About UseItFast

UseItFast is a collection of free online tools built to be fast, private, and dead simple to use. Every tool here runs entirely inside your web browser — your files are never uploaded to any server.

Who runs this site

UseItFast is built and maintained by Zan Wang, an independent developer who got tired of tool sites that force signups, bombard you with ads, or quietly upload your files to unknown servers. The goal is simple: tools that do one job well, keep your data on your device, and don't get in your way.

What you'll find here

• Image tools — convert formats, compress, resize, batch process.
• File converters— handle formats that operating systems don't open by default (like HEIC on Windows).
• Developer utilities — formatters, converters, and generators for everyday coding tasks.

Our principles

• Privacy by default.Processing happens locally in your browser. We don't store your files.
• No signup, no install. Open a page, use the tool, move on.
• Free to use. The site is supported by ads, not paywalls.

Have a question or a tool you'd like to see? Get in touch.