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ffmpegwasm
ffmpeg.wasm
C2020–2026
ffmpegwasm / ffmpeg.wasm

ffmpeg.wasm

FFmpeg for browser, powered by WebAssembly

34Distinct people
37Mentions
0Explicit recommenders
18KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

FFmpeg for browser, powered by WebAssembly

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 12:54:37 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year37 dated mentions

Observed mentions: 2020-09-21 00:01:46 UTC to 2026-06-05 00:01:05 UTC.

0369122020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 7 mentions; 1 submissions, 6 comments20202021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 5 mentions; 0 submissions, 5 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 11 mentions; 3 submissions, 8 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments20232024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 4 mentions; 0 submissions, 4 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 6 mentions; 0 submissions, 6 comments2026-01-01 00:00:00 UTC to 2027-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments. Incomplete calendar period.2026*

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC716
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC505
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC1138
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC202
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC404
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC606
2026 (partial)2026-01-01 00:00:00 UTC2027-01-01 00:00:00 UTC202

What Hacker News says

37 sources
Thank you FFmpeg developers and contributors! If there's anything that needs audio/video automation, I've always turned to FFmpeg, it's such a crucial and indispensible tool and so many online video tools use it and are generally a UI wrapper around this wonderful tool. TIL - there's FFmpeg.Wasm also [0]. In Jan 2024, I had used it to extract frames of 1993 anime movie in 15 minutes video segments, upscaled it using Real-ESRGAN-ncnn-vulkan [1] then recombining the output frames for final 4K upscaled anime [2]. FWIW, if I had built a UI on this workflow it could've become a tool similar to Topaz AI which is quite popular these days. [0]: https://github.com/ffmpegwasm/ffmpeg.wasm [1]: https://github.com/xinntao/Real-ESRGAN-ncnn-vulkan [2]: https://files.horizon.pics/3f6a47d0-429f-4024-a5e0-e85ceb0f6...
In FFmpeg 8.0
Great work on this - I made a terminal command similar to this (llmpeg), and was actively trying to get exactly this working - a webasm compiled version of ffmpeg that could encode in the browser. I for the life of me couldn't get the provided examples on https://github.com/ffmpegwasm/ffmpeg.wasm to run. Just for my own development curiosity, was there anything specific you had to do to get ffmpegwasm to work?
In Show HN: FFmpeg in plain English – LLM-assisted FFmpeg in the browser
I get to be one of the lucky few to learn today that ffmpeg was ported (well, transpiled) to WASM. This is more specifically built on that port: https://github.com/ffmpegwasm/ffmpeg.wasm That project has an interactive playground that essentially describes and demonstrates how it works: https://ffmpegwasm.netlify.app/playground This also means that despite being a locally hosted ffmpeg frontend, it's still slower than native ffmpeg and bound to WASM limits like file size (still a generous 2GB for images and audio, but not as viable for big video conversions). Still weird that this project doesn't seem to acknowledge that anywhere.
In Open source and self hostable/private file converter
Hi HN! I'm Ivan, the creator of this extension and with it you can now right-click any gif on Google Chrome (desktop) to share it with any of your contacts on WhatsApp Web, you can also use it to upload animated GIFs from your computer, you can even drag-and-drop MP4 files to it and they will be treated as gifs (e.g. they will loop, muted of course). A nice feature coming soon its that it will let you share non-gif images using same context menu option. To create it I had to do a bit of reverse-engineering of the existing JavaScript found at https://web.whatsapp.com/, which is actually a minified React app, I found out that it uses WebSockets to communicate with the backend but thankfully to create this extension I was able to avoid fiddling with those messages. Under the hood it uses the amazing library ffmpeg.wasm (the JS port of ffmpeg
Read the rest
): https://github.com/ffmpegwasm/ffmpeg.wasm I also made use of TypeScript, React and Vite to create this extension, using this boilerplate as starting point: https://github.com/Jonghakseo/chrome-extension-boilerplate-r... Feel free to ask any questions or any feedback you may have about it.
In Show HN: I Added a Feature to WhatsApp-Web, Animated GIFs Uploads (Chrome Ext.)
One that comes to mind is the WASM port of FFmpeg: https://github.com/ffmpegwasm/ffmpeg.wasm Another is the SQLite WASM project: https://sqlite.org/wasm/doc/trunk/index.md Also v86 for x86 machine virtualization in the web browser: https://github.com/copy/v86 A fun project is WASM-4, for building retro-style games: https://wasm4.org/ Possibly more interesting projects to be found here: https://github.com/topics/wasm https://github.com/mbasso/awesome-wasm
In WebAssembly Text Code Samples

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