MP3 for broad playback
Re-encode the first audio track as MP3 with selectable bitrate, sample rate and channels.
The audio you need.
Your choice of format.
Make a playable MP3, or keep compatible AAC and Opus audio without re-encoding. Start with a local video.
No media uploads Free, no signup
MP4 · MOV · WebMMP3 or original audio
See what you can make START WITH YOUR FILE
VIDEOMP3
Local conversionYour media stays on your device.
Private by defaultChoose your outputOriginal AAC → M4A · Opus → .opus
Your file. Your device.
LOCAL PROCESSINGThe selected video stays on this device. Audio probing and extraction run in the same browser-local worker without sending media to an API.
A SIMPLE WORKFLOW
How to extract audio from a video
Choose. Convert. Keep.
- 01
Choose a compatible video
Select one supported MP4, MOV or WebM file that contains an audio track.
- 02
Choose MP3 or Original audio
MP3 re-encodes the track and offers optional start/end times in Advanced settings when the video length is available. Original audio copies the complete compatible AAC or Opus track; trimming is unavailable in that mode.
- 03
Extract and save
Run the local extraction and download the M4A, Ogg Opus or MP3 result.
BUILT AROUND YOUR AUDIO
Choose the output that fits the job
Extract the first audio track from a compatible MP4, MOV or WebM video. Create an MP3, or copy supported AAC and Opus audio without re-encoding.
Original audio without another encode
Stream copy compatible AAC or Opus audio so extraction adds no new re-encoding loss.
Private browser-local workflow
Probe, extraction, preview and download remain on your device and require no account.
Follow the iPhone file and download stepsKNOW YOUR FORMAT
Verified extraction matrix
- MP4 or MOV with AAC: MP3 re-encode or original AAC copied into M4A.
- WebM with Opus: MP3 re-encode or original Opus copied into an Ogg .opus file.
- The first audio track is used; V1 does not include a track selector.
- Original audio is available only when the detected codec is AAC or Opus.
- INPUT
- MP4 · MOV · WebM
- OUTPUT
- MP3 or original audio
- STARTING POINT
- Choose your outputOriginal AAC → M4A · Opus → .opus
- INPUT SOFT LIMIT
- 500 MiB desktop200 MiB on mobile. Available memory may be lower.
LESS VIDEO. MORE POSSIBILITY.
What do you need
from your video?
Copy compatible original audio, or make an MP3 for a different player. The right choice depends on your next step.
THE RESULT
Keep the AAC. Leave the video behind.
Save the existing narration from an MP4 presentation as M4A, without putting the compressed audio through another encode.
Settings & steps
- Original audio
- AAC → M4A
Choose the MP4 and select Original audio as the output. Extract, preview and download the M4A when the detected first audio track is AAC.
Stream copy avoids another encode; AAC remains compressed audio.
Tested input: H.264 video + AAC audio
THE RESULT
Keep your WebM audio in Opus
Separate the original Opus track from a compatible WebM recording for a destination that already accepts Opus audio.
Settings & steps
- Original audio
- Opus → Ogg .opus
Select the WebM and choose Original audio. A compatible first Opus track is copied into an Ogg .opus file for download.
Your receiving app must support Ogg Opus. Vorbis is not supported in this mode.
Tested input: VP9 video + Opus audio
THE RESULT
Make an MP3 for the player you use
When the next app needs MP3, turn a compatible MOV interview into a listening copy with your chosen bitrate.
Settings & steps
- MP3 output
- 192 kbps
Choose MP3 rather than Original audio. Keep 192 kbps or select another available bitrate, then convert, preview and download.
AAC to MP3 adds a lossy encode; it does not improve source quality.
Tested input: H.264 video + AAC audio
Your file. Three steps. Done.
Choose a video. Convert. Download your audio.
Illustrative workflows. Use a local file you own or have permission to process.
UNDER THE EXTENSION
Stream copy and audio containers
M4A contains copied AAC audio
For a detected AAC track, Original audio uses stream copy and places those same compressed audio packets in an M4A audio container.
The .opus result uses Ogg
For a detected Opus track, Original audio copies the track into an Ogg container with the .opus extension.
MAKE AN INFORMED CHOICE
Original audio versus MP3
Original audio uses stream copy, so it avoids additional re-encoding loss. It does not make an already compressed source lossless.
MP3 mode re-encodes audio and exposes bitrate, sample-rate and channel controls for compatibility needs.
The output is determined from the actual first audio track codec, not from the video filename or container extension.
BEFORE YOU START
Audio extraction limits
- Only the first audio track is extracted; selecting another track is outside V1.
- Not every audio codec supports Original audio. Unsupported codecs return a clear error and remain available for MP3 retry.
- Files without an audio track cannot produce an output.
- The soft limit is 500 MiB on desktop and 200 MiB on mobile, while available browser memory can be lower.
What is the difference between MP3 and Original audio?
MP3 re-encodes the audio using the selected settings. Original audio stream-copies a compatible AAC or Opus track without another encode.
Is Original audio lossless?
No. Stream copy preserves the existing compressed track without adding re-encoding loss, but it does not make AAC or Opus lossless.
Why does AAC download as M4A?
M4A is the audio container used here for the copied AAC track. The AAC packets are not converted to MP3 in Original audio mode.
What happens when Original audio is unsupported?
The converter keeps the file selected and asks you to choose MP3. It does not silently fall back or disguise a re-encoded file as original audio.