Audio Trimmer
Trim any audio file down to the exact part you want. Drag two handles on the waveform, fine-tune the edges, and export the clip - all inside your browser, with nothing uploaded to a server.
How to trim audio
- 01
Open your file
Drop an MP3, WAV, M4A, AAC, FLAC or OGG file onto the waveform. The file is read locally in your browser and never uploaded.
- 02
Drag the two handles
Move the start and end handles until only the part you want to keep is selected. Zoom in for sample-accurate edges.
- 03
Export the clip
Download the trimmed file in one click. Need more than one piece? Add extra handle pairs and export every selection at once.
Why trim audio in your browser
The file never leaves your machine, so there is no upload queue, no size ceiling and no waiting for a server to hand it back. A 90-minute recording opens in seconds, because only the waveform is read up front and the audio is not decoded as a whole.
Trim vs split: which one do you need?
Trimming keeps one part of a recording and discards the rest - that is the page you are on. Splitting turns one file into many separate tracks. If you are cutting an audiobook into chapters or a DJ set into tracks, use the splitter. If you are keeping the good take out of five, you want the trimmer.
What you can trim
MP3, WAV, M4A / M4B, AAC, FLAC and OGG. MP3, WAV, M4A and AAC have no fixed length limit because they are cut on container boundaries; FLAC and OGG are decoded first, which caps them at roughly two hours inside a browser tab.
Remove silence between clips
Trimming is also how you clean up a recording: drag the handles past the room tone at the start, the pause where you were thinking, and the false start at the end. Remove silence from audio one stretch at a time, or place a marker pair around each quiet passage and export the useful parts together.
Common uses for an audio trimmer
Cutting the waffle off the top of a podcast, taking a 30-second section out of a song for a ringtone or a video soundtrack, trimming an interview down to one answer, or cutting the ten minutes of waiting off the start of a meeting recording.
Supported formats
- MP3 / AAC
- Cut on frame boundaries - no re-encode
- WAV
- Cut by byte range - no re-encode
- M4A / M4B
- Cut on sample boundaries - no re-encode
- FLAC / OGG
- Decoded first; roughly 2 hours max in a browser tab
Questions
- Is this audio trimmer free?
- Yes. Trimming, unlimited clips and unlimited exports in the original format are free - no account, no watermark, no ads. Pro is a one-time $19.90 purchase that adds batch ZIP export, CUE / chapters export and re-encoding to MP3, AAC or Opus.
- Do I have to upload my audio file?
- No. The file is read locally with the Web Audio API inside your browser tab; the audio never leaves your device.
- What formats can I trim?
- MP3, WAV, M4A / M4B, AAC, FLAC and OGG.
- Can I trim an MP3 without re-encoding it?
- Yes. MP3 and AAC are cut on frame boundaries and WAV by byte range, so the audio stream is copied. Free exports stay in the original format; Pro can re-encode to MP3, AAC or Opus when you want a smaller file.
- What's the difference between trimming and splitting?
- Trimming keeps one part and discards the rest. Splitting turns one file into many separate tracks. Both run on the same engine here.
- How long can the audio be?
- MP3, WAV, M4A and AAC have no fixed limit because nothing is decoded as a whole. FLAC and OGG are decoded first and cap out at roughly two hours inside a browser tab.
- Can I trim audio on my phone?
- Yes, it runs in any modern mobile browser. For precise handle placement on a long file, a larger screen is easier.
- Will the exported clip have a watermark?
- No. There is no watermark, no audio sting and no branding added to your file on any tier.