Ad blocking built in. uBlock Origin if you prefer it.

Blanc Blocker stops ads and known trackers with built-in lists. The shield on the Island opens its controls for the site you’re on.

The shield opens site controls for the connection, blocking state and page count. This illustration uses a sample count of three blocked requests.

Start protected, not set up.

Built around the web, not a browser store.

Blanc Blocker loads its lists directly in the browser. You do not need to find, install, or manage an extension before browsing.

Know the site, not just the count.

Open the shield to see whether the page uses HTTPS and how many requests Blanc blocked. It reports only what the address proves, without turning the browser into a security dashboard.

Let a site through when you choose.

Need a site exception? Use the switch in the shield popover, or type /allow-ads. Blanc keeps the choice specific to that site instead of making it an all-or-nothing setting.

Full uBlock Origin, not a Lite version.

Choose it from the shield.

Click the shield on the island, choose uBlock Origin, then restart Blanc to apply it. Blanc Blocker stays the default until you switch.

The uBlock Origin you know.

Blanc includes uBlock Origin 1.75.0 with its popup, dashboard, logger, element picker, custom filters and filter-list subscriptions. Filter lists can update on their own; uBlock Origin itself updates only with reviewed Blanc releases.

Where it runs.

uBlock Origin is available for regular tabs on Apple Silicon and Intel Macs, Windows x64 and Linux x64. Private tabs always use Blanc Blocker, and so does the Intel build when it runs under Rosetta on an Apple Silicon Mac. Each profile keeps its own uBlock Origin settings, and they are not synced.

One bundled extension, not an extension store.

uBlock Origin is the one extension Blanc includes. Blanc does not install other browser extensions.

An ad got through? Send a reproducible example.

A page we can test

Report a missed ad with its page URL, Blanc version, operating system, blocker settings, expected result and the ad you observed. A screenshot is optional. For examples containing private information, email support@blanc.day.

Reports help distinguish filter coverage, a blocker integration defect and an ad format the blocker does not support. A report is closed with reproduction and verification evidence, or a documented limitation.

Blocking saves memory, not just noise.

Ads and trackers cost real memory to render. With six ad-heavy sites open, blocking them at the network layer is worth gigabytes.

Memory used by each browser with six ad-heavy sites open, in gibibytes
Browser	Memory used
Blanc	1.5 GB
Brave	1.7 GB
Zen	4.7 GB
Chrome	4.9 GB
Edge	7.4 GB
Vivaldi	7.4 GB

Measured 19 October 2026 with Blanc 1.38.0, on fresh profiles with no extensions. Brave also blocks by default, and in this run it used a little more. With Blanc’s blocker turned off, the same pages used 5.2 GB, about the same as Chrome, so the saving comes from blocking. Method and raw data are in our repository.

Browse with less following you around.

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