By Team Hypomnema · Updated October 19, 2026
Choose loop boundaries, match nearby zero crossings and blend the seam. Audition repeated playback and export a WAV loop.
Create and export
Open audio and set start, end and crossfade duration.
Optionally match nearby zero crossings, then render the loop.
Enable repeated playback to audition the seam. Download WAV when satisfied.
Scope and limits
Browser-decodable mono/stereo audio up to 40 MB and 10 minutes, decoded to 44.1 kHz. Stereo samples use substantial device memory. Crossfade is a linear tail-to-head overlap of up to five seconds and half the selection. Output duration is selection duration minus overlap; this can alter musical bar length. Nearby seam matching compares zero crossings on channel one and scores all channels; it does not detect beats or guarantee inaudibility. WAV is 16-bit PCM. Audition the result; no source audio leaves the device.
Local processing
Files and text are processed in your browser. No uploads, external font services or model calls. Nothing is saved automatically; refreshing clears the session. Downloaded files contain the content you choose to export.
Try the workflow
Keep your original documents and review the output. You can also browse all guides or contact Team Hypomnema.