Free Online Stereo Panner
Pan a track to the left, the right, or anywhere between.
What is this tool
AudioToolKit pans audio online for free, in your browser. Move a stereo track fully left, fully right, or to any position in between — -1 is full left, 0 is center, +1 is full right. Use it to place instruments in a mix, build a wide arrangement, or center a voice for a mixdown. The panned file downloads as MP3 or WAV, and processing never leaves your device.
Drag and drop your files here
or
MP3, WAV, M4A, AAC, OGG, FLAC, AIFF, AIF, OPUS, WMA, AMR — up to 25 MB per file
-1 left, 0 center, 1 right.
Output
Panned MP3 or WAV
Accepted formats
.mp3, .wav, .m4a, .aac, .ogg, .flac, .aiff, .aif, .opus, .wma, .amr
Why use this free tool
Panning places a source in the stereo field. Push a guitar hard left and a synth hard right to build a wide arrangement, or center a voice for a mixdown.
How does the free stereo panner work?
- 1
Upload the track.
- 2
Set the pan: -1 is full left, 0 center, 1 full right.
- 3
Press Process and download.
Frequently asked questions
Does it work on mono files?
Mono has no stereo image, so panning has no audible effect on it.
Is this the same as auto-pan?
No — this sets a fixed position. Auto Panner animates the position over time.
Local or server?
Local, in your browser.
Related tools
More answers in the Help Center.