FormatDogWorkspace
iPhone/iPad doesn't allow apps to trigger this automatically — just two manual taps:
Cut an audio file down to just the part you need — preview it, set a start and end point in seconds, and download just that clip as MP3. Runs entirely in your browser.
No signup · No file limits · Files never leave your deviceSelect the audio file you want to cut down.
Play it back and enter the exact start and end seconds.
Get just the trimmed section as an MP3.
Any common audio format your browser can play back for preview — MP3, WAV, M4A, OGG, and more. The trimmed output is always saved as MP3.
No. The preview and the actual trim both happen entirely inside your browser, on your own device.
A real, self-hosted build of FFmpeg compiled to WebAssembly — about a 30MB one-time download the first time you use any video/audio tool on this site, then cached by your browser for every tool afterward.
Down to a tenth of a second — the selected range is re-encoded for an accurate cut rather than snapped to the nearest chunk boundary.
Yes, completely free, with no daily limit.
Processing calculations securely within local tab memory
Selected files are loaded safely in local memory.
Selected files are loaded safely in local memory.
Loading pages...
Selected files are loaded safely in local memory.
⚠ This applies real encryption. If you lose these passwords, there is no way to recover the file — please store them somewhere safe.
Selected files are loaded safely in local memory.
Detecting form fields...
Loading pages...
Pinch or use +/− to zoom, two fingers to pan. One finger to drag and redact.
Scanning file…
Selected files are loaded safely in local memory.
Common government form requirements: 20KB, 50KB, 100KB, 200KB
Common government form requirement: 200×230px (passport-style photo)
Selected files are loaded safely in local memory.
Detects the person in each photo automatically. Works best on a single, clearly visible person — ideal for ID and passport-style photos.
Paint to fix any spots the automatic detection got wrong.
Pinch or use +/− to zoom, two fingers to pan. One finger to paint.
Requesting camera and location access...
Selected 1 file(s). Preview reflects your first selected file.
Reading existing metadata…
Reading metadata…
Reading file…
Checking file…
Loading pages…
Drag the corner handles to resize the crop area, or drag the middle to move it.
Loading image…
Detecting grid lines…
Loading PDF…
Calculating…
Loading pages…
Click any line of text to retype it. Pinch or use +/− to zoom.
Loading pages…
Highlight/Underline: drag a box over the text. Draw: drag to sketch. Note: tap once to place a comment.
Loading duration…
GIF clips are capped at 10 seconds to keep the file size reasonable.
Trimming re-encodes the selected range for frame-accurate cuts — entirely in your browser, nothing is uploaded.