/ ABOUT

How it works

inyourbrowser.com is a collection of free tools that do their work right inside your web browser. The files you open and the text you paste are processed on your own device. Our servers are not involved, there is nothing to sign up for, and there are no ads.

Processing happens on your device

Each tool is a JavaScript program that uses browser-native APIs including the Canvas API, the File API, the Web Crypto API, and Web Workers. When you compress an image, hash a file, or diff two texts, the computation happens in your browser, not on our servers.

No accounts required

• No sign-up or login required for any tool.
• No analytics that record which files you open or what you do with them.
• Your processed files are discarded from memory when you close the tab.
• The QR code scanner can optionally use your camera; the video stream is decoded locally by jsQR. All decoding runs in your browser.

Open to inspect

The tools are standard web code: HTML, CSS, and TypeScript compiled to JavaScript. If you want to verify that your file content is processed locally, open DevTools, go to the Network tab, and watch what happens when you process a file. No file data is transmitted. For step-by-step instructions including the Content Security Policy check, see /verify-local.

How we keep tools accurate

Each calculator implements a published, well-established formula, and the source is named in that tool’s technical specification so you can check the math yourself. For how we choose sources, verify results, and handle corrections, see our editorial standards.

What we do collect

Standard web server access logs (IP address, URL, timestamp, user-agent) may be retained briefly by the hosting provider for operational purposes. We do not use them to profile individuals. No file contents are ever logged, because your files never reach our servers.

Online since May 16, 2026 · Last reviewed May 26, 2026.