QiLing Tools🏷️Tool Tags
45 tags. A tool can have several tags, making it easy to find across categories.
📄PDF76 toolsEvery tool that works with PDF files: merge, split, compress, convert, sign, OCR and more, processed locally in your browser.🖼️Image116 toolsEvery tool that works with images: compress, crop, convert, remove backgrounds, adjust colors, effects, and export images from PDF or video.🎵Audio50 toolsEvery tool that works with audio: trim, convert, denoise, mix, record, speech to text and more, running locally with FFmpeg.🎬Video54 toolsEvery tool that works with video: compress, trim, merge, subtitles, GIF conversion, screen recording and more, processed locally.📐Math109 toolsFunction graphing, calculators, equation solvers, calculus, matrices, geometry and number theory tools, ready to use.🧪Chemistry35 toolsBalance chemical equations, molar mass, periodic table, pH, titration curves, gas laws, solutions, equilibrium, electrochemistry and more.⚛️Physics42 toolsSimulations of projectiles, pendulums, collisions and orbits; optics and blackbody radiation; waves and the Doppler effect; circuits and relativity.📊Statistics16 toolsAverages, regression, probability distributions, hypothesis tests, Bayes, normal tables, box plots, sample size and random simulation.💰Finance15 toolsMortgages, interest, income tax, salary, investment returns, discounts and unit prices, bill splitting, expense tracking and invoices.🎓Education105 toolsTools for students and teachers: step-by-step solvers, math drills, handwriting sheets, timetables, flashcards, certificates and visual demos.🧒Kids15 toolsMath drills, times tables, long division, telling time, abacus, fraction visuals, the 24 game, handwriting sheets and more for young learners.🎼Music27 toolsTuner, metronome, piano, drum machine, chords and scales, circle of fifths, MIDI, BPM detection, karaoke and lyrics.📝Text28 toolsWord count, diff, sort and dedupe, find and replace, case conversion, Chinese conversion, OCR, text to speech and more.🀄Chinese8 toolsPinyin, Simplified/Traditional conversion, handwriting sheets, Chinese numerals, handwriting fonts, lunar calendar and WeChat formatting.Ⓜ️Markdown12 toolsMarkdown preview, tables, conversion to and from HTML and PDF, Markdown slides and mind maps.🤖AI15 toolsAI models running locally in your browser: background removal, upscaling, OCR, face blurring, smart crop, retouching, speech recognition.🔒Privacy & Security31 toolsEncryption, password generation and checking, EXIF removal, redaction, face blurring, hashing, TOTP codes and certificate decoding.🔁Converters56 toolsConvert between PDF, image, audio, video, document and data formats, plus number bases, units, encodings and time zones.🗜️Compression14 toolsZip and unzip files, extract RAR / 7Z archives, compress PDFs, images and videos to a target size, and minify SVG, CSS and JavaScript.✂️Merge & Split25 toolsMerge or split PDFs, audio and video, stitch and slice images, collages, video grids and panoramas.💧Watermark10 toolsAdd text or logo watermarks to PDFs, images and videos, remove watermarks, and add camera info frames.🎞️GIF6 toolsMake and edit GIFs, convert video to GIF or animated WebP, and GIF to video.✨Photo Editing26 toolsColor adjustments, filters, curves, LUTs, sharpening and denoising, auto enhance, retouching, background blur, crop and straighten, video grading.🪄Creative Effects34 toolsSketch, oil paint, cartoon, pixel art, ASCII art, glitch, double exposure, halftone, tilt-shift, fractals, voice changer and 8D audio.🎨Design41 toolsColor picking and palettes, gradients and shadows, contrast checks, icons and favicons, wallpapers and avatars, cards, art QR codes and textures.📈Charts & Visualization15 toolsCharts, function graphs, mind maps, flowcharts, Gantt charts, word clouds, waveforms, spectrograms and algorithm visualizations.📑Documents67 toolsPDF to Word, PPT and Excel, resumes, invoices, spreadsheets, slides, email signatures, business cards and calendars.🖨️Printing35 toolsID photo layouts, ID card copies, booklets, poster tiling, N-up, graph paper, handwriting sheets, labels, envelopes and planners.📠Scanning12 toolsDocument scanning, OCR, deskewing, duplex merging, spread splitting, blank page removal and scan effects.⏺️Recording9 toolsRecord audio, screen and webcam, speech to text, sound level meter and tuner.💬Subtitles6 toolsBurn subtitles, extract embedded subtitles, edit subtitles, LRC lyrics and speech to text.📱Social Media21 toolsPlatform image sizes, screenshot beautifier, memes, avatars, video covers, vertical reframing, audiograms and WeChat formatting.🔳QR & Barcode7 toolsGenerate QR codes, art QR codes, scan QR codes and generate barcodes.⏰Date & Time17 toolsTimestamps, date math, timers, time zones, calendars, countdowns, cron expressions and habit tracking.🏠Everyday Life24 toolsBMI, bill splitting, unit prices, expenses, mortgage, tax and salary, random pickers, ID photos, white noise and more.🎲Fun & Games16 toolsSpin wheel, random picker, 24 game, sudoku, typing test, bingo, word puzzles, jigsaws, dice and game sound effects.💻Developer93 toolsJSON, encoding, regex, hashing, network debugging, config generators and more developer tools, running locally.🗃️Data Formats28 toolsJSON formatting and diffing, CSV / YAML / XML / TOML conversion, JSON to TypeScript or SQL, schemas, binary decoding and tables.🧹Code Formatting8 toolsFormat, minify and escape JSON, SQL, CSS, HTML, JavaScript and XML.🌈Frontend29 toolsCSS gradients and shadows, clip-path, Flex/Grid, Tailwind palettes, meta tags, favicons, sprites, SVG optimization, XPath and more.🌐Network & HTTP17 toolsHTTP requests and status codes, WebSocket, curl to code, URL parsing, subnet and IPv6 calculators, security headers and certificates.🐳DevOps17 toolsDocker, Nginx, Kubernetes and systemd config generators, chmod, cron, .gitignore, SSH keys, htpasswd and open-source licenses.🔣Encoding17 toolsBase64, URL, Unicode, HTML entities, number bases, Morse code, JWT, hashing and hex viewing.🧮Algorithms20 toolsSorting algorithms, graph theory, linear programming, sudoku, Markov chains, game theory, number theory, classical ciphers and fractals.🧠Productivity93 toolsMind maps, kanban, whiteboard, timers, notepad, batch rename and more productivity tools.