
Wasmer
QuickJS
Lapce
Kata Containers
OpenCL
PostSharp
Extism is the open source, universal plug-in system. Extend all the software everywhere! Powered by WebAssembly.

Microsoft Outlook
Mailbird
eM Client
Postbox
Mailspring
Apple Mail
ProtonMail
Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Which is more popular?
Based on our record, Extism seems to be more popular. It has been mentioned 25 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | extism.org | thunderbird.net |
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What each product offers, as listed by its team.


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External articles and on-site reviews we used to compare the two products.


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Mozilla Thunderbird is an open-source email client developed by the Mozilla community. For people who like having their email offline, a range of customization options, robust data protection and privacy features, and...
Thunderbird’s interface takes a hint from Mozilla Firefox and other popular browsers and lets you open multiple emails in separate tabs. There are a lot of options to customize the look and feel of your inbox, as well...
Thunderbird is an open-source, cross-platform email suite. It is one of the best Mac mail applications that provides easy to use wizard for setting account. This software helps you to personalize the email the way you...
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 / 4 months ago
Tracking Thunderbird since Mar 2021.
When comparing Extism and Thunderbird, you can also consider the following products.


Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
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Application and Data, Build, Test, Deploy, and JavaScript Compilers
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Mailbird is the best email client for Windows 7, 8 and 10
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Lightning-fast and Powerful Code Editor written in Rust.
Compare Lapce to Extism or Thunderbird:

eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.
Compare eM Client to Extism or Thunderbird: