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QuickJS
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Lapce
Productivity Power Tools
Medium
Extism is the open source, universal plug-in system. Extend all the software everywhere! Powered by WebAssembly.

Contentful
Sanity.io
Directus
WordPress
Payload CMS
Prismic
Ghost
Manage any content. Anywhere. The leading open-source headless CMS. 100% JavaScript / TypeScript and fully customizable.

Which is more popular?
Based on our record, Strapi seems to be a lot more popular than Extism. While we know about 342 links to Strapi, we've tracked only 25 mentions of Extism.
Website, pricing, platforms and company facts side by side.
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| Website | extism.org | strapi.io |
| Pricing | ||
| Company | โ | Startup from France |
| Listed in |
What each product offers, as listed by its team.


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


No analysis of Extism yet.
Overall verdict
Why this product is good
Recommended for
Strapi is recommended for developers and development teams looking for a flexible and customizable CMS solution, particularly those who need a headless CMS that integrates easily with modern frontend frameworks like React, Vue, or Angular. It's also suitable for organizations that prefer an open-source solution they can modify according to their needs.
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How often each product is chosen within a category, 0โ100% relative to the other.


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


We have no reviews of Extism yet. Be the first one to post
Strapi is one of the most used headless CMS platforms. Strapi is an open-source headless CMS that is customizable and easy to use. Companies such as Walmart, eBay, Toyota, IBM use this platform.
Strapi is an open-source Node.js headless content management system, which means that the entire codebase is available on GitHub and thrives on contributors. Strapi generates a working RESTful API or uses GraphQL for...
Strapi is a popular, flexible, and open-source headless CMS that enables us to create rich digital experiences. Strapi provides REST and GraphQL APIs developers can use to access the content stored in its repository.
Recommendations tracked on public social media and blogs since March 2021.


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
Instead of rendering pages on the server, a headless CMS operates solely as a database and editing dashboard. The content is entered into the editor interface and stored as raw data. Consequently, your frontend application fetches this... - Source: dev.to / about 1 month ago
That's not true anymore. In 2026, developers are switching away from Strapi at a pace that's hard to ignore โ not because it got worse, but because the alternatives got dramatically better. - Source: dev.to / 2 months ago
CMS content. Headless CMS responses from Strapi, Sanity, or Contentful are deeply nested. Type them once; let the compiler catch template bugs. - Source: dev.to / 5 months ago
When comparing Extism and Strapi, you can also consider the following products.


You don't need another CMS. You need a better way to manage content โ unified, structured, and ready to deploy to any digital channel.
Compare Contentful to Extism or Strapi:


Sanity.io a platform for structured content that comes with an open-source editor that you can customize with React.js.
Compare Sanity.io to Extism or Strapi:

Application and Data, Build, Test, Deploy, and JavaScript Compilers
Compare QuickJS to Extism or Strapi:
