Convert MOD to WebM — Free Online Converter
Convert Amiga Module (.mod) to WebM Video (.webm) online for free. Fast, secure audio conversion with no watermarks or registration....
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How to Convert
Upload your .mod file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .webm file when it's ready.
About MOD to WebM Conversion
MOD is the Commodore Amiga's tracker music format from 1987, where Karsten Obarski's Ultimate Soundtracker introduced sample-based music sequencing to home computers. A MOD file bundles up to 31 digitized instrument samples (8-bit PCM) with pattern-based composition data, allowing the playback engine to construct multi-channel music in real-time by pitching and mixing those samples according to the pattern grid. This compact, self-contained approach to music storage was essential when a full Amiga game had to fit on a single 880 KB floppy disk, and it directly spawned the demoscene — a global community of programmers and musicians creating demos, intros, and music disks that pushed hardware to its creative limits.
WebM is Google's open-source multimedia container built on the Matroska format, designed specifically for web delivery. It typically contains VP8/VP9 video and Vorbis/Opus audio. Converting MOD to WebM produces an audio-only WebM file — Opus or Vorbis encoded audio with no video track. WebM is the native multimedia format of the modern web, supported in every major browser (Chrome, Firefox, Edge, Opera) and optimized for streaming delivery.
Why Convert MOD to WebM?
WebM with Opus audio is the most efficient open-source format for web delivery. For websites hosting rendered tracker music — demoscene archives, retro gaming sites, chiptune labels — WebM/Opus provides the best quality-per-byte ratio of any web-native format. The HTML5 audio element plays WebM natively in Chrome, Firefox, and Edge without plugins, making it ideal for browser-based music players and interactive web experiences.
Web developers building progressive web apps, browser-based games, or interactive audio experiences prefer WebM because it's royalty-free and supported by the Web Audio API. Converting MOD to WebM allows tracker music to be used in JavaScript-powered music players, web-based demos (the demoscene's evolution into browser-based art), and any web application where open-source codec licensing matters for legal compliance.
Common Use Cases
- Hosting rendered tracker music on web-based demoscene archives with native browser playback
- Building browser-based music players for chiptune and tracker music collections using WebM/Opus
- Creating audio assets from MOD files for web-based games using the Web Audio API
- Embedding tracker music in progressive web apps where open-source codecs are required
- Providing bandwidth-efficient rendered MOD audio for low-bandwidth web delivery scenarios
How It Works
FFmpeg renders the MOD file through its module decoder, synthesizing the tracker data into continuous stereo PCM audio. The PCM output is encoded as Opus (preferred for WebM) or Vorbis using the respective encoder libraries. Opus encoding applies CELT (Constrained-Energy Lapped Transform) for music content, with optional SILK mode for speech-like passages. The encoded audio is muxed into a WebM container — a subset of the Matroska EBML format restricted to VP8/VP9/AV1 video codecs and Vorbis/Opus audio codecs. Since no video track is present, the WebM file contains only an audio track element with proper codec initialization data. The container supports seeking via cue points and is optimized for progressive download and streaming delivery.
Quality & Performance
WebM with Opus encoding offers outstanding quality for MOD content. Opus at 96 kbps is virtually transparent for tracker music, and at 128 kbps it's indistinguishable from lossless. Opus excels at the frequency range where MOD content lives (the 8-bit source samples produce limited high-frequency content), achieving better efficiency than AAC or Vorbis at equivalent bitrates. For extremely bandwidth-constrained scenarios, Opus maintains intelligible music quality down to 32 kbps — far below what AAC or MP3 can manage gracefully. The WebM container adds zero quality impact as a transparent wrapper.
Device Compatibility
| Device | MOD | WebM |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No | Native |
Recommended Settings by Platform
Spotify
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Apple Music
Resolution: N/A
Bitrate: 256 kbps
AAC format required
SoundCloud
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Podcast
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
Tips for Best Results
- 1Use Opus encoding at 96-128 kbps for the optimal quality-to-bandwidth ratio in web delivery
- 2Provide an MP4/AAC fallback for Safari compatibility alongside the primary WebM file
- 3Enable the WebM cue points for proper seeking support in browser-based audio players
- 4For progressive web apps, cache WebM audio files via service workers for offline tracker music playback
- 5Use the HTML5 audio element with source alternatives: <source src='track.webm'> with <source src='track.mp4'> fallback
MOD to WebM delivers tracker music in the web's native open-source format. With Opus encoding, it provides the best quality-per-byte ratio for web delivery, making it the optimal format for browser-based tracker music distribution.