Audio Merger
Audio Merger combines multiple audio clips into a single seamless track, directly in your browser. Trim each clip with a waveform editor, drag to reorder, then export as MP3 or WAV. No file is uploaded to any server — your audio never leaves your device.
Drag & drop your files here
or browse files from your deviceSelect multiple files at once
Max size limit: 100 MB per file
Specifications
Guide
Upload your audio clips
Drop two or more audio files (MP3, WAV, OGG, AAC, FLAC) onto the upload area. Use "+ Add more audio" to add files after the initial selection.
Trim, preview, and arrange
Each clip shows a waveform — drag the orange handles to trim, press Play to audition the selection, then drag the grip icon to reorder clips in the final sequence.
Merge and download
Choose MP3 or WAV as the output format, then click Merge. Download the combined file when processing finishes.
Key features
Waveform trim editor
Each clip shows a real waveform rendered from decoded audio data, making it easy to spot music beats, speech, or silence before trimming.
Per-clip playback
The play button on each clip lets you audition just the selected region so you know exactly what will be in the final mix.
Drag-to-reorder
Grab the grip handle and drag any clip to reposition it in the sequence. The numbered badge updates to reflect the new order.
MP3 and WAV output
Choose MP3 for the smallest file size or WAV for lossless quality. Both use the same one-step FFmpeg merge pipeline.
100% browser-side
Audio is processed locally using FFmpeg.wasm. Nothing is sent to a server and no account is required.
Frequently asked questions
Yes, everything runs in your browser using FFmpeg.wasm. No file is uploaded to any server, no server ever processes your audio, and your files never leave your device.
You can combine MP3, WAV, OGG, AAC, and FLAC files in any combination. Output is your choice of MP3 or WAV.
Up to 100 MB per audio clip. There is no hard limit on the number of clips, but merging many long files requires more memory and processing time.
Yes, it works on any modern browser — desktop or mobile. Processing is done entirely in the browser tab, so no app install is needed.
Yes, completely free. No signup, no account, no watermark, and no daily quota. Just open the page and start using it.
Learn more
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