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Convert Opus to AMR

Free and instant — your Opus files are processed securely on our servers and deleted right after conversion. Nothing is stored.

How to convert Opus to AMR

  1. Step 01

    Add your Opus files

    Drop them into the box above or click to browse. You can add several files at once.

  2. Step 02

    Conversion starts instantly

    Your file is sent to our servers, converted and deleted right away — no sign-up, no queue, no waiting.

  3. Step 03

    Download your AMR files

    Save each file individually or grab them all at once. Done.

Why convert Opus to AMR?

Convert Opus to AMR quickly and privately — every file is processed on our servers with ffmpeg and deleted immediately afterward, so you get a AMR file that plays wherever AMR is expected.

Opus vs AMR at a glance

Opus is the modern voice and streaming codec behind WhatsApp voice notes and Discord calls — excellent quality at tiny file sizes, but not widely supported by standalone music players or older devices. AMR is the codec built for phone calls — optimized for speech at very low bit rates, but rarely playable outside dedicated voicemail or call-recording apps.

PropertyOpusAMR
Extension.opus.amr
Full nameOpus Interactive Audio CodecAdaptive Multi-Rate
First released20121999
Developed byXiph.Org / IETF3GPP / Ericsson
CompressionLossyLossy
TransparencyNoNo
AnimationNoNo
Best forvoice messages from WhatsApp, Telegram and Discord, and low-latency streamingold voicemails and voice recordings from feature phones and early smartphones

Opus to AMR — frequently asked questions

Is this Opus to AMR converter really free?

Yes — completely free, with no sign-up, no watermarks and no daily limits.

Will I lose quality converting to AMR?

AMR uses lossy compression, so the image is re-encoded at high quality (92%). For photos the difference is practically invisible; for text-heavy graphics or logos, a lossless format like PNG preserves sharp edges better.

Is the conversion private?

Audio conversion runs on our servers with ffmpeg — your file is deleted immediately and never stored.

Related conversions

Need the reverse? Convert AMR to OpusExplore the AMR converter