EPUB Cover Changer
Change or replace the cover image of your EPUB ebook files. View current cover and upload a new one.
Upload your EPUB file
Drag & drop or click to browse
Supports EPUB 2 and EPUB 3
Choose EPUB FileEPUB Cover Changer - Change Your EPUB Cover in Seconds Without Losing Privacy
Replace, add, or fix blank EPUB covers right inside your browser. Your file never leaves your device. Our EPUB Cover Changer works on iPhone, Android, Windows, Mac, and Linux, and gets your ebook ready for Kindle, Kobo, Apple Books, Nook, and Google Play in under 10 seconds.
Most EPUB cover tools online have annoying limitations that turn a 10-second task into an hour of frustration. We rebuilt the EPUB cover changer from the ground up to fix every issue readers complained about on Reddit, Stack Exchange, and the Calibre forums. Here is what makes this the last cover tool you'll ever need.
- 100% browser-based · No upload · No signup — your DRM-free library stays yours. Processed locally in your browser using the File API.
- Free forever · No watermark — no Pro upsell, no trial, no daily limit, no branded overlay on your books.
- No file size bloat — we replace the cover in place instead of repackaging your EPUB with junk data.
- Sets EPUB 2 & EPUB 3 cover tags — so Kindle, Kobo, Apple Books, Calibre, and every other reader recognizes your cover instantly.
100% Private, No Upload
Your EPUB and cover images are read by your browser's JavaScript and never sent anywhere. No server, no log, no analytics on your files. Perfect for DRM-free books you own and personal fanfiction libraries.
Works on Every Device
iPhone, iPad, Android phone, Android tablet, Windows, macOS, Linux, Chromebook — if it has a modern browser, it works. No app to install, no plugin to enable, no permissions to grant.
Instant, No Waiting Queue
No upload means no upload progress bar, no server queue, no rate limiting. Drop your file, pick a cover, download the result. The whole flow finishes in under 10 seconds even for large illustrated EPUBs.
Platform-Perfect Sizing
One-click presets for Amazon Kindle KDP (1600x2560), Apple Books (1600x2400), Kobo (1600x2400), Google Play Books (1600x2400), and Nook (600x930). Pick a platform and the cover is sized correctly the first time.
No File Size Bloat
We replace the cover image inside the existing EPUB archive instead of repackaging everything. The result: your final file is the same size as the original, plus the size of the new cover (typically 50-300 KB), with no junk added.
Sets Both Cover Tags
EPUB 2 readers look for the <meta name="cover"> tag. EPUB 3 readers look for the cover-image property. We set both, so Kindle, Kobo, Apple Books, Calibre, and every other reader recognizes your cover instantly.
Fit & Fill Resize Modes
Choose Fit to keep the entire image visible inside the cover frame, or Fill to cover the entire cover edge-to-edge with no black bars. No more letterboxing, no more ugly margins.
Free Forever, No Catch
No signup, no account, no trial, no Pro upsell, no watermark, no daily limit. Change one cover or one thousand covers — the tool is the same. We don't even ask for your email.
Add, Replace, or Remove
Upload a cover to add one to a blank book. Upload a new cover to replace an ugly one. Leave the cover field empty to strip the existing cover entirely. Three actions, one tool, no confusion.
How to Change an EPUB Cover in 5 Simple Steps
Open the Tool
Load this page in any modern browser — Chrome, Safari, Firefox, Edge, Brave, or Opera. The tool works the same on desktop and mobile. There is no app to install and no account to create.
Select Your EPUB
Click the dropzone or drag your EPUB file onto the page. The browser reads the file locally using the File API. Nothing is uploaded — your book stays on your device the entire time.
Choose a New Cover
Pick a JPG, PNG, WebP, or GIF image from your photo library, Downloads folder, or desktop. Leave this field empty if you only want to remove the existing cover without adding a new one.
Pick Your Platform
Select a target preset — Standard EPUB, Kindle KDP, Apple Books, Kobo, Google Play, or Nook. The tool resizes and optimizes your cover for that platform's exact dimensions automatically.
Download & Send
Click Download Updated EPUB. The new file has the cover replaced and both cover metadata tags set correctly. Send it to your Kindle via Send to Kindle, drop it into Apple Books, or sideload to Kobo.
EPUB Cover Sizes for Every Major E-Reader
Every e-reader platform has its own preferred cover dimensions and aspect ratio. Use the wrong size and your cover ends up cropped, blurry, or surrounded by black bars. Pick the right preset and your cover looks crisp on every device.
| Platform | Recommended Size | Aspect Ratio | Min Size | Max Size | Format |
|---|---|---|---|---|---|
| Amazon Kindle KDP | 1600 × 2560 px | 1.6 : 1 | 625 × 1000 px | 10000 × 10000 px | JPG, TIFF |
| Apple Books | 1600 × 2400 px | 1.5 : 1 | 512 × 768 px | 4000 × 6000 px | JPG, PNG |
| Kobo | 1600 × 2400 px | 1.5 : 1 | 512 × 768 px | 4000 × 6000 px | JPG, PNG |
| Google Play Books | 1600 × 2400 px | 1.5 : 1 | 512 × 800 px | 3000 × 4500 px | JPG, PNG |
| Barnes & Noble Nook | 600 × 930 px | 1.55 : 1 | 500 × 750 px | 2000 × 3000 px | JPG |
| Standard EPUB (universal) | 1600 × 2400 px | 1.6 : 1 | 500 × 800 px | 2000 × 3000 px | JPG, PNG, WebP |
| Kindle Fire / Kindle App | 1280 × 1920 px | 1.5 : 1 | 500 × 800 px | 2560 × 3840 px | JPG |
| PocketBook / Onyx Boox | 1200 × 1800 px | 1.5 : 1 | 500 × 750 px | 2000 × 3000 px | JPG, PNG |
Tip: When in doubt, upload a 1600 × 2400 px JPG cover. It satisfies every major platform's minimum requirements and looks sharp on every modern e-reader.
How to Change an EPUB Cover on Windows, Mac, or Linux
- Open Chrome, Firefox, Safari, Edge, or Brave and navigate to the EPUB Cover Changer page.
- Drag your EPUB file from File Explorer, Finder, or your file manager directly onto the dropzone, or click the dropzone to browse.
- Drag your new cover image (JPG, PNG, WebP, or GIF) onto the second dropzone, or click to browse your Pictures folder.
- Pick a target platform preset — Standard EPUB works for most readers, or choose Kindle KDP, Apple Books, Kobo, Google Play, or Nook for that exact size.
- Click Download Updated EPUB. The file saves to your Downloads folder with the new cover embedded and both cover metadata tags set.
- Send the file to your reader: drag into Apple Books on Mac, use the Send to Kindle web page, or sideload to Kobo via USB.
How to Change an EPUB Cover on iPhone or iPad
- Open Safari and navigate to the EPUB Cover Changer page. (Chrome on iOS also works, but Safari is fastest.)
- Tap Upload EPUB. The iOS file picker opens. Browse to your EPUB in Files, iCloud Drive, Dropbox, or any other storage app.
- Tap Upload New Cover. Choose a photo from your Photo Library, or browse Files for an image you saved.
- Pick a target platform — Kindle KDP for Kindle, Apple Books for your iPhone library, or Standard EPUB for universal use.
- Tap Download Updated EPUB. Safari asks where to save — pick Save to Files or share directly to the Kindle app or Apple Books.
- If sending to Kindle: open the share sheet from Files and pick the Kindle app, or email the file to your @kindle.com address.
How to Change an EPUB Cover on Android
- Open Chrome (or Firefox, Brave, Edge) on your Android phone or tablet and load the EPUB Cover Changer page.
- Tap Upload EPUB. The Android file picker opens. Browse your Downloads, Files, Google Drive, or any cloud storage app.
- Tap Upload New Cover. Choose an image from Photos, Files, or your cloud storage.
- Select your target platform preset — Kindle KDP, Apple Books, Kobo, Google Play, Nook, or Standard EPUB.
- Tap Download Updated EPUB. The file saves to your Downloads folder automatically.
- Open the file's share menu from Files → share to the Kindle app, send to your @kindle.com email, or sideload to your Kobo via USB.
How to Change an EPUB Cover for Kindle
- Open the EPUB Cover Changer on any device — desktop, iPhone, or Android.
- Upload the EPUB that is showing no cover (or the wrong cover) on your Kindle.
- Upload a new cover image. Pick Amazon Kindle KDP (1600 × 2560) as the target size for best results on modern Kindles.
- Choose Fill mode if your image already matches a portrait book cover, or Fit if you want to keep the whole image visible.
- Click Download Updated EPUB. The tool sets both the EPUB 2 meta name="cover" tag and the EPUB 3 cover-image property.
- Send the file to your Kindle using one of three methods: Send to Kindle web page (200 MB limit), Kindle app share (50 MB), or email to your @kindle.com address (50 MB).
- Sync your Kindle. The cover appears in your library within a minute. If it still does not show, restart your Kindle to force a thumbnail cache refresh.
Fix the Most Common EPUB Cover Problems
Searched Reddit, Calibre forums, and Stack Exchange so you don't have to. These are the exact fixes for the cover problems readers run into most often.
Kindle shows no cover after Send to Kindle
Your EPUB only declares the cover one way. Fix: Re-upload it through our tool — we set both the EPUB 2 meta name="cover" tag and the EPUB 3 cover-image property automatically.
Cover shows but is blurry on Kindle Paperwhite
Your cover image is too small. Fix: Use a 1600 × 2560 px JPG at 72 DPI minimum. Anything below 1000 px on the long edge looks soft on modern high-res E-Ink screens.
Black bars on left and right of cover
Your image's aspect ratio does not match the cover frame. Fix: Pick the right platform preset, then choose Fill mode to cover the entire frame edge-to-edge.
AO3 or fanfiction EPUB has no cover at all
Archive of Our Own downloads ship without cover images by default. Fix: Upload the blank EPUB, pick any cover image, choose the Standard EPUB preset, and download.
Cover shows in Calibre but not on the reader
Calibre displays covers from its own thumbnail cache, not the EPUB file. Fix: Run our tool to make sure the cover is actually embedded in the EPUB itself, then resend to your reader.
File size doubled after using another tool
Some online converters repackage the entire EPUB and add junk data. Fix: Use our tool — we replace the cover in place, so your file stays the same size (plus 50–300 KB for the new cover).
"Conversion failed" message on other sites
Server-side converters hit limits on file size, image format, or DRM checks. Fix: Our browser-based tool has no upload limit (200 MB EPUBs work fine), accepts JPG/PNG/WebP/GIF, and skips DRM checks.
Cover is the wrong image after editing
Some EPUBs have multiple images marked as covers. Fix: Our tool removes the old cover cleanly and replaces it with your new one, so there is no chance of the wrong image sticking around.
EPUB will not open after cover change
The mimetype file got compressed when the EPUB was repackaged. Fix: Our tool preserves the EPUB structure including the uncompressed mimetype entry required by the spec, so the file always opens.
How We Compare to Other EPUB Cover Tools
| Feature | EPUB Cover Changer (Ours) | OnlineConverter | Calibre (Desktop) | Apple App Store Tools |
|---|---|---|---|---|
| 100% browser-based, no install | ✓ Yes | ✓ Yes | ✗ No | ✗ No |
| Files never uploaded to a server | ✓ Yes | ✗ Uploaded | ✓ Yes | ✓ Yes |
| Works on iPhone & Android | ✓ Yes | ~ Partial | ✗ No | ~ iOS only |
| No signup or account required | ✓ Yes | ✓ Yes | ✓ Yes | ✗ Required |
| Sets both EPUB 2 & EPUB 3 cover tags | ✓ Yes | ~ One only | ✓ Yes | ~ Varies |
| No file size bloat | ✓ Yes | ✗ +400-800 KB | ✓ Yes | ✓ Yes |
| Platform presets (Kindle, Kobo, Apple) | ✓ Yes | ✗ No | ~ Manual | ~ Some |
| Completely free, no upsell | ✓ Yes | ✓ Yes | ✓ Yes | ✗ Paid |
| Fit & Fill resize modes | ✓ Yes | ~ Limited | ✓ Yes | ✓ Yes |
| Fixes missing Kindle covers | ✓ Yes | ~ Sometimes | ✓ Yes | ~ Varies |
| Removes cover without adding new one | ✓ Yes | ✗ No | ✓ Yes | ~ Some |
Built for Every Kind of Reader and Author
Frequently Asked Questions
Q. How do I change the cover of an EPUB file?
Open the EPUB Cover Changer in your browser, select your EPUB file, choose a new cover image (JPG, PNG, or WebP), pick the target platform preset (Kindle, Kobo, Apple Books, etc.), and click Download. The tool replaces the cover image, marks it as the cover using both the EPUB 2 meta tag and the EPUB 3 cover-image property, and gives you a clean EPUB ready to send to any e-reader. The whole process takes under 10 seconds and your file never leaves your device.
Q. Is the EPUB Cover Changer really free?
Yes. The EPUB Cover Changer is 100% free with no signup, no account, no watermark, and no hidden file size limits. You can change as many EPUB covers as you want, on any device, without paying. There is no Pro upsell and no trial expiration. We run the tool as a free utility alongside our other cover resizing tools.
Q. Do you upload my EPUB files to a server?
No. All processing happens locally inside your browser using JavaScript and the browser's built-in File API. Your EPUB and cover images are never uploaded to any server, never stored, and never seen by anyone but you. This is safer for DRM-free books you own and for fanfiction or personal reading material. You can verify this yourself by opening your browser's network tab — you will see zero file uploads while the tool runs.
Q. What is the recommended EPUB cover size?
The recommended EPUB cover size depends on your target platform. For Amazon Kindle KDP, use 1600 × 2560 pixels. For Apple Books, use 1600 × 2400 pixels. For Kobo, use 1600 × 2400 pixels. For Google Play Books, use 1600 × 2400 pixels. For Barnes & Noble Nook, use 600 × 930 pixels. For a standard EPUB cover that works across most readers, 1600 × 2400 pixels with a 1.6:1 aspect ratio is the safest universal choice. See our complete cover size reference table for full details.
Q. Can I change the cover of a DRM-protected EPUB?
No. DRM (Digital Rights Management) protected EPUBs purchased from Amazon, Apple Books, Kobo, Google Play, or other retailers cannot be edited by any legitimate tool, including ours. You can only change covers on DRM-free EPUBs, which includes files you created yourself, public domain books from Project Gutenberg, fanfiction downloads from AO3, and EPUBs where you removed DRM for personal use in jurisdictions where that is legally permitted. If your EPUB is locked with DRM, you will need to read it on the platform you bought it from.
Q. Why does my EPUB show no cover on Kindle after using Send to Kindle?
Kindle shows no cover when the EPUB does not clearly declare an image as its cover. EPUB 3 uses a cover-image property in the package file, while older readers use a meta name="cover" tag instead. If your file has only one of these, or has no cover image at all, Kindle will display a blank or generic cover. The EPUB Cover Changer fixes this by setting the cover in both standard ways, so Kindle, Kobo, Apple Books, and every other reader recognizes it. After running your file through our tool, resend it via Send to Kindle and the cover will appear within a minute.
Q. Does the EPUB Cover Changer work on iPhone and Android?
Yes. The tool works in Safari on iPhone and iPad, and in Chrome on Android. There is nothing to install. Open the page, pick your EPUB from the Files app or Downloads, choose a new cover from your photo library, and download the updated EPUB. You can then send it to the Kindle app, Apple Books, or any other reader directly from your phone. See our step-by-step device guides for iPhone/iPad and Android.
Q. What image formats can I use as an EPUB cover?
You can use JPG, PNG, WebP, and GIF images as EPUB covers. JPG is recommended for photographs and complex art because it produces the smallest file size at high quality. PNG is best when you need transparency or sharp text on the cover. WebP offers the best compression for modern readers and is fully supported by Kindle, Kobo, and Apple Books. GIF is supported but not recommended because of its limited color palette. The tool will optimize and embed the image correctly regardless of which format you upload.
Q. Will changing the cover increase my EPUB file size?
Only by the size of the new cover image, which is typically 50 to 300 KB after optimization. Unlike some online converters that add 400 to 800 KB of unnecessary data, the EPUB Cover Changer replaces the old cover cleanly and removes any duplicate or orphaned images, so your final file is often the same size or smaller than the original. If your new cover is significantly larger than the old one (for example, swapping a 100 KB JPG for a 2 MB PNG), the file size will increase accordingly — but the tool will never add bloat on top of that.
Q. Can I remove a cover from an EPUB without adding a new one?
Yes. Simply upload your EPUB and leave the new cover field empty, then click Download. The tool will strip the existing cover image and remove the cover metadata, leaving you with a clean EPUB that has no cover. This is useful if a book has an ugly or spoiler-heavy cover and you want your reader to display only the title text instead. Some readers, like Apple Books, will fall back to a generated text-based cover in this case.
Q. Is this a Calibre replacement?
For cover changes, yes. Calibre is a powerful all-in-one ebook manager that runs on desktop only and requires installation. If all you need to do is swap, add, or fix an EPUB cover, our tool does the job in your browser with no install, on any device, in a fraction of the time. For full library management, format conversion, and metadata editing across thousands of books, Calibre is still the best tool — and you can use both side by side.
Q. Can I batch change covers on multiple EPUBs?
The web tool processes one EPUB at a time, which is perfect for fixing individual books. For batch operations across hundreds of EPUBs, we recommend pairing our tool with Calibre's bulk metadata edit feature — Calibre can apply covers to many books at once, while our tool handles the one-off fixes and mobile use cases where Calibre is not available.
Ready to fix your EPUB covers? Join thousands of readers, authors, and fanfiction fans who finally have covers they love. No signup · No upload · No watermark · Works on every device.
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