AudioTrim MP3 Editor

AudioTrim MP3 Editor gives you a focused, on-device workspace for precise audio cuts and compatible track merging. Choose a local file, mark the range on a waveform, fine-tune either boundary in 0.1-second steps, preview it, and save the result without creating an account.

PRECISE TRIM CONTROLS

• Open MP3, PCM WAV, M4A, or AAC audio from Android's document picker

• Mark start and end positions with two independent range controls

• Fine-tune either boundary in 0.1-second steps

• Preview the selected range before processing

• Keep only the selection or remove the selection from the track

MERGE MATCHING TRACKS

Select two or more tracks and join them in the chosen order. MP3 files can be combined with MP3 files, WAV files must share the same PCM format, and M4A/AAC inputs must use compatible codec and sample settings.

ORGANIZED LOCAL OUTPUTS

Finished files are saved to Music/AudioTrim through Android MediaStore. The output library lets you play each result, rename its in-app title, share it with another app, review its format, duration, and size, or delete it from the device.

DESIGNED FOR LOCAL CONTROL

Core audio processing runs on your device. MP3 frames and PCM WAV samples are copied directly where possible, while supported M4A/AAC tracks are remuxed without intentional re-encoding. Your source files are not uploaded by AudioTrim.

FORMAT NOTES

AudioTrim requires Android 10 or later. File compatibility depends on the container, codec, and metadata exposed by Android. WAV merging requires matching sample formats, and M4A/AAC merging requires compatible audio-track settings. Very large files may take longer to process and need additional free storage.

Advertising may appear to support continued development. Ads do not replace or block the core local editing workflow.