Tools that respect your privacy

Most online tools send your data to a server — even when there's no good reason to. A password generator, a 2FA code viewer, a formatter: none of these need network access to work. We built Fbuff to prove that useful tools can be small, fast, and completely private.

Every tool on Fbuff is designed to work offline once loaded. Your secrets, passwords, and inputs never leave your browser tab.

Fbuff follows a set of simple rules for every tool we ship:

• Client-first — core logic runs in the browser. No backend calls for sensitive operations.
• Minimal — clean UI, no ads, no popups, no cookie banners unless legally required.
• Fast — tools load instantly and work on low-end devices.
• Accessible — keyboard navigable, screen-reader friendly, light and dark mode.
• Honest — if a feature does touch a network, we say so clearly.

Fbuff is built with modern open-source tools and deployed as a fully static site on Cloudflare Pages — meaning there are no server-side processes running on your behalf.

The project is open source. If you want to inspect how a tool works, suggest a new one, or report a bug, the repository is the right place to start.