Transformer Lab is a free, open-source LLM workspace that you can run on your own computer. It is designed to go beyond what most modern open LLM applications allow. Using Transformer Lab you can easily finetune, evaluate, export and test LLMs across different inference engines and platforms.
Publisher’s description
What is Transformer Lab?
Transformer Lab by Ali Asaria is open-source Windows software in the ai assistants & llms category. It is written in Python.
Installation and requirements
The publisher provides EXE (NSIS) installers for 64-bit Windows. It can be installed for the current user only, without administrator rights. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 0.27.8, released on January 15, 2026. The version history goes back to February 15, 2025: 47 releases, all linked to the official files.
Popularity and file types
The source code on GitHub (transformerlab/transformerlab-app) has 5,197 stars. Similar programs include Claude Code, Codex CLI and ChatGPT.
Project description on GitHub: “The open source research environment for AI researchers to seamlessly train, evaluate, and scale models from local hardware to GPU clusters.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
- Large user base
Cons
- No native ARM64 build
In short: Transformer Lab is an open-source ai assistants & llm tool for 64-bit PCs. Administrators can deploy it unattended.
Is Transformer Lab 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:
1D179397870849CAE6DE4B53AF5B8EB889C795201C71F8D4AAA09A38C72EAEBA· 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 47 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 0.27.8Latest | January 15, 2026 | — | 64-bit EXE (NSIS) |
| 0.27.7 | January 5, 2026 | — | 64-bit EXE (NSIS) |
| 0.27.6 | December 22, 2025 | — | 64-bit EXE (NSIS) |
| 0.27.5 | December 22, 2025 | — | 64-bit EXE (NSIS) |
| 0.27.4 | December 19, 2025 | — | 64-bit EXE (NSIS) |
| 0.27.3 | December 15, 2025 | — | 64-bit EXE (NSIS) |
| 0.27.1 | December 12, 2025 | — | 64-bit EXE (NSIS) |
| 0.27.0 | December 12, 2025 | — | 64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id TransformerLab.TransformerLab -eTransformer-Lab-Setup-0.27.8.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- Ali Asaria
- Category
- AI assistants & LLMs
- Licence
- AGPL-3.0
- Price
- Free
- Source code
- github.com/transformerlab/transformerlab-app
- Written in
- Python
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Version
- 0.27.8
- Released
- January 15, 2026
- Added to the catalogue
- February 15, 2025
- Versions listed
- 47
- GitHub stars
- 5,197
- GitHub forks
- 553
- Website
- transformerlab.ai
- winget ID
- TransformerLab.TransformerLab
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Transformer Lab free?
Yes. Transformer Lab is open-source software under the AGPL-3.0 licence.
Is Transformer Lab 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 Transformer Lab 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 Transformer Lab be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Transformer Lab 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 Transformer Lab?
The versions page lists all 47 versions with links to their official installer files, back to February 15, 2025.
Can I use Transformer Lab without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to Transformer Lab?
Claude Code, Codex CLI, ChatGPT, GPT4All and Jan. The alternatives page compares them.
