Audio Tools
Convert, trim, merge, and normalize audio files using a real FFmpeg engine in your browser.
Convert Audio
Convert between MP3, WAV, AAC, FLAC, OGG, M4A, AIFF, and AMR.
Trim Audio
Cut an audio file down to a selected start and end point.
Normalize Audio
Even out volume to a consistent, target loudness level.
Merge Audio
Combine multiple audio files into a single continuous track.
Split Audio
Split one audio file into several segments at chosen timestamps.
Extract Audio from Video
Pull just the audio track out of a video file.
About Audio Tools
Whether it's converting between formats for compatibility, trimming dead air from a recording, normalizing volume before publishing, or extracting a soundtrack from a video, audio editing tasks tend to be quick fixes that don't warrant installing dedicated software. This collection runs on a genuine FFmpeg build compiled to WebAssembly, the same engine widely used in professional audio and video tools, entirely inside your browser.
Why use these tools
- A real FFmpeg engine handles conversion, trimming, merging, splitting, normalization, and extraction — the same processing quality as installed desktop software.
- Waveform-based trimming and splitting make it easy to see exactly where a sound begins or ends before you cut.
- Loudness normalization brings recordings to a consistent, appropriate volume without risking distortion from a blunt volume increase.
- Nothing is uploaded to a server — audio files, including sensitive voice recordings, are processed entirely on your own device.
Frequently asked questions
What audio formats are supported?
MP3, WAV, AAC, FLAC, OGG, M4A, AIFF, and AMR are all supported for conversion and editing across this category.
Can I pull just the audio out of a video file?
Yes, Extract Audio from Video demuxes the audio track from a video file and lets you save it in your choice of output format.
Is my audio file uploaded anywhere during processing?
No. Every audio tool here runs locally using a real FFmpeg engine compiled to WebAssembly. Your file is never transmitted anywhere.
Which tool should I use to fix a recording that's too quiet or too loud?
Normalize Audio analyzes the file and adjusts it toward a consistent target loudness, which is a more reliable fix than simply applying a flat volume boost that risks distortion.
Can I combine several separate recordings into one file?
Yes, Merge Audio joins multiple files into one continuous track in whatever order you set, even if the source files are in different formats.