# HappyFormatter

> A private, client-side code formatter and minifier running entirely in the browser without uploading code.

- Website: https://happyformatter.com/?ref=devshelf.io
- DevShelf page: https://devshelf.io/resource/happyformatter
- Pricing: Free
- Tags: No sign-up
- Categories: [Developer Utilities](https://devshelf.io/category/developer-utilities.md)
- Last checked: 2026-11-02

## About

HappyFormatter is a suite of client-side developer utilities designed for formatting, minifying, converting, decoding, hashing, and diffing code directly within the browser. By executing all workflows entirely on the local device, it ensures that sensitive code snippets and data payloads are never uploaded to an external server. It supports multiple languages and formats including JSON, JavaScript, CSS, SQL, Python, and more, providing immediate syntax validation and error highlighting.

## Alternatives

- [CoderTools](https://devshelf.io/resource/codertools.md): A comprehensive suite of browser-based developer utilities for code formatting, cryptography, data conversion, and system testing. (pricing: Free)
- [Fmtly](https://devshelf.io/resource/fmtly.md): An open source browser-based collection of developer utilities including JSON, XML, YAML, CSV and TOML formatters, validators, and encoders. (pricing: Free)
- [3STF Tools](https://devshelf.io/resource/3stf-tools.md): A growing collection of free, client-side developer, text, and productivity tools that run entirely in your browser with zero data tracking. (pricing: Freemium)

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