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Convert Opus to AAC

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 AAC

  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 AAC files

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

Why convert Opus to AAC?

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

Opus vs AAC 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. AAC is the successor to MP3 — better quality at the same bit rate, used by Apple Music, YouTube and most streaming platforms.

PropertyOpusAAC
Extension.opus.aac, .m4a
Full nameOpus Interactive Audio CodecAdvanced Audio Coding
First released20121997
Developed byXiph.Org / IETFISO/IEC JTC 1
CompressionLossyLossy
TransparencyNoNo
AnimationNoNo
Best forvoice messages from WhatsApp, Telegram and Discord, and low-latency streamingmusic on Apple devices, streaming platforms and YouTube

Opus to AAC — frequently asked questions

Is this Opus to AAC converter really free?

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

Will I lose quality converting to AAC?

AAC 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 AAC to OpusExplore the AAC converter