Media

Waveform Poster

Audio assets need visual identity for posts, docs and catalogs. Waveform Poster decodes a local audio file, samples peaks and draws a 16:9 cover image for export.

Choose an audio file.

runtime

Browser-local execution

Inputs stay inside the current tab unless you copy, download or explicitly export.

memory

Session handoff

Magic Paste can pass input to a target tool through sessionStorage, never through the URL.

control

User-owned state

Favorites, recent tools and workflow history are local browser data you can clear from the browser.

smart handoff graph

Suggested next moves

session handoff ready
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sponsor

Fixed native slots for developer products. No third-party tracking, no popups, no layout shift.

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01

How to use

  1. 01Enter a poster title.
  2. 02Choose a local audio file.
  3. 03Download the generated waveform cover PNG.
02

FAQ

Does it upload audio?
No. Web Audio decodes the file inside the browser tab.
03

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