Waveform Viewer

See your audio like never before — annotate it

Zoom into waveforms, spot clipping, compare L/R channels, place color-coded annotations, and export your notes.

Drop your audio file here

Supports MP3, FLAC, WAV, OGG, M4A, AIFF

MP3FLAC WAVOGG M4AAIFF
File --
Format --
Duration --
Sample Rate --
Channels --
Size --
Zoom 1x
0:00.0 / 0:00.0
Add Annotation
FREQUENTLY ASKED QUESTIONS
The Waveform Viewer supports MP3, FLAC, WAV, OGG, M4A, AAC, AIFF, and OPUS. Your browser's built-in audio decoder handles the file — no plugins or uploads needed.
Yes. All waveform rendering and analysis happens entirely in your browser using the Web Audio API and Canvas. Your audio files are never uploaded to any server. No data leaves your device at any point.
You can place color-coded markers at any point on the waveform by pressing M at the playhead position. Each marker can be labeled, dragged to a new position, and assigned a color. Use the Download button to export a PNG of the waveform with all your annotations visible.