Overview
Fast, 100% private developer & designer tools right in your browser. JSON Formatter, JWT, Eyedropper, Crypto, and 50+ utilities.
RetroBox is a privacy-first browser extension designed for web developers, designers, and software engineers. It provides quick access to client-side utilities directly within your browser popup and Chrome side panel. All processing runs 100% locally on your device using browser APIs, with zero data transmitted to remote servers. Key Features: - Format, validate, and minify JSON data with custom indentation. - Decode JWT tokens and inspect headers, payload claims, and expiration dates. - Test regular expressions live with instant match highlighting. - Generate secure cryptographic passwords and UUID v4 identifiers. - Encode and decode text to Base64 or URL formats. - Convert Unix epoch timestamps to readable date formats. - Convert cURL requests to JavaScript fetch code. - Quick text case conversion for common programming conventions. - Calculate SHA-256 and SHA-512 cryptographic hashes. - Includes a persistent local scratchpad for quick notes and code snippets.
Details
- Version1.0.0
- UpdatedSeptember 2, 2026
- Size268KiB
- LanguagesEnglish
- Developer
Email
gmennegaut@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site
