100% Free

All Tools

Free, browser-based utilities - no installation, no account, no cost. New tools added regularly.

Color

Color Converter

Convert between HEX, RGB, HSL, HWB, CMYK, NCol, and OKLCH.

Color Picker

Pick, customize and get instant format conversions.

Contrast Checker

Check WCAG AA / AAA contrast ratios between two colors.

Batch Contrast Checker

Paste up to 20 colors and check all contrast combinations at once.

Markdown Editor

Write and preview Markdown live in your browser.

JSON Formatter

Format, validate, and prettify JSON with syntax highlighting.

Soon

Base64 Encoder / Decoder

Encode or decode Base64 strings and files instantly.

Soon

HEIC to PNG Converter

Convert iPhone HEIC photos to PNG or JPEG in your browser.

Soon