tailwind CSS Cheat Sheet Searchable Tailwind CSS reference: every core utility class mapped to the CSS it generates, with the spacing scale, colour palette and responsive prefixes. 🧩 SVG Sprite & Icon Font Kit Drop in SVG icons and get an SVG <symbol> sprite, a CSS data-URI icon set and a real OTF/WOFF icon font with @font-face — all generated in your browser. 🧱 CSS Background PatternsHOT 32 pure-CSS background patterns — stripes, dots, grids, checkerboard, zigzag, waves, hexagons and more — with live colour, size and opacity controls and copyable CSS. ⏳ CSS Loading SpinnersHOT 18 pure-CSS loading spinners — rings, dots, bars, pulse, ripple, skeleton shimmer — with colour, size and speed controls and copyable HTML + CSS. 🌈 CSS Gradient Text Fill text with a linear, radial or conic gradient using background-clip, tune the colour stops and animation, then copy the CSS or export a transparent PNG. 🦴 Skeleton Screen Generator Compose a loading skeleton from avatars, headings, text lines, images and buttons, set the shimmer and radius, and copy ready HTML + CSS with a dark-mode variant. ✂️ CSS Shorthand Generator Build the shortest margin, padding, border, font, flex, transition, animation, background, outline, inset and grid-area shorthands — or paste a shorthand and expand it back to longhand. 🔗 Social Share Link Generator Turn a URL, title and description into ready share links for X, Facebook, LinkedIn, Reddit, WhatsApp, Telegram, Weibo, QQ, WeChat QR, email and more, plus a copy-paste HTML button bar. 📐 Social Media Image Sizes 2026 image size reference for Instagram, X, Facebook, LinkedIn, YouTube, TikTok, Pinterest, WeChat, Xiaohongshu, Douyin, Bilibili and Weibo — with a one-click blank canvas download and safe-zone overlay. 🧊 Glassmorphism GeneratorHOT Design a frosted-glass card with backdrop-filter — blur, transparency, saturation, border and shadow — over a colourful backdrop, and copy CSS with a no-backdrop-filter fallback.

🌍 IP Address ToolsHOT See your public IPv4 and IPv6, validate any IP, and calculate a CIDR subnet: network, broadcast, host range and mask. 🔎 DNS Lookup Query A, AAAA, CNAME, MX, TXT, NS, SOA, SRV, CAA and PTR records over encrypted DNS-over-HTTPS, with TTL and reverse lookup. 🚀 Internet Speed Test Measure your download and upload speed, latency and jitter in the browser against Cloudflare's global network. 🧭 Browser & Device Info See what your browser reveals: user agent, engine, OS, screen, language, timezone, GPU, connection and a full feature-support matrix.

🧮 CalculatorHOT A standard and scientific calculator that evaluates whole expressions, with degrees or radians, memory keys and a history list. 🏠 Mortgage Calculator Compare equal-instalment and equal-principal repayment, add a housing-fund loan, see the full amortisation table and test an early repayment. 🧾 China Income Tax Calculator Work out Chinese individual income tax month by month with the cumulative withholding method, social insurance, special deductions and the annual bonus. 🔠 Amount to Words Turn a number into the Chinese financial capitals used on invoices and into English cheque words, for several currencies. 📏 Unit ConverterHOT Convert length, area, volume, weight, temperature, speed, pressure, energy, power, data, time, angle and fuel economy, including Chinese units. 📆 Date Calculator Count the days between two dates, add or subtract days, weeks and months, find the weekday and week number, and run a live countdown. 📅 Calendar & Holidays A month and year calendar with Chinese lunar dates, the 24 solar terms, traditional festivals and public holidays for China, the US and the UK. ⚖️ BMI Calculator Work out your BMI against both the WHO and the Chinese standard, with a healthy weight range, BMR, daily calories and a body-fat estimate. 🎂 Age Calculator Find your exact age in years, months and days, count down to your next birthday, and see your Chinese and Western zodiac signs. 🍅 Pomodoro Timer A focus timer that cycles work sessions and breaks, with a progress ring, desktop notifications, a chime and settings that stick. 🎲 Random Decision Maker Roll dice, flip a coin, spin a wheel, draw random numbers, shuffle a list or split people into teams — all with real cryptographic randomness. ⏱️ Countdown & Stopwatch A countdown timer with presets and an alarm, plus a stopwatch with lap times and a full-screen big-digit display.

🧮 Hash GeneratorHOT Generate MD5, SHA-1, SHA-256, SHA-512, SHA-3, RIPEMD-160 and CRC32 hashes of text or files, with HMAC support. 🔑 Password GeneratorHOT Generate strong random passwords, pronounceable passwords and Diceware passphrases, with an entropy and crack-time estimate. 🔒 Text Encryption Encrypt and decrypt text with AES-256-GCM and a password, entirely in your browser — plus classic Caesar, Vigenère and Atbash ciphers. 🗝️ RSA Key Generator Generate RSA, ECDSA or Ed25519 key pairs in your browser, export them as PEM or JWK, and try encryption and signing with them. 🧂 Bcrypt Hash Generate and verify bcrypt password hashes in your browser, with Argon2id and PBKDF2 as alternatives. 🗄️ File Encryption Encrypt any file with a password using AES-256-GCM, and decrypt .enc files back to the original name — all inside your browser. 🗜️ ZIP Manager Create ZIP archives from files or a whole folder, and open an existing ZIP to browse, preview, extract, add or delete files — all offline. ✅ File Checksum Verifier Check a downloaded file against its published MD5, SHA-1 or SHA-256 checksum, and hash many files at once with a CSV export. ⏱️ TOTP Authenticator Turn a two-factor secret or otpauth QR code into live 6-digit TOTP codes, and create new secrets with their QR — offline in your browser.