Choose a tool

Simple browser utilities. No account, no tracking — nothing leaves your machine.

Formatting & conversion

JSON Formatter

Format, indent, and minify JSON locally in your browser.

JSON ↔ YAML

Convert JSON to YAML and back, right in your browser.

JSON ↔ CSV

Convert a JSON array to CSV and back, in your browser.

Timestamp

Convert Unix time and ISO 8601 dates in your browser.

Encoding & decoding

Base64

Encode and decode Base64 locally in your browser.

JWT Decoder

Read a JWT header, payload and expiry dates in your browser.

URL Encode

Encode and decode URL text in your browser.

HTML Entities

Encode and decode HTML entities in your browser.

Generators

UUID Generator

Generate UUID v4 and v7 identifiers in your browser.

Password Generator

Generate a random password and read its entropy in your browser.

Lorem Ipsum

Generate lorem ipsum words, sentences or paragraphs in your browser.

Token

Generate random hex or base64url tokens in your browser.

Text & comparison

Text Diff

Compare two texts side by side in your browser.

Regex Tester

Test a regular expression and read the captured groups in your browser.

Case

Rewrite a phrase as camelCase, snake_case and the other spellings.

Lines

Trim, dedupe, sort and count lines in your browser.

Numbers & systems

Bases

Convert binary, octal, decimal and hex in your browser.

Hash

Hash text with SHA-256 and SHA-512 in your browser.

Cron

Read a five-field cron expression and its next runs in your browser.

Chmod

Convert Unix permission bits between octal and symbolic form in your browser.