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Convert AMR to AAC
Convert AMR to AAC format — 100% browser-based, no upload required.
2 cores · low tier
Drop a file here or click to select
Format will be auto-detected
About these formats
Source
AMR
Adaptive Multi-Rate AudioSpeech codec optimized for voice recording. Widely used in mobile phones for voice notes and MMS audio.
Best for
Voice recordingPhone audioMMS messagesLow-bandwidth speech
Advantages
- + Very small files
- + Optimized for speech
- + Mobile standard
Limitations
- − Speech only (poor music)
- − Low quality
- − Limited sample rates
Target
AAC
Advanced Audio CodingSuccessor to MP3 with better quality at lower bitrates. Default audio for Apple devices, YouTube, and most streaming services.
Best for
StreamingApple devicesMobile audioYouTube
Advantages
- + Better than MP3 per bitrate
- + Streaming optimized
- + Apple/YouTube standard
Limitations
- − Patent-encumbered
- − Slightly less universal than MP3