Otter Browser
Otter Browser Logo.svg
Otter Browser (Breeze style).png
Otter Browser using Breeze style on KDE Plasma 5
Developer(s)Michał Dutkiewicz
Initial releaseJanuary 1, 2014; 8 years ago (2014-01-01)
Stable release
1.0.03[1] Edit this on Wikidata / 22 February 2022; 4 months ago (22 February 2022)
Written inC++
EnginesQt WebEngine, QtWebKit
Operating systemUnix-like (Linux, FreeBSD, OpenBSD), macOS, Microsoft Windows, Haiku, RISC OS,[2] OS/2,[3][4] (ArcaOS)
TypeWeb browser

Otter Browser is a cross-platform web browser that aims to recreate aspects of Opera 12.x using Qt framework while keeping seamless integration with users' desktop environments.[5][6][7] Otter Browser is licensed under GPL-3.0-or-later. It works on Linux-based operating systems, FreeBSD, OpenBSD, macOS, and Windows platforms (others in development).[8]


Following the decision by the board to change focus at Opera Software[9] towards quarterly profits, co-founder Jon von Tetzchner left the company. Opera then announced that it would switch from the Presto layout engine that it had developed to the WebKit rendering engine, also used by Google Chromium project.[10] It later followed Chrome again when it changed to the Blink rendering engine. Around the same time, the Opera community website My Opera was closed down. The new Opera left many of its users disgruntled.[11][12]

At this time, Michał Dutkiewicz began creating Otter Browser.[13]

The first iteration of the browser was released in 2014—an alpha release in binary form and source code.[14] A notable aspect of the emergent browser is its modular model, making it possible for users to replace components.[14]



  1. ^
  2. ^
  3. ^ "Timeline Announcement for Public Beta of New Otter Browser".
  4. ^ "Otter Browser aims to bring Chromium to decades-old OS/2 operating system".
  5. ^ "Otter browser". Otter browser. 2014-01-02. Retrieved 2016-06-03.
  6. ^ "Opera-Like Otter Web Browser Out In Alpha Form". Phoronix. 2016-06-03. Retrieved 2016-06-03.
  7. ^ "Otter Browser Brings Hope To Opera Lovers". Retrieved 2019-01-02.
  8. ^ Nestor, Marius (3 January 2017). "Opera 12 Clone Otter Browser Beta 12 Improves KDE Plasma 5 and Unity Integration". softpedia. Retrieved 2019-03-08.
  9. ^ "Otter Browser PPA (release)". Retrieved 2019-01-02.
  10. ^ Wohlscheid, John Paul (2016-06-29). "[Review] Otter Browser Brings Hope To Opera Lovers". It's FOSS. Retrieved 2019-03-08.
  11. ^ "Blink-based Opera 15 strikes a sour note with users". IDG. 3 July 2013. Retrieved 29 July 2013.
  12. ^ "Rebuilt Opera Browser Arrives on Desktop With User Backlash". Purch. Retrieved 29 July 2013.
  13. ^ "Десятый кандидат в релизы браузера Otter". Retrieved 2019-01-02.
  14. ^ a b Brinkmann, Martin (2014). "The Otter browser project aims to recreate the classic Opera web browser - gHacks Tech News". Retrieved 2019-03-08.