About ToolNest

Hi — I'm Dvir, the developer behind ToolNest. By day I'm a software development team lead at a US company, and I've spent the last 17 years working in the IT industry, from hands-on engineering to leading teams. ToolNest is where I build the small, fast utilities I always wished were a single click away — and keep my own craft sharp by owning a project end to end.

Why I built it

Over 17 years I've lost count of how many times a five-second task — generating a QR code, formatting some JSON, counting words, converting units — sent me to a site buried in pop-ups, sign-up walls and trackers. ToolNest is my answer. Every tool does one job, loads instantly, and asks nothing of you: no account, no download, no nagging. It's a living project I maintain and expand based on what people actually reach for.

Privacy first — by design, not by promise

Every tool runs entirely in your browser using JavaScript. Whatever you type or upload stays on your device it is never sent to a server, logged, or shared. That isn't a policy bolted on after the fact; it's an architectural choice. For these tools there's simply no backend touching your data, because there doesn't need to be one. You can confirm it yourself: open your browser's network tab and watch — nothing leaves the page.

Built with care

Each tool is written and tested individually rather than wrapped around a generic widget. Conversions use exact factors, calculators show their formulas and worked examples, and the whole site is built to be fast, accessible and accurate. When I find a bug or a better way to do something, I fix it — this is the kind of project I'd want to use myself.

How it stays free

ToolNest is free and will stay free. There are no ads — I cover hosting and domain costs myself. The tools will always be free, account-free, and privacy-respecting.

Get in touch

Have a tool you'd like to see, spotted a bug, or just want to say hello? Head to the contact page — I read every message, and suggestions for the next tool to build are especially welcome.