Trim an audio file in your browser: set where the clip should start and end, listen to the part you are keeping, and save only that. Type an exact time such as 1:12.5, drag the start and end handles over the track, or nudge them with the arrow keys a tenth of a second at a time; the cut lands on the nearest sample. Use it to shorten a WAV file, cut the dead air off a recording or keep one answer from an interview. A WAV stays a WAV and other formats come back as MP3. The file is cut on your device and never uploaded.
How it works
- Drop the recording. The whole length is selected to begin with, and files up to 40 MB are drawn as a waveform so you can see where the sound starts and stops.
- Move the start and end: type the times, drag the handles, or use the arrow keys (hold Shift for one-second steps). Press play to hear just the kept range.
- Save it. The trimmed file keeps its name with -trimmed added, as WAV if it was a WAV and as MP3 otherwise.
Questions
- How do I shorten a WAV file?
- Drop it here, set the start and end of the part you want to keep, and convert. The result is still a WAV, an uncompressed 16-bit file any editor opens, only shorter. To remove a stretch from the middle instead, trim twice to keep the part before it and the part after it, then put the two back together with the audio joiner.
- Does trimming an MP3 lose quality?
- A little, once. This tool cuts the decoded sound rather than the MP3’s frames, so the part you keep is encoded again as a new MP3 at 192 kbps. One pass at that rate is hard to hear, but a 320 kbps source does come back at 192 kbps. M4A, OGG and FLAC sources are saved as MP3 the same way. A WAV is saved as WAV, with no compression step at all.
- Can I trim several files the same way?
- Yes. Drop up to 200 files and set one range: it applies to every file, clamped to each one’s own length. Setting the start to 0:05 cuts the same five-second intro off a whole set of episodes or takes, and each file still runs to its own end. The batch downloads as one ZIP with a report listing every file.
- Does my file get uploaded?
- No. The models and all processing run inside your browser on your own device. You can verify this yourself: open your browser’s DevTools, watch the Network tab, and process a file: there are no uploads. After the first visit most tools also work fully offline.
- Which formats can it read?
- Anything your browser can decode: MP3, WAV, M4A/AAC, OGG, Opus, FLAC and the audio track of MP4/WebM/MOV video. Output is MP3 or WAV, the two formats that open everywhere.
- Does converting to MP3 lose quality?
- MP3 is lossy, so some information is discarded, though at 192 kbps and above most people cannot hear the difference. WAV output is lossless and correspondingly larger. Converting MP3 to WAV does not restore quality that was already gone.