buncha.tools
buncha/code & dev/jsfmt

JavaScript Formatter

Paste any messy JavaScript, TypeScript, or JSON; get it cleanly formatted by Prettier. Tab size, line width, quote style, semicolons, and trailing commas are all configurable. Runs entirely in your browser — nothing uploads.
Language
Input
Formatting runs in your browser via Prettier. Code never uploads.

Pairs well with

Base64 Encoder / Decoder
UTF-8-safe Base64 encode and decode. Handles emoji…
Binary Converter
Convert text to binary and binary to text.
CSS Background Pattern Generator
Build tileable backgrounds with pure CSS gradients…
CSS Checkbox & Switch Generator
Pure-CSS checkbox and toggle-switch styles that ov…

About JavaScript Formatter

Prettier-powered JavaScript / TypeScript / JSON formatter. Configurable indent, line width, quote style, semicolons, and trailing commas. Runs in your browser.

Everything happens on your device. Close the tab and it's gone.
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Built browser-first. Run by one developer.
Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.
386
Free tools
Across 14 categories
27
AI tools
Powered by Claude API
Files never uploadNo tracking pixelsNo sign-up neededWorks in any modern browser
The handful of AI tools (paraphrase, summarise, blog, captions, etc.) send your prompt text to Anthropic's Claude API to do the work. Files, images, PDFs and video never leave your device. Pick the tools that fit your privacy comfort.