DirectoryBest AI tools for podcast audiograms
Best AI tools for podcast audiograms
Checked October 21, 2026. Headliner's figures are from headliner.app/pricing. Opus Clip is quoted from its listing, last checked October 20, 2026. Swell AI is quoted from its listing, last checked October 20, 2026.
An audiogram is a poster for the audio
An audiogram is the waveform, the quote, and a few seconds of the episode, sized for a feed. A vertical clip is a different object: it expects a face. Show notes are a third object. The tools in Short-form clipping overlap, and they do not start from the same file.
Headliner is the audiogram tool. Forever Free is $0. The pricing page lists 1 unwatermarked audiogram a month, unlimited watermarked audiograms, and 2 hours of transcription a month. A repeated block says 1 unwatermarked video a month instead, so that free allotment is approximate. The page says video clipping and captioning are free while that beta lasts. Basic is shown as $9.99/month, with $14.99 struck through, or $7.99/month billed annually, with 10 unwatermarked audiograms. Pro is shown as $25.99/month, with $29.99 struck through, or $19.99/month billed annually, with unlimited unwatermarked videos and unlimited transcription. A help article from June 12, 2025 still prints the old monthly prices.
When the source is a video
Opus Clip finds moments in a long video, reframes them vertical, and captions them. Free is $0 for 60 credits a month, with a watermark, no editing, and clips that stop being exportable after 3 days. Starter is $15/month for 150 credits. Pro shows $29 and $14.50/month billed annually for 300 credits. That is the tool when the episode is already a video and the post is a face. It is a poor fit when you only have the audio and you want a waveform.
Swell AI drafts show notes, a newsletter, social posts, clips, and audiograms from one upload. Hobby is $0 for 1 upload a month. Studio is $29/month for 300 transcription minutes. The audiogram is one of the outputs, next to the notes. Use it when the caption and the description have to come from the same file. The Best AI tools for podcast show notes page is the wider shelf for the writing.
Which one to open
Audio only, and the post is a waveform with a quote: Headliner. A video episode, and the post is a vertical clip of a face: Opus Clip. One upload that has to produce the notes and a few posts: Swell AI, and the free plan is a single upload. Read the line on the waveform before it posts. These tools will happily caption a sentence that does not stand alone. The Social scheduling list is where the file goes after you export it.
Listings on this page
Questions
What is the difference between an audiogram and a clip?
An audiogram is a still or a short animation of the audio: a waveform, a quote, cover art. A clip is a piece of the picture, usually vertical, with captions. Headliner starts from the audiogram. Opus Clip starts from the video.
Is there a free audiogram plan?
Headliner's Forever Free plan is $0 and lists 1 unwatermarked audiogram a month, plus unlimited watermarked ones. The same page also says 1 unwatermarked video in one block, so confirm the export before you count on it. Swell AI's Hobby plan is $0 for 1 upload a month, and that upload includes audiograms.
Do these tools post the episode?
Headliner can post audiograms to social accounts and YouTube on the plans that include it. Opus Clip can schedule on paid plans. Swell AI exports the posts and the notes. None of them replace the podcast host.