Can I publish with this cover?

You can use what you generate under the model provider's terms. Stores want exact sizes, so check their guidelines and resize the 2:3 image.

Yes. Every AI image tool here is free to use, with or without an account, and there is no watermark. You get 10 images a day without signing in and 30 a day with a free SandBase account. The allowance resets at midnight UTC.

Are my photos stored?

No. Your photo is sent to the image model for this one request and the result comes straight back to your browser. Nothing is saved to a gallery. A copy of the result is kept in a short-lived cache for 24 hours so that pressing the button twice does not use two runs.

Does it work on my phone?

Yes. The tools work in any modern mobile browser. Tap the upload area to pick a photo or take one with the camera, then download the result to your photos.

Free · no sign-up

Free AI book cover generator

Give the AI your title, your name and a genre and get a cover with a strong image and clean lettering, in the 2:3 shape ebooks and paperbacks use.

100% free
No sign-up
No watermark
Any shape

Sample result

Example

"The Last Lighthouse" by Mara Quinn: a thriller cover.

How to use the AI Book Cover Generator

Three steps, on a computer or a phone.

1. Describe itWrite what you want in a sentence or two. Tap an example if you need a start.
2. Pick your optionsChoose the style and the shape, then press the button.
3. Generate and downloadYour image arrives in about 15 seconds. Download it, or change a word and try again.

What people use it for

Self-publishingA first cover idea for an ebook or a paperback.
Drafts and pitchesShow a cover with a manuscript or a proposal.
Wattpad and blogsCovers for stories, series and newsletters.

More free AI image tools

All free, no sign-up, no watermark.

Need more control? Use the API

This tool runs on the SandBase image API. The API gives you every setting the free tool fixes for you.

Higher quality and sizequality=high, sizes up to 2K, and transparent backgrounds in one call.
Your own promptChange the template below, add reference images, or batch hundreds of images from your code or Agent.
No daily limitPay per image from one SandBase balance, with the same key for 2,000+ models and APIs.

API reference Image models and prices Get an API key

curl https://api.sandbase.ai/v1/images/generations \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"gpt-image-2.6-flare","prompt":"A book cover, portrait, for a suspense thriller with a dark, tense mood and a stark image book titled "The Last Lighthouse" by Author Name. …","size":"1536x1024","quality":"high"}'

The free tool uses this prompt template with your choices filled in.

Frequently asked questions

Can I publish with this cover?: You can use what you generate under the model provider's terms. Stores want exact sizes, so check their guidelines and resize the 2:3 image.
Is it really free?: Yes. Every AI image tool here is free to use, with or without an account, and there is no watermark. You get 10 images a day without signing in and 30 a day with a free SandBase account. The allowance resets at midnight UTC.
Are my photos stored?: No. Your photo is sent to the image model for this one request and the result comes straight back to your browser. Nothing is saved to a gallery. A copy of the result is kept in a short-lived cache for 24 hours so that pressing the button twice does not use two runs.
Does it work on my phone?: Yes. The tools work in any modern mobile browser. Tap the upload area to pick a photo or take one with the camera, then download the result to your photos.