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Chromium is the free open-source browser project Chrome, Edge and Brave are built from, carrying the newest web-platform work months before stable Chrome, but shipping without the proprietary codecs, DRM and auto-updates they add.
Chromium is the open-source project that nearly every major browser is built from.
Google Chrome, Microsoft Edge and Brave all start here.
So do Vivaldi and Opera, each adding its own interface and services on top of the same engine.
What you download here is that shared base on its own, before any of those companies add anything to it. That is the appeal, and it is also the catch.
What Chrome Adds That Chromium Does Not Have
The differences are not cosmetic. Several of them decide whether a given website works.
| Component | In Chromium | What you notice |
|---|---|---|
| Blink engine, V8, WebGPU, Web Audio | Yes | Nothing missing - this is the same engine Chrome runs |
| AV1, VP9, WebP, AVIF, Opus, Vorbis | Yes | Royalty-free formats all work, including YouTube's AV1 streams |
| Chrome Web Store extensions | Yes | Your existing extensions install normally |
| PDF viewer | Yes | PDFium is open source and built in, so PDFs open in-browser |
| H.264 video and AAC audio | No | The single biggest cause of video that will not play, or plays silently |
| Widevine DRM | No | Netflix, Spotify, Disney+ and Prime Video refuse to play |
| Automatic updates | No | You fetch every new build yourself, including security fixes |
| Google sync, crash reporting, API keys | No | Nothing goes to Google, and nothing syncs between machines |
The Codec Gap Is the Part That Catches People Out
Chromium is compiled without the licensed decoders for H.264 and AAC. This is a patent-licensing decision rather than a technical one, and it is the reason the open-source build can be given away freely.
EXPECT THIS
H.264 and AAC still carry a very large share of the video and audio on the web. On a stock Chromium build, that content may refuse to play, or play as picture with no sound.
The silent-video symptom trips people up most. Windows and macOS can sometimes supply hardware H.264 decoding through the operating system, so the picture appears, but the AAC soundtrack alongside it has nothing to decode it.
If any of that is unfamiliar territory, the guide to what a codec actually is explains the licensing split in plain terms. To find out which codecs a specific file or stream needs, the browser-based Codec Finder will name them.
None of this affects the royalty-free side. AV1, VP9, WebP, AVIF and Opus are all present and work exactly as they do in Chrome, which covers a growing share of YouTube and modern streaming.
These Are Snapshots, Not Releases
Chromium builds do not auto-update and carry no debugging symbols. The project describes them as made available on a best-effort basis, built from arbitrary revisions that do not necessarily correspond to any Chrome release.
In practice that means you are running code that has not been through the release testing a stable Chrome build gets. New builds appear almost daily.
Security implication. No auto-update means no automatic security patches, so a Chromium install you forget about is a Chromium install going stale. Check for a new build deliberately, or use a browser that updates itself.
Which Build Do You Actually Need
The download page carries Windows, macOS and Android builds, in installer and portable forms.
- Windows. Take mini_installer.exe for a normal install, or chrome-win.zip for a portable copy that leaves the rest of the system alone.
- macOS 12 or later. Separate Intel and Apple Silicon builds are listed, both as chrome-mac.zip.
- Android 10.0 or later. Shipped as chrome-android.zip.
If what you actually need is browser automation rather than browsing, stop here. ChromeDriver is the WebDriver server that Selenium and Puppeteer talk to, and it has to match your Chrome version rather than a Chromium snapshot.
If you want a browser you can carry on a USB stick without the codec gaps, Google Chrome Portable is the better fit. And if the appeal was simply seeing features early, Google Chrome Dev runs roughly the same milestone as Chromium while keeping the codecs, the DRM and the auto-updates.
If You Wanted Chrome Without Google
That is the usual reason people land here, and Chromium is a blunt instrument for it. A finished browser built on the same engine gets you the privacy without the missing pieces.
Brave Browser blocks ads and trackers by default. Vivaldi Browser goes furthest on customisation, with tab stacking and split views.
Opera GX adds CPU and RAM limiters aimed at gamers, and Comet Browser builds Perplexity's AI assistant into the same Chromium base.
Off the Chromium engine entirely, Mozilla Firefox is the main independent alternative, and the only mainstream browser not running Google's engine.
Floorp and Zen Browser are both customisable forks of Firefox, if the default is too plain for you.
For anonymity rather than privacy, Tor Browser routes traffic through onion relays, which is a different job and a much slower one.
Keeping the Traces Down
Chromium sends nothing to Google, but it still writes the usual cache, cookie and history files locally. Privacy Eraser Free and BleachBit both clear those across every browser installed on the machine.
Developers testing playback behaviour across builds will usually want FFmpeg alongside, to confirm what a file actually contains before blaming the browser.
Quick questions
Is Chromium free?
Yes, entirely, and it always has been. It is an open-source project with no paid tier, no licence key and no bundled extras.
Why will some videos not play, or play with no sound?
Chromium is built without the licensed H.264 and AAC decoders. Picture without sound usually means the system supplied hardware H.264 decoding while the AAC audio track had nothing to decode it.
Can I watch Netflix or Spotify in Chromium?
No. Those services need the Widevine DRM module, which is proprietary and not part of an open-source build, so protected content will not start.
Is Chromium safer than Chrome?
It sends less to Google, which is a genuine privacy gain. It also never updates itself, so on security it can end up considerably worse unless you fetch new builds by hand.
Do my Chrome extensions work?
Yes. Chromium uses the same extension system, so anything from the Chrome Web Store installs normally.
Is this the same thing as ChromeDriver?
No. ChromeDriver is a small automation server for Selenium and Puppeteer, and its version has to match the browser it drives.
The full web browsers category lists every alternative worth weighing before you settle on one.
Download Chromium 154.0.8032.0 and see how it handles your usual sites, or tell us how you got on if you have used it before.
