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

Camtasia
ShareX
BandiCam
Snagit
XSplit
Loom
Screencast-O-Matic
Free and open source software for video recording and live streaming for Mac, Windows and Linux.

Which is more popular?
Based on our record, OBS Studio seems to be a lot more popular than Extism. While we know about 1070 links to OBS Studio, we've tracked only 25 mentions of Extism.
Website, pricing, platforms and company facts side by side.
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Share your experience with using Extism and OBS Studio. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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OBS Studio – Open-source powerhouse with scene layering and high-bitrate output; ideal for streamers or educators who want webcam plus slides. Setup takes patience.
OBS Studio — The power user’s dream. Layer webcam shots over slides, stream to Twitch, or capture at 60 fps. Amazing range, but be ready to read a tutorial or two.
Choosing the right free screen-recording tool boils down to your daily routine. If you work in short bursts and value instant sharing, ScreenRec is tough to beat. Need layered scenes or live streaming? OBS is waiting....
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
I used https://www.shotcut.org/ to edit a few videos, it has many effects. For live streaming https://obsproject.com/ but I don't remember too much. - Source: Hacker News / 10 months ago
FWIW, OBS is ~150 MB, not an electron app and actually open source. https://obsproject.com/. - Source: Hacker News / over 1 year ago
Https://magicmusicvisuals.com/ combined with https://obsproject.com/. And possibly OBS all by itself. - Source: Hacker News / over 1 year ago
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