CoverHook
7.3#1 in ai thumbnail generatorsFrom $99 a yearFree planWebAPI
VisitCoverHook vs Thumbnailr.io
Thumbnailr.io
6.4#16 in ai thumbnail generatorsFree planFree planWeb
VisitWhat both publish
| Fact | CoverHook | Thumbnailr.io |
|---|---|---|
| Integrations | Google Sign-In is used for authentication; the privacy policy says Google does not receive prompts, uploads, or generated covers. | The site describes pasting a YouTube link as an input; it does not list other integrations on the page reviewed. |
| Output | YouTube thumbnails can be output at 2048×1152 in 2K or 1280×720 in 1K, both at 16:9. | Thumbnails are exported as 1280×720 PNG files without a watermark. |
CoverHook plans
- FreeFree
- 2,000-credit pack$29.90, paid once
- 4,000-credit pack$59.90, paid once
- Pro$99 a year
- 10,000-credit pack$99.90, paid once
- Studio$199 a year
Thumbnailr.io plans
- FreeFree
- Credit pack$1,025, paid once
Pick CoverHook if…
CoverHook suits creators who need designed covers or thumbnails across its supported formats, particularly YouTube creators who want variant generation and fit checks. Its API may suit workflows that need asynchronous generation, retries, and account-based credit use.
Pick Thumbnailr.io if…
It is aimed at YouTube creators who want thumbnails generated from briefs, references, links, and supplied subject images. The credit system suits users who can work within limited free generations or buy a credit pack.