Free online audio joiner

Put several audio clips in order and join them into one file. Move clips up or down, choose MP3 or WAV, and download the combined audio.

Drop audio files here

2–20 files · max 10 min combined · Up to 2 GB on a computer

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Playback order — use the arrows to move a clip.

    2–20 files, up to 10 minutes and 200 MB combined. Clips play end to end with no crossfade. Output is 48 kHz stereo.

    Joining audio…

    Runs on your device. Keep this tab open.

    Done on your device

    Download

    ChatCut opens in a new tab with your request. Add your file there.

    • No file upload
    • No sign-up
    • Free local processing

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    Why ChatCut

    Why use this audio joiner

    • Choose the order

      Move clips up and down in the numbered playback list before joining.

    • Combine audio formats

      Mix input containers such as MP3 and WAV when the browser can decode each source.

    • End-to-end playback

      Each clip starts after the previous one. No crossfade or intentional gap is added.

    • Match the audio format

      Each clip is converted to 48 kHz stereo so the final file uses one consistent format.

    • Merge on your device

      The clips stay in this browser tab throughout the merge. No account or server upload is needed.

    • One result to review

      Listen to the complete recording and download one MP3 or WAV file.

    How it works

    How to merge clips with the audio joiner

    1. 01

      Select your clips

      Choose 2–20 audio files together, up to 10 minutes and 200 MB combined.

    2. 02

      Arrange and choose format

      Use the arrows to set playback order, then choose MP3 or WAV.

    3. 03

      Join and listen

      Run the merge, play the result and download your combined file.

    Learn

    Audio joiner guide: prepare one continuous recording

    Joining puts clips in sequence

    To merge audio here, choose the clips together and arrange them in the numbered list. Each clip plays after the previous one, making a single recording from separate takes. This is useful for a lesson recorded in sections or a narration with a separate introduction. It does not mix several sounds at the same time. If you want music underneath speech, keep those sources separate and use a timeline with overlapping tracks instead of joining them end to end.

    Prepare the edges before combining

    No crossfade or intentional gap is added between clips. Silence already recorded at the beginning or end of a file still plays, and different recording volumes can remain audible across a join. Listen to the last few seconds of each clip and the first few seconds of the next one. Trim unnecessary pauses before joining if you want a shorter handoff. Matching sample rates during conversion does not automatically match loudness or repair an abrupt change in background noise.

    Different inputs become one output format

    Supported MP3, WAV, and other decodable inputs can be combined because each clip is first converted to 48 kHz stereo PCM audio. The output then becomes one MP3 at 192 kbps or an uncompressed WAV. This is not a direct copy of the original compressed packets. MP3 adds lossy encoding, and WAV does not undo quality loss already in the source clips. Choose the output accepted by the next app, and retain your source files for later editing.

    Check the combined limits and playback order

    Select between two and twenty files, with no more than ten minutes of audio and 200 MB in total. These are combined limits, not allowances for every individual clip. Use Move up and Move down to review the sequence before starting. After the join, listen across each boundary and check the complete result before downloading. If you need to replace a take or change the order later, the original files let you rebuild the sequence without cutting apart the merged copy.

    Use cases

    When an audio joiner helps

    • Podcast segments

      Combine an introduction, conversation and closing into one listening file.

    • Narration pieces

      Arrange separate voiceover takes in the right order before a video edit.

    • Recorded lessons

      Join short lesson recordings for continuous listening or transcription.

    Keep editing

    Build a complete timeline in ChatCut

    Add the merged file in ChatCut to trim it or combine it with video. For more control, add the original clips and arrange them on a timeline. Manual editing and export do not use credits; built-in Agent messages do.

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    FAQ

    Audio joiner FAQ

    How do I merge audio files?

    Select at least two clips together, arrange their order, pick MP3 or WAV and select Join audio. The clips play one after another in the result.

    Can I combine MP3 and WAV?

    Yes, if the browser can decode both files. Clips are converted to 48 kHz stereo before joining.

    How do I reorder the clips?

    Use Move up or Move down beside a clip. The numbered playback list shows the order used for the final file.

    Does this mix music over speech?

    No. This joins files end to end. To overlap speech and music, arrange them on separate tracks in ChatCut.

    Are crossfades added?

    No. The clips meet directly, and silence already present in a clip remains. Trim unwanted silence first if needed.

    Is joining lossless?

    Audio is resampled to 48 kHz stereo. MP3 adds lossy encoding; WAV avoids a lossy final encode but cannot recover source quality.

    How many clips can I join?

    Select 2–20 files totaling no more than 10 minutes and 200 MB. The limits help keep browser memory usage manageable.

    Is this audio merger free?

    Yes. The local merge does not need an account, upload or credits. The optional ChatCut Agent step uses credits separately.