Free browser-based utilities — everything runs on your device, nothing is uploaded
Verify file integrity by computing SHA-1, SHA-256, or SHA-512 checksums entirely in your browser.
sha256 hash calculator · verify file integrity · checksum tool
Encode or decode text and files to/from Base64 format instantly, entirely client-side.
base64 encode · base64 decode · base64 converter
Beautify, validate, and minify JSON data. Instantly highlights syntax errors.
json formatter · json validator · json beautifier · format json online
All tools run entirely in your browser. Your files and data are never sent to any server.