Is My Thumbnail Good? Thumbnail Analyzer
We look at your actual thumbnail image and grade it on contrast, text readability, faces, color composition, and click-worthiness. Get a score and specific fixes.
One video here. Your whole channel in ChannelGrade.
Connect your channel and every upload is pulled in on its own, no pasting links.
Free to connect. A plan adds the written read of each upload: why viewers left, what comments ask for, what to make next.
Every video against the middle of your own others of the same kind, at the same age. Shorts with Shorts.
On screen: one still shot of the pan while the voice-over explains the rule. Said: "so the reason this works is". Likely why: the payoff already happened, and the explanation is slower than everything before it.
Why: StarterYour title and thumbnail in real YouTube search, next to the videos you are up against. Checks that give the same answer every time, no made-up scores.
Channels like yours, each video against that channel's own usual. You see the moment one of theirs takes off.
Mostly excited and asking for more. A few viewers say the music drowns out your voice in the middle.
They ask you to make
do this in the snow next PLEASE
what spices did you use at 2:10?
They ask
where is that pan from??
how many hours was the hike in
See your next thumbnail in real YouTube search, next to the videos you are up against.
Paste your channel and see your newest videos compared with each other, in seconds. Free, no sign-in.
How It Works
Paste Your Video
Drop in any YouTube video URL to grab its thumbnail
We Scan the Image
We look at the image itself: text, faces, colors, composition
Get Your Score
Overall grade plus specific fixes to make your thumbnail click-worthy
What Gets Analyzed
Composition & Layout
Rule of thirds, visual hierarchy, focal point placement, negative space
Text Readability
Font size, contrast against background, word count, readability at small sizes
Faces & Emotion
Face detection, expression clarity, whether emotion reads at thumbnail size
Colors & Contrast
Color palette, saturation, contrast ratio, feed visibility on light and dark backgrounds
FAQ
Does it actually look at my thumbnail image?
Yes. Unlike most thumbnail tools that only check metadata, this tool downloads your actual thumbnail image and analyzes the image itself. It sees everything: text, faces, colors, composition, contrast. The analysis is based on what your viewers will actually see in their feed.
What makes a high-scoring thumbnail?
Top thumbnails share common traits: bold, readable text (3-5 words max), clear facial expressions with exaggerated emotion, high contrast that pops against both light and dark YouTube feeds, and strong composition with a single clear focal point. The best thumbnails create a curiosity gap that makes the title irresistible.
Can I test my thumbnail before uploading?
This tool analyzes thumbnails from published YouTube videos. To test a thumbnail before publishing, use our free Thumbnail A/B Predictor, which scores thumbnail images you upload directly, no published video needed.
How does this compare to testing thumbnails manually?
Manual testing relies on your own gut feeling, which is biased because you designed the thumbnail. Image analysis catches issues you can't see: low contrast ratios, text that's unreadable at small sizes, expressions that don't read at thumbnail scale. It's like having an expert designer review every thumbnail in seconds.
Get the full read of every video you upload
Thumbnail Analyzer stays free here. A plan reads every video on your channel for you: what to change, where viewers left and why, what your comments ask for, and what to make next. It also follows channels like yours and checks every title and thumbnail before you post.
- 1 channel, every video compared with your usual
- Views per day and the retention curve (with YouTube Studio)
- Where viewers came from and who watched
- 5 free runs a day of every tool
- 1 channel, every new upload read for you
- Where viewers stop watching and why (with YouTube Studio)
- What to change on each video, from its own numbers
- What your comments ask for, counted and quoted
- What works on your channel, and what to make next
- Follow 10 channels like yours and see what takes off for them
- Check every title and thumbnail before you post
- A weekly email: what moved and what to make next
- 30 tool credits/month
- 3 channels, every new upload read for you
- Where viewers stop watching and why (with YouTube Studio)
- What to change on each video, from its own numbers
- What your comments ask for, counted and quoted
- What works on your channel, and what to make next
- Follow 30 channels like yours and see what takes off for them
- Check every title and thumbnail before you post
- A weekly email: what moved and what to make next
- 100 tool credits/month
- Priority support
- 20 channels, every new upload read for you
- Where viewers stop watching and why (with YouTube Studio)
- What to change on each video, from its own numbers
- What your comments ask for, counted and quoted
- What works on your channel, and what to make next
- Follow 100 channels like yours and see what takes off for them
- Check every title and thumbnail before you post
- A weekly email: what moved and what to make next
- 500 tool credits/month
- Priority support
Monthly, cancel anytime. Payment by Stripe. Plans include more runs of every tool.
Want to try Starter first? Get it free for 30 days by following ChannelGrade on X.