Extend audio duration
Repeat short audio into a longer usable clip.
Loop Audio
Loop and export an audio file online for free
Repeat common audio 2, 3, or 5 times with an optional 0.5 or 1-second gap and create one MP3.
Repeat 2 / 3 / 5 timesOptional loop gapsOne combined MP3 fileLocal browser processing
Choose audio file
Upload an audio file
or
Supported formats: MP3, M4A, WAV, FLAC, AAC, OGG, WEBM
Large audio files may take longer to process in the browser.
Your audio is processed locally in this browser. The file is not uploaded to FastToolAI servers.
Good for background music
Create looped sound for videos, practice, and demos.
Control loop count
Choose repeat times and create a separate result file.
Local browser processing
Process files in your browser to reduce upload and privacy risks.
How to Use Audio Tool
1、Upload audio
Choose the audio clip to loop.
2、Set loop count
Choose repeat times and gap.
3、Download looped audio
Preview and save the result.
Why Use Audio Tool
Music is too short
Loop background music to make it longer.
Practice needs repeats
Repeat listening or speaking materials.
Need continuous sound
Create reusable sound loops.
Save a new version
Download the looped audio as a separate file.
Use Cases
Background music
Extend a short music clip.
Listening practice
Repeat study material.
Game sound
Create looping ambience.
Video music
Match longer video duration.
Tips
- More loops create a larger file.
- No gap works well for background music.
- Long audio loops take more time.
- Check whether loop points sound natural.
Processing is completed locally, and files are not uploaded to the server
Related Tools
Audio ConverterConvert audio locally in the browser to MP3, WAV, M4A, AAC, FLAC, or OGG.MP3 ConverterConvert common audio formats to real MP3 output locally in your browser.Compress AudioCompress audio locally by re-encoding to a lower bitrate.Trim AudioTrim an audio file locally using start and end times.Merge AudioMerge multiple audio files locally in the order you choose.M4A to MP3Convert M4A audio to MP3 locally in your browser.
Frequently Asked Questions FAQ
Loop audio repeats the same sound for background music, practice material, white noise, short video music, or ambient audio.
Upload audio, set the repeat count or target duration, and start processing. Preview the joins after processing, then download the looped audio file.
The tool supports common audio formats. It works best with music, ambience, or sound effects that already connect smoothly at the beginning and end.
Looping increases the final duration and repeats the source segment. Preview the loop point to check for sudden changes in beat, breath, room tone, or background sound.
Audio looping runs locally in the browser when supported, and your file is not uploaded to the server. Keep the short original when creating background audio or practice clips.
The looped audio appears in the result area for preview and download. It is a new output file and does not overwrite the original source.