Monthly
FreeFree
Find the first change worth testing
€0
Monthly
Free thumbnail audit
- Clear diagnosis in minutes
- Preview in real YouTube contexts
- One recommendation you can use
- No channel connection required
Janus finds the published videos most likely to grow, shows you which thumbnails are holding them back, and helps you create a stronger version. Not live yet — join the waitlist and lock in 50% off forever.

Stop guessing what to change
1. Connect once
Bring in your real YouTube data securely. No spreadsheets or manual audits.
2. See the hidden wins
Get a ranked list of published videos that still have demand but are losing clicks.
3. Know what is costing clicks
See the exact reason a thumbnail is underperforming and what to improve first.
4. Create a stronger option
Generate focused alternatives built around a clear reason, not a random prompt.
5. Change it and measure
Compare performance before and after so you know whether the change worked.
6. Make every next choice easier
Turn every result into a repeatable advantage for your next thumbnail.
Less guessing. Better decisions.
“Janus found 12 videos worth updating that I had completely forgotten about.”
“I stopped guessing which thumbnails to change.”
“Cleaner composition worked better for tutorial-style videos.”
See the value before you pay
Upload one thumbnail and get a clear diagnosis, the biggest issue, and the first change to test. Free, fast, and no channel connection required.
Connect once
Bring in your real YouTube data securely. No spreadsheets or manual audits.
See the hidden wins
Get a ranked list of published videos that still have demand but are losing clicks.
Know what is costing clicks
See the exact reason a thumbnail is underperforming and what to improve first.
Opportunity Score
Audit one thumbnail without paying. When you are ready to uncover opportunities across your channel, choose the plan that fits your catalog. Annual includes 2 months free.
2 months free
Monthly
FreeFind the first change worth testing
€0
Monthly
Free thumbnail audit
Monthly
Stop choosing thumbnails in the dark
€29
Monthly
15-25 thumbnails
Monthly
RecommendedTurn every week into another chance to grow
€59
Monthly
50-80 thumbnails
Monthly
Make your entire catalog work harder for you
€179
Monthly
100-165 thumbnails
Thumbnail diagnosis
Can viewers tell what the video is about in one glance?
Does the thumbnail stand out in the feed?
Does it promise something concrete?
Does it create enough tension or question?
Do title and thumbnail work together?
Are too many elements competing?
FAQ
The full platform is launching very soon. Join the waitlist for launch updates and 50% off forever. The free thumbnail audit is live now with no account required.
You get an email when Janus Thumb opens and a lifetime 50% discount locked to your email. You can still run a free thumbnail audit while you wait.
No. Generating another image is easy. Janus first finds the videos where a better thumbnail can matter, then helps you create and measure the right change.
No. Janus focuses on your own channel data, your content, and your performance patterns.
Not to start. Audit a thumbnail free without connecting anything. Connect your channel only when you want Janus to find opportunities across your full catalog.
It looks for videos that still earn attention but lose too many potential clicks, then ranks them by how worthwhile an update is likely to be.
It works best when you already have published videos and enough data. Small channels can use audits and generation; growing channels get the most from backlog analysis.
Today Janus is focused on YouTube thumbnails. The system is being built around content performance optimization for future platforms.
Launching very soon
Not live yet. Join the waitlist for 50% off forever — or try a free thumbnail audit now.