Free tools
Audio joiner: combine audio files online
This free audio joiner and MP3 merger puts two or more local files in the order you choose and downloads one MP3. Joining runs in your browser, with no signup or upload.
Drop audio or video files or click to choose
Free · no signup · runs in your browser · nothing uploads
Drag to reorder, or use the arrow buttons on each file.
This is a video file. The tool uses its audio, so the result is audio only.
Try a speaker-labeled preview of up to 5 minutes from your audio or video before creating an account, then get another free preview of your first upload in the app.
Get 30 free minutesWhy is this free? Hushscript runs it entirely in your browser. No server processes your file, so there's nothing to charge for.
How to combine MP3 files and other audio
Add two or more local audio or video files. Drag their handles or use the up and down buttons to set the order, then select Join and download joined.mp3. The first file in the list plays first. Remove a file before joining if you added it by mistake.
Combine audio clips in sequence
This audio merger online is useful when an interview, lecture or voice memo was recorded in parts and you want one file to share. This tool joins the parts end to end. It does not mix simultaneous tracks, fade between clips or trim gaps. To remove silence at a seam, cut the relevant clip first with the audio cutter.
MP3 output and source formats
The picker accepts common audio formats, including MP3, WAV, M4A, FLAC and OGG, as well as video files, which contribute only their audio. Joining depends on whether the available browser conversion path can read each file’s codec. Every source is re-encoded to MP3 with a 192 kbps target before joining; actual bitrate can vary with source sample rate and encoder. The result is one MP3 rather than a lossless copy. Listen to the download if a seam or sound quality matters.
Merge MP3 online without an upload
This MP3 joiner runs in your browser. Your files stay on your device for this tool, and you do not need to sign up or pay to download the result. Processing time and the size of files you can handle depend on your device’s memory and the source codecs.
Want a transcript instead?
Use the free transcription preview to try a short sample. If you choose full audio transcription, Hushscript uploads prepared audio and requires an account. In the app, you can also upload separate recordings together and merge them into one transcript, with speaker labels if you turn on speaker detection. Eligible personal accounts can receive 30 free minutes once after successful card verification, or with their first purchase if not already granted.
Updated:
Frequently asked questions
How do I merge audio files online?
Add at least two audio files, arrange them in the order you want, select Join, then download joined.mp3. The files play one after another in the resulting MP3.
Can I choose the order when I combine MP3 or other audio files?
Yes. Drag a file by its handle, or use its up and down buttons. The joiner follows the list from top to bottom; you can also remove a file before joining.
Is this audio merger free, and does it upload my files?
Joining is free, needs no account, and processes your files in your browser. The separate transcription service uploads prepared audio if you choose to use it.
Which audio formats can I join?
The picker accepts common audio formats such as MP3, WAV, M4A, FLAC and OGG, and video files too; a video contributes only its audio. Each file still needs a codec the available browser conversion path can read. The download is always an MP3.
Will joining change the sound quality?
Yes, it may. Every source, including MP3 inputs, gets re-encoded into one MP3 output (see above for the bitrate target), and that cannot restore detail missing from the originals.
Can I mix tracks or add a crossfade?
No. This tool places clips back-to-back in the chosen order. It does not overlap them, add transitions or remove silence.
Can I transcribe the joined MP3?
Yes. Try the free transcription preview first, or go straight to full transcription, which requires an account and uploads prepared audio; speaker labels are available when speaker detection is selected.
Need a transcript of your recording?
Preview up to 5 minutes before you create an account, and a new personal account gets a free preview of its first upload in the app. Full transcription needs an account and minutes; eligible personal accounts get 30 free minutes once, after card verification or with a first purchase. No subscription.
Try a free transcription preview