Simpl.js

Name: Simpl.js
Rating: 4.86 (7 reviews)
Author: Klaus Ganser

Simpl.js lets you write and run full-stack javascript apps in your browser

As of May 2026, Simpl.js has 123 users and a 4.86/5 rating from 7 reviews in the Developer Tools category.

Klaus Ganser Developer Tools

Chrome Web Store ↗.crx

Users−18.5%

123

Rating0%

4.86

7 reviews

Reviews0%

Version

0.76

Manifest V2

History

2 snapshots

Tracking since Apr 24, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 24, 2026	151	4.86	7	0.76
May 20, 2026	136	4.86	7	0.76
Now	123	4.86	7	0.76

Permissions & access

Permissions: unlimitedStoragesystem.cpusystem.displaysystem.memorysystem.networksystem.storagebrowser
Host access: http://*/, https://*/, ftp://*/

Screenshots

About

Simpl.js comes with modules to set up HTTP servers, TCP socket servers and clients, databases, and more. Its integrated development environment supports versioning, manages dependencies and app configuration, and generates module documentation from source code.

You get everything without ever leaving the browser!