head to head · open source
Hoppscotch vs openapi-generator-cli
Hoppscotch has 80,336 GitHub stars, 6,112 forks, 820 open issues and last shipped 3 days ago. openapi-generator-cli has 1,977 stars, 208 forks, 71 open issues and last shipped 3 days ago. Hoppscotch leads on adoption by 3,964% (80,336 vs 1,977 stars). Hoppscotch is written in TypeScript under MIT; openapi-generator-cli is written in TypeScript under Apache-2.0. Hoppscotch has attracted 8% as many forks as stars, openapi-generator-cli 11%. Hoppscotch 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.
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Side by side
| Hoppscotch | openapi-generator-cli | |
|---|---|---|
| GitHub stars | ★ 80K | ★ 2.0K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-16 | 2026-09-16 |
| Forks | ⑂ 6.1K | ⑂ 208 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Hoppscotch if
- You weight community size — 80K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick openapi-generator-cli if
- You want the openapi-generator-cli feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and openapi-generator-cli fits your workflow better
About Hoppscotch
Hoppscotch is an open source API development ecosystem that provides a full featured client for designing, testing, and documenting APIs. It operates as a web based application, desktop app, and CLI tool, supporting offline, on premises, and cloud deployments. Built with TypeScript and licensed under MIT, it serves as a direct open source alternative to proprietary tools like Postman and Insomnia.
read the full Hoppscotch overview →
About openapi-generator-cli
@openapitools/openapi generator cli is a Node package that wraps the Java based OpenAPI Generator, letting JavaScript and TypeScript developers generate API client libraries, server stubs, and documentation from OpenAPI 2.0 and 3.0 specifications without invoking the upstream Java toolchain by hand.
read the full openapi-generator-cli overview →
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Frequently asked questions
Is Hoppscotch or openapi-generator-cli more popular?
Hoppscotch has 80,336 GitHub stars and openapi-generator-cli has 1,977. Hoppscotch has the larger community by that measure.
Are Hoppscotch and openapi-generator-cli free?
Both are open source. Hoppscotch is licensed under MIT and openapi-generator-cli under Apache-2.0. Neither carries a licence fee.
What is the difference between Hoppscotch and openapi-generator-cli?
Hoppscotch is written in TypeScript and openapi-generator-cli 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, Hoppscotch or openapi-generator-cli?
Choose Hoppscotch if you want the larger community (80,336 stars) or its MIT licence terms. Choose openapi-generator-cli if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.