Convert Audio to Waveform Image via API

Generate visual waveform images from audio files for music players, podcast platforms, and audio preview displays. Customize colors, size, and style.

Try it in your browser

Loading FFmpeg engine... (~31 MB)

Use the API

curl -X POST https://renderio.dev/v1/commands \
  -H "X-API-KEY: ffsk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
  "ffmpeg_command": "-i {in_audio} -filter_complex \"showwavespic=s=1920x240:colors=0x3B82F6\" -frames:v 1 {out_video}",
  "input_files": {
    "in_audio": "https://example.com/input.mp3"
  },
  "output_files": {
    "out_video": "output.png"
  }
}'

Need an API key? Get your free API key to start processing files programmatically.

Common Variations

Taller waveform (480px)

-i input.mp3 -filter_complex "showwavespic=s=1920x480:colors=0x3B82F6" -frames:v 1 output.png

Custom color (green)

-i input.mp3 -filter_complex "showwavespic=s=1920x240:colors=0x22C55E" -frames:v 1 output.png

Split channels display

-i input.mp3 -filter_complex "showwavespic=s=1920x480:colors=0x3B82F6|0xEF4444:split_channels=1" -frames:v 1 output.png

Related Operations

Convert Video to MP3 via API | RenderIO Convert Video to WAV via API | RenderIO Extract Audio from Video via API | RenderIO Convert Video to Thumbnail via API | RenderIO

Need to process at scale?

Automate this with the RenderIO FFmpeg API. Process thousands of files programmatically or through no-code video automation.

Get your API key