COSBrowser is a visual interface tool launched by Tencent Cloud to make it easier and simpler for you to view, transfer, manage, and interact with COS resources.
Publisher’s description
What is cosbrowser?
cosbrowser by Tencent is free Windows software.
Installation and requirements
The publisher provides EXE (NSIS) installers for 64-bit and 32-bit Windows. The main installer is 177.8 MB. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 2.13.1, released on August 28, 2026. The version history goes back to June 24, 2024: 9 releases, all linked to the official files. That is about 4.1 releases a year.
Pros / Cons
Pros
- Free to use
- Documented silent install
- Updated in the last two months
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: cosbrowser is a free Windows tool for 64-bit and 32-bit PCs. It is actively maintained. Administrators can deploy it unattended.
Is cosbrowser safe to download?
- The file is served by cos5.cloud.tencent.com; 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:
CC74B73F3AE8AFF66DC61179043639BCA1778DE026B6E9B2165280E8641980A7· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 9 versions ›9 versions over 2 years · about 4.1 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 2.13.1Latest | August 28, 2026 | 177.8 MB | 32-bit EXE (NSIS)64-bit EXE (NSIS) |
| 2.12.2 | October 24, 2025 | — | 64-bit EXE (NSIS)32-bit EXE (NSIS) |
| 2.12.1 | September 11, 2025 | — | 64-bit EXE (NSIS)32-bit EXE (NSIS) |
| 2.12.0 | September 9, 2025 | — | 64-bit EXE (NSIS)32-bit EXE (NSIS) |
| 2.11.28 | August 27, 2025 | — | 32-bit EXE (NSIS)64-bit EXE (NSIS) |
| 2.11.27 | August 8, 2025 | — | 32-bit EXE (NSIS)64-bit EXE (NSIS) |
| 2.11.26 | March 12, 2025 | — | 32-bit EXE (NSIS)64-bit EXE (NSIS) |
| 2.11.25 | February 25, 2025 | — | 32-bit EXE (NSIS)64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id Tencent.COSBrowser -ecosbrowser-setup-2.13.1.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- Tencent
- Licence
- Freeware
- Price
- Free
- Requires
- Windows 11 / 10
- Architecture
- 64-bit, 32-bit
- Installer
- EXE (NSIS)
- Version
- 2.13.1
- Released
- August 28, 2026
- Added to the catalogue
- June 24, 2024
- Versions listed
- 9
- Updates / year
- 4.1
- Website
- tencentcloud.com
- winget ID
- Tencent.COSBrowser
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is cosbrowser free?
Yes. cosbrowser is free to use.
Is cosbrowser safe to download?
The download comes from cos5.cloud.tencent.com; 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 cosbrowser 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 cosbrowser be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does cosbrowser run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit and 32-bit version through emulation.
Where can I download an older version of cosbrowser?
The versions page lists all 9 versions with links to their official installer files, back to June 24, 2024.