Loopstitch

Loopstitch is a powerful, fully in-browser audio workstation designed to turn any track, voice clip, or sound effect into a flawless, endlessly repeating loop. By combining advanced zero-crossing alignment—which snaps boundaries to silent intervals to eliminate abrupt transient pops—with studio-grade equal-power crossfading, the editor seamlessly stitches the tail end of your selection back into the beginning without any awkward volume dips or phase cancellation. Perfect for game developers, sound designers, video editors, and music producers, Loopstitch processes all audio locally on your computer for absolute privacy and delivers pristine, uncompressed WAV exports ready to import directly into Unity, Unreal, or your favorite DAW.

Loopstitch Seamless Audio Looper

Loopstitch

Seamless crossfading Audio Loopmaker

Click here to upload or Drag & Drop your audio file (MP3, WAV, M4A, etc.)

Maximum recommended file size: 50MB

Or Quick-Load Synthesized Sound
Timeline

Interactive Waveform Stitcher

Sample Rate: -
Channels: -
🟢 Start Marker (Green) 🔴 End Marker (Red) 🟣 Blend Zone (Purple)
Drag the handles above to select the region, or scroll/drag inside the Minimap to Zoom: Zoom: 100%
Start: s
End: s

Loop Settings

Crossfade Duration 0.50 seconds

Larger durations create a smoother transition blend, while shorter ones preserve more original composition duration.

Matches negative & positive audio phases automatically

Audition Engine

Volume Meter 80%
Playback Speed

Export Processed Loop

Trimmed Selection: 0.00s
Stitch Blend Zone: 0.00s
Output Loop File: 0.00s

WAV files preserve perfect uncompressed audio quality ideal for loop players, DAW sound libraries, and games.

Loopstitch uses the Equal-Power Constant-Gain transition algorithm. Operates entirely in-browser with zero server uploads.

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