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Extism is the open source, universal plug-in system. Extend all the software everywhere! Powered by WebAssembly.

Which is more popular?
Postman might be a bit more popular than Extism. We know about 30 links to it since March 2021 and only 25 links to Extism.
Website, pricing, platforms and company facts side by side.
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| Website | postman.com | extism.org |
| Pricing | ||
| Platforms | — | |
| Company | Startup from India | — |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Extism yet.
Walkthroughs and reviews on video.
POST/CON 2018 workshop in review: Running Postman Collections
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Postman and Extism. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Forking Existing Collections: One of Postman’s unique strengths is the ability to fork collections created by others. Developers can easily duplicate publicly available Postman collections, modifying them to fit their...
As the digital landscape evolves, the significance of APIs (Application Programming Interfaces) has surged, facilitating seamless communication between various software applications. Postman has been a leading tool in...
- Focus on specific needs: Does the tool excel at SOAP APIs or cater to microservices? - Resource usage: Does it handle complex projects without impacting system performance? - Script reusability: Does it allow for...
We have no reviews of Extism yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Postman (postman.com) is a comprehensive API platform that goes beyond mocking, offering a full suite for API development, testing, and monitoring. With its mock server feature, Postman enables teams to simulate responses for various... - Source: dev.to / almost 2 years ago
Postman is a widely used tool for API testing and interaction. Its "Mock Servers" feature lets you create a mock version of your API, returning specific responses for testing. While useful, Postman may lack advanced mock server... - Source: dev.to / almost 2 years ago
Postman is a widely adopted tool for API design and development, offering an intuitive interface for creating, testing, and documenting APIs. It simplifies the API design process, allowing architects to quickly prototype and refine their... - Source: dev.to / about 2 years ago
Technically WASI 0.1, but I used it (via Extism[0]) to implement a simple login library[1] that works in Rust, Go, and Node. Would be trivial to add other lanugages supported by Extism. Overall I loved the dev experience. [0]:... - Source: Hacker News / 3 months ago
I tinkered with https://extism.org and basically the use case is that they suggest, namely you can extend software in another programming language but without having to setup a container or VMs on the client. They "just" run the code in... - Source: Hacker News / 3 months ago
Check out https://extism.org, it is built for those kinds of use cases. However I think WASI and components could enhance it. - Source: Hacker News / 3 months ago
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