Format, validate, convert, and encode data — essential utilities for developers, all client-side.
Format, validate, and minify JSON in your browser — paste your JSON or drop a .json file to load it instantly. Errors are flagged by line number in real time, so you find mistakes without counting brackets. Sort keys, remove nulls, escape strings, convert to YAML or CSV, and download the result. Free, no sign-up, nothing uploaded.
Open Tool
Encode plain text or binary files to Base64 and decode Base64 strings back to text or files — entirely in your browser. Supports URL-safe encoding, MIME line breaks, file upload, drag and drop, and one-click copy as Data URI. No upload, no account, no limits.
