Free online tools that run in your browser
Convert, compress, count and calculate — every tool works entirely on your device. No uploads, no sign-up, no limits.
Image tools
View all → Image Compressor Upload forms love to demand "under 1 MB" and never tell you how to get there. Image Image Resizer Every platform wants its own pixel size: avatars at 400, banners at 1920, thumbnails at 320. Image HEIC to JPG Converter iPhone and recent Android phones shoot in HEIC by default: half the storage, but a format that Windows viewers, old Macs, online forms and many apps still choke on. Image Image Cropper Crop product photos, avatars, passport-style headshots or screenshots down to exactly the region that matters. Image Favicon Generator A proper favicon set used to mean a checklist: .ico for browsers, 180 for apple-touch, 192 and 512 for PWA installs, a manifest to tie it together, and the right link tags. Image Color Palette Extractor Every photograph, screenshot and illustration already contains a working palette — you just need to pull it out. Image
PDF tools
View all → Merge PDF Combining PDF files usually means emailing your documents to a conversion server and hoping they are deleted afterwards. PDF Split PDF A 200-page PDF is useless when you only need to send back pages 12 to 18. PDF Compress PDF Scanned contracts, photocopied certificates and camera-shot documents routinely weigh tens of megabytes and bounce off email attachment limits. PDF JPG to PDF Sending twenty separate photos to a printer, an HR portal or a government form almost never works — they want one PDF. PDF PDF to JPG Lots of systems accept images but not PDFs: chat apps that compress documents into unreadability, forms that only take JPG uploads, slides that need a quick preview image. PDF Rotate PDF Scanners and phone cameras love to hand you sideways or upside-down pages, and many PDF readers still make fixing them surprisingly awkward. PDF
Text & Dev tools
View all → Word Counter This free online word counter gives you instant, accurate text statistics as you type — no signup, no limits, no waiting. Text & Dev JSON Formatter This free online JSON formatter turns cramped, single-line JSON into readable, properly indented text the moment you paste it. Text & Dev Text Diff This free online text diff tool compares two pieces of text and shows exactly what was added, removed and kept — instantly, as you paste. Text & Dev Case Converter This free case converter turns one piece of text into seven letter-case styles at once — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case — so you never convert twice. Text & Dev Remove Duplicate Lines This free duplicate line remover cleans any list in one paste: keyword exports, log files, email lists, CSV columns, code imports — every repeated line is dropped and only the first occurrence is kept, in its original order. Text & Dev Password Generator This free password generator creates random passwords right in your browser using crypto.getRandomValues(), the cryptographic random source of your own operating system, with rejection sampling to remove modulo bias — the same construction cryptographers recommend, not a Math.random() shortcut. Text & Dev
Utility tools
View all → Percentage Calculator This free percentage calculator answers the three questions people actually ask about percentages, all in one place and all as you type. Utility Date Calculator This free date calculator covers the two date questions that come up constantly: how far apart are two dates, and what date is N days from now? Utility QR Code Generator This free QR code generator turns any text, URL, Wi-Fi note or contact line into a crisp, scannable static QR code in seconds — and everything happens inside your browser. Utility Celsius to Fahrenheit This free Celsius to Fahrenheit converter translates weather forecasts, oven dials, fever readings and thermostat settings between the two temperature scales people actually argue about. Utility UUID Generator This free UUID generator produces random version-4 UUIDs in bulk, right in your browser. Utility Online Stopwatch This free online stopwatch measures elapsed time with a big, easy-to-read display accurate to one hundredth of a second (10 ms). Utility
100% client-side
Every tool runs entirely in your browser — no server is ever involved in processing.
No uploads
Files and text never leave your device, so private data stays private.
Free & unlimited
No accounts, no quotas, no watermarks — just open a tool and use it.