Audio Waveform Generator
Generate a PNG or SVG waveform image from any audio file — on the server
Server-side FFmpeg handles any format — including HEVC/H.265 files your browser can't play. Files are deleted from the server within 30 minutes.
⚠️ Please don't close or refresh this page until it's done, or you may lose the result.
💡 Upload speed depends on your own network, not our servers — a slow connection just means the bar moves slower. It'll keep going; no need to retry or worry about being charged twice.
Why people choose us
Server-grade processing
Real FFmpeg on dedicated hardware: every format, big files, phone stays cool — no browser limits.
Auto-deleted in 30 min
Uploads and results are wiped from the server within 30 minutes. Nothing is kept, shared or used for training.
Pay with credits
Each job costs a few credits from your balance — free accounts get daily credits too. No hidden fees.
How it works
- 1
Upload any audio file — format doesn't matter, the server decodes it.
- 2
Choose PNG or SVG output, set the width/height and pick your waveform and background colors.
- 3
Preview the waveform image on the page and download it. Files auto-delete in 30 minutes.
Frequently asked questions
What's the difference between PNG and SVG output?⌄
PNG gives you a pixel-perfect raster image at the exact dimensions you set — great for social media posts, thumbnails and podcast cover art. SVG gives you an infinitely scalable vector graphic that looks sharp at any size — ideal for websites, apps and print designs where you may need to resize later.
How is the waveform generated?⌄
For PNG: FFmpeg's showwavespic filter renders the full waveform as a single high-resolution image. For SVG: the server extracts audio amplitude data, derives peak values per pixel column, and constructs a clean SVG path with your chosen colors — no raster-to-vector tracing, so the result is crisp and lightweight.
What happens to my file?⌄
The upload and the waveform image are deleted automatically within 30 minutes. Jobs are only reachable with your session's signed token.
Related tools
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Audio Converter
Convert MP3, WAV, OGG, AAC or FLAC into any other audio format — on the server
Audio Compressor
Shrink an audio file's size with a bitrate quality preset — on the server
Audio Trimmer
Cut a precise start/end range out of an audio file — on the server