About DevUtils

A free suite of developer utilities that run entirely in your browser. No accounts, no ads, no server-side tool processing.

What is DevUtils?

DevUtils is a collection of 20+ free online developer tools built to help programmers, designers, and digital creators format, convert, encode, hash, and inspect data without leaving the browser tab. Every tool is designed to be lightweight, fast, and usable without reading a manual.

The project exists because most developer utilities on the web either require an account, bombard you with ads, or quietly send your data to remote servers. DevUtils was built as a clean alternative: open the page, paste your data, and get results immediately.

Privacy First: Nothing Leaves Your Machine

All tool processing is performed client-side with native JavaScript APIs. This means your JSON, Base64 strings, passwords, and file contents never touch our servers. There is no backend database for tool data. Optional Google Analytics is used only after consent for aggregate traffic measurement, with advertising storage and personalization disabled.

Read the Privacy & Cookies page for the full details.

Popular Tools

JSON FormatterBase64 Encoder / DecoderUUID GeneratorJWT DecoderHash GeneratorPassword GeneratorColor ConverterMarkdown Previewer

Supported Formats & Standards

DevUtils supports widely-used web and developer standards: JSON (RFC 8259), Base64 (RFC 4648), JWT (RFC 7519), UUID v4 (RFC 4122), URL Encoding (RFC 3986), Markdown (CommonMark), HTML Entities, Unix Timestamps, CSS, CRON expressions, Regular Expressions (ECMAScript), and YAML / JSON bidirectional conversion.

Open & Free Forever

The site is free to use and will remain so. Hosting costs are covered by community support. If you find DevUtils useful and want to help keep it running, you can support the project on Ko-fi.