How to Combine Songs Into One File

To combine songs into one file, open a free audio joiner, add your tracks, drag them into the order you want, and export a single continuous audio file. It runs entirely in your browser — no account, no upload step, and your audio never leaves your device — so it works well for a playlist you want as one track, a short DJ set, a run of podcast segments, or a workout mix. This guide is the plain, practical version: add, order, export. It focuses on getting one finished file out the door; the deeper questions about quality and timing come later, with a link to a fuller guide when you need it.

What you'll need

• Two or more audio files in any common format — MP3, WAV, M4A, Opus, and the usual others all work. You need at least two; the tool prompts you to add more if you only have one.
• A browser. That's the whole toolchain. There's nothing to install and nothing to sign up for.
• No upload. The files are read on your own machine. They aren't sent to a server, so how many songs you can queue up depends mainly on your device's memory rather than any fixed limit.

Steps to combine songs into one file

1. Open the joiner and add your files

Go to the audio joiner. You'll see a dropzone that reads "Drop or upload your audio files here." You can drag your songs straight onto it, or click Add track files and pick them from a file dialog. You can select several at once, and you can keep adding more afterward — the queue grows as you go.

Each file you add shows up as a numbered row with its filename, its size in MB, and its duration in mm:ss. That row list is your running order, top to bottom.

2. Put the tracks in the order you want

The number on each row is its position in the final file. Every row has up and down arrow buttons — use them to move a track earlier or later until the sequence reads the way you want it to play. If you added something by mistake, the trash button on its row removes it.

Take a moment here, because order is the one creative decision in the whole process. For a workout mix you might build from warm-up to peak; for a podcast you'd line up intro, segments, then outro. Once the numbers are right, you're basically done deciding.

3. Know that tracks join back-to-back

The joiner places each track immediately after the one before it — no silence in between and no crossfade. For a continuous mix or a gapless album side, that's exactly what you want. But if you'd like a breath of space between songs — say, a beat of silence between podcast segments — there's no gap or spacing setting to reach for. The honest workaround is to add a short silent audio clip as its own track in the queue, positioned wherever you want the pause. You can also trim or top-and-tail your tracks first with a free audio cutter so each one starts and ends exactly where you'd like before it's joined.

4. Check the merged-file estimate

Above the export controls you'll see a "Merged file estimation" line showing the combined total duration and how many segments will be joined. It's a quick sanity check — if the number of segments or the total length looks off, you probably have a track too many, a track missing, or one in the wrong slot. Fix it now, before you export.

5. Pick your export format

Choose the output with the format selector: WAV (the default — lossless, larger files), MP3, or Opus. For the lossy formats you can also pick a bitrate. WAV is the safe choice if this file is going into more editing later; MP3 is the friendliest for sharing and playback on almost anything. If you're unsure which to keep, the rundown of audio file formats walks through the trade-offs.

6. Join and download

Click Join & Download Audio. The button shows "Merging tracks…" while it stitches everything together, then an "Encoding… %" step if you chose a lossy format. Because this tool is plain Web Audio — no AI model to fetch — it's quick, and when it's done the single combined file downloads on its own, named something like joined_<timestamp>.wav. That's your one file.

When your files are different formats or sample rates

You don't have to convert anything first. The joiner reads the first file in your list and uses its sample rate and channel count as the target, then automatically resamples the other tracks to match and up-mixes any mono track to stereo. So a queue mixing MP3s, WAVs, and different sample rates just works — the "consistent format" part is handled for you.

That's the short version, and it's enough for most mixes. If you're combining recordings from very different sources — a phone memo next to a studio export, for example — and you want to understand where subtle quality or timing issues can creep in, read how to avoid quality and sync issues for the full picture.

Troubleshooting

There's no gap between my songs. That's by design — tracks join back-to-back with no silence. Use the silent-clip workaround from step 3 if you want a pause, or trim each song first so its lead-in and tail are already how you want them.

One song is much louder than the others. The joiner combines your files as-is; it doesn't level them against each other, so a loud track stays loud and a quiet one stays quiet. If the jump is jarring, normalize the tracks to a consistent loudness before you join them. The guide on merging files cleanly covers loudness matching in more detail.

A file won't add, or it's the wrong type. Make sure it's actually an audio file — a video file (like an MP4) won't join here. If you've got audio trapped inside a video, pull the audio out first, then add that. And remember you need at least two files in the queue before the tool will merge anything.

Related

If you want the songs to play at the same time — layered over each other rather than one after another — that's a different job. See how to make a mashup from two songs for layering instead of sequencing. For more step-by-step audio guides, browse the how-to hub.

Frequently asked questions

Can I combine MP3 and WAV files together?

Yes. You can mix MP3, WAV, and other common formats in the same queue. The joiner uses the first file's sample rate and channel count as the target, then automatically resamples the rest and up-mixes mono tracks to stereo so everything lines up. You don't need to convert your files to a matching format beforehand — just add them and pick one output format for the finished file.

Is there a limit to how many songs I can combine?

There's no fixed cap built into the tool. Because everything runs on your own device and nothing is uploaded, the practical limit is your computer's available memory — a handful of songs is effortless, and a long playlist works fine on most machines. If a very large queue ever feels sluggish, you can join it in a couple of batches and then combine those.

Can I add a gap or crossfade between the songs?

Not directly — the joiner places tracks back-to-back with no silence and no crossfade. If you want a pause, add a short silent audio clip as its own track wherever the gap should go. For a smooth crossfade, you'd overlap and blend the tracks in a dedicated editor first; the joiner itself only sequences whole files end to end.

Do the songs get uploaded anywhere?

No. The joiner runs entirely in your browser, so your audio never leaves your device — the files are read locally, merged locally, and the finished file downloads straight back to you. There's no account and no server-side processing. That's also why it's fast and why you can combine as many files as your own device's memory allows.