Do I need to install anything to use this tool?

This tool only generates the FFmpeg command — no files are uploaded here. You need FFmpeg installed on your machine to run the command. On macOS use "brew install ffmpeg"; on Ubuntu/Debian use "sudo apt install ffmpeg"; on Windows download a build from ffmpeg.org.

What bitrate should I choose?

For speech or podcasts, 48–64 kbps Opus sounds excellent. For music, 96–128 kbps is transparent for most listeners. At 192 kbps Opus is effectively lossless-quality for typical music. Opus is roughly twice as efficient as MP3 or Vorbis at the same bitrate.

Will the output file have an .opus or .ogg extension?

Either works. An .opus extension is preferred and most clearly signals the codec. You can also use .ogg as the container extension — FFmpeg will still encode with the Opus codec when you pass -c:a libopus. Choose the extension that your target player or platform expects.

Why is Opus better than OGG Vorbis?

OGG is a container format; Vorbis is the codec inside it. Opus is a newer codec that delivers better quality at lower bitrates, has lower latency (useful for real-time audio), and is an open standard supported natively by all major browsers and platforms. Vorbis is no longer actively developed.

Can I convert multiple files at once?

The tool generates a single-file command. To batch-convert, you can wrap the command in a shell loop. For example in Bash: for f in *.ogg; do ffmpeg -i "$f" -c:a libopus -b:a 128k "${f%.ogg}.opus"; done

Does this tool upload my audio files?

No. Everything runs in your browser. No files are uploaded, no data is sent to any server. The command generator is pure JavaScript.

OGG to Opus Converter

Enter your filename and bitrate to generate a ready-to-run FFmpeg command for converting OGG Vorbis to Opus audio.

Conversion Settings

Source filename

Include the .ogg extension.

Output filename

Use .opus or .ogg as the output extension.

Target bitrate: 128 kbps

16 kbps 320 kbps

Use VBR (Variable Bit Rate) — recommended

Add -y flag (overwrite output without prompt)

FFmpeg Command

What each flag does

Bitrate Quick Reference

Bitrate	Best for	Quality
32–48 kbps	VoIP, voice-only	Good for speech
64–96 kbps	Podcasts, audiobooks	Excellent for speech
128 kbps	Music streaming	Transparent for most
192 kbps	High-quality music	Near-lossless
256–320 kbps	Archival / mastering	Overkill for Opus

Summary

This tool generates a ready-to-run FFmpeg command that converts any OGG Vorbis audio file to the Opus format. Opus offers significantly better audio quality at the same bitrate compared to Vorbis, making it ideal for streaming, VoIP, and modern web applications. Simply enter your source filename, target filename, and desired bitrate — the command is built instantly and can be copied with one click.

How it works

Enter the name of your source OGG file (e.g. recording.ogg).
Enter the desired output filename (e.g. recording.opus).
Choose a target bitrate — 64 kbps is fine for speech; 128–192 kbps for music.
The FFmpeg command is generated instantly in the output panel.
Click "Copy Command" and paste it into your terminal to run the conversion.

Use cases

Convert podcast or voice recordings from OGG Vorbis to the more efficient Opus codec.
Prepare audio files for web delivery — browsers widely support Opus in WebM/Ogg containers.
Reduce file size for music libraries without audible quality loss by targeting 128 kbps Opus.
Batch-convert game audio assets stored as OGG to Opus for smaller distribution packages.
Migrate legacy OGG Vorbis archives to the modern Opus standard for long-term storage.
Generate FFmpeg commands for CI/CD pipelines that transcode audio during build steps.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu