Audio tool

Convert FLAC Files to Opus on Your Device

Convert FLAC to Opus in your browser for low-latency delivery. The source remains on your device throughout local processing.

Route FLAC → OPUS

or drop here · up to 500 MB

Max 50 MB per file

Preview (optional)

When your browser supports it, your audio plays here. You can still convert your file if preview does not load.

Ready

Use upload name

Local conversion competes with other open apps for processor time during this FLAC-to-Opus job.
Long FLAC files consume more memory and take longer to decode.
Inspect the Opus file in the exact player or editor that will receive it.

Opus serves voice chat, streaming, and efficient web audio, whereas FLAC commonly serves music archives, mastering, and lossless playback.
For FLAC-to-Opus delivery, plan for limited support in older editing tools.
After leaving FLAC, the receiving app must support the streams encoded inside Opus, not only its extension.

FLAC to Opus taking too long? Close other demanding apps, then test a short sample before the full file.
Opus converted from FLAC not opening? Test a compatible player and inspect the output streams.
Match Opus resolution, rate, channels, and codec to the published delivery rules.

When does FLAC to Opus conversion make sense?

It is useful when FLAC media created for lossless distribution must enter a Opus system designed for low-latency delivery.

Where is the FLAC source processed?

The browser prepares Opus from FLAC on this device instead of sending the source to a remote conversion server.

How can I approve Opus converted from FLAC?

Test the Opus file in the receiving app and compare duration, channels and loudness with the FLAC source.

Quick use cases