Merge and combine MP3, WAV, M4A and OGG files into one track - free, in your browser, with no signup or watermark. Add as many clips as you like, drag to reorder them, then join them back to back, with a silent gap or a smooth crossfade, and keep the original quality. Great for merging podcast segments, audiobook chapters, voice recordings or a seamless DJ playlist. Need to trim a clip before joining? Use our MP3 Cutter first, or pull audio from a video with the Video to MP3 converter.
or click to browse - add two or more files
Drag and drop or click to select two or more files. Supports MP3, WAV, OGG, M4A, FLAC and more. You can also extract audio from a video first.
Drag tracks to reorder them, then choose gapless, a silent gap, or a crossfade. Optionally normalize the loudness so every track is balanced.
Pick your format and quality, then click Merge & Download. Preview the combined track before saving it.
Add files in any order and rearrange them with drag and drop or arrow buttons before merging.
Join tracks back to back, insert a silent gap, or blend them with a smooth crossfade transition.
Even out the volume of tracks recorded at different levels so the whole mix plays consistently.
Combine MP3, WAV, M4A, OGG and FLAC together - even different sample rates merge cleanly.
To combine MP3s with no audible quality loss, set the Quality option to Auto (match source) or 320 kbps - this re-encodes only once at the original bitrate or higher. For absolutely zero loss, export the merged file as WAV. Avoid merging files that have already been through several low-bitrate conversions; if a track is poor quality going in, clean or re-rip it first.
You can combine an MP3, a WAV and an M4A in the same job - the tool re-encodes every input to a common sample rate before joining, so there are no clicks or glitches at the seams. Just add the files, pick one output format, and merge. There is no need to convert everything to the same type beforehand.
Choose the Crossfade transition and a length of 2-5 seconds so each track fades smoothly into the next, with no silence or hard cuts - ideal for party mixes, workout playlists and continuous DJ sets. Turn on loudness normalization so tracks recorded at different volumes play at a consistent level across the whole mix.
Add your intro, each recorded segment and the outro in order, choose a small silent gap (about 0.5-1 second) between them for natural pacing, and export as MP3. Trim dead air or mistakes from each part first with the MP3 Cutter, then bring the cleaned parts here to assemble the finished episode.
Add the chapter files in reading order and join them back to back (no gap, no crossfade) so the book plays straight through on any device or car stereo. Tick Also keep tracks individually if you also want the converted single chapters in the ZIP alongside the combined file.
Select the Silent gap transition and set the length in seconds. The same gap is inserted between every track, which is useful for spoken-word collections, language-learning audio, meditation segments or leaving breathing room between songs without overlapping them.
Merge several phone voice memos, interview parts or lecture recordings into one continuous file for easy archiving or sharing. Need the source audio from a clip first? Grab it with the Video to MP3 converter or the SoundCloud Downloader, then merge the results here.
Set the Quality option to Auto (match source) or 320 kbps so the merged file is encoded at the original bitrate or higher, or export as WAV for zero quality loss. Quality only drops noticeably if you merge files that were already heavily compressed, or re-encode the same file repeatedly.
Yes. You can combine MP3, WAV, M4A, OGG and FLAC in the same job. Every file is re-encoded to a common sample rate before joining, so mixed formats and sample rates merge cleanly with no clicks or gaps at the joins. Pick one output format and merge.
Choose the Silent gap transition and set the length in seconds. The same gap is added between every track. Pick Crossfade instead if you want each track to blend smoothly into the next, or back to back for no gap at all.
Add the chapter files in reading order, join them back to back with no gap or crossfade, and export as MP3 or M4A so the book plays straight through. Tick Also keep tracks individually to also receive each converted chapter in the ZIP alongside the combined file.
Add your tracks in order, choose the Crossfade transition with a 2-5 second length, and turn on loudness normalization so every track plays at a consistent volume. The end of each song fades into the start of the next for a continuous mix with no silence or hard cuts.
Yes. After adding files, use the up and down arrows on each track to set the exact order they play in the merged file. The order in the list is the order in the final audio.
Each file can be up to 100MB and you can merge up to 20 files per job. Most merges finish in a few seconds. Need to shorten a file first? Use the MP3 Cutter.
Merging is processed server-side with FFmpeg so different formats join cleanly, then every uploaded and generated file is automatically deleted within 4 hours. We never keep or share your audio.
Yes - it is 100% free with no watermarks, no registration and no daily limits. Bookmark ConvertICO.com and merge as many files as you need.