/ 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.
• Text boxes in the tools are marked so that Chrome, Edge and Firefox do not save what you type for restoring the tab later. Spell checking is turned off, because some browsers check spelling on an online service. A file picker is cleared as soon as you choose a file, so the file’s folder is not saved with the tab. The privacy policy lists what your browser may still keep.
• The QR code scanner can optionally use your camera; the video stream is decoded locally by jsQR. All decoding runs in your browser.

Your browser enforces it

Every page tells your browser what it may do, and the browser holds the page to it. The usual ways a page connects to other servers are blocked. Only the site’s own scripts may run: each page lists the exact inline scripts it was built with, so anything added later is refused. In current browsers, Trusted Types also stop code from writing raw markup into the page, and a script that tries to move the tab to another site is stopped. A few ways out remain open to a malicious script, such as a new tab opened when you next click; the technical guide lists them. The site’s own code uses none of them.

What your downloads contain

Downloads are created in your browser and handed to it through a temporary link, so the file itself is not recorded in your browser’s download history. The PDF tools write only what the document still uses, so removed pages and earlier versions of an edited file are not hidden in the output. Tools that build a new PDF, such as merge, split and delete pages, leave its document properties (title, author and the like) empty; tools that change a PDF in place, such as rotate and watermark, keep them. By default, Crop PDF turns each cropped page into an image of the area you kept, so nothing outside it remains; if you choose to keep the text selectable, the cut-off area stays in the file. Wherever a tool keeps the page content as it is, comments, form values, attachments and content in hidden layers stay in the file. Image tools that re-encode your picture drop its camera metadata, such as GPS location. Image to PDF removes it as well, and Image to Base64 removes it unless you choose to keep it, or tells you when it cannot.

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 sent to our servers. 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.

Contact and corrections

inyourbrowser.com is an independent project operated from Sweden. Questions, bug reports and error reports go to contact. The corrections policy explains what happens after you report a mistake.

Online since May 16, 2026 · Last reviewed September 28, 2026 · Last updated September 30, 2026.