UT Video Codec Suite is a fast, lossless video codec, developed by Takeshi Umezawa (梅澤 威志, Umezawa Takeshi) and released under the free GNU General Public License. The algorithm of UT video is based on the Huffman code.
UT video was developed as an alternative to HuffYUV, in order to achieve better compression. It can handle color spaces such as YUV422 (ULY2), RGB (ULRG), RGBA (ULRA) and, most recently, YUV420 (ULY0).
It has both x86 and x64 builds. Due to its multithreading support, this codec is also capable of encoding HDTV material in real time. The codec requires support for the SSE2 instruction set because it is heavily used for speed optimizations.
UT video uses the following FOURCC codes: ULY0, ULY2, ULRA, ULRG.
It is used in the screen recording software OBS Studio and video editing software KDenLive when set to "Lossless" video quality.
From the Wikipedia article “Ut Video Codec Suite”, CC BY-SA 4.0
What is Ut Video Codec Suite?
Ut Video Codec Suite is an open-source program for Windows from UMEZAWA Takeshi. It is written in C++.
Installation and requirements
Official installers exist for 32-bit as EXE (Inno Setup). Installation asks for administrator rights. The installer supports unattended (silent) installation.
Updates and version history
The current version is 23.2.0, released on June 6, 2025. 8 versions are listed since March 30, 2021, each with links to its own installer files. That is about 1.9 releases a year. The last update is more than a year old.
Popularity and file types
The Chocolatey package has been downloaded 10,144 times. The source code on GitHub (umezawatakeshi/utvideo) has 351 stars. Wikipedia has an article about it in 3 of our languages.
Project description on GitHub: “Ut Video Codec Suite - fast lossless video codec”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
Cons
- No native ARM64 build
- 32-bit only
- Installation needs administrator rights
- No update for more than a year
In short: Ut Video Codec Suite is an open-source Windows tool for 32-bit PCs. Updates have slowed down. Administrators can deploy it unattended.
Is Ut Video Codec Suite safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
E617C9AE0491165EB4D527D54D447A09739B7B3D2E52FFE995BE67DD0E66730C· Open the VirusTotal report for this hash - The link has not been checked yet
- 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 8 versions ›8 versions over 4 years · about 1.9 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 23.2.0Latest | June 6, 2025 | — | 32-bit EXE (Inno Setup) |
| 23.1.0 | April 23, 2023 | — | 32-bit EXE (Inno Setup) |
| 23.0.1 | May 3, 2022 | — | 32-bit EXE (Inno Setup) |
| 23.0.0 | October 27, 2021 | — | 32-bit EXE (Inno Setup) |
| 22.6.0 | August 5, 2021 | — | 32-bit EXE (Inno Setup) |
| 22.5.0 | July 5, 2021 | — | 32-bit EXE (Inno Setup) |
| 22.4.0 | July 5, 2021 | — | 32-bit EXE (Inno Setup) |
| 21.3.1 | March 30, 2021 | — | 32-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id UMEZAWATakeshi.UtvideoCodecSuite -echoco install utvideo -yutvideo-23.2.0-win.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- UMEZAWA Takeshi
- Licence
- GPL-2.0
- Price
- Free
- Source code
- github.com/umezawatakeshi/utvideo
- Written in
- C++
- Requires
- Windows 11 / 10
- Architecture
- 32-bit
- Installer
- EXE (Inno Setup)
- Version
- 23.2.0
- Released
- June 6, 2025
- Added to the catalogue
- March 30, 2021
- Versions listed
- 8
- Updates / year
- 1.9
- Chocolatey downloads
- 10,144
- GitHub stars
- 351
- GitHub forks
- 16
- Website
- github.com
- winget ID
- UMEZAWATakeshi.UtvideoCodecSuite
- Chocolatey package
- utvideo
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is Ut Video Codec Suite free?
Yes. Ut Video Codec Suite is open-source software under the GPL-2.0 licence.
Is Ut Video Codec Suite safe to download?
The download comes from github.com, which belongs to the publisher; 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 Ut Video Codec Suite 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 Ut Video Codec Suite be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Ut Video Codec Suite run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 32-bit version through emulation.
Where can I download an older version of Ut Video Codec Suite?
The versions page lists all 8 versions with links to their official installer files, back to March 30, 2021.