About DivXpress
DivXpress is a free, independent video converter and compressor that runs entirely inside your web browser, converting and compressing MP4, MOV, WebM, GIF and MP3 files on your own device instead of uploading them to a server.
The reason it works that way is a single objection to how online converters normally behave. Most of them ask you to hand your file to a stranger's server, wait in a queue, and trust that it is deleted afterwards. We thought that was backwards for a job your own computer is perfectly capable of doing. So the conversion engine, a WebAssembly build of the open-source FFmpeg project, runs inside your browser. Your video is read from your device, processed on your device, and handed back on your device. There is no server that ever sees it, which means there is nothing to store, mine, or leak.
What the site covers
Two things, and they support each other. The first is a set of tools: convert between MP4, MOV, WebM and GIF, compress a video to a smaller size, and pull the audio out as an MP3. The second is a small library of guides explaining the settings those tools expose, so that choosing a quality level or a format is an informed decision rather than a guess.
What it deliberately does not cover
DivXpress is not an editor. There is no timeline, no colour grading, no titles, no multi-track audio mixing, and no plan to add them. It does not review or rank other software, because taking that role while running a competing tool would put us in an obvious conflict. It does not cover streaming setups, camera buying advice, or the professional post-production workflow, all of which are well served elsewhere by people who work in them daily.
It also has real technical limits, which are set out honestly on thestandards page rather than buried: in-browser conversion is slower than a native application, some unusual codecs will not decode, and very large files depend on your device's memory.
Who it is for
Anyone who needs a quick, one-off conversion and does not want to install anything: shrinking a clip to fit an upload limit, converting an iPhone recording so a colleague on Windows can open it, turning a few seconds into a GIF, or lifting the audio from a talk. It is especially for people converting footage they would rather not upload at all, which covers most video of family, homes, children, and confidential work. If you convert video all day for a living, a dedicated desktop application will serve you better, and we would rather say so than pretend otherwise.
What it costs to run
Almost nothing, and it comes out of pocket: a domain and static hosting are the whole bill. That is why the tools are free, with no account, no paid tier, and no ad unit, interstitial or upsell anywhere on the site. If any of that ever changes, thestandards page and theprivacy page will say so before it applies to you.
Who stands behind it
Everything is published under one editorial byline, the DivXpress team, which is a working name for the site rather than a person. There are no invented credentials here and no fabricated biography. What we offer instead is transparency about sourcing: thestandards page explains where the encoding behaviour comes from, what the converter cannot do, what the dates on a guide mean, and how corrections are handled.
Questions, corrections, and reports of a file that would not convert are welcome at[email protected], or through thecontact page.
Built on
The parts of this that are not ours
Almost nothing described above was invented here. The encoding is FFmpeg, the way it runs in a tab is a browser standard, and both are documented in public by the people who actually build them.
- FFmpeg documentation. The manual for the encoder DivXpress runs inside your browser.
- ffmpeg.wasm. The open-source project that compiles FFmpeg to run inside a browser tab.
- MDN Web Docs: WebAssembly. The browser technology that lets compiled code encode video at usable speed on your own device.