About Brevio
Brevio is a growing collection of 524+ free utilities โ PDF editors, image converters, developer helpers, calculators, and more โ spread across 14 categories. What makes them different is simple: every tool runs entirely inside your web browser. Your files and text are never uploaded to a server, because there is no server in the loop. Nothing leaves your device.
Who builds it
Brevio is built and maintained by Rui Barreira through RMB ventures, an independent software studio based in Porto, Portugal. It started as a personal frustration with the state of online tools: to merge two PDFs or strip metadata from a photo, you were expected to upload private documents to an unknown server, create an account, sit through ads, and trust that the files would actually be deleted afterwards. For most of these tasks, none of that is necessary. Modern browsers are powerful enough to do the work locally.
How it works
Each tool is a small application that loads in your browser and processes your data on the spot using standard web technology โ the same APIs that power the rest of the modern web. A PDF merge, for example, parses and recombines your documents in memory using a JavaScript PDF library; an image converter redraws your picture onto a canvas and re-encodes it; a JWT decoder simply base64-decodes the token in front of you. None of these operations need a network connection once the page has loaded, which is also why most Brevio tools keep working offline.
Because the processing is local, it is also fast โ there is no upload wait and no download wait, just the time it takes your own device to do the work.
Privacy by design, not by policy
The privacy claim here is structural, not a promise. A tool cannot leak a file it never receives. We do not ask you to sign in, we set no tracking cookies of our own, and analytics only ever load after you explicitly grant consent. You can read exactly what is and isnโt collected in our Privacy Policy, and see the technical guarantees on the Privacy Proof page.
How Brevio is funded
Brevio is free to use. To cover hosting and development it shows unobtrusive advertising on content pages, and accepts voluntary donations. Ads are never placed on a surface in a way that interferes with processing your files, and no user input is ever shared with advertisers โ the ad network only sees the page you are on, never what you put into a tool.