About LLRT
LLRT (Low Latency Runtime) is an experimental, lightweight JavaScript runtime designed to address the growing demand for fast and efficient Serverless applications.
LLRT 0.8.1-beta
LLRT (Low Latency Runtime) is an experimental, lightweight JavaScript runtime designed to address the growing demand for fast and efficient Serverless applications.
- By Amazon Web Services
- Open Source
- Portable
- Updated Feb 20, 2026
Technical details
| Publisher | Amazon Web Services |
|---|---|
| Version | 0.8.1-beta |
| Release date | 2026-02-20 |
| License | Apache-2.0 |
| Installer type | zip |
| Architecture | x64 |
| Package ID | Amazon.LLRT |
Install LLRT from the command line
- Install with Windows Package Manager
winget install --id=Amazon.LLRT -e- Update to the latest version
winget upgrade --id=Amazon.LLRT -e- Uninstall
winget uninstall --id=Amazon.LLRT -e
Frequently asked questions
Is LLRT free?
Yes. LLRT is free and open-source software released under the Apache-2.0 license.
What is the latest version of LLRT?
The latest version is 0.8.1-beta, released on Feb 20, 2026.
Is it safe to download LLRT?
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 28108946ce8c0d849d2ad7d9a25921aacfe33de0cde144c7954ebbc39b50b6ee.
Which Windows versions does LLRT support?
LLRT runs on Windows and is available for 64-bit (x64) systems.
How do I uninstall LLRT?
Open Settings › Apps › Installed apps, find LLRT and select Uninstall. From the command line, run winget uninstall --id=Amazon.LLRT -e.
Is there a portable version of LLRT?
Yes. LLRT is available as a portable ZIP archive (llrt-windows-x64.zip, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.
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