MP4 to OGG Converter

How to Convert MP4 to OGG (Step-by-Step)

1. Upload Your MP4 File: Drag and drop your file or click "+ Add Files". This converter accepts MP4 and M4V, and you can queue several clips to convert with one set of settings.
2. Pick a Quality Preset or Bitrate: In Advanced Options, leave Quality Preset on "Very High" for a simple high-quality file, or use Constant Bitrate / Custom Bitrate to enter a fixed rate like 128 or 192 kbps.
3. Adjust Channels, Sample Rate, or Trim: Optionally force mono in Audio Channel, lower the Audio Sample Rate, or set a Trim range to export just part of the clip.
4. Convert and Download: Click "Convert" and download your .ogg file — no sign-up, no watermark.

This guide is for anyone who needs the audio out of an MP4 as an OGG file — most often game developers loading sound into Unity or Godot, or web authors who want a royalty-free <audio> source. Converting MP4 to OGG keeps only the audio track, re-encodes it as Ogg Vorbis, and discards the video, so the result is a small audio-only file. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. The walkthrough below expands each step.

Step 1 — Upload Your MP4 File

Drag and drop your file onto the page, or click "+ Add Files" to pick it from your computer. This converter accepts MP4 and M4V containers, and you can queue several clips at once to convert them with the same settings. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up and no watermark.

Step 2 — Pick a Quality Preset (or Set a Bitrate)

Open Advanced Options to control the output. The output uses the Ogg Vorbis codec, which Xiph.org — the codec's maintainer — describes as "patent-and-royalty-free" and in the "same competitive class" as AAC. Under File Compression you have five ways to size the file:

• Want it simple: leave Quality Preset on "Very High (Recommended)" — Vorbis runs in variable-bitrate mode and picks the rate per passage.
• Targeting a player or engine spec: use Constant Bitrate or Custom Bitrate and enter a fixed value such as 128 or 192 kbps.
• Hitting an exact upload limit: use Specific file size and type the cap in MB.

Because Vorbis is efficient, a 128 kbps OGG is roughly comparable in perceived quality to a 192 kbps MP3, so you rarely need to push the bitrate high.

Step 3 — Adjust Channels, Sample Rate, or Trim

Two more controls live in Advanced Options. Audio Channel lets you force mono (smaller file, fine for voice or a sound effect) or keep the original stereo. Audio Sample Rate defaults to the source rate; drop it to 44.1 kHz or 22.05 kHz only if you specifically need a smaller file. If you only want a slice of the clip, set the Trim start and duration so the converter exports just that range instead of the whole track.

Step 4 — Convert and Download

Click "Convert" and download your .ogg file. There is no sign-up and no watermark, and you can import the result straight into a game engine, audio editor, or web project.

Common Errors and How to Fix Them

• "The OGG plays but there is no sound" — the source MP4 had no audio track (some screen recordings and silent exports ship video only). Check the original plays with sound before converting.
• "My engine or app won't import the .ogg" — a few tools expect Ogg Vorbis specifically and reject Ogg Opus. This page outputs Vorbis by default, which is the format Unity and Godot import; if a tool still refuses it, convert to MP3 instead.
• "Safari on an older iPhone won't play the file on my site" — desktop Chrome, Firefox, and Edge have played Ogg Vorbis for years, but Safari only added full support in version 18.4 (March 2025). For broad web playback, offer an MP3 or AAC fallback alongside the OGG.
• "The file is still too big to attach" — lower the Quality Preset, switch to mono in Audio Channel, or set a Specific file size. Email services such as Gmail cap attachments at 25 MB, so a long recording may need a smaller bitrate.
• "Conversion failed on a large video" — very large MP4s can time out on upload rather than during processing. Trim to the section you need first, or compress the video before extracting its audio.

When This Doesn't Work

Audio you can't convert here is usually audio that's locked or absent. DRM-protected MP4s (purchased movies, some streaming downloads) can't be re-encoded by any general converter, and a corrupted container may fail to open at all. If your MP4 carries multiple audio tracks (for example, separate language streams), an online converter typically exports the default track only — for picking a specific stream you'll want a desktop tool like ffmpeg or VLC. And if you actually need the video kept, this is the wrong tool: use a video format converter instead of an audio extractor.

Ogg Vorbis Bitrate Reference

Vorbis runs in variable-bitrate mode by default, so these are targets rather than fixed rates. Because Vorbis is efficient, a 128 kbps OGG is roughly comparable to a 192 kbps MP3.

Ogg Vorbis vs MP3 vs Opus

Frequently Asked Questions

Does converting MP4 to OGG keep the video?

No. This is an audio-extraction conversion: it pulls the audio track out of the MP4, encodes it as Ogg Vorbis, and drops the video stream entirely. The output is an audio-only .ogg file, which is why it is dramatically smaller than the source video.

Why do game engines prefer OGG Vorbis over WAV or MP3?

Ogg Vorbis is royalty-free and compresses far smaller than uncompressed WAV, which matters for music and long clips. Godot's own documentation recommends Ogg Vorbis "for music, speech, and long sound effects" and WAV only for short, repetitive effects, because Vorbis trades a little decode CPU for much smaller files. Unity imports OGG natively as well.

Is Ogg Vorbis better quality than MP3 at the same bitrate?

At low-to-mid bitrates (roughly 96–192 kbps), Vorbis usually sounds slightly better than MP3 at the same rate, and equivalent-quality OGG files tend to run a little smaller. At high bitrates the audible difference is negligible. Spotify has historically streamed in Ogg Vorbis for exactly this size-to-quality balance.

How small will the OGG file be compared to the MP4?

Because the entire video stream is discarded, the audio-only OGG is typically a small fraction of the original — often on the order of 90% smaller for a normal video, depending on the source bitrate and length. In our testing, a 60-second 1080p MP4 with 128 kbps stereo audio produced an Ogg Vorbis file just under 1 MB.

Which audio codec does the .ogg output use, and can I get Opus instead?

By default this page outputs Ogg Vorbis, the most widely supported Ogg audio codec. The Ogg container can also carry Opus, FLAC, or Speex; if you specifically need an Opus file for low-bitrate speech, convert to Opus instead, which keeps the same Ogg framework with the newer codec.

Will the OGG play in every web browser?

Almost — global support is around 95%. Chrome, Firefox, and Edge (17+) have supported Ogg Vorbis playback for years, but Safari only added full support in version 18.4. If your audience includes older iPhones or Macs, serve an MP3 or AAC fallback in your <audio> element alongside the OGG.

Can I loop an OGG seamlessly in a game engine?

Vorbis is designed to loop without a gap, which is why engines like Godot recommend it for background music over MP3. The converter writes a clean Vorbis stream, but the loop itself is enabled in your engine's import settings, not in the file — turn on the "loop" option on the audio resource, and set a loop offset there if your engine supports one.

What sample rate does the OGG output use?

By default the converter keeps the source sample rate, which for MP4 audio is usually 48000 Hz. You can lower Audio Sample Rate to 44100 Hz or 22050 Hz to shrink a voice clip, but there is no benefit to lowering it for music — it only discards high frequencies.