Select
Drag in your own video or choose it from your device.
Private conversion in your browser
Convert video to
MP3 and audio.
Extract audio from your own videos online for free without uploading them to a server. Export as MP3, M4A or WAV.
Local processing Your files stay yours No registration
STEP 1
Choose a video
Estimated audio sizeApproximate size based on duration and selected quality
—Preparing conversion…0%
The file stays on this device.
Your audio is ready
Download Conversion happens locally. We never store or view your file.
SIMPLE FROM START TO FINISH
Video to audio in three steps
No installation, accounts or confusing menus.
Customize
Choose the format and quality that fit your needs.
Download
Save the audio when local processing is complete.
THE RIGHT FORMAT
Convert video to MP3,
M4A or WAV.
Choose a compact file for listening and sharing, or keep maximum detail for editing.
- MP3Listen anywhereMaximum compatibility and a smaller file.Recommended
- M4AMore quality in less spaceIdeal for modern devices and ecosystems.
- WAVUncompressed audioThe best option for editing and archiving.
AUDIO OUTPUT
PRIVATE BY DESIGN
Your video never leaves your device.
The conversion engine runs inside your browser. We do not need to send, store or analyze your files.
Local processing No server copies No registration
CLEAR FACTS BEFORE YOU CONVERT
Compatibility, limits and troubleshooting
These are the converter's actual operating conditions, so you can choose the right output and avoid unnecessary retries.
Formats and codecs
We accept MP4, MOV, WEBM and M4V files. A supported extension does not guarantee compatibility: the file must contain an audio track the engine can read. Common AAC, MP3, Opus and Vorbis combinations usually work.
Size and memory limits
The technical limit is 1 GB and we recommend staying below 500 MB. Processing happens in memory, so a phone may reach its limit before a computer. Shortening a long video first reduces both time and memory use.
Supported browsers
ConvertAudio is designed for current versions of Chrome, Edge, Firefox and Safari. Keep Safari open on iPhone or iPad; on older computers, close memory-heavy tabs during conversion.
If conversion fails
- Check that the original video plays sound.
- Try a shorter or smaller file.
- Update the browser and reload the page.
- If the extension is supported, inspect the audio codec.
What each format creates
MP3 uses your selected bitrate and offers broad compatibility. M4A uses AAC to save space. WAV uses uncompressed 16-bit PCM and therefore produces much larger files.
Estimate before converting
After you choose a video, we estimate the output size from its duration and selected bitrate. The final result can vary because of metadata, sample rate and source characteristics.
PRACTICAL EXAMPLES
What you can do with ConvertAudio
Start with your situation, choose a sensible setup and see roughly how large the result would be.
Class or meetingMP3 · 128 kbps
Listen to a recording without keeping the video
For a voice-focused class, 128 kbps keeps speech clear while making the audio easier to store or share.
- Real example
- 60-minute recording
- Estimated output
- About 58 MB
WhatsApp videoMP3 · 128 kbps
Save a spoken message received as video
Keep only the conversation so you can play it as audio instead of storing a much larger video copy.
- Real example
- 2-minute video
- Estimated output
- About 1.9 MB
Screen recordingM4A · 192 kbps
Extract the explanation from a tutorial
M4A provides good quality in a compact file when you want to keep the narration from a demo or presentation.
- Real example
- 15-minute tutorial
- Estimated output
- About 22 MB
Camera interviewMP3 · 192 kbps
Prepare an interview for listening
192 kbps balances clarity and size when reviewing interviews, testimonials or spoken notes recorded on camera.
- Real example
- 30-minute interview
- Estimated output
- About 43 MB
Audio editingWAV · 16-bit PCM
Create an uncompressed copy for editing
WAV is much larger, but it avoids adding another lossy step before noise cleanup, cutting or mixing.
- Real example
- 10-minute clip
- Estimated output
- About 106 MB
Long videoM4A · 128 kbps
Reduce a long recording to audio only
For a mostly spoken conference or session, 128 kbps M4A greatly reduces size without requiring music-grade quality.
- Real example
- 2-hour conference
- Estimated output
- About 115 MB
Sizes are approximate and can vary slightly because of metadata and source characteristics.
CONVERSION GUIDES
Choose the format you need
Read the instructions and compare formats before converting.
MP4 to MP3Extract compatible audio from an MP4 video.MOV to MP3Convert MOV recordings into MP3 audio.WEBM to MP3Turn browser recordings into MP3.Video to WAVGet uncompressed audio for editing.Video to M4ASave efficient, high-quality audio.Extract audioLearn which format and quality to choose.Audio from an iPhone videoExtract sound in Safari without installing apps.WhatsApp to MP3Convert the audio from a saved video.MP3 qualityCompare 128, 192, 256 and 320 kbps.Audio from an Android videoExtract sound in Chrome without installing apps.Screen recording to MP3Convert a screen capture into audio.Formats and codecsTroubleshoot video compatibility errors.Does extraction reduce audio quality?Learn when a track is copied and when it is encoded again.Mono or stereoCheck audio channels before converting interviews or music.Why 320 kbps cannot fix bad soundSeparate recording problems from export settings.
FREQUENTLY ASKED QUESTIONS
The essentials, clearly explained
Is my video uploaded to the internet?
No. The file is processed in your browser memory. Only the converter components are downloaded.
Which quality should I choose?
192 kbps is a good balance. Use 320 kbps for more detail or 128 kbps for a smaller file.
Which video formats are supported?
You can convert MP4, MOV, WEBM and M4V videos to MP3, M4A or WAV. Final compatibility also depends on the codecs inside the file.
Can I convert any video?
Use your own videos, public-domain files or content you are authorized to process. Do not use the tool to infringe third-party rights.
Why do large files take longer?
Conversion uses your device resources. Processing time depends on the video size, format and device speed.