100% On-Device Processing
Free & Fast OPUS to MP4 File Converter Offline
Convert your files easily from opus to mp4 with our fast and reliable file converter.
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Settings
Video Settings
Choose a codec to encode or compress the video stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding video, choose "Copy" (not recommended).
Subtitle Settings
Pick the ideal option for your subtitles: use 'Upload' to add your own files, or choose 'Copy' to replicate subtitles from the original video.
Audio Settings
Select a codec to encode or compress the audio stream. The "Auto" option is recommended as it uses the most common codec. Alternatively, you can choose "Copy" to avoid re-encoding the audio, though this is not advised.
Trim Settings
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On-Device
Universal opus to mp4 converter
Affordable
Affordable opus to mp4 converter solution