About ToolFeather

ToolFeather is a collection of 30 small, fast, genuinely private utilities — calculators, text and SEO helpers, developer tools, and image tools — that run entirely in your web browser.

The idea is simple. Everyday tools like a percentage calculator, a JSON formatter, or an image compressor should not require an account, should not track you, and should not send your data anywhere. On ToolFeather, they don't. Every tool processes your input locally on your own device, so your numbers, text, and files never touch a server.

What makes us different

No accounts. No tracking scripts or analytics. No cookies beyond an optional dark-mode preference. No uploads — your files stay on your machine. And no cost. We plan to display unobtrusive ads in the future to keep the lights on, and when we do we will say so clearly and link to the ad provider's privacy policy; we will never add trackers that follow you around the web.

How it's built

The whole site is static HTML, CSS, and vanilla JavaScript. There is no backend to leak data because there is no backend at all. You can browse all our tools from the homepage or read practical guides on our blog.