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Important Announcements Regarding Recent Changes

Please read important announcements here:

Nano Adblocker Core

Just another adblocker

Nano Adblocker is based on uBlock Origin.

Please open an issue if there is something you want us to know.


New code is now in the NanoCore2 repository. Legacy code can be downloaded from release archives.

Warning: Do not install from unofficial sources! Any websites that are not linked below are considered to be unofficial.

Install Links

Get it for Edge

Get it for Legacy Edge (Unmaintained)

Get it for Chrome or Chromium This listing is no longer under my control

Get Nano Defender, the perfect companion extension for Nano Adblocker

Official Ports

Get it for Firefox (Maintained by @LiCybora)

Maintainers wanted for other browsers (open an issue and let me know)

For Developers

Edge version discussion thread

Notable Changes

Nano Filter Editor

  • Syntax highlighting
  • Linting


Nano Filter Viewer

  • Blazing fast
  • Plain string and regular expression search


Nano Extra Resources

View resources library

Other Changes

Note: user interface and other housekeeping changes are not listed here.

  • Extended advanced settings
  • Tweaked filter syntax
  • Enabled Block CSP reports by default (to prevent websites from abusing it to track users)
  • Made cache control button to be always shown
  • Added force scroll mode (to be used with element zapper)
  • Added Quick Issue Reporter
  • Added a few more filters to filters manager

There are also a few changes specifically for legacy Edge:

  • Mapped fetch requests to xhr

Other Notes

  • Nano Adblocker is 100% free, and I do not accept donations for Nano Adblocker.