Otter Browser
Opera 12, lovingly recreated.
A faithful re-creation of the classic Opera 12 experience — mouse gestures, sidebar, note-taking, per-site preferences — on a modern Qt engine.
- Engine
- Blink (QtWebEngine)
- License
- Open source
- Runs on
- Windows, macOS, Linux
- Top marks
- Classic interface, Open source
- Updated
- September 2026
Why it shines
- Classic Opera workflow, modern engine
- Mouse gestures and sidebar built in
- Very configurable
Worth knowing
- Small project, slow release cadence
- Some rough edges on complex web apps
Origins
Otter Browser belongs to The Chromium empire — descended from QtWebEngine.
Does well
Ranked in
Scorecard
- Tracking protection1/3
- Fingerprinting resistance0/3
- Anonymity0/3
- Built-in ad blocking0/3
- Customization2/3
- Keyboard control0/3
- Built-in tools2/3
- Minimal interface0/3
- Fresh design0/3
- Classic interface3/3
- Light on resources2/3
- Raw speed0/3
- Battery efficiency0/3
- Extension ecosystem0/3
- Cross-device sync0/3
- Site compatibility2/3
- Low maintenance1/3
- Open source3/3
- Independence1/3
- Built-in AI0/3
- Gaming features0/3
- Dev tooling0/3
0–3 on each of the 22 criteria the quiz and the guides rank by. How we score.
