Bare Browser
Shaped by the community
Extensions. Privacy. Freedom
barebrowser.org
Bare is a de-Googled Chromium build for Android, designed to give you more privacy, control and
freedom on the web. It strips Google tracking, telemetry and AI integration while keeping
powerful features like browser extensions and uBlock Origin. Bare also adds background video
playback, the ability to save media from sites that normally block it, support for choosing your
preferred download manager, and much more.
It is a patch series rather than a fork: 99 patches against one pinned revision of Chromium
Desktop Android, so what this repository holds is exactly the difference between stock Chromium
and Bare, and nothing else.
Built and used on a Pixel 10 Pro XL. Not affiliated with Google or the Chromium project.
- Base: Chromium
153.0.7999.0 (commit 945b5115)
- Target:
is_desktop_android = true, target_cpu = "arm64"
- Version:
1.0.0-alpha.2, versionCode 801000035 (arm64) / 801000030 (32-bit arm)
- Size: 99 patches, 6262 insertions across 239 files
What you get
- Real browser extensions. Bitwarden, Dark Reader, uBlock Origin: the desktop ones, on your
phone. Pin the ones you use to the toolbar.
- uBlock Origin, already installed. The full version,
not Lite, because Bare keeps Manifest V2 working. Shipped exactly as its author publishes
it. Remove it like anything else if you would rather not have it.
- No telemetry, no AI, no sign-in prompts. DuckDuckGo is the default from first launch. Two
things still reach a server on their own, and both are named in
Network behaviour rather than glossed over.
- Save what a page is playing. Long press a video or an audio player and Bare offers you the
file, including on sites that stream in pieces and normally offer nothing at all.
- Video keeps playing in the background. Lock the phone or switch apps and the audio carries
on, for sites that support it.
- Your download manager, if you want one. Hand downloads to 1DM or similar instead of the
browser, or leave it off and keep them in Bare.
- Links open in the browser, not in apps. A Reddit or YouTube result stays where you are.
Phone numbers and email links still open the right app.
- Video that behaves. H.264 and AAC are included. Fullscreen follows your rotation lock
instead of forcing landscape, and clears the camera cutout instead of sitting beside it.
- Dark stays dark. No white flash while a page loads on a dark theme. There is also an
optional setting to have Bare darken light sites itself.
- Add your own search engine. Chromium ships the add-engine screen on Android but leaves it
switched off. It is on here, under Settings, Search engine, Manage search engines.
Screenshots
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Support the project
Bare is one person and one phone. There is no company behind it, nothing in the browser sells
you anything, and there is nothing to upsell you to later, which is rather the point of it.
If it is useful to you, you can buy me a coffee. Entirely optional. It buys build hours and a
second device to test on, and it changes nothing about the browser either way.
Why
Chromium's Desktop Android build supports real browser extensions, which mobile Chrome does
not. That makes it a genuinely better browser to live in, but it still ships Google's AI
stack, phones home on a schedule, and hands your links to other apps. Bare fixes that as a
patch series rather than a fork, so every change stays readable and reviewable.
What the patches do
Ninety-one patches against one pinned Chromium revision: crash fixes, the extensions toolbar on
phone layouts, every Google callback and AI surface removed, and the features Bare adds on top.
The full list, patch by patch, is in docs/patches.md along with what is
removed by build flag instead of by patch, and what is deliberately kept.
Network behaviour
Measured on a Pixel 3 running Android 12 and an Android 17 emulator, by watching the sockets
opened under Bare's own uid on a wiped profile. What follows is what was actually observed, not
what was intended.
On a second and later start, with an established profile, one host is contacted without being
asked: update.googleapis.com. That is Chromium's component updater. It is kept deliberately,
because the components left registered are the ones that carry security or web compatibility:
| Component |
Why it stays |
| CRLSet |
certificate revocation |
| PKIMetadata |
Certificate Transparency |
| SSLErrorAssistant |
quality of the TLS interstitial |
| FileTypePolicies |
download danger classification |
| OriginTrials |
web compatibility |
| Widevine |
DRM playback |
| SafetyTips, CrowdDeny |
lookalike-domain and abusive-notification lists, applied locally |
Registration tells Google an install exists, along with a component id, a version, an install
date and a cohort. Twelve other components were dropped in patch 0085 for buying nothing here:
the Privacy Sandbox set, Google's omnibox suggestion model, the optimization-hints feed, shopping
and checkout heuristics, on-device AI history strings, and two Safe Browsing lists that nothing
can consult. Three more, ActorSafetyLists, Indigo and CaptchaProvider, are still registered
because their purpose is not clear enough in the tree to remove them confidently.
On the first run of a fresh profile there is more, and almost all of it is uBlock Origin
fetching the filter lists it ships enabled, from the list maintainers and their CDNs rather than
from Google. That happens once and then on the extension's own schedule.
The update check contacts GitHub, and only after the welcome screen has been completed and an
update preference stored. It is at most one request a day, to a public release feed, sending
User-Agent: Bare/<version> and nothing else: no identifier, no cookies, no version in the
request. Choosing manual means nothing leaves the device until the Check for updates row is
tapped.
What no longer happens, each verified by re-running the same capture:
- No Firebase or InstanceID registration. A fresh profile previously fetched two FCM tokens for
Chromium's cloud-policy invalidation projects and kept them in shared preferences as durable
identifiers. Patches 0081 and 0086 removed both consumers; the token files are no longer
created at all.
- No lookup against
accounts.google.com, from the omnibox or at startup. Typing in the address
bar used to reach GAIA ListAccounts to decide whether to personalise suggestions. Separately, a
fresh profile used to POST to ListAccounts about a tenth of a second into every cold start,
before the welcome screen had been answered. Neither the omnibox nor the account reconcilor was
behind the startup one: two services asked for the cookie jar while the profile was still being
built, both only to report metrics, and reading the cookie jar fetched it from Google whenever
the cached answer was stale. Patch 0093 stops the read from reaching the network, so the answer
now comes from the cache. Visiting Google sites and signing in to them is unaffected.
- No Safe Browsing traffic. There was never any: see below.
Traffic from Android itself and from Google Play Services is separate from all of this and is not
affected by anything Bare does.
Safe Browsing does not work in this build, and no longer claims to. Chromium Android performs
lookups through a handler that Google injects in its own build and that no public build has. The
settings, the Safety Hub module and the promotional cards all described protection that never
ran, so patch 0080 removed them. Bare shows no phishing or malware interstitial. Treat unknown
links with the caution you would give a browser with no such feature, because that is what this
is.
Requirements
- Docker, with at least 32 GB allocated to the VM. At 16 GB a full build is
reliably OOM-killed partway through.
- ~100 GB free disk. The Chromium checkout alone is ~50 GB.
- An arm64 Android device for testing.
Builds run in an x86-64 Ubuntu 22.04 container. On Apple Silicon this means Rosetta
emulation, and a full build takes hours.
Build it yourself
Everything runs in the container. The Chromium checkout stays in its volume, because building
from a macOS bind mount is slow and unreliable; only small files cross to the host, through
exchange/, which is the one directory shared with the container.
1. Start the container.
./builder.sh build
./builder.sh start
2. Put what the build needs where the container can see it.
cp -R patches exchange/
cp third_party/ublock_origin/uBlockOrigin-1.73.0.crx exchange/
tools/version.py gn arm64 > exchange/version-args.gn
3. Fetch Chromium. Inside the container (./builder.sh shell). depot_tools is on the PATH
but not installed, so clone it first. This part is Chromium's own procedure rather than
anything specific to Bare. See the upstream Android build
instructions
if a step needs explaining. Expect hours and about 50 GB.
git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git ~/depot_tools
mkdir -p /work/chromium && cd /work/chromium
fetch --nohooks android
cd src
git checkout 945b5115
gclient sync -D --force --reset
./build/install-build-deps.sh --android
4. Apply the series, and drop in the extension. uBlock Origin is kept out of the patches
because a 4 MB signed binary as base64 would be unreviewable, so it is copied in separately.
Without it the build fails at packaging.
git am /exchange/patches/*.patch
mkdir -p chrome/browser/resources/bare
cp /exchange/uBlockOrigin-1.73.0.crx chrome/browser/resources/bare/ublock_origin.crx
5. Configure. This is the complete configuration the published release was built with,
nothing omitted:
target_os = "android"
target_cpu = "arm64"
is_desktop_android = true
is_official_build = true
is_debug = false
is_java_debug = false
is_component_build = false
dcheck_always_on = false
android_static_analysis = "off"
symbol_level = 0
blink_symbol_level = 0
v8_symbol_level = 0
use_remoteexec = false
use_reclient = false
proprietary_codecs = true
ffmpeg_branding = "Chrome"
use_mlkit_for_aicore = false
enable_glic_internal_resources = false
enable_reporting = false
enable_service_discovery = false
enable_mdns = false
enable_arcore = false
enable_cardboard = false
enable_openxr = false
chrome_public_manifest_package = "org.barebrowser"
android_override_version_code = "801000035"
android_override_version_name = "1.0.0-alpha.2"
The last two lines are what tools/version.py gn arm64 emits, and they matter: they are written into
the manifest, so a build without them will not match the release.
The 32-bit build differs in exactly three lines: target_cpu = "arm", the version code
801000020 that tools/version.py gn arm emits, and clang_use_default_sample_profile = false,
which stops GN demanding an AFDO profile this checkout never syncs.
mkdir -p out/Bare
$EDITOR out/Bare/args.gn # paste the block above
gn gen out/Bare
autoninja -C out/Bare chrome_public_apk
6. Compare. Your APK will not be byte-identical to the published one, because that one
carries a signature only its key can produce. Everything else should match:
tools/apk-content-hash.py out/Bare/apks/ChromePublic.apk Bare-1.0.0-alpha.1.apk
See BUILDING.md for the rest of the workflow, including versioning and how
releases are signed.
Verifying a build
Three questions, and they have different answers.
Is this the file that was published? Compare its SHA-256 against the one on the release page.
That catches a truncated or tampered download and nothing else: the hash is published by the same
person as the file, so on its own it proves nothing about where the file came from.
Is it genuinely Bare? Check who signed it. Nothing signed by any other key is Bare.
apksigner verify --print-certs Bare-1.0.0-alpha.1.apk
SHA-256 ae:2a:0e:7f:b7:a1:32:ec:51:7d:26:a8:e7:c8:3d:27
5e:83:74:7b:0a:77:7d:4a:42:22:5b:1d:34:32:71:a0
subject CN=Bare Browser, O=Bare Browser, OU=Release
key RSA 4096
Releases before v1.0.0-alpha.1 were signed with Chromium's debug key, which is checked into
Chromium's tree and therefore public. Anyone can build an APK that installs as an update over one
of those. If you are running a Chromium Extend build, uninstall it rather than updating; a Bare
release cannot replace it in place anyway, because the signing identity deliberately changed.
Can you rebuild it yourself? Yes, and that is the only one of the three that proves where a
binary came from. The signature is deliberately not reproducible, since nobody but the key holder
can produce it, but everything else is. Follow Build it yourself exactly,
including the version arguments, then compare:
tools/apk-content-hash.py out/Bare/apks/ChromePublic.apk Bare-1.0.0-alpha.1.apk
It hashes every entry except the signature, so two builds of the same source agree whoever signed
them. What has been measured, and what has not.
Known limitations
- Extension popups can be cropped. Extensions auto-size their popup to content and may
request a width wider than a phone screen.
kMaxSize in
chrome/browser/ui/android/extensions/extension_action_popup_contents.cc is hardcoded to
800dp. Two attempts to bound it failed; the second stopped popups rendering entirely, so
both were reverted. Needs instrumenting rather than guessing.
- The omnibox is squeezed when several extensions are pinned.
ToolbarPhone has none of
the ToolbarWidthConsumer negotiation ToolbarTablet uses. Unpinning all but one extension
works around it.
- Patch 0005 is blunt. All
http(s) navigations stay in the browser. Some OAuth flows and
deep links legitimately expect an app handoff and will no longer get one. Explicit schemes
(intent://, tel:, mailto:, sms:) are untouched.
- The DuckDuckGo default only applies to new profiles. Patch 0014 seeds the default at
first run. An existing profile has
kDefaultSearchProviderData persisted and
DefaultSearchManager prefers it, so upgrading over an older install keeps Google until you
change it in Settings → Search engine.
- The New Tab Page still has Discover. The Google logo, the promo cards and the AI Mode
button are gone; Discover remains.
- External downloads lose your sign-in. With "Use an external download manager" on, a file
that requires you to be signed in will fail in the other app: the interception point in
ChromeDownloadManagerDelegate carries no cookie. Passing credentials needs a different
interception layer, not an extra argument. The setting's own summary says so.
- Passkeys work, but only through a third-party password manager, and only after you trust
Bare once. Two different APIs are involved. Google's own path,
Fido.FIDO2_PRIVILEGED_API, is restricted to Google-signed browsers, so a self-built
Chromium is refused with ApiException: 17; passkeys held in Google Password Manager are
therefore out of reach, and no patch here can change that. Android's Credential Manager is a
separate path and it does reach third-party providers such as Bitwarden, 1Password and Proton
Pass. Those providers only complete a passkey for a browser they recognise, keyed on package
name plus signing certificate, and Bare is not on any published list yet. The first attempt
fails with "browser is not recognized"; choose Trust when prompted, or add
org.barebrowser by hand under Bitwarden → Settings → Autofill → Privileged apps. If you
had trusted an earlier self-built Bare you will see "browser signature does not match"
instead, because release builds are signed with a different key than local ones: delete the
stale entry, then trust it again.
- Web Push is gone, as a consequence of removing the GCM channel in patch 0007.
- Password managers need one setting turned on. Chromium uses its own autofill by default
and never consults Android's autofill framework, so Bitwarden, 1Password and similar are
simply never asked. Turn on Settings → Autofill options → use another service and they work.
This is upstream behaviour, not something these patches introduce; the availability check
also refuses Google's own autofill service, so the path is third-party only.
- A custom search engine has no logo on the new tab page. Engines added by hand carry no
logo image, so the page shows none. Cosmetic only.
- A downloaded adaptive stream arrives as two files. Sites that stream video split the sound
into a separate track, so Bare offers the video and the audio as two downloads and leaves you
to put them together. Joining them in the browser means demuxing and remuxing both, which is
built out of pieces already in the tree but is not built yet.
- Segmented HLS and DASH offer nothing. A
.m3u8 or .mpd is a list of where the pieces
are, and a lone .ts or .m4s segment is not playable on its own, so both are refused rather
than handed over as a download that would disappoint. Assembling a segmented stream is the same
missing job as above.
- This is not a YouTube downloader. YouTube keeps audio and video in separate streams and
asks for them in ranges Bare does not reassemble, so it will not produce a usable file there.
Seal, a yt-dlp front end, is the right tool for that.
- On a site that never reloads, the offered video may be one you scrolled past. Feeds navigate
without loading a new document, so what the tab fetched accumulates, and Bare offers whichever
video it pulled the most of. Usually that is the one you watched. Not always.
- Protected streaming is unproven. Widevine is detected, and a DRM test page reports it
as the available key system, but paid playback has never been exercised end to end. Treat
Netflix and the like as untested rather than working.
- DRM-protected media cannot be downloaded, and nothing here tries. Everything Bare offers is
a file the page already fetched in the clear.
- The first incognito tab of a session is slow to appear, showing a blank panel or a fade
before it settles. Measured, understood, not yet fixed.
- Third-party autofill can stop being offered until you navigate away and back. Bitwarden has
been seen to go quiet mid-session with no error anywhere; the silent early return that causes
it is known, the reason it triggers is not.
- arm64 only. There is no build for armeabi-v7a or x86, so an older phone or an emulator
cannot install it.
Not done yet
Each has an exact file and line reference in docs/stage-1-2.md:
- Safe Browsing, blocked by one un-gated call site in the Android JNI bridge
- Google XR SDKs (ARCore
Bare 是一个面向 Android 的去 Google 化 Chromium 构建,它移除了 Google 的追踪、遥测和 AI 集成,同时让浏览器扩展和 uBlock Origin 保持可用,并添加了后台视频播放、媒体保存等功能。