toolkitta.
Local file processing

Merge Audio

Arrange clips in the order you want and save one track. Add a pause between files if it helps.

Your audio is never uploaded

Join clips in order, with optional pauses and matching loudness. Edit in editor carries your settings onto the timeline.

  • Clip order & pauses
  • Preview before downloading
About Batch and Interactive Editor

How to use Interactive Editor

  1. Choose Interactive Editor to arrange your original audio, or use Edit in editor to carry your current settings across.
  2. Arrange clips across tracks, add overlaps and mix their volume. Select a clip to open its controls. Undo and Redo let you try changes.
  3. Listen, choose an output format under Export, then export and download your mix. Save a project to continue later.

Batch keeps its settings and results when you switch modes. Interactive Editor opens original audio; Edit in editor also carries the selected settings. Save a project to keep tracks editable. Export a recipe to reuse a composition in either workflow mode.

The editor supports 20 audio sources, 50 MB each, 150 MB total and 15 minutes per source, with a 30-minute composition. Batch retains its existing limits. The final editor mix uses a peak limiter; heavily boosted Trimmer cuts can sound different from Batch’s clipping.

How it works

How to merge audio

  1. Add two or more audio clips. Each may use a different supported input format.
  2. Drag clips into order or use their Up and Down buttons. The timeline shows relative clip lengths; tap a clip to preview from there. Choose a pause between clips if you want one.
  3. Choose MP3, WAV, M4A or FLAC, click Merge audio, then preview and download the joined track.

Join two cuts with one second of silence

In Audio Trimmer, use the 40-second practice WAV to save two WAV cuts: 0–10 seconds and 20–30 seconds. Add both results here and put the first cut above the second.

Leave Match loudness off, set Pause between clips to 1 second and choose WAV. Use Preview sequence, then Merge audio. The joined result should last about 21 seconds: 10 seconds, one-second pause, then 10 seconds.

Joining plays clips in sequence; it does not overlap them or remove background noise. WAV is a new 16-bit PCM export, and different source sample rates may be resampled.

Frequently asked questions

Useful details

3 answers
Can I change the order?

Yes. Drag the clips or use Up and Down. The top clip plays first.

Can I insert silence between clips?

Yes. Choose no pause, half a second, one second or two seconds between each pair.

Are files uploaded?

No. The audio stays in your browser during joining, preview and export.

More help

Guides, common conversions and useful next steps.

Edit the audio

Arrange clips, mix tracks and add fades on a local timeline.

Continue with your result

Use the action beside a finished result to send it directly, or open another tool: