Thumbn

Plans and prices

Every plan, in full

On the record

Account requirement

Sign-in uses a Google account rather than a separate Thumbn password.thumbn.so · read 15 Oct 2026

Account security

Thumbn says user API keys are encrypted at rest and are not shown in the browser after saving.thumbn.so · read 8 Oct 2026

API billing

API, MCP and web generations share the same subscription and credit balance, with no separate free API tier.thumbn.so · read 15 Oct 2026

API tools

Documented tools include create_thumbnail, get_thumbnail_job, list_thumbnail_jobs, list_image_models, estimate_cost and get_account.thumbn.so · read 15 Oct 2026

App-store availability

No iOS, Android or Microsoft Store application listing or rating is stated on the opened Thumbn pages; the product is presented as a web service.thumbn.so · read 15 Oct 2026

Authentication

API requests use an x-api-key or bearer token, while MCP uses OAuth 2.1 with authorization-code PKCE and refresh tokens.thumbn.so · read 15 Oct 2026

Automatic grading

Each render is scored against a style rubric and re-edited until it clears the stated threshold.thumbn.so · read 15 Oct 2026

Availability limitation

The terms provide no uptime guarantee and warn that failures or policy changes at third-party AI providers can disable parts of the service.thumbn.so · read 15 Oct 2026

Bring your own keys

Renders using a user's Google, OpenAI, or Anthropic key bill to that provider account instead of using Thumbn credits.thumbn.so · read 8 Oct 2026

Cancellation

Subscriptions can be cancelled from the account billing page at any time, with access continuing through the paid period.thumbn.so · read 8 Oct 2026

Cancellation and refunds

Subscriptions can be cancelled from the billing page; unused prepaid periods are not prorated, and refunds are offered within 14 days only when no generation has been made unless the service caused the problem.thumbn.so · read 15 Oct 2026

Chrome Web Store availability

The opened Chrome Web Store help page explains the store generally, but no Thumbn extension or rating is shown there.support.google.com · read 15 Oct 2026

Conversational editing

Users can select a generated thumbnail and describe edits such as larger text, a different background or an arrow in plain language.thumbn.so · read 15 Oct 2026

Credit calculation

Video analysis costs 2 credits per job; rendered images cost model-specific rates such as 1 credit for Nano Banana Pro and 2 for GPT Image 2.thumbn.so · read 15 Oct 2026

Cross-platform rendering

One run can produce both a 16:9 YouTube image and a 9:16 image for TikTok and Instagram Reels.thumbn.so · read 15 Oct 2026

Data deletion

After account closure, projects, uploads and generated images are stated to be deleted within 30 days, while invoices are retained for six years for tax purposes.thumbn.so · read 15 Oct 2026

Editing

Users can direct edits to a selected thumbnail, and each version is kept rather than overwriting the previous one.thumbn.so · read 8 Oct 2026

Export

Generated versions are downloadable as PNG files.thumbn.so · read 15 Oct 2026

Alternatives to Thumbn

T ThumbyAndroidiPhone & iPad+1 F FacelessLabWeb T ThumbrixWebBrowser extension C CoverHookWebAPI T ThumbmagicWeb T ThumbpilotWeb B BeyondBeingsWeb TA Thumbnail.AIWeb

Every alternative, ranked