App-Specific Tools

OBS Recording to MP3

Extract audio from OBS screen recordings. Convert MKV, MP4 recordings to MP3. Free, private browser-based converter.

No File Uploads

100% Private

Instant Processing

Works Offline

Drag & Drop Your Files

or click to browse • Supports up to 20 files at once

MP4

MP3

MOV

WAV

WebM

FLAC

+more

Extract Audio from OBS Recordings

OBS (Open Broadcaster Software) creates high-quality screen recordings, typically in MKV or MP4 format. When you need just the audio - commentary, voice-over, or recorded audio content - our tool extracts it as MP3 without any uploads.

Converting OBS Recordings

Locate your OBS recording in the output folder you configured (default is Videos folder). The file is typically MKV or MP4. Drag it into our converter, select MP3, and extract the audio instantly.

Why Extract Audio from OBS Recordings?

OBS recordings are full video files that can be quite large. If you only need the voice commentary, audio podcast, or sound content, extracting to MP3 gives you a much smaller, more practical file.

OBS Audio Extraction Uses

Extracting podcast audio from video recordings
Getting commentary audio from gameplay recordings
Separating audio for use in other projects
Creating audio versions of video content

Private Recording Processing

OBS recordings may contain personal content, sensitive information, or creative work. Our local processing keeps your recordings private.

How It Works

1

Select Your Files

Drag and drop or click to select audio or video files from your device.

2

Local Processing

Files are processed directly in your browser - no server uploads.

3

Download Result

Get your converted files instantly. They never leave your device.

Format Guide & Compatibility

Use this quick guide to choose the right output settings for MP3 conversion.

Use MP3 when you need maximum device and app compatibility.
If quality is critical, compare MP3 output with lossless options like WAV or FLAC.
MP3 usually delivers smaller file size for sharing and storage.
Popular workflows for this tool include MP4 -> MP3, MKV -> MP3, FLV -> MP3.
All conversion runs locally in your browser, so your source files stay on your device.

MP4 vs MP3 vs MKV vs FLV

Format	File Size	Quality	Best For
MP4	Small	Good	Everyday listening, universal sharing
MP3	Small	Good	Everyday listening, universal sharing
MKV	Small	Good	Everyday listening, universal sharing
FLV	Small	Good	Everyday listening, universal sharing

Troubleshooting

File is not supported

Re-export your source file in a common format and try again. Corrupted files may fail to decode.

Output has no audio

Your source may not contain an audio track, or it may use an uncommon codec. Try another source file to confirm.

Conversion is slow

Close heavy browser tabs and background apps. Local conversion speed depends on your device CPU and file size.

Large files fail

Split very large files into smaller parts or use a shorter clip first, then convert full media on a more powerful device.

Download did not start

Allow downloads for this site in browser settings and retry. Some blockers can prevent automatic file downloads.

Frequently Asked Questions

Why does OBS record to MKV by default?

OBS recommends MKV because it's resilient to crashes. If OBS crashes during recording, MKV files remain usable, while MP4 files can become corrupted. You can remux MKV to MP4 in OBS or convert here.

Can I convert OBS MKV files directly?

Yes! Our converter handles MKV files perfectly. You don't need to remux to MP4 first - just drag the MKV file in and extract the audio directly.

What about multi-track OBS recordings?

OBS can record multiple audio tracks (game audio, microphone, etc.). Currently, our tool extracts the primary mixed audio track. For separate tracks, use OBS's track separation feature before converting.

Will I get desktop audio and microphone?

Yes, if your OBS recording includes both, they're typically mixed in the primary audio track and will both be in the extracted MP3. Separate track recording requires different handling.

What quality should I use for voice recordings?

128kbps MP3 is excellent for voice commentary. If there's significant music or you want maximum quality, use 192-256kbps. Higher bitrates don't improve voice quality noticeably.

Ready to Convert?

Start converting your files right now. No signup, no uploads, no waiting.