All tools

Format, validate and minify JSON instantly.

Compare two JSON documents structurally.

Encode and decode Base64 without mangling Unicode.

Inspect a JSON Web Token’s header and claims.

Generate UUIDs in bulk, locally.

Test regular expressions against real text.

Convert between Unix timestamps and human dates.

Format, validate and minify JSON instantly.

Strip whitespace from JSON and see how much you saved.

Compare two JSON documents structurally.

Convert JSON into readable YAML.

Convert YAML into formatted JSON.

Turn a JSON array into a spreadsheet-ready CSV.

Turn CSV rows into a JSON array.

Encode and decode Base64 without mangling Unicode.

Percent-encode URLs and query strings correctly.

Inspect a JSON Web Token’s header and claims.

Generate UUIDs in bulk, locally.

Build random strings from exactly the characters you want.

Strong passwords generated in your browser.

Turn text or a URL into a downloadable QR code.

Test regular expressions against real text.

Compare two blocks of text line by line.

Convert text between ten naming conventions.

Count words, characters, lines and reading time.

Convert between Unix timestamps and human dates.

Build and read cron schedules with confidence.