Free audiogram maker for podcasters
An audiogram turns a spoken-word clip into something watchable in a social feed: a still frame with an animated waveform moving in time with the audio. Pick a 15 to 60 second segment of your episode, drop it in below, and export a square MP4 ready to post.
Why audiograms work
Audio alone does not autoplay in a scrolling feed, and a static image gives a viewer no reason to stop. An audiogram splits the difference — the moving waveform signals that there is something to listen to, and the format is native to platforms that rank video above every other post type. Captions matter too; this tool renders the waveform, so pair it with your platform’s auto-captions when you upload.
Pick the right clip
The clip does the work, not the animation. Look for a self-contained thought that lands in under a minute: a surprising claim, a sharp answer, a moment of tension. Start on the sentence, not on the breath before it. If the excerpt needs context to make sense, it is the wrong excerpt.
Waveform, not hearing test
Worth noting because it causes confusion: in audiology an audiogram is the chart produced by a hearing test. In podcasting and social media marketing the same word means a short waveform video. This tool makes the second kind.
Frequently asked questions
- What is an audiogram?
- In podcasting, an audiogram is a short video that pairs a clip of audio with a static image and an animated waveform, so the audio can be shared on social platforms that require video.
- How long should a podcast audiogram be?
- Between 15 and 60 seconds. Instagram Reels perform best at 15 to 20 seconds, feed posts around 30 seconds, and Stories close to 15 seconds.
- Is this audiogram maker really free?
- Yes. There is no account, no watermark, and no export limit. The tool runs entirely in your browser, so there are no server costs to pass on.
- Does my audio get uploaded anywhere?
- No. Your file is decoded and rendered locally in your browser using WebCodecs, and the finished MP4 is saved directly by you. Nothing is transmitted to a server.