Related links

General info

• Official wiki
• WebM container documentation: [1], [2], [3]
• Official VP9 encoding guide
• Another official VP9 encoding guide
• FFmpeg VP9 encoding guide
• FFmpeg VP8 encoding guide
• 4chan wiki page on WebM
• 4chan encoding guide, image
• 8chan encoding guide, old versions: [1], [2]
• Anon encoding guide
• 2ch encoding guide (in russian)
• Repo and wiki with a lot of WebM-related information (in russian)
• WebM FAQ (in russian)
• Uncyclo with some info about VP9
• Thread at 8chan with guides
• Thread at containerchan with guides
• Thread at doom9
• Introduction into WebM/VP9 by Google
• State of multimedia support in browsers
• Subreddit about WebM software and related topics

WebM tools

CLI

• WebM encoder in Python (this repo; also has GUI mode for cut/crop)
• Another WebM encoder in Python
• WebM encoder in Bash (can also record screen and has GUI mode for cut/crop)
• Another WebM encoder in Bash (also has mpv wrapper)
• Yet another WebM encoder in Bash, similar project
• WebM encoder in Zsh
• WebM encoder in C# (can also download from YouTube)
• WebM encoder in Perl (can split input file into parts and encode them separately to speedup VP9 encoding)
• Another WebM encoder in Perl
• WebM encoder in Batch (can split input file into parts and encode them separately to speedup VP9 encoding)
• Another WebM encoder in Batch
• Yet another WebM encoder in Batch
• WebM album art encoder in Batch
• Another WebM album art encoder in Batch
• Fit audio to limit in Bash, analogue in Zsh
• WebM screen recorder in Bash
• AutoHotkey script
• Various video tools, some more, by libvpx devs

GUI

• WebM encoder in JavaScript (also embeds youtube-dl and mpv; guide in russian)
• WebM encoder in C++
• Another WebM encoder in C++
• WebM encoder in C# (original project)
• Another WebM encoder in C#
• Yet another WebM encoder in C#
• Yet yet another WebM encoder in C#
• Yet yet yet another WebM encoder in C#
• WebM encoder in Lua
• Another WebM encoder in Lua
• WebM encoder in Java
• WebM encoder in Python
• WebM YouTube downloader in JavaScript (guide in russian)
• WebM YouTube downloader in C++
• WebM screen recorder in C#
• Another WebM screen recorder in C#

Web

• WebM Batch script generator
• Watch WebMs in Edge
• Watch WebMs in Safari, similar project
• Show WebM title on 2ch, also implemented in Dollchan Extension Tools and 4chan-x
• Add WebM support to 0chan
• NPAPI VLC WebM plugin
• WebM plugin for Adobe products
• WebM extension for Firefox (help, dev)
• 2ch WebM player, repo
• Another 2ch WebM player
• Yet another 2ch WebM player
• WebM screamer detector
• Another WebM screamer detector

Web nonfree

• WebM plugin for Internet Explorer
• 2ch WebM player
• Another 2ch WebM player

Online

• Client-side (VP8/Opus)

Online nonfree

• Server-side 1 (VP8/Vorbis)
• Server-side 2 (VP8/Vorbis)
• Server-side 3 (VP8/Vorbis)
• Server-side 4 (VP8/Vorbis)
• Server-side 5 (VP8, grabs video from YouTube, applies watermark)
• WebM album art encoder (VP8/Opus)

Nonfree

• XMedia Recode
• Hybrid
• FFQueue
• WebM encoder (Windows and OS X support)
• WebM screen recorder
• VP8 analyzer in Java
• Commercial WebM tools
• VP9 OTT Encoder (shareware)
• Eve VP9 encoder (shareware)
• Two Orioles VP9 analyzer (shareware)
• CodecVisa VP8/VP9 analyzer (shareware)
• Intel Video Pro Analyzer (can show VP9 internals, shareware)
• Intel Stress Bitstreams and Encoder 2017 (can debug and stress test VP9, shareware)

Other

• List of FFmpeg wrappers
• SVT-VP9
• VP8 implementations
• GPU-accelerated VP9 encoder (libvpx fork, see also issue #2)
• GPU-accelerated VP8 encoder (libvpx fork, see also discussion)
• VP9 analyzer in Rust (draft)