ToolsNest tools

Free online developer tools

Format JSON, encode Base64, test regex, convert colors, count words, preview Markdown and use more everyday utilities. No sign-up, no ads, and everything runs in your browser.

Developer tools

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JSON formatterPopular

Format, validate and minify JSON in one click

Base64 encode / decode

Encode or decode Base64 strings instantly

URL encode / decode

Encode special characters for safe URL usage

Regex tester

Test and debug regular expressions with live matching

PDF tools

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PDF Merger

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

PDF Splitter

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

Image to PDF

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

PDF to Image

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

PDF Compress

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

Text tools

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Word counter

Count words, characters, sentences and reading time

Case converter

Convert between camelCase, snake_case, UPPER and more

Lorem ipsum

Generate placeholder text for your designs and mockups

Color tools

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Color converter

Convert between HEX, RGB, HSL and CSS color formats

Color picker

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

Generator tools

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Password generatorNew

Generate strong, secure passwords with custom rules

UUID generator

Generate v4 UUIDs for your projects and databases

Converter tools

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Markdown preview

Write Markdown and see the live HTML preview side by side

Unit converter

Convert length, weight, temperature and more