Discussions

Free / Open Source Alterative to Postman
๐ŸŒ r/softwaretesting
25
9
December 12, 2023
Fully Open Source API Testing Tools?
https://github.com/requestly/requestly/ - an open-source API Client + Desktop App . More on reddit.com
๐ŸŒ r/webdev
8
3
July 3, 2024
Is there a dummy API for testing/practice?
There are plenty of free APIs you can use for learning - https://github.com/toddmotto/public-apis/ More on reddit.com
๐ŸŒ r/javascript
26
34
January 13, 2017
Good free tools for API testing?
๐ŸŒ r/cybersecurity
5
4
June 7, 2025
People also ask

How does the Image to API feature work?
The Image to API feature uses AI to analyze UI screenshots and automatically generate working API endpoints. Upload a screenshot of your design (or a Figma frame), and we generate REST endpoints and schemas you can deploy. Available on all plans with different usage limits; deployment requires Pro or above.
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reqres.in
reqres.in
ReqRes: Free REST API for Testing, Prototyping & QA ...
What are the different API key types?
ReqRes offers three API key permission levels: read-only (GET only), read/write (GET, POST, PUT, PATCH), and manage (includes DELETE operations). Use admin keys for managing collections and automations; use session tokens for per-user data access.
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reqres.in
reqres.in
ReqRes: Free REST API for Testing, Prototyping & QA ...
What is a frontend-first backend?
A frontend-first backend gives you production-grade data, auth, and automations without standing up servers. ReqRes lets you create projects with collections, app users, magic-link auth, and logs so your frontend can ship with real data and stay production-ready.
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reqres.in
reqres.in
ReqRes: Free REST API for Testing, Prototyping & QA ...
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Apipheny
apipheny.io โ€บ free-api
Free API โ€“ 90+ Public APIs For Testing [No Key] โ€“ Apipheny
These dedicated pages are typically ... and will include detailed documentation to help you get started with their API. Some APIs will require you to register to the providerโ€™s service, after which you will receive a Key & Secret or OAuth (similar to a Username & Password) to gain access. Some, however, are completely open. The easiest way to manage and execute the APIs above is to use Postman. Itโ€™s a popular API client where you can quickly and easily create, test, and document ...
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Reqres
reqres.in
ReqRes: Free REST API for Testing, Prototyping & QA ...
Browser ยท Node ยท cURL ยท Postman ยท HTTPie ยท mobile ยท desktop ... Switch between authentication, CRUD, and pagination. ... Scope data with Authorization: Bearer <session_token>. ... Two real apps โ€“ magic-link auth + per-user CRUD โ€“ all from fetch(). Open example in your project โ†’ Enter the task register demo โ†’ Runs on a free ReqRes account.
API development tool
Postman is an Indian-origin global software company that offers an API platform for developers to design, build, test, and collaborate on APIs. Over 30 million registered users and 500,000 organizations are using โ€ฆ Wikipedia
Factsheet
Original authors Abhinav Asthana, Ankit Sobti, Abhijit Kane
Stable release 11.54.6
/ 18 July 2025; 7 months ago (18 July 2025)
Factsheet
Original authors Abhinav Asthana, Ankit Sobti, Abhijit Kane
Stable release 11.54.6
/ 18 July 2025; 7 months ago (18 July 2025)
๐ŸŒ
Postman
postman.com
Postman: The World's Leading API Platform | Sign Up for Free
Develop, test, manage, and distribute APIs and services. Built for engineers.
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Reddit
reddit.com โ€บ r/softwaretesting โ€บ free / open source alterative to postman
r/softwaretesting on Reddit: Free / Open Source Alterative to Postman
December 12, 2023 -

Hello All,

I know there is a bunch of asks for an alternative to postman, but none that relates to my request per say or at least that I can find. I am currently using the free version and now being limited on requests and my company is not interested in doing the paid version anytime soon. I am looking for something free / open source with more and / or unlimited requests if possible. I like Postman, but they are constantly changing up things or limiting the free version more and more. The biggest thing for me right now is certain features and being limited of requests i can execute per month.

One of the parts I use alot is their Collection Runner feature. I like the simplicity use of it and i can use excel spreadsheets to add / generate data and map that data and run tons of calls without having to create and match the same behavior with a bunch of steps. Does anyone know of another piece of software that has something similar with collection runner type feature?

Thanks for your time.

-edit: thank you all for the suggestions. Iโ€™ve been messing with a lot of them but seems Bruno has been the one that offers whatโ€™s I am looking for.

Find elsewhere
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ReqBin
reqbin.com
Online API Testing Tool | Test Your API Online
Enter your request details and click "Send" to make the request and see the result. All data is transmitted only via secure SSL channels. It's free: ReqBin Online API Tester is free to use. You can start running requests for free right now, ...
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GitHub
github.com โ€บ public-apis โ€บ public-apis
GitHub - public-apis/public-apis: A collective list of free APIs ยท GitHub
A collective list of free APIs. Contribute to public-apis/public-apis development by creating an account on GitHub.
Starred by 411K users
Forked by 44.4K users
Languages ย  Python 96.8% | Shell 3.2%
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freeCodeCamp
freecodecamp.org โ€บ news โ€บ how-to-test-and-play-with-web-apis-the-easy-way-with-postman
How to Test and Play with Web APIs the Easy Way with Postman
June 30, 2020 - The best part about it โ€“ Postman provides collaboration features. The free tier includes exporting and importing collections of saved API requests as well as creating shared links.
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ReqRes
reqres.in โ€บ home โ€บ blog โ€บ free api for testing - real rest endpoints you can use now
Free API for Testing - Real REST Endpoints You Can Use Now | ReqRes Blog
January 22, 2026 - Get a free REST API for testing your frontend, Postman collections, or Playwright suites. No setup, real responses, with auth and persistent data.
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Postman
postman.com โ€บ explore โ€บ apis-for-beginners
APIs for Beginners | Postman API Network
Accelerate API development with Postman's all-in-one platform. Streamline collaboration and simplify the API lifecycle for faster, better results. Learn more.
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Hoppscotch
hoppscotch.io
Hoppscotch โ€ข Open source API development ecosystem ...
Helps you create requests faster, saving precious time on development.
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DEV Community
dev.to โ€บ jefferson_rosas โ€บ applying-postman-for-api-testing-real-world-examples-11p2
Applying Postman for API Testing: Real-World Examples - DEV Community
October 17, 2025 - Once installed, create a new Collection to organize your API requests. For this article, weโ€™ll test the JSONPlaceholder API, a free fake API for testing. Letโ€™s test a GET request to retrieve a list of users from JSONPlaceholder.
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Testfully
testfully.io โ€บ blog โ€บ postman-api-testing
Mastering API Testing with Postman: A Complete Guide for Developers
Postman is a tool that can be used for API testing as it allows developers to send requests, review responses and run automated tests. In this guide, I will explain how API testing in Postman works using JavaScript and provide you with the knowledge ...
Published ย  July 22, 2025