Cut a clip out of your MP3.
safe · secure · no server · works offline · fast
…or paste a file you copied in Finder, or just start typing at the cursor.
↓ scroll for about & FAQsafe · secure · no server · works offline · fast
…or paste a file you copied in Finder, or just start typing at the cursor.
↓ scroll for about & FAQ
Drop an .mp3 and the STUDIO tab draws its
waveform with a real timeline you can zoom into. Drag across the part you
want, press the play button that appears inside the selection to check it,
then name the clip, fill in as much or as little of its tags as you like,
and download it.
Most online MP3 cutters decode your audio and encode it again, which costs quality every time. This one does not: an MP3 is a chain of independent frames, so a clip of one is a byte-for-byte copy of the frames you selected. That makes it instant even on a very large file, and the clip sounds exactly like the part of the original it came from. The clip gets a freshly computed Xing header so players report its real length and can seek it properly.
Cuts land on the nearest MPEG frame boundary — about 26 ms — which is the honest limit of trimming without re-encoding. Everything runs inside your browser tab: nothing is uploaded, and the same drop also gives you a player, the ID3 tag editor, format conversion, and raw and hex views.
It’s one lens on OmniViewer’s MP3 File Viewer — Inspect MP3 Audio Locally: drop a file and every tab is one click away. OmniViewer opens every file format, entirely in your browser — no upload, no server.
No. OmniViewer is a static page with no server-side processing: your MP3 is read directly by your browser and never leaves your computer.
MP3 (MPEG-1/2 Audio Layer III) is a compressed audio format. The file is a sequence of independent audio frames, each starting with a sync header, usually preceded by an ID3 tag block holding the title, artist, album and cover art.
That is the ID3v2 tag block: metadata (title, artist, album, artwork) stored before the audio frames. In the hex view you can see exactly how large it is and where the audio data begins.
OmniViewer identifies the format from the content — the ID3 header or the MPEG frame sync bytes — not from the file extension, so a renamed or mislabelled file is detected for what it actually is.
Effectively unlimited. OmniViewer only reads the bytes needed to paint the screen; the engine behind it has been tested in-browser with a 40 GB file.
Yes. The METADATA tab reads the ID3v2 tag and lets you edit the title, artist, album, year and more, then download a re-tagged copy — the audio is never re-encoded, so it stays lossless. Playback with playlists is still rolling out; everything stays local either way.
Yes. The MP3 generator at /s/mp3/generator builds a valid, silent MP3 of any size up to 2 GB — you pick the MPEG version, the sample rate and the ID3 tags — and streams it straight to disk without uploading anything. A "Smallest possible" button emits the tiniest valid MP3: a single tag-less frame.