Privacy-first developer tools

Format and Validate

JSON Formatter Online

Format, validate and minify JSON locally in your browser.

YAML Formatter

Format and validate YAML text in your browser.

XML Formatter

Format and validate XML locally.

Markdown Preview

Preview Markdown and convert it to safe HTML text in your browser.

SQL Formatter

Format SQL queries for easier reading.

Time and Schedule

Unix Timestamp Converter

Convert Unix timestamps to readable dates and dates back to timestamps.

Cron Expression Parser

Parse common 5-field cron expressions and inspect each field.

Encode and Decode

Base64 Encoder and Decoder

Encode text to Base64 or decode Base64 text in your browser.

URL Encoder and Decoder

Encode URLs, decode URL components and inspect query parameters.

JWT Decoder

Decode JWT header and payload without verifying the signature.

Generators

UUID v4 Generator

Generate one or many random UUID v4 values locally.

Generate

Hash Generator

Generate common text hashes in your browser.

Generate

Text Processing

Regex Tester

Test regular expressions against text and inspect matches.

Text Diff Checker

Compare two pieces of text and highlight differences.

Text and Color

Color Converter

Convert colors from HEX to RGB and HSL.