Trim and cut any audio file online free - no upload to server. Set start and end points with the Start/End sliders, preview the cut, and download the trimmed clip as a WAV file instantly in your browser.
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Cutting the intro off a song or clipping a specific section from a recording are common audio edits that don't require full software like Audacity. This tool handles a single start-to-end trim entirely in your browser - though it doesn't include fades, a waveform view, or multi-segment editing, so those still call for a dedicated audio editor.
Upload an audio file and trim it to a start and end point using two whole-second sliders. The download is always a WAV file, regardless of what format you uploaded - the tool decodes your audio with the browser's Web Audio API and writes the selected range out as uncompressed 16-bit audio. Nothing is uploaded to a server; everything runs in your browser.
Click to select any MP3, WAV, OGG, or AAC file from your device.
Use the Start and End sliders to choose your trim range in whole seconds.
Play the original file to line up your range, then listen to the trimmed result once it's processed.
Export the trimmed clip as a WAV file directly to your device.
Click the upload area and select an MP3, WAV, OGG, or AAC file from your device.
Use the Start and End sliders to choose your trim range in whole seconds, guided by the live time and duration readout.
Play the original file to confirm your range, then click Trim Audio to process the selection.
Listen to the trimmed result in the built-in player, then download it - always as a WAV file, regardless of your original format.
Best For
Input
guitar-riff.mp3, trimmed to a 10-second clipResult
trimmed.wav - a 16-bit, uncompressed WAV file, not an MP3The tool decodes the audio with the Web Audio API and writes the trimmed samples out as uncompressed 16-bit PCM, so the WAV download is typically several times larger than a compressed MP3 of the same length.
Input
podcast.wav, End point set mid-sentenceResult
trimmed.wav stops abruptly at the exact second selectedThere's no fade-in or fade-out option, so a trim point that lands mid-sentence or mid-note starts or stops abruptly rather than fading.
Input
Start slider set to 12, End slider set to 47Result
"Trim: 0:12 → 0:47 (Duration: 0:35)"Both sliders operate in whole-second increments, so there's no way to set a trim point at a fractional second like 12.5 - the closest options are 12 or 13 seconds.
Trim a 20-30 second section for a ringtone - since the download is WAV, you may need to convert it to M4R or another ringtone format afterward.
Manually trim the start or end of a podcast or voice memo by listening and adjusting the Start/End sliders.
Isolate a specific section of a longer recording to share or reference separately.
Trim a recording down to fit a specific duration, using the live duration readout to confirm the exact length.
Problem
Solution
The trimmed file always downloads as WAV, even if you uploaded an MP3, OGG, or AAC file - there's no option to export back to the original compressed format.
Problem
Solution
Cuts are hard cuts with no fade-in or fade-out - a trim that lands mid-note or mid-word starts or stops abruptly.
Problem
Solution
There's no waveform display. Trim points are set with plain Start/End sliders and a time readout, not a visual amplitude view.
Problem
Solution
Both sliders work in whole-second increments - you can't select a fractional second like 12.5s.
Since the download is always WAV, run it through an audio or format converter afterward if you need MP3, M4R, or another compressed format for a ringtone or upload.
Play the uploaded file and note the times you want, since there's no waveform to visually locate them.
If you need the clip to fade in or out, do that in a dedicated audio editor after downloading the WAV.
This tool decodes and re-exports as WAV, which is fine for most edits, but isn't a frame-accurate MP3 cutter - use a tool like Audacity or mp3DirectCut if that matters.
Regardless of whether you upload MP3, OGG, or AAC, the download is always a 16-bit WAV file - there's no format selector.
Cuts are hard cuts at the exact second selected, with no fade or crossfade option.
Trim points are chosen with numeric Start/End sliders and a time readout, not a visual waveform.
Both sliders operate in whole-second increments, so sub-second trim points aren't possible.
The tool trims one start-to-end range per file - there's no way to remove or keep multiple separate sections in one pass.
The whole file is decoded into memory in your browser before trimming, so very long or large audio files may be slow or run into your browser's memory limits.
Both can trim audio, but they differ in format handling and precision.
| This Tool (Audio Trimmer) | A Desktop Editor (e.g., Audacity) | |
|---|---|---|
| Output format | Always WAV, regardless of input format | Can export back to MP3, OGG, or other formats |
| Trim precision | Whole seconds only | Sample-accurate, sub-second precision |
| Fades | Not supported - hard cuts only | Fade-in/out, crossfade, and other effects available |
| Setup | None - runs instantly in your browser | Requires installing and learning dedicated software |
The most common question is what format the download comes in. This tool always exports a WAV file, no matter what format you upload - trimming an MP3 gives you a larger, uncompressed WAV file, not a trimmed MP3. The FAQ below also covers what the tool doesn't do: no fades, no waveform display, and no multi-segment cuts.
Always a WAV file, no matter what format you upload. The tool decodes your audio with the browser's Web Audio API, extracts the selected range, and writes it back out as a new 16-bit WAV file - there's no option to export back to MP3 or another compressed format. Trimming an MP3 will give you a WAV file that's typically several times larger than the original.
No lossy re-encoding happens during the trim - the tool decodes your file to raw audio samples and writes the selected range straight to an uncompressed WAV file, so there's no MP3-style recompression step. The output is uncompressed, though, so it will usually be much larger than a compressed MP3 or OGG input - that's a format and size change, not a quality loss.
No. This tool only cuts the audio to your chosen start and end points - there's no fade, crossfade, or volume-ramp option. Use a desktop editor like Audacity if you need fades.
No. There's no waveform display - a built-in player lets you listen to the original file, and two sliders labeled Start and End let you choose your trim points in whole seconds. There isn't a visual amplitude view to spot silence or precise transients.
No. The tool supports a single continuous start-to-end selection per trim - everything before the start point and after the end point is discarded. For multi-segment edits, combine several trimmed clips using a full audio editor.
Trim points are set in whole seconds, not fractions of a second - the sliders and time display both round to the nearest second. For frame-accurate or sub-second trimming, use a desktop audio editor.
No. CoditTools's audio trimmer decodes and processes your file entirely in your browser using the Web Audio API - it's never uploaded to a server.
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