CONVERT / LOCAL
Media Converter
change the container.
Convert video and audio without sending the source file to a server.
Choose one media file, pick an output, and tune only what matters. Processing happens in this tab using FFmpeg WebAssembly.
Your media stays localChoose output
Conversion settings
MP4 · WebM · MOV · MKV · AVI · MPEG · TS · 3GP · OGV · FLV · M4V
AUDIOMP3 · WAV · AAC · M4A · OGG · Opus · FLAC · WMA · AIFF · AC3
IMAGEGIF · animated WebP · PNG frame · JPG frame
FREE TO USE / NO ADS / NO LOGIN REQUIRED
Convert video and audio formats on your device
Convert video, audio and animated media between supported formats, including MP4, WebM, MOV, MP3, WAV and GIF. The media converter runs in your browser using a locally loaded FFmpeg engine and does not add a watermark.
- Convert video to MP4, WebM, MOV, GIF and other supported formats
- Convert audio to MP3, WAV, AAC, FLAC, OGG and other supported formats
- Adjust video resolution, quality, frame rate and audio settings
- Download converted files without a GOATiM watermark
Choose a local file, select an output format and convert it. The conversion engine downloads on first use. Supported inputs and outputs vary by codec; large files need sufficient device memory.
How to convert video to MP4 or audio to MP3
- Choose a video or audio file from your device.
- Select the output format and review the quality, resolution and audio options that apply to it.
- Allow the conversion engine to load, start conversion and download the result.
A filename extension alone does not determine compatibility: the codecs inside the file must be supported. Large conversions need enough device memory.
Popular ways to use Media Converter
- Convert a video to MP4, WebM, MOV or an animated GIF
- Extract or convert audio to MP3, WAV, AAC, FLAC or OGG
- Change video size, frame rate or quality before downloading the converted file
- Convert a supported video into a more convenient playback format.
- Convert audio to MP3, WAV or another supported output.
How processing and privacy work
Media conversion runs in your browser. The page downloads the FFmpeg WebAssembly engine when needed, but your source and converted media are not uploaded to GOATiM or another processing service.