Fileverses

AVI to VP9 WebM conversion

Re-encode AVI video as a new VP9 WebM file.

Queue eligible AVI videos for sequential server-side processing. Fileverses maps the first video stream and adds Opus audio only when the source provides audio.

  • VP9 video
  • Conditional Opus audio
  • First video stream

Processed by our self-hosted conversion engine

Supported files

AVI in. VP9 WebM out.

AVIWEBM

The fixed profile maps the first video stream and optional first audio stream, removes source metadata and chapters, then encodes VP9 with Opus when audio exists.

How it works

Create WebM downloads from AVI video

01

Select AVI videos

Add non-empty .avi files up to 100 MB that host FFmpeg can read and that contain a video stream.

02

Process the queue

Jobs run sequentially through the fixed profile, which maps the first video and optional first audio stream.

03

Inspect and download WebM

Preview a completed WebM where browser codec support permits, then download the separately named file.

WebM processing facts

A new encode with conditional audio.

This is not a container swap. Video is re-encoded as VP9; audio-bearing sources receive Opus audio, while a video-only AVI remains video-only.

Convert AVI to WebM
01

Readable AVI video is needed

Each upload must be a non-empty .avi file up to 100 MB with a video stream that host FFmpeg can read.

02

VP9 and conditional Opus are re-encoded

The output has newly encoded VP9 video. Opus audio is included only if the source has a first audio stream; it is not guaranteed otherwise.

03

Only first streams are mapped

Alternate video or audio tracks, subtitles, and attachments are not retained. Source metadata and chapters are removed.

04

Fixed conversion profile

There are no trim, crop, resize, codec, bitrate, frame-rate, quality, or stream-selection controls, and output size is not fixed.

AVI to WebM FAQ

AVI and WebM questions

What AVI files can I convert to WebM?+

Use a non-empty .avi file up to 100 MB that host FFmpeg can read and that contains a video stream.

What codecs are in the new WebM?+

The profile encodes VP9 video and encodes Opus audio only when the source has an audio stream to map.

Will every result have sound?+

No. A video-only AVI produces a video-only WebM; audio is conditional on the source.

Which streams are kept?+

Only the first video stream and optional first audio stream are mapped. Alternate tracks, subtitles, and attachments are not preserved.

Does this retain AVI metadata or chapters?+

No. Source metadata and chapters are removed before the new WebM is written.

Can I convert more than one AVI file?+

Yes. Files are processed sequentially and each successful conversion has an individual download.

Can I resize or choose VP9 quality?+

No. The server uses a fixed profile with no trim, resize, codec, bitrate, frame-rate, quality, or stream-selection settings.