A Box of Tools
A comprehensive suite of privacy-focused file, image, video, document, audio, and text utilities that operate entirely on your local machine using browser-based processing. Because all operations are executed client-side via JavaScript and web APIs, your files, documents, and credentials never leave your device. The platform offers image compression and conversion, video editing and extraction, PDF manipulation, audio trimming, data format conversion, and cryptographic hashing tools that work offline and ensure complete data confidentiality.
Checked on Oct 19, 2026.
Alternative resources
3STF Tools
A growing collection of free, client-side developer, text, and productivity tools that run entirely in your browser with zero data tracking.
Nutilz
A comprehensive web collection of over 470 free, client-side developer, PDF, image, text, and calculator utilities requiring no sign-up.
ToolKit
Collection of browser-based utilities including password generators, text tools, color palettes, and JSON formatters.