Audio Waveform Image Generator

About the Audio Waveform Image Generator

Drop an MP3, WAV, M4A, OGG, FLAC or a video file and render its waveform as a crisp image. Choose bars, mirrored bars, a line or a filled shape, set the exact pixel width and height, pick wave and background colours or export with a transparent background, then download a PNG, JPEG or WebP. Perfect for podcast covers, YouTube thumbnails, music release art and audio player placeholders. Audio is decoded with Web Audio in your browser and never uploaded.

Keyboard shortcuts

• Copy the main outputCtrl / ⌘ + Shift + C
• Download the resultCtrl / ⌘ + S
• Share this toolCtrl / ⌘ + Shift + S
• Reset the inputsAlt + R
• Open the tool search paletteCtrl / ⌘ + K

Frequently asked questions

Read more

• Converting audio in the browser: bitrates, sample rates and when lossless matters

  MP3, M4A, OGG, WAV and FLAC each have a job. Here is how to pick one, what bitrate to use, and how ffmpeg.wasm converts files without an upload.

• Preview before you export: why audio tools need a play button

  Scrubbing, in/out handles and instant playback turn guesswork into precision when you trim or join audio in the browser.

• MP3, WAV, FLAC, M4A and OGG: which audio format to use when

  A practical guide to lossy vs lossless, bit depth, sample rate and why browser tools tend to hand you a WAV at the end.

• How to trim and join audio files without installing anything

  Cut a clip, fade it in, join several tracks with a crossfade and export a WAV — using nothing but the Web Audio API in your browser.

• What an audio waveform actually tells you

  Peaks, RMS, clipping and silence — how to read a waveform image and use it to edit faster, plus how waveform rendering works in the browser.

• How to find and download an m3u8 (HLS) video link

  Why streaming sites hide the real video URL, how to spot .m3u8, .mpd and .mp4 requests, and how to turn a playlist into a single MP4.

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