Otter Browser aims to recreate the best aspects of the classic Opera (12.x) UI using Qt5.
Publisher’s description
What is Otter Browser?
Otter Browser is an open-source program for Windows from Otter Browser Team.
Installation and requirements
Official installers exist for 64-bit as EXE (Inno Setup). The main installer is 42.8 MB. It needs Windows 10 or newer. The installer supports unattended (silent) installation.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
Cons
- No native ARM64 build
- No update for more than a year
In short: Otter Browser is an open-source Windows tool for 64-bit PCs. Updates have slowed down. Administrators can deploy it unattended.
Is Otter Browser safe to download?
- The file is served by sourceforge.net; check that it is the publisher’s official mirror
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
38B60A46DA6DC2A622448A4428A77E34BF356D5B8CE087227E3F90B68A4DB6AA· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.0.02Latest | June 21, 2021 | 42.8 MB | 64-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id OtterBrowserTeam.OtterBrowser -edownload /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- Otter Browser Team
- Licence
- GPLv3
- Price
- Free
- Requires
- Windows 11 / 10 (Windows 10+)
- Architecture
- 64-bit
- Installer
- EXE (Inno Setup)
- Version
- 1.0.02
- Released
- June 21, 2021
- Added to the catalogue
- June 21, 2021
- Versions listed
- 1
- winget ID
- OtterBrowserTeam.OtterBrowser
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is Otter Browser free?
Yes. Otter Browser is open-source software under the GPLv3 licence.
Is Otter Browser safe to download?
The download comes from sourceforge.net; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Otter Browser with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Otter Browser be installed silently?
Yes. The silent install page lists the exact command for each installer.
Which Windows versions does Otter Browser support?
The installer requires Windows 10 or newer and is available for 64-bit.
Does Otter Browser run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.