An alternative bootstrapper for Roblox with a bunch of extra features.
Publisher’s description
What is UI?
UI by Sirstrap is open-source Windows software.
Installation and requirements
The publisher provides Portable installers for 64-bit Windows. It runs without installation (portable).
Updates and version history
The current version is 10.12.6.0, released on July 27, 2026. The version history goes back to August 25, 2025: 39 releases, all linked to the official files.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Portable: runs without installation
Cons
- No native ARM64 build
In short: UI is an open-source Windows tool for 64-bit PCs.
Is UI 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:
66D76E4FFDF1CBCC61170409705EAE12A3A9D2C94AAD95F04456C3BC2FFAB363· 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 39 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 10.12.6.0Latest | July 27, 2026 | — | 64-bit ZIP |
| 10.12.5.2 | July 3, 2026 | — | 64-bit ZIP |
| 10.12.5.1 | July 3, 2026 | — | 64-bit ZIP |
| 10.12.5.0 | July 3, 2026 | — | 64-bit ZIP |
| 10.12.4.0 | July 2, 2026 | — | 64-bit ZIP |
| 10.12.3.0 | June 25, 2026 | — | 64-bit ZIP |
| 10.12.2.1 | June 12, 2026 | — | 64-bit ZIP |
| 10.12.2.0 | June 11, 2026 | — | 64-bit ZIP |
Install from the command line
Silent install ›winget install --id Sirstrap.UI -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- Sirstrap
- Licence
- AGPL-3.0 license
- Price
- Free
- Source code
- github.com/massimopaganigh/Sirstrap
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 10.12.6.0
- Released
- July 27, 2026
- Added to the catalogue
- August 28, 2025
- Versions listed
- 39
- Website
- github.com
- winget ID
- Sirstrap.UI
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is UI free?
Yes. UI is open-source software under the AGPL-3.0 license licence.
Is UI 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 UI 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.
Does UI run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of UI?
The versions page lists all 39 versions with links to their official installer files, back to August 25, 2025.
Can I use UI without administrator rights?
Yes, it is portable: unpack and run it.
