Merge MP3, WAV, OGG and FLAC files into one track — free, private, instant
The best free audio joiner online. Combine MP3, WAV, OGG and FLAC files directly in your browser with no uploads and no registration.
Privacy First: All processing runs locally in your browser. Your files never leave your device.
Drag and drop files here or click to add
Select multiple files or add them one by one
Supported: MP3, WAV, OGG, FLAC | Max file size: 50MB | Max duration: 5 minutes
Files to merge (0)
Use arrows to reorder, × to remove files.
Processing happens locally for privacy.
Browser based processing keeps your audio local.
Merge clips in seconds without uploads.
No registration, no limits, no watermarks.
MP3, WAV, OGG, FLAC.
The most common job for an audio joiner: merging two or more MP3 files into one. Drop your MP3s in, arrange the order, keep MP3 as the output format and click merge — the combined file downloads instantly. There's no re-upload step, no queue and no watermark, because everything runs locally in your browser.
Working only with MP3s? The dedicated merge MP3 tool comes preset for exactly this.
Building a workout mix, a wedding playlist that plays as one file, or a seamless pre-show loop? Use the crossfade transition (1–3 seconds) so songs blend into each other instead of cutting hard. The MP3 joiner preset applies a 2-second crossfade by default — the sweet spot for music.
This tool is a true audio combiner, not just an MP3 joiner: mix formats freely — join an MP3 voiceover with a WAV music bed and a FLAC effect, and export the result in whichever format you need. WAV in, WAV out stays lossless; see the WAV merger for studio workflows.
| Input formats | Output formats | Lossless path |
|---|---|---|
| MP3, WAV, OGG, FLAC (mixable) | MP3, WAV, FLAC | WAV→WAV, FLAC→FLAC |
Joining a voiceover to a music bed is the first half of making a jingle — the second half is levels, effects and a professional mix. If that's where you're heading, skip the manual work: our AI jingle maker combines an AI voiceover, music and sound effects into a broadcast-ready jingle in about a minute, and DJs can grab free DJ drops to layer into their sets.
| This tool (browser) | Audacity / desktop DAW | Other online joiners | |
|---|---|---|---|
| Price | Free, no watermark | Free–$$$ | Free tier with limits |
| Install / signup | None | Install required | Often requires account |
| Upload to server | Never — local processing | N/A | Usually uploads files |
| Crossfades | 1–3s built in | Manual | Rarely |
| Mixed formats (MP3+WAV+FLAC) | Yes | Yes | Often MP3 only |
| Speed for a 5-song merge | Seconds | Minutes | Upload + queue time |
Yes, this is a completely free audio joiner online. No signup, no subscription, and no watermarks on your output files.
No. All merging happens locally in your browser using WebAssembly. Your audio files never leave your device, which keeps them completely private.
You can merge MP3, WAV, OGG, and FLAC files. You can also mix formats — for example, join an MP3 and a WAV together and export as MP3.
Yes. Use the move up and move down buttons to arrange your audio files in any order before merging.
Upload your MP3 files using the file picker above, arrange them in the order you want, choose MP3 as the output format, and click Merge Audio. Your joined MP3 will download automatically.
Yes. This tool is a free WAV joiner as well as an MP3 joiner. Upload your WAV files, set the order, and export as WAV or convert to MP3 in one step.
Yes. Upload your FLAC files and this free audio joiner will merge them into a single FLAC, WAV, or MP3 file. FLAC quality is preserved when exporting to FLAC.
You can merge as many files as you need. There is no hard limit on the number of tracks, though very long sessions may take a moment to process.
Yes. Choose from direct join, crossfade (1s, 2s, or 3s), or a silence gap (0.5s, 1s, or 2s) between each track using the Transition option before merging.
This tool is one of the best free online audio merger tools in 2026 because it runs entirely in your browser, supports MP3, WAV, OGG and FLAC, offers crossfade transitions, and requires no account or download.
Turn your idea into a finished jingle, radio ID, or promo. Make one yourself in seconds with our AI Jingle Maker — or have a custom one handcrafted for you.