Free Online Tools That Run in Your Browser

Password generation, random pickers, countdowns, unit and byte conversion, timers and quick lookups — all in the browser, nothing sent to a server.

Compress, crop, resize, rotate, watermark and convert images to WebP or Base64; EXIF orientation is respected and files never leave the browser.

Count words, change case, diff two texts, deduplicate lines, sort, join or rewrap — pasted text stays local and is never uploaded.

Percentages, discounts, loans, unit and base conversion with the working shown; results are computed in the browser so you can check every step.

Convert time zones, compare dates, calculate date differences and inspect Unix timestamps without installing anything.

Build gradients, shadows, color palettes and CSS snippets, then copy the generated code straight into your stylesheet.

Merge, split and compress PDF files locally; page ranges are listed before you export, and no document is uploaded.

Inspect HTTP status codes, parse URLs and look up IP details; the one networked tool states exactly which service it contacts.

Convert CSV, JSON, YAML, XML and Markdown in both directions — useful for moving API samples, config files and spreadsheet exports.

Beautify or minify HTML, CSS, JavaScript, JSON, SQL, XML and YAML, with error positions instead of silently broken output.

Encode and decode Base64, hex, URL and Morse, plus MD5/SHA hashing and JWT signing; keys and input stay on your device.

Generate cron expressions, UUIDs, NanoIDs, ULIDs and JWTs, test regular expressions, and build robots.txt or sitemap.xml without leaving the browser.