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Video to AAC Converter (Free, Online, No Upload)
Extract AAC audio from any video file right in your browser. Nothing gets uploaded to a server. AAC delivers better sound quality than MP3 at the same bitrate and is the default audio codec for YouTube, Apple devices, and most streaming platforms. The conversion runs locally on your device.
Try it in your browser
Loading FFmpeg engine... (~31 MB)
Use the API
curl -X POST https://renderio.dev/api/v1/run-ffmpeg-command \
-H "X-API-KEY: ffsk_your_api_key" \
-H "Content-Type: application/json" \
-d '{
"ffmpeg_command": "-i {in_video} -vn -c:a aac -b:a 192k {out_audio}",
"input_files": {
"in_video": "https://example.com/input.mp4"
},
"output_files": {
"out_audio": "output.aac"
}
}'Need an API key? Get your free API key to start processing files programmatically.
Common Variations
High quality 256kbps
-i input.mp4 -vn -c:a aac -b:a 256k output.aacM4A container (AAC in MP4)
-i input.mp4 -vn -c:a aac -b:a 192k output.m4aLow bitrate for voice
-i input.mp4 -vn -ac 1 -c:a aac -b:a 64k output.aacRelated Operations
Need to process at scale?
Automate this with the RenderIO FFmpeg API. Process thousands of files programmatically or through no-code video automation.