How to convert MP4 to Ogg Video
- 1
Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
- 2
Convert MP4 to Ogg Video
NexMedia converts MP4 to Ogg Video on its own servers. Processing time depends on the file size and how busy the queue is.
- 3
Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About MP4
MP4 (MPEG-4 Part 14) is a container format standardised by ISO. It usually holds H.264 or H.265 video with AAC audio, and it can also carry subtitles and chapter markers.
It is the most widely supported video format: phones, browsers, smart TVs and video sites all play it.
The video inside an MP4 is almost always compressed with a lossy codec, so every re-encode loses a little quality.
Convert MP4 to Ogg Video online free, no account required — Ogg Video is an open video format with Theora video.
Change MP4 to Ogg Video without losing quality — convert MP4 to Ogg Video free in your browser.
Why is my MP4 file so large? MP4 video is already compressed with H.264 or H.265, so a lower bitrate or resolution shrinks the file at the cost of some quality.
About Ogg Video
Ogg Video (OGV) is the open Ogg container from the Xiph.Org Foundation holding Theora video, usually with Vorbis audio.
Open-source projects and Wikimedia Commons, which accepts video only in free formats.
Theora compresses less efficiently than modern codecs, and Apple devices do not play OGV natively.
Why convert video to OGV? For websites that standardise on open formats: Firefox and Chrome play it without patented codecs.
What changes when you convert MP4 to Ogg Video
- The MP4 is re-encoded into Ogg Video at the default quality settings, so the result looks close to the original but is not bit-identical.
Settings you can change
Before you convert MP4 to Ogg Video, you can adjust: Video codec, Rate control, Quality (CRF), Video bitrate, Resolution, Width, Height, Scale fit, Frame rate, Encoder preset, Audio codec, Audio bitrate, Trim start, Trim duration, and Remove metadata.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted Ogg Video file is kept for 2 hours, then deleted.
MP4 to Ogg Video: questions and answers
Does converting MP4 to Ogg Video reduce quality?
The MP4 is re-encoded into Ogg Video at the default quality settings, so the result looks close to the original but is not bit-identical.
What is the difference between MP4 and Ogg Video?
MP4 is a widely supported video container, usually holding H.264 video and AAC audio. Ogg Video is an open video format with Theora video.
Can I change the settings when converting MP4 to Ogg Video?
Before you convert MP4 to Ogg Video, you can adjust: Video codec, Rate control, Quality (CRF), Video bitrate, Resolution, Width, Height, Scale fit, Frame rate, Encoder preset, Audio codec, Audio bitrate, Trim start, Trim duration, and Remove metadata.
Do I need an account to convert MP4 to Ogg Video?
No. You can convert MP4 to Ogg Video without an account; signing in raises the file-size and daily limits.
How long is my converted Ogg Video file kept?
The Ogg Video file you convert from MP4 is kept for 2 hours, then deleted automatically.
When I convert MP4 to Ogg Video, is the video re-encoded?
The MP4 is re-encoded into Ogg Video at the default quality settings, so the result looks close to the original but is not bit-identical.
Will converting MP4 to Ogg Video change my original file?
No. The conversion reads your MP4 and writes a new Ogg Video file, leaving your original MP4 file untouched.