Test and preview your book covers directly on Amazon search pages in real-time. For self-publishers.
Users
74
+7 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#94K
#79K among extensions
Version
1.2.1
updated 26 Jul 2026
Users
monthly, 7 months
Latest, 19 Oct 2026:74 usersMove the mouse over the chart for any month
Ratings count
monthly, 7 months
Latest, 19 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About CoverTest Pro
https://covertestpro.com
🎉 Version 1.2.0 -!- Shareable Preview (21/07/2026)
Test your book covers on real Amazon pages before publishing. See how readers will see your book and outsell the competition.
Detailed Description:
📚 CoverTest Pro - The Ultimate Book Cover Testing Tool for Self-Publishers
Stop guessing how your book cover will look on Amazon. See it in action before you publish!
CoverTest Pro lets you preview and test your book covers directly on Amazon search result pages, exactly where readers will discover your book.
Make data-driven design decisions and choose covers that stand out from the competition.
✨ KEY FEATURES
▸ Quick Simulation:
Test covers instantly on Amazon without creating a project, just upload images and simulate.
▸ Real-Time Preview
Replace any book cover on Amazon search pages with your own design. See exactly how your cover appears alongside competing titles.
▸ Shareable preview (new in 1.2.0)
Generate a public link with your covers and send it to readers, colleagues or
your beta reader group. They vote and comment right from their browser, with
nothing to install — and you see the results inside the extension.
▸ A/B Comparison Mode
Compare multiple cover versions side-by-side. Add notes and ratings to track which designs perform best visually.
▸ Smart Notes & Ratings
Annotate each cover version with notes and ratings. Track your design decisions, capture feedback, and never lose sight of what works and why.
▸ Comparison Focus Mode
Isolate two covers in a distraction-free view for direct comparison. Spot the subtle differences that make one design outperform another.
▸ Amazon App Emulation
Preview how your covers look in the Amazon mobile app, directly from your desktop browser. Ensure your design stands out on every platform.
▸ Version Management
Organize multiple cover iterations in groups. Keep track of your design evolution and easily switch between versions.
▸ Project Organization
Create projects for each book. Manage multiple titles with separate cover collections, notes, and rankings.
🎯 PERFECT FOR
• Self-published authors on Amazon KDP
• Book cover designers
• Publishers testing cover variations
• Marketing teams optimizing book visibility
🔒 PRIVACY-FOCUSED
• All processing happens locally in your browser
• Your images never leave your device
• No account required for basic features
• No tracking or analytics on your designs
Supported Amazon marketplaces:
amazon.com, .co.uk, .ca, .com.mx, .com.br, .de, .fr, .it, .es, .nl, .se, .pl, .com.be, .com.tr, .ae, .sa, .eg, .in, .co.jp, .sg, .com.au, .cn
🚀 HOW IT WORKS
1. Create a project and upload your cover designs
2. Search for books in your genre on Amazon
3. Replace their covers with yours and see how you stack up
4. Compare, rate, and perfect your design!
💡 Pro Tip: Search for bestsellers in your niche, then replace their covers with yours to see how you compete at a glance!
🚀 Start testing your covers today — your next bestseller deserves the perfect cover!
Website: https://covertestpro.com
What's new in this version?
Version 1.2.1 - (bugfix release) 25/07/2026
Fix: analytics events were getting queued and lost when the service worker was terminated
Fix: users are now notified when no selectable product is found on the page
Version 1.2.0 - Shareable Preview - 21/07/2026
You can now generate a public link with your covers and send it to readers,
colleagues or your beta reader group: they vote and tell you which one they
prefer right from their browser, with nothing to install.
• Shareable preview: create the link in 4 guided steps, with the questions
you want to ask about each cover version
• Real-time results: see votes, comments and visit counts inside the extension
• Downloadable card to share on social media or in your newsletter
• Full control over your links: close the voting or delete a preview whenever
you want
• Waiting list for the reader testing pool
• Welcome guide on first launch
🔧 Improvements
• Your license no longer signs you out when you're temporarily offline or your
connection is unstable
• More secure license verification
• Various fixes to the popup interface
The free plan includes one active shareable preview at a time;
Premium has no limits.
ℹ️ This version may ask for the "Downloads" permission: it is only used to save
your preview card, and it's requested the moment you click "Download". No other
permission has changed: if you already have the extension installed, the update
arrives without interruptions.
Version 1.0.10 - 26/05/2026
- Privacy controls: new toggle in Settings to disable anonymous telemetry at any time (available in English, Italian and Spanish).
- License flow stability: more reliable handling of license revocations, replacements and re-activations across devices.
- Bug fixes: fallback for Amazon product rating on pages where the standard selector was unavailable; cleaner Settings layout (removed expiration badge, repositioned license counter); faster popup open ti…
Growth
Window
Users
Change
Ratings
Rating
7 days
+1
+1.4%
0
0.00
30 days
+7
+10.4%
0
0.00
6 months
+50
+208.3%
0
0.00
Chrome Web Store search rankings
Where CoverTest Pro appears when people search the store, with the 30 day change
https://*.amazon.com/*https://*.amazon.co.uk/*https://*.amazon.ca/*https://*.amazon.com.mx/*https://*.amazon.com.br/*https://*.amazon.de/*https://*.amazon.fr/*https://*.amazon.it/*https://*.amazon.es/*https://*.amazon.nl/*and 13 more
Alternatives to CoverTest Pro
Extensions that rank for the same store searches or share the Tools category, ordered by users