Stumbnail

Spec sheet

Product

Stumbnail describes itself as an AI YouTube thumbnail generator that turns ideas or video titles into creator-ready visuals.Read 9 Oct 2026 · stumbnail.com

Security

The privacy policy lists TLS/SSL encryption in transit, encrypted storage at rest, access controls and authentication, and regular security audits and updates.Read 9 Oct 2026 · stumbnail.com

Privacy

The privacy policy says Stumbnail does not sell personal information and does not store full credit card details; payments are processed by Stripe.Read 9 Oct 2026 · stumbnail.com

Support

The contact page lists email support, says replies usually arrive within a few hours, and describes WhatsApp as the fastest contact method with 24/7 availability for urgent issues.Read 9 Oct 2026 · stumbnail.com

Founded

2024Read 28 Sep 2026 · stumbnail.com

AI providers

The privacy policy names Google Imagen and Recraft AI among the third-party AI services and says prompts may be processed by those providers.Read 9 Oct 2026 · stumbnail.com

Editing

Users can adjust colors, personas, text, and layout without starting over.Read 9 Oct 2026 · stumbnail.com

Free tier

Stumbnail says it discontinued its free tier and no longer provides free credits.Read 9 Oct 2026 · stumbnail.com

Free tools

Stumbnail offers a free thumbnail previewer and downloader; the downloader page says no signup is needed and downloads have no limits.Read 9 Oct 2026 · stumbnail.com

Generation

The pricing page says thumbnails can be generated from a prompt or YouTube link, and generation costs 3–47 credits depending on model.Read 9 Oct 2026 · stumbnail.com

Output

The home page says generated thumbnails follow 1280 × 720 pixels at a 16:9 aspect ratio; the About page also describes output up to 4K.Read 9 Oct 2026 · stumbnail.com

Payment availability

The pricing page says it has temporarily stopped accepting new payments and purchases are unavailable.Read 9 Oct 2026 · stumbnail.com

Plan features

Every paid plan includes prompt-based generation, Smart Merge, thumbnail cloning, custom asset uploads, access to all AI models, and private thumbnails.Read 9 Oct 2026 · stumbnail.com

Retention

The privacy policy says thumbnails and related data are retained for up to 365 days and may then be deleted.Read 9 Oct 2026 · stumbnail.com

Smart Merge

Smart Merge combines uploaded images and lets AI compose a thumbnail with layouts, text, and style.Read 9 Oct 2026 · stumbnail.com

Plans and prices

Every Stumbnail plan and price →

Where Specifiction places it

• AI Thumbnail Generators#19 of 297.6