Check a YouTube thumbnail's ratio, width, file size and format against YouTube's requirements
POST/tools/youtube-thumbnail-size-checker
Check a YouTube thumbnail's ratio, width, file size and format against YouTube's requirements. The same logic as the free web tool at https://postboost.co/tools/youtube-thumbnail-size-checker. No account needed: call it without a token, or with any API token.
Request
Responses
- 200
- 401
- 413
- 422
- 429
The tool output.
Response Headers
Calls allowed in the limit window closest to running out.
Calls left in that window.
Missing or invalid API token.
The request body is larger than 128 KB.
Validation failed.
Rate limit reached. Without a token: 30 calls per minute and 500 per UTC day per IP address (IPv6 per /64). With a token: 300 per minute per user; the Free plan also has 1,000 calls per UTC day, paid plans have no daily cap.
Response Headers
Calls allowed in the limit window closest to running out.
Calls left in that window.
Seconds until the limit resets.