Will the text be correct?

The AI is told your exact words and is good at clean lettering. Keep headlines short; if a letter is off, generate again.

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 poster generator

Type a headline, pick a style and get a poster with clean, correctly spelled text: events, concerts, sales, travel and minimalist designs, in portrait or wide.

100% free
No sign-up
No watermark
Any shape

Sample result

Example

"Summer Nights", retro style, 2:3.

How to use the AI Poster 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

Events and gigsA poster for a show, a party or a launch.
Shops and salesSigns and promos for a window or a feed.
Rooms and wallsArt prints with a message or a title.

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 poster with the headline "SUMMER NIGHTS". Modern event poster with bold type and a vibrant color block layout. Strong visual hierarchy, cl…","size":"1536x1024","quality":"high"}'

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

Frequently asked questions

Will the text be correct?: The AI is told your exact words and is good at clean lettering. Keep headlines short; if a letter is off, generate again.
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.