RunJS vs StackBlitz
RunJS
runjs.app
StackBlitz
stackblitz.comSide by side
| Figure | RunJS | StackBlitz |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 2 | 8 |
| Spec score · Code Playground Software | 7.0 (#49) | 8.7 (#7) |
| Headquarters | Little Paxton, St. Neots, United Kingdom | StackBlitz's privacy policy identifies its headquarters as being in the United States and lists a San Francisco mailing address. |
| Support | The creator says support questions go directly to him, and education license applicants usually hear back within a day or two. | The site links to StackBlitz Community, documentation, and Enterprise Sales for support and contact. |
| What it does | RunJS is a desktop scratchpad for rapidly prototyping JavaScript and TypeScript, with code results shown alongside the editor. | StackBlitz is a browser-based full-stack JavaScript IDE powered by WebContainers, which run Node.js inside the browser. |
Plans
StackBlitz
- Personal+Price not published
- Enterprise ServerPrice not published
- PersonalFree
- PersonalFree
- Pro$25 a month
- Teams$60 a month
- EnterprisePriced on request
- Enterprise & Self-hostedPriced on request
In their own words
StackBlitz
StackBlitz is a browser-based full-stack web IDE for the JavaScript ecosystem. Its WebContainers run Node.js development environments inside a browser tab, and the service lists millisecond startup and offline work. StackBlitz presents rapid prototyping and coding interviews as use cases. Integrations include a Figma plugin, Storybook addon, and userscript for opening GitHub projects in Codeflow. Viewing and editing projects needs no account, but saving or collaborating requires GitHub. WebContainers depend on SharedArrayBuffer and cross-origin isolation. Enterprise options connect GitHub Enterprise, GitLab, Bitbucket, private npm registries, JFrog Artifactory, and Sonatype Nexus. Enterprise code runs in an isolated browser sandbox with SAML2 single sign-on, an admin portal, and self-hosting on bare metal or in a VPC through Kubernetes. Plans include free access and a 14-day trial; listed plan prices are not provided.