RunJS offers a way to start free, but not a standard ongoing plan. Homepage offers a free download;

How much does RunJS cost?

RunJS does not publish a monthly price we could confirm.

Does RunJS have an API?

We could not confirm API access for RunJS.

● Identity checked

Developer tools · Vendor site 2026-10-04

RunJS is a desktop JavaScript and TypeScript playground for macOS, Windows, and Linux that evaluates code as you type.

Updated 2026-10-04View sources

Understand the total cost

Pricing

Not listed

Official monthly price not confirmed

No retained pricing changes yet. A current price alone does not establish a historical trend.

Identity and profile

Reviewed vendor source

2026-10-04

Facts apply to the named version and check date. Send a sourced correction if something changed.