Ready-made flow · Ebook and print covers that sell the story
AI Book Cover Generator
Idyllic's AI book cover generator turns your title, author name and genre into finished covers: genre-right art in 2:3, the title at the top, a short tagline and your name at the bottom, all set in editable type. You get three concepts at 1600×2400 px, the shape of a 6×9 paperback, ready to refine for Kindle or print.
- Size
- 1600×2400 px, 2:3 (6×9 in shape)
- You get
- 3 covers + the art without type
- Image model
- FLUX 3
- Cost
- 36 credits for 3 covers, on Plus
- Genres
- Fantasy, thriller, romance, sci-fi, literary, horror, business, children's
Real output · no retouching
One brief.
3 results.
- Book title
- The Glass Orchard
- Author
- Mara Lindqvist
- Genre
- Fantasy
- What is it about? (optional)
- A gardener discovers her orchard grows memories instead of fruit
How to make it
Four steps, about a minute of your time. These are real screens from the run above.
- 01
Enter the title and author
Type the book title and the author name, pick the genre (Fantasy, Thriller, Romance, Sci-fi, Literary, Horror, Business or Children's), and add a line on what the book is about if you want the art to hint at the story.
Open the flow
- 02
Watch the covers get designed
The AI writer plans a different concept for each variation that signals the genre at a glance, and writes a short tagline. FLUX 3 paints the art with space for type, then Idyllic sets the title and author in fonts like Cinzel, Playfair Display or Bebas Neue. Preview the plan free.
- 03
Compare at thumbnail size
The finished covers sit side by side with the art without type, so you can see which one still reads as a small thumbnail on a store page.
- 04
Edit and download
Open a cover in Canvas to change any word, font, effect or color, rewrite the tagline or move the author name. Download a PNG for your ebook, or as the front of a print cover.
Why it beats
a template
Genre at a glance
Readers decide in a second whether a book is for them. The writer plans each concept around your genre's conventions, from dark, condensed thriller type to painted fantasy landscapes.
Your title and name, set properly
The title and author go in exactly as you typed them, set as real text in display and serif faces. No garbled letters baked into the art.
Three concepts per run
Each variation is a different idea, not a recolor, so you can test covers with readers or your newsletter before you commit.
Art you can extend
The art without type comes with every run, which makes it easier to carry onto a spine and back cover, or reuse for ads and social posts.
Every layer editable
144 fonts, text effects like shadow, outline, gradient and curved text, plus AI edits: select part of the art and describe a change, erase something, or expand the picture.
Ready to publish
Paid plans include a commercial license for the covers you sell, and private mode keeps an unannounced book out of view.
What makes a book cover sell
- Make the title readable at thumbnail size. That is how most readers first see it.
- Follow your genre's conventions. A thriller that looks like a romance loses both audiences.
- Use one focal image, not a collage of plot points.
- Keep the author name in the same style across books so readers can spot the series.
- On print covers, keep text at least 0.25 in from the trim edge.
- Show two concepts to readers before you commit.
Book cover sizes and specs
| Idyllic cover | 1600×2400 px | 2:3 PNG, the 6×9 in shape |
|---|---|---|
| Kindle ebook (KDP) | 2560×1600 px ideal (height × width) | 1.6:1, JPEG or TIFF, under 50 MB; minimum 1000×625 px |
| Paperback front, 6×9 in | 1800×2700 px at 300 DPI | KDP asks for images of at least 300 DPI |
| Other common trims | 5×8, 5.5×8.5, 7×10 in | Different shapes; extend or crop the art to fit |
| Print full wrap | Back, spine and front in one PDF | 0.125 in bleed on all sides; spine width depends on page count |
The cover exports as PNG and KDP takes JPEG or TIFF for ebooks, so convert before you upload. For print, upscale the PNG 2× to 3200×4800 px and place it on your printer's full-wrap template.
Steal a brief
Each one opens the flow with the brief filled in. Change anything before you run it.
The Ashen Crown by Elena Marsh, an epic fantasy about a blacksmith's daughter who inherits a cursed throne
No Exit by J.T. Calloway, a thriller about a hostage negotiator trapped in a skyscraper elevator
Rain Check by Sophie Lane, a small-town romance between a bakery owner and a storm chaser
Murder at the Marigold Inn by Harriet Bell, a cozy mystery set in a Vermont bed-and-breakfast
Ship It Weekly by Dan Okoro, a business book on how small software teams release every week
The Last Light on Kepler Station by R.K. Vance, a sci-fi survival story aboard a failing space station
What the River Keeps by Noor Haddad, a literary novel about three generations of a Louisiana fishing family
Hollow House by Grant Wilder, a horror novel about a family whose new home has one room too many
Pip and the Moon Balloon by Lucy Fern, a children's picture book about a mouse who floats up to the moon
Questions
Is the AI book cover generator free?
You can preview the whole flow free: real AI writing with sample images, so you can check the plan. Running it for real is on Plus ($10.50 a month, billed yearly) and uses 36 credits for three covers. The free plan also includes 3 free images a day in the image studio.
Can it put my title and author name on the cover?
Yes. Both are set as real text, exactly as you typed them, in fonts chosen for the genre. Change the font, size or position in Canvas.
What size should an ebook cover be?
Amazon KDP's ideal is 2560×1600 px (height × width), a 1.6:1 ratio, as JPEG or TIFF. Idyllic designs at 1600×2400 px (2:3), well inside KDP's size limits; convert the PNG to JPEG before you upload.
Can I use an AI cover for self-publishing?
Yes. Paid plans include a commercial license. Check your store's current rules: KDP, for example, asks whether AI was used to make your cover or text when you publish.
Can I make a full wraparound cover for print?
The flow designs the front. A print cover is one PDF with back, spine and front plus 0.125 in bleed, and the spine width depends on page count. Place the front on your printer's template and use the art without type to extend onto the spine and back.
Can I keep a consistent look across a series?
Yes. Pick the same genre for each book, then open book one in Canvas and reuse its fonts, effects and layout for the next title.
What makes a good book cover?
It signals the genre instantly, has one strong focal image, and keeps the title readable at thumbnail size. Everything else supports those three.
Make something else
Everything you can make
Your turn.
Preview the whole flow free. No credit card.