How it works

  1. Drop your audio file. MP3, WAV, FLAC, AIFF, OGG or M4A up to 500 MB — the tempo is detected and a beat grid is laid over the waveform.
  2. Frame your loop. Drag the handles — they snap to the beat — or use the quick-size buttons for whole bars; the readout shows the selection in bars and seconds.
  3. Preview and export. Play the selection in loop mode until the seam disappears, then export it once or repeated up to 200 times (10 min in total).

Features

  • Tempo-locked beat grid. BPM (to 0.01), beat phase and the bar's first beat are detected automatically: a loop of N bars is exactly N bars long, to the sample. The grid BPM stays editable if detection gets it wrong.
  • Clean seams. The click-free seam option aligns the join channel by channel and smooths it over 5 ms without changing the length; an optional longer crossfade suits pads and reverbs.
  • Bar-sized selections. Quick-size buttons frame exactly 1, 2, 4 or more bars in one click.
  • Repeat export. Export a single pass or the loop repeated 2 to 200 times (10 min in total), as WAV at the source's quality.

FAQ

Is the loop maker free?

Yes. Without an account you get 2 free uses per day across AudioKit's free tools; with a free account, 5 per day. Framing and previewing the loop is free: a use is only counted when you export. AudioKit Premium removes the daily limit.

Is my audio file uploaded to a server?

No. The file is decoded, analyzed and rendered entirely in your browser (Web Audio API + ffmpeg.wasm) and never leaves your machine. The only network call is a tiny anonymous counter that tracks your daily free quota.

Which audio formats are supported?

MP3, WAV, FLAC, AIFF, OGG and M4A files up to 500 MB. The loop is exported as WAV, at the source's sample rate and bit depth: it repeats without a gap in any software. MP3 is still offered, but the encoder adds a short silence at the start.

How do I make a loop perfectly seamless?

Three things betray a loop: cutting off the beat, a click at the seam, and a level jump. The tool handles all three — handles snap to the detected beat grid (whole bars via the quick-size buttons), the click-free seam option shifts the whole loop by a few samples to the cleanest join and smooths it over 5 ms (the length stays exact to the sample), and the optional longer crossfade helps on pads and reverbs. Preview in loop mode until you can't hear the seam.

Can I export the loop repeated several times?

Yes. Export the loop as a single pass, or repeated from 2 up to 200 times (10 min in total at most) to get a long bed for practice, video or DJ sets without re-importing it. And if the tempo detection is off, the grid BPM and offset stay editable by hand.