💻Developer Tools (27)

JSON, Base64, regex and other developer utilities.

Small utilities that save real time during development: formatting and validating JSON, encoding or decoding Base64 strings, and more tools like these are on the way. Everything runs client-side, so pasting in a snippet of code or data never sends it to a server, which matters when you're working with anything from a real project.

Markdown Previewer

Write Markdown and see a live rendered preview.

UUID Generator

Generate random UUID v4 identifiers.

Lorem Ipsum Generator

Generate placeholder Lorem Ipsum text.

Regex Tester

Test regular expressions against sample text in real time.

Hex to RGB / RGB to Hex Converter

Convert between hex color codes and RGB values, both directions.

Color Contrast Checker

Check WCAG contrast ratio between two colors for accessibility.

Color Palette Generator

Generate complementary, triadic and analogous color harmonies.

HSL to Hex / RGB Converter

Convert HSL color values to hex and RGB.

URL Encoder / Decoder

Encode or decode URL strings instantly.

JSON Formatter

Format, validate and minify JSON instantly.

Base64 Encoder / Decoder

Encode or decode Base64 text instantly.

UUID Validator

Validate a UUID and identify its version and variant.

XML Formatter

Format and indent XML with proper structure.

XML Validator

Check whether XML is well-formed.

CSV to JSON Converter

Convert CSV data into a JSON array of objects.

JSON to CSV Converter

Convert a JSON array of objects into CSV data.

SQL Formatter

Format SQL queries with readable line breaks and indentation.

JWT Decoder

Decode a JWT's header and payload.

JWT Generator

Generate a signed HS256 JWT from a JSON payload.

Hash Generator

Generate MD5, SHA-1 and SHA-256 hashes of text.

Cron Expression Generator

Build a cron expression from simple schedule fields.

Unix Timestamp Converter

Convert between a Unix timestamp and a human-readable date.

HTML Minifier

Minify HTML by removing comments and unnecessary whitespace.

HTML Beautifier

Format and indent minified or messy HTML.

CSS Minifier

Minify CSS by removing comments and unnecessary whitespace.

CSS Beautifier

Format and indent minified or messy CSS.

Bandwidth Calculator

Calculate how long a file will take to download or upload at a given connection speed.