Queue AVI files
Add one or more non-empty .avi videos up to 100 MB each. Each row keeps a playable source preview.
Free online AVI to MP4 converter
Convert AVI videos into new MP4 files.
Queue AVI videos, create a fresh H.264 MP4 from the first video stream and optional first audio stream, then preview and download every result.
- Files not stored
- Queue AVI files
- 100 MB each
Processed by our self-hosted conversion engine
Supported files
AVI in. MP4 out.
AVIMP4
Add AVI video files up to 100 MB each. Fileverses creates a new MP4 result with this route’s documented conversion profile; review the completed download before using it elsewhere.
How it works
One queue. A new MP4 file.
Create MP4 copies
Start the queue to have FFmpeg encode the first video stream as H.264 and the optional first audio stream as AAC in a new fast-start MP4.
Check and download
Review the completed MP4 preview, then download the separately named result for that queue item.
Limits and quality
A new MP4 file, with source-specific trade-offs.
Every successful result is a newly encoded fast-start MP4 with H.264 video and AAC audio when the AVI has a readable first audio stream. It is not a container-only remux.
Convert AVI nowAVI sources only
This route accepts non-empty .avi files up to 100 MB each. The selected source must also be readable by the host FFmpeg installation.
Fresh H.264 and AAC encode
Every successful result is a newly encoded fast-start MP4 with H.264 video and AAC audio when the AVI has a readable first audio stream. It is not a container-only remux.
First streams, fixed settings
The profile maps only the first video stream and optional first audio stream, removes source metadata, and has no subtitle or alternate-track selection, trimming, resizing, bitrate, codec, or quality controls.
AVI to MP4 FAQ
Questions, answered.
What AVI files can I convert to MP4?+−
This route accepts non-empty .avi files up to 100 MB each. The host FFmpeg installation must also be able to read the selected source.
What does the converted MP4 contain?+−
A successful result is a fast-start MP4 with newly encoded H.264 video. If the selected AVI has a readable first audio stream, the result also includes newly encoded AAC audio.
Does AVI to MP4 preserve every stream?+−
No. The profile uses only the first video stream and optional first audio stream. It does not promise subtitles, attachments, chapters, alternate tracks, source metadata, or original-codec retention.
Can I convert several AVI videos at once?+−
Yes. Add multiple supported AVI files to the queue. The browser submits real conversions sequentially, and each successful row receives its own MP4 preview and download button.
Will the MP4 be smaller or look identical?+−
Not necessarily. The route makes a new H.264 and optional AAC encode at fixed settings, so final size and visual or audio detail vary with the source. Check the result before use.
Can I choose subtitles, trim, or change resolution?+−
No. This route has no editing, stream-selection, resizing, subtitle, quality, bitrate, or codec controls.
Is every MP4 player guaranteed to support the result?+−
No. The route writes H.264 video and optional AAC audio in MP4, but destination and player support still varies. Test the downloaded file in your required software.
Are files retained after conversion?+−
Each source and output exists in a temporary server directory only while its job runs. The directory is removed whether conversion succeeds or fails.