About RunJS
RunJS is an JavaScript playground that auto-evaluates your code as you type and outputs the results to a console pane.
RunJS 4.1.0
RunJS is an JavaScript playground that auto-evaluates your code as you type and outputs the results to a console pane.
- By Haas Labs Ltd
- Proprietary
- Updated Jul 7, 2026
What's new in 4.1.0
- Added a custom provider option to the AI assistant
- Added an option to control npm install scripts
- Upgraded Node.js to 24.17.0
- Upgraded Chromium to 150
- Upgraded V8 to 15.0
- Fixed an npm caching issue
- Fixed an issue where string literals at the top of a file were not shown in the output
Technical details
| Publisher | Haas Labs Ltd |
|---|---|
| Author | Luke Haas |
| Version | 4.1.0 |
| Release date | 2026-07-07 |
| License | Proprietary |
| Installer type | nullsoft |
| Architecture | x64 |
| Package ID | lukehaas.RunJS |
Links & install command
Install RunJS from the command line with Windows Package Manager (winget):
winget install --id=lukehaas.RunJS -eOlder versions
- 3.2.0
- 3.1.2
- 3.1.1
- 3.1.0
- 3.0.3
- 2.12.1
- 2.12.0
- 2.11.0
- 2.9.0
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