Merge Audio Files
Combine MP3, WAV, M4A, OGG, and FLAC into one file. Drop them in order — they join with no gaps.
Good for stitching together an interview that was recorded in two halves.
Drop files here
or click to browse · paste from clipboard
Accepts .MP3, .M4A, .WAV, .OGG, .FLAC, .AAC · Up to 1,000 files
How it works
Drop your files
Drag and drop, click to browse, or paste from clipboard. Up to 1,000 files at once.
Choose settings
Adjust quality, format, and other options to match your needs.
Click Convert
Everything runs in your browser via WebAssembly. Merge Audio Files happens locally — no server involved.
Download
Download files individually or grab all at once as a ZIP.
Frequently asked questions
Files are joined in the order you drop them. If the order matters, arrange them before dropping. There is no reorder UI — drop the files in the correct sequence.
Yes. Drop MP3, WAV, M4A, OGG, FLAC, and AAC files together. All inputs are re-encoded to your chosen output format, so mixed formats work fine.
Typically no — ffmpeg concatenates the audio samples directly with no padding. If your source files have natural silence at their starts or ends, that silence is preserved. To remove intro/outro silence before merging, trim each file first with the Audio Trimmer.
MP3 is the most compatible choice for podcasts, sharing, and music. WAV and FLAC are lossless — use them if you plan to edit the merged file further.