How to merge audio files
- Add your audio files. Drag two or more files onto the box above or tap it to choose them. You can add more files at any time.
- Put them in order. The files are joined from top to bottom. Drag a file by its handle, or use the up and down arrows, to change the order. Each row shows the file size and length.
- Choose what goes between files. Under Between files, pick Back to back, Silence or Crossfade. For silence and crossfade, enter the length in seconds, from 0.1 to 10.
- Choose a format. Pick MP3 (with a quality from 128 to 320 kbps) or uncompressed WAV under Save as.
- Press Merge and download. A progress bar follows the work. Listen to the merged track on the page, then download it.
Features
- Drag-and-drop ordering with a handle for mouse and touch, plus arrow buttons for keyboard and screen reader users.
- Three ways to join: back to back, with a pause of silence, or with a smooth crossfade.
- Mix any formats – MP3, M4A, WAV, OGG, FLAC and more in the same merge.
- Automatic matching of sample rates and mono or stereo, so there are no speed or pitch glitches at the joins.
- MP3 or WAV output, with a choice of MP3 bitrate.
- Running total of the file count and the expected length, updated as you add files or change the join.
- Friendly errors that name the exact file that has no sound, can't be read or is too short for the crossfade.
Why use Fileora to merge audio
Joining audio online usually means uploading every file, waiting, and downloading the result again. With Fileora, the whole job happens in your browser. Your recordings stay private, there's no account, no watermark and no added sound, and you can merge as often as you like. The audio engine downloads once (about 31 MB) and is then cached, so later merges start right away.
It also saves you a step: you don't need to convert files to the same format first. Drop in a WAV from a recorder, an M4A voice memo from an iPhone and an MP3 from a laptop, and they come out as one clean track.
Ideas for merging
Put a podcast together from an intro, the main recording and an outro. Join the separate voice notes of a long message into one file that's easier to share. Combine the chapters of a recorded lesson with two seconds of silence in between. Or build a short mix of your own songs with a three-second crossfade so each one blends into the next.
Preparing your clips
For the cleanest result, cut each clip to the right length first with Trim Audio, which can also add a fade in and fade out. If a part you need is the soundtrack of a video, get it out with Extract Audio from Video and then add it to the list here. Choose WAV when you'll keep editing the merged file, and MP3 when you want a file that is ready to share and plays everywhere.