Yes. The Free plan has no time limit and includes the Chrome extension, up to 30 saved thumbnails, up to 3 boards, click test voting, and feature voting.

How much is Thumbsy Pro?

Pro is $5 a month during beta. It is billed monthly through Whop and can be cancelled from the account at any time.

What do Pro credits cover?

Pro includes 105 credits each month, which Thumbsy describes as about eight new thumbnails. Credits are used for steps such as making a new version, tweaking, scoring, or teaching the generator a style or face. Extra credit packs start at $7.49 and do not expire.

Does Thumbsy only work inside Chrome?

The extension adds saving tools while browsing YouTube in Chrome. The rest of Thumbsy lives in its web app, which works in any browser.

Can editors or clients review a thumbnail without an account?

Yes. Reviewers can open a shared link and leave pinned comments directly on the thumbnail without creating an account.

What happens to uploaded and generated data?

Thumbsy stores saved content, generated images, and brand kit items so they remain available in the product. Deleted generations and brand kit items are permanently erased within 30 days, and deleting the account erases all associated data.

Thumbsy: Research and test YouTube thumbnails before publishing

What is Thumbsy?

Thumbsy is a thumbnail research and creation tool for YouTube creators who want to study what already works before making their next design. The Chrome extension lets creators save thumbnails into boards while browsing YouTube, then the web app adds similar thumbnail search, a library of hand picked outliers, thumbnail generation, feed previews, click tests, and review links. The free plan includes up to 30 saved thumbnails and 3 boards, while Pro adds the full research, generation, and testing workflow.

Why Thumbsy works

Thumbnail inspiration is easy to collect and hard to turn into a decision, because references, design changes, and feedback usually live in separate places. Thumbsy connects the research to the finished creative by letting creators find proven patterns, make their own version, then test it in a realistic feed or share it for votes and pinned comments. It turns a thumbnail into a tested draft instead of leaving it as another image in a swipe folder.

Thumbsy features

One click thumbnail saving. Hover over a thumbnail on YouTube and save it straight into a Thumbsy board from the Chrome extension. Free accounts can save up to 30 thumbnails across 3 boards.
Outlier and similar thumbnail research. Pro includes a Vault with more than 1,100 hand picked outlier thumbnails, plus search for thumbnails with similar composition, colors, or style.
Thumbnail generation from references. Choose a reference and Thumbsy can create three new thumbnails using your topic, channel style, and face. A brand kit can learn a style from three of your own thumbnails.
Feed previews and click tests. Place a thumbnail inside a realistic YouTube feed, compare up to three versions, or share a click test so people can vote on which version they would open.
Pinned review links. Editors and clients can open a shared review link, pin comments to a specific spot on the thumbnail, and review new uploaded versions without needing an account.
AI connector. Pro can connect with Claude, ChatGPT, Cursor, and other apps that support MCP connectors to search the Vault, inspect thumbnails, check video stats, and save results into boards.

Who Thumbsy is for

YouTube creators who regularly collect thumbnail references and want those examples organized into boards instead of scattered across browser tabs and folders.
Creators developing several thumbnail directions for one video who want to compare versions inside a realistic feed before publishing.
YouTube creators working with editors or clients who need comments pinned directly onto the design and a clear version history.
Creators researching repeatable visual patterns who want to search outlier thumbnails and find references with similar composition, color, or style.

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