Free Online Developer Tools
for Everyday Work

Format, validate and minify JSON in one click

Encode or decode Base64 strings instantly

Encode special characters for safe URL usage

Test and debug regular expressions with live matching

Merge multiple PDF files into one. Reorder pages then download.

Split a PDF into individual pages or extract a range of pages.

Convert JPG, PNG or WebP images to a PDF file. Reorder images before converting.

Convert PDF pages to JPG or PNG images. Download all or selected pages.

Reduce PDF file size with three compression levels — low, medium, high.

Count words, characters, sentences and reading time

Convert between camelCase, snake_case, UPPER and more

Generate placeholder text for your designs and mockups

Convert between HEX, RGB, HSL and CSS color formats

Pick a color and get its HEX, RGB and HSL values

Generate strong, secure passwords with custom rules

Generate v4 UUIDs for your projects and databases

Write Markdown and see the live HTML preview side by side

Convert length, weight, temperature and more