The best ReadyAPI alternative is Apidog (9.8/10), best for teams that want API design, mocks, tests and docs in one tool at a low per-user price. Cheaper to start: Apidog, Karate, Postman, Bruno, Insomnia, Hoppscotch, Katalon Studio. With a free plan: Apidog, Karate, Postman, Bruno, Insomnia, Hoppscotch, Apache JMeter, Katalon Studio, REST Assured.
| Tool | Score | Free plan | Paid from (annual) | REST API testing | GraphQL testing | Load testing | API mocking | CI/CD integration |
|---|---|---|---|---|---|---|---|---|
| ReadyAPI | 8.1/10 | No | $549.92/user/mo | Yes | Yes | Yes | Yes | Yes |
| Apidog | 9.8/10 | Yes | $9/user/mo | Yes | Yes | Yes | Yes | Yes |
| Karate | 9.8/10 | Yes | $8.33/user/mo | Yes | Yes | Yes | Yes | Yes |
| Postman | 9.8/10 | Yes | $9/user/mo | Yes | Yes | Yes | Yes | Yes |
| Bruno | 9.4/10 | Yes | $6/user/mo | Yes | Yes | Not confirmed | Yes | Yes |
| Insomnia | 9.4/10 | Yes | $10/user/mo | Yes | Yes | Not confirmed | Yes | Yes |
| Hoppscotch | 8.9/10 | Yes | $6/user/mo | Yes | Yes | Not confirmed | Yes | Not confirmed |
| Apache JMeter | 8.8/10 | Yes | See vendor | Yes | Yes | Yes | Not confirmed | Yes |
| Katalon Studio | 8.7/10 | Yes | $150/user/mo | Yes | Yes | Not confirmed | Not confirmed | Yes |
| iceDQ | 7.8/10 | No | See vendor | Yes | Yes | Not confirmed | Not confirmed | Yes |
| REST Assured | 7.5/10 | Yes | See vendor | Yes | Not confirmed | Not confirmed | Not confirmed | Not confirmed |
All-in-one API platform for design, debugging, mocking, testing and documentation.
Open-source framework for API, UI and performance testing, with paid IDE plugins and an enterprise edition.
API platform for building, testing, mocking and monitoring APIs.
Open-source, Git-native API client that stores collections as plain files.
Open-source API client from Kong for debugging, testing and mocking APIs.
Open-source API development platform for REST, GraphQL and realtime APIs, in the browser or self-hosted.
Open-source Java application for load and functional testing of web apps, APIs and other protocols.
Test automation tool for web, API, mobile and desktop testing.
Data testing, reconciliation and monitoring platform from Torana Inc. that checks data across databases, files, APIs and BI reports.
Open-source Java library for testing REST services.
Apidog is the highest-scoring alternative (9.8/10), best for teams that want API design, mocks, tests and docs in one tool at a low per-user price.
Apidog (from $9/user/mo), Karate (from $8.33/user/mo), Postman (from $9/user/mo), Bruno (from $6/user/mo), Insomnia (from $10/user/mo), Hoppscotch (from $6/user/mo), Katalon Studio (from $150/user/mo) start cheaper than ReadyAPI ($549.92/user/mo) on annual billing.
Yes: Apidog, Karate, Postman, Bruno, Insomnia, Hoppscotch, Apache JMeter, Katalon Studio, REST Assured have free plans.