head to head · open source
openapi-generator vs cypress-realworld-app
openapi-generator has 26,745 GitHub stars, 7,674 forks, 5,751 open issues and last shipped yesterday. cypress-realworld-app has 5,912 stars, 2,612 forks, 31 open issues and last shipped 4 days ago. openapi-generator leads on adoption by 352% (26,745 vs 5,912 stars). openapi-generator is written in Java under Apache-2.0; cypress-realworld-app is written in TypeScript under MIT. openapi-generator has attracted 29% as many forks as stars, cypress-realworld-app 44%. openapi-generator was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 8884 open source comparisons
Side by side
| openapi-generator | cypress-realworld-app | |
|---|---|---|
| GitHub stars | ★ 27K | ★ 5.9K |
| License | Apache-2.0 | MIT |
| Written in | Java | TypeScript |
| Last push | 2026-09-17 | 2026-09-14 |
| Forks | ⑂ 7.7K | ⑂ 2.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick openapi-generator if
- You weight community size — 27K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick cypress-realworld-app if
- You want the cypress-realworld-app feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and cypress-realworld-app fits your workflow better
About openapi-generator
OpenAPI Generator is an Apache 2.0 licensed Java tool that generates API client libraries, server stubs, documentation, and configuration automatically from an OpenAPI Specification, and it is built for development teams that keep a machine readable API description and want generated code to stay in step with it.
read the full openapi-generator overview →
About cypress-realworld-app
Cypress Real World App is a full stack payment application built to demonstrate real world usage of Cypress testing methods, patterns, and workflows, intended for developers and test engineers who want to practise end to end, component, and API testing against something that behaves like a production application.
read the full cypress-realworld-app overview →
More in Developer Tools
Related comparisons
More API Development & Testing projects
Compare either of these against the rest of the API Development & Testing field.
Frequently asked questions
Is openapi-generator or cypress-realworld-app more popular?
openapi-generator has 26,745 GitHub stars and cypress-realworld-app has 5,912. openapi-generator has the larger community by that measure.
Are openapi-generator and cypress-realworld-app free?
Both are open source. openapi-generator is licensed under Apache-2.0 and cypress-realworld-app under MIT. Neither carries a licence fee.
What is the difference between openapi-generator and cypress-realworld-app?
openapi-generator is written in Java and cypress-realworld-app in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, openapi-generator or cypress-realworld-app?
Choose openapi-generator if you want the larger community (26,745 stars) or its Apache-2.0 licence terms. Choose cypress-realworld-app if its feature set, stack or MIT licence fits better. Both are self-hostable.