Merge any number of audio files into one: drop them, set the order, download a single lossless WAV. Mixed formats and sample rates welcome. Local processing, nothing uploads.
Drop audio files here, or click to choose
MP3, WAV, AAC/M4A, OGG - any mix, decoded locally
Files are joined sample-exactly with no added gap, so the seams are as clean as your sources: trim leading and trailing silence off each file first with the audio trimmer and the result plays as one continuous piece. Level mismatches between sources are the other seam-killer - run each file through the volume normalizer at the same target before joining and the merged file sits at one consistent loudness.
Drop two or more files (any mix of MP3, WAV, AAC, OGG), arrange them with the up/down arrows, and download - you get a single WAV containing all files back to back. Decoding and joining happen in your browser, so nothing uploads and large files merge as fast as your machine allows.
Yes. Every file is decoded to raw audio at a common sample rate first, so a 44.1 kHz MP3 joins cleanly onto a 48 kHz WAV. Mono files are automatically doubled into both channels when joined with stereo material.
Browsers decode compressed formats but cannot encode MP3, so this tool exports uncompressed WAV - lossless from the decode onward and accepted everywhere. Merge first, convert later if you need a smaller file; the order costs you nothing in quality.
No - files are butted together sample-exactly. If a source file itself ends with silence, that silence carries over; trim it off first with the audio trimmer for a tight join.
No. Everything runs locally with the Web Audio API - the page works offline once loaded, and your audio never leaves the device.