Vidlens vs YTThumbnail

Vidlens is a YouTube SEO toolkit available on the web, as an extension, and through an API. Its SEO Score rates a video’s title, description, tags, engagement, and early performance on a 0–100 scale. The Chrome extension places scores, view-per-hour figures, outlier badges, and Studio checks inside YouTube. Vidlens tracks competitor uploads hourly and can email when a video gains views three times faster than usual. Its REST API offers video analysis, bulk analysis for up to 50 videos per request, keyword suggestions and scores, competitor tracking, and trend endpoints. Channels connect through read-only YouTube OAuth scopes. The Free plan costs nothing and includes 30 AI credits per month, one competitor channel, AI title, description, and tag tools, and keyword research. Pro costs $14.99 a month; API request limits vary by plan. Users can export data, delete accounts, or revoke YouTube access.

YTThumbnail is a browser-based tool for previewing and downloading thumbnails from YouTube videos and Shorts. It lists SD, HD, 1080p, and 4K image qualities, though 4K is available only when the source provides it. Users can download one selected quality or extract all available qualities. The tool requires no installation and is described as compatible with desktop and mobile devices. The maker specifically mentions desktop and Android browsers; saving images on iPhone may be limited by browser settings. YTThumbnail is free to use without registration or payment, for personal, non-commercial purposes. Its terms say thumbnails remain the property of their content owners, and commercial reuse requires permission or an appropriate license. The maker says images are fetched directly to the browser but does not state a security certification or compliance standard on the pages reviewed. The site's navigation also lists a monetization checker, earnings calculator, SEO channel audit, image downloader, title generator, tag extractor, and tag generator.