Audio trimmer with waveform precision
The audio trimmer draws the real waveform of your file, so you cut at the beat instead of guessing timestamps in the dark.
Why use this audio trimmer
A proper audio trimmer should be fast, precise and private. This one is all three — and free.
Audio trimmer accurate to 0.01 s
Type exact start and end values or drag the handles — the audio trimmer treats your numbers as the source of truth.
Free audio trimmer, no catch
No account, no watermark, no daily limit. This audio trimmer stays free because it runs on your own machine.
MP3, WAV, M4A, FLAC
Drop any common audio format into the trimmer and export the cut as MP3, lossless WAV or Apple-friendly M4A.
Nothing is uploaded
The audio trimmer decodes and cuts files inside your browser tab. Your recordings never touch a server.
Instant preview
Play the selection before exporting — the audio trimmer shows duration and file size so you know exactly what you get.
How the audio trimmer works
Three steps from a long file to the exact clip you need.
- 1
Drop your audio file
Drag an MP3, WAV, M4A or FLAC file into the audio trimmer. It decodes locally and shows the full waveform.
- 2
Set start and end
Drag the handles or type the seconds. The audio trimmer refuses invalid ranges, so the start always precedes the end.
- 3
Export the cut
Choose WAV for lossless or MP3 for size, then download. The audio trimmer names the result with a _trim suffix so originals stay safe.
- 4
Trim another file
One click resets the audio trimmer for the next clip — batch your podcast, ringtone or interview cuts in minutes.
What an audio trimmer should never do
Choosing an audio trimmer is easy once you know which corners tools cut.
No re-encoding surprises
A good audio trimmer cuts on your terms. Export as WAV and the samples are untouched; export as MP3 and the encoder quality is stated. The audio trimmer on this page never silently transcodes your lossless file into a lossy one.
Precision matters more than speed for ringtones and samples: the audio trimmer applies your start time before decoding, so the cut lands within a hundredth of a second of what you typed.
Privacy is the default
Most online editors upload your file the moment you drop it. This audio trimmer does the opposite: decoding, selection and export all happen in the tab, which is why it works offline once loaded.
That makes it a safe audio trimmer for unreleased music, confidential interviews or client voice-overs — material you legally or contractually cannot hand to a third-party server.
Limits worth knowing
The browser audio trimmer accepts files up to 100 MB, which covers most podcasts and songs. Heavier archives belong in the free Windows app, which trims and converts in batches.
Very exotic formats may fail to decode in some browsers; if the waveform does not appear, convert to WAV or MP3 first, then run the audio trimmer again.
What people trim with this audio trimmer
Everyday jobs where an audio trimmer saves a re-record or a full DAW session.
Podcast intros and outros
Cut the clean 12-second intro from episode one and reuse it everywhere — the audio trimmer keeps the exact same samples each time.
Ringtones and alerts
Grab the hook of a track at the right beat. The audio trimmer's waveform view makes the drop easy to find.
Interview highlights
Pull a 30-second quote for social clips without opening a timeline editor — the audio trimmer is faster than any NLE.
Honest limits of the browser audio trimmer
Where this audio trimmer stops and the Windows app takes over.
100 MB per file
The browser audio trimmer caps files at 100 MB; longer recordings trim fine in the free Windows app.
Cut, not repair
The audio trimmer removes time — it does not remove noise, clicks or reverb. Those need different tools.
One range per pass
You define one start and end. For multi-segment edits, export several cuts or use the desktop app.
Decode-dependent
If a browser cannot decode your format, the audio trimmer cannot draw it — MP3, WAV and M4A always work.
Audio trimmer FAQ
Quick answers before your first cut.
Windows app
Batch trimming on Windows
Cutting hundreds of files? The free Windows app turns the audio trimmer workflow into a batch job — one folder in, trimmed WAV or MP3 out, still fully local.
- Batch trim and convert entire folders
- No upload, no queue, no file size ceiling
- GPU offload where it helps, CPU otherwise
- Free and open source
Related audio tools
Pair the audio trimmer with extraction and vocal tools in the same local pipeline.
Extract audio from videoExtract audio from video as MP3, WAV or M4A in seconds. Free, in-browser extraction — your file never leaves your device.Get audio from videoGet audio from video with one click. Pick MP3, WAV or M4A and download the full soundtrack — free, private, no upload.Extract sound from videoExtract sound from video and keep every audible detail — speech, music and effects. Free local tool with MP3, WAV and M4A output.Remove background music from videoRemove background music from video while keeping speech and effects. Free and local — short clips run in your browser, long files in the Windows app.Remove vocals from songRemove vocals from song files and compare before and after in one screen. Free, local, instant — instrumental included.
Sources and references
We ground our claims in public specifications and documentation. The references below define how audio tracks, media containers and structured data actually work.
“You pick the file, the tool does the work on your device, and nothing is ever uploaded.”
- FFmpeg Documentation — stream selection and mapping — how lossless audio extraction, track mapping and remuxing actually work
- MDN Web Docs — Web Audio API (W3C) — the browser API that decodes your audio and draws the waveform locally
- python-audio-separator (open source, MIT) — the local stem-separation engine family the free Windows app builds on
- Google Search Central — Structured data — the guidelines this site's FAQ, HowTo and application schemas follow
The audio trimmer that respects your files
Drop a file, set the range, download the cut. This audio trimmer keeps your audio private and your edits exact — try it on the clip you have open right now.
Trim my audio