Ready-made flow · Issue #1 covers with a masthead and caption box

Make Comic Book Covers with AI

Idyllic's AI comic book cover maker turns a series title and a hero into finished comic book covers: dynamic full-bleed art, the title in a masthead band, an issue box, a caption box and your creator credits, all set in editable type. Covers come at 1650×2550 px, the shape of a standard 6.625×10.25 in US comic.

3 covers in about a minuteMasthead and issue box in typePreview free
Size
1650×2550 px, the 6.625×10.25 in shape
You get
3 covers (up to 4) + the art without type
Image model
Seedream 5
Cost
27 credits for 3 covers, on Plus
Styles
Modern superhero, Golden age, Manga, Noir, Sci-fi, Horror

Real output · no retouching

One brief.
3 results.

The brief we typed
Series title
Night Courier
Who or what is on the cover?
A teenage bike messenger with glowing goggles racing across rooftops
Creator credits (optional)
Written by Sam Ortiz · Art by Lee Park
Style
Modern superhero
Run this brief yourself
Comic book cover made with Idyllic: Midair Rooftop Leap
Comic book cover made with Idyllic: Skyscraper Ledge Vigil
Comic book cover made with Idyllic: Full Throttle Sprint

How to make it

Four steps, about a minute of your time. These are real screens from the run above.

  1. 01

    Name the series

    Type the series title, describe who or what is on the cover, add creator credits if you want them (Written by Sam Ortiz · Art by Lee Park), pick a style and choose up to four covers.

    Open the flow
    us.idyllic.app/flows/comic-book-cover
    Name the series: Idyllic issue #1 covers with a masthead and caption box flow, step 1
  2. 02

    Watch the covers get drawn

    The AI writer plans a different dramatic moment for each cover and writes a punchy caption line. Seedream 5 paints full-bleed art that keeps the top clear for the masthead, then Idyllic sets the title with a 3D effect, the issue number, the caption and the credits. Preview the plan free.

    us.idyllic.app/flows/comic-book-cover
    Watch the covers get drawn: Idyllic issue #1 covers with a masthead and caption box flow, step 2
  3. 03

    Pick the cover

    The finished covers sit side by side with the art without type, so you can choose the strongest moment and keep the others as variant covers.

    us.idyllic.app/flows/comic-book-cover
    Pick the cover: Idyllic issue #1 covers with a masthead and caption box flow, step 3
  4. 04

    Edit and download

    Open a cover in Canvas to change the issue number, rewrite the caption, restyle the masthead or recolor the band. Download a PNG, or the Large export at 3300×5100 px for print.

    us.idyllic.app/flows/comic-book-cover
    Edit and download: Idyllic issue #1 covers with a masthead and caption box flow, step 4

Why it beats
a template

01

A cover, not just a splash image

Masthead band, issue box, caption box and credits come laid out the way comic covers are, with the art composed around them.

02

Drama in every concept

Each cover is a different moment or pose, from a rooftop leap to a standoff in the rain, drawn with bold inks and saturated color.

03

Six cover styles

Modern superhero, Golden age, Manga, Noir, Sci-fi and Horror each change the art and the mood of the lettering.

04

The real comic shape

Covers are 1650×2550 px, the proportions of a 6.625×10.25 in US comic, so the art drops into a printer's template with almost no cropping.

05

Variant covers in one run

Three takes on the same issue make natural A and B covers, or the start of a cover gallery for your series.

06

Ready to publish

Paid plans include a commercial license for comics you sell, and private mode keeps an unannounced series out of view.

What makes a comic book cover work

  • Show one moment with stakes: a choice, a threat or a reveal, not a pin-up.
  • Keep the hero's silhouette readable from across a shop or as a small thumbnail online.
  • Keep the top of the art calm so the masthead reads cleanly.
  • Keep the caption under eight words. Longer lines get skipped.
  • Use the same masthead font and color on every issue so readers spot the series.
  • For print, keep the credits and issue number at least 0.25 in inside the trim.

Comic book cover size and print specs

Idyllic cover1650×2550 pxPNG, the shape of a standard US comic
Large export3300×5100 pxAbout 500 ppi at 6.625×10.25 in
US comic trim6.625×10.25 inThe standard single-issue size
Print file with bleed6.875×10.5 in0.125 in on each side, about 2063×3150 px at 300 ppi
Safe area0.25 in inside the trimKeep the title, issue number and credits inside it

Printers vary slightly, so download your printer's cover template first. Scale the Large export to fill the bleed size; a sliver trims off the top and bottom, so check that the issue box and credits still sit inside the safe area.

Steal a brief

Each one opens the flow with the brief filled in. Change anything before you run it.

Night Courier #1, a teenage bike messenger with glowing goggles racing across neon rooftops

The Hollow Nine, a horror comic about a lighthouse keeper who hears voices in the fog

Starbound Rangers #3, a sci-fi crew holding the line on a crashing space station

Iron Petal, a manga series about a gardener who pilots a giant flower-shaped mech

Rain City Blues, a noir comic about a detective with a mechanical arm, written by Ana Cruz

Atomic Lark #1, a golden age heroine catching a falling zeppelin over a 1940s skyline

Thornwood, a fantasy comic about a girl who can talk to the forest, art by Lee Park

Mega Pup #1, a superhero corgi in a red cape, a birthday comic for a nine-year-old

Ghost Shift, a horror one-shot about night nurses in a hospital that is on no map

Questions

What makes a good comic book cover?

One dramatic moment with a clear hero, a masthead you can read from across the room, and a reason to open the book: a threat, a mystery or a reveal. Bold color and a strong silhouette help it stand out on a shelf or a phone screen.

Is it free to make comic book covers?

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 27 credits for three covers. The free plan also includes 3 free images a day in the image studio.

What size is a comic book cover?

The standard US comic trim is 6.625×10.25 in, and printers usually ask for 0.125 in of bleed on each side, making the file 6.875×10.5 in. Idyllic designs in the same shape at 1650×2550 px, and the Large export is 3300×5100 px, about 500 ppi at trim size.

Can I make covers in different art styles?

Yes. Pick Modern superhero, Golden age, Manga, Noir, Sci-fi or Horror, or describe a look in the cover field. Run the same issue in two styles to compare.

Can I add the issue number and creator credits?

Yes. Mention the issue number in your brief (it defaults to #1) and type the credits in the credits field. Both are set as real text, the credits in capitals along the bottom, and you can edit them any time in Canvas.

Can I use my own characters?

Yes. Describe them in the cover field: look, costume, colors and powers. Keep them original; existing superheroes and franchise characters belong to their publishers.

Can I print and sell my comic?

Paid plans include a commercial license. Use your printer's cover template, add the 0.125 in bleed and order a proof copy first.

Can it make the inside pages too?

This flow makes covers. For short stories told in panels, the comic strip flow lays out 3 to 6 panels with captions and speech bubbles on one page.

Your turn.

Preview the whole flow free. No credit card.

Start free