Compress MP4 to OGG
Need smaller audio files? Converting MP4 to OGG dramatically reduces file size. A 50MB file becomes 5MB. Perfect for email, sharing, and storage.
Drop your MP4 file here or click to browse
MP4 (.mp4) · Max 20 MB
MP4 files are already compressed, but OGG can compress further at a different bitrate. The size reduction is significant for sharing, uploading, and storage.
For email attachments, 128-192kbps works well. For music sharing, use 256-320kbps. AudioUtils lets you drop your file and convert instantly. No upload to a server, no waiting.
Both MP4 and OGG are lossy formats. Each re-encode can degrade quality slightly. Convert once and keep the result. Choose the right bitrate for your use case. Higher bitrate means better quality but larger files.
Frequently Asked Questions
Why convert MP4 to OGG instead of MP3?
Three reasons: smaller files at equivalent quality (Vorbis beats MP3 by ~15–25% at 128–192 kbps), no patent licensing concerns for commercial projects (Vorbis is fully open), and native playback in every modern browser. MP3 is more universally supported on hardware (car stereos, older devices), so pick MP3 if hardware compatibility matters most.
Will the OGG sound as good as the original MP4 audio?
Almost — but not quite. The MP4's audio is already AAC (lossy), and re-encoding to Vorbis is a second lossy pass. At Q5–Q6 Vorbis (160–192 kbps), the audible difference versus the source AAC is minimal for most music, inaudible for voice. To preserve maximum quality, encode at Q7+ or use FLAC instead if file size doesn't matter.
What Vorbis quality level should I use?
Q5 (160 kbps target) is the safe default for music. Q6 (192 kbps) for high-quality music. Q3–Q4 (96–128 kbps) for voice and podcasts — Vorbis is very efficient on speech. Avoid Q0–Q2 (64–96 kbps); artifacts become audible, especially on cymbals and consonants.
Does the conversion handle MP4 with multiple audio tracks?
The converter extracts the first audio track. MP4 files with multiple language tracks or commentary tracks will only export the primary one. For multi-track extraction, use ffmpeg with the -map flag.
What happens to the video?
It's discarded. The OGG container is audio-only — there's no video stream in the output. If you need both audio and video, look for a video editor, not an audio converter.
Are there any patent or licensing issues with OGG Vorbis?
No. Vorbis is fully open-source, royalty-free, and patent-unencumbered. You can use the encoded files in commercial projects, games, and apps without licensing fees — unlike MP3 (now patent-free) and AAC (still encumbered for commercial encoding above certain thresholds).
About MP4
The most common video container format. Used by YouTube, smartphones, and cameras. Extract audio from any MP4 file instantly.
About OGG
Open-source compressed format. Better quality than MP3 at similar bitrates. Used in gaming and web applications.