Batch AI Image Generator

This is a downloadable windows program to mass-create AI images using free or low-cost AI image generators hosted by Cloudflare.com or Pollinations.ai.

A text file of prompts goes in, a folder of images comes out.

Write your image ideas one per line in a .txt file. Point this program at it. Come back to a folder of finished images, each with its full generation details saved beside it.

You have a list of image ideas — one hundred, one thousand — and you want all of them rendered without babysitting a web page. This tool takes that list as a plain `.txt` file, appends a shared style description to each line, sends them to a cloud image API, and downloads every result into a folder with a `.json` metadata file beside it.

This program will essentially save you hours of time and manual labor, especially on tasks that are mundane like backgrounds, textures, sprites, etc.

Prompting skills are still necessary for good results, so if you want to learn how to prompt like a pro or want ready prompts by the thousands, check out my text generators too:

https://itch.io/c/5887279/text-generators

And the default is genuinely free

Not a trial. Not a credit balance that runs out on Tuesday.

• Cloudflare Workers AI has a free plan — depending on the model, you can generate about even 160 images per day at a respectable quality.
• Pollinations.ai also has a free plan - but is much slower and more limited than Cloudflare, but works as an alternative.
• You get pretty good general purpose models, including Dreamshaper 8, Flux 2 Schnell/Klein, Stable Diffusion Lightning, and SDXL. 

The biggest point of this software is to use minimal cost models to make large batch operations possible and affordable.

What it does

• Batch from a plain text file — one prompt per line, blank lines skipped. Notepad is a sufficient authoring tool.
• A shared style suffix appended to every prompt, so you write your art direction once instead of a thousand times. Painterly and Comic presets included, and you save your own as new presets.
• Six models across two providers, with a live cost calculator that updates as you change model, aspect ratio and quality tier.
• Dry run mode — the complete job list and total cost with zero API calls. Know before you spend.
• Crash-resumable. Job state lives in a SQLite database beside your output. Close it, reboot, come back tomorrow — finished images are skipped, not regenerated.
• Sidecar metadata — a .json beside every image with the original prompt, the final prompt, model, seed, size, timestamp and cost estimate. Reproducing any image is trivial.
• Black-image detection. This one matters more than it sounds: content-filtered prompts come back from the API as 200 OK with an all-black frame and no error field. A tool that doesn't check reports a flawless 100% success rate and hands you a folder of black rectangles. This one decodes every image and marks flat-colour results as permanent failures.
• Tile-optimal sizes. Cost moves in steps, not smoothly — so at the Standard tier, 16:9 gives you 1536x864, which is 44% more pixels than 1280x720 for exactly the same price. Every size offered is the largest one that fits its price bracket. You can always use XnConvert if you need to downscale your images en masse afterwards.
• Polite by default — low concurrency, a deliberate gap between requests, proper 429 backoff. Free tiers are a courtesy and this doesn't abuse them.
• A command-line front end onto the same engine, for scheduled tasks and headless machines.

Requirements

Windows 10 or 11, and an internet connection. A potato computer will work fine, the actual image gen happens in the cloud, so this makes mass image generation possible for the rest of us.

You will need a cloudflare.com account and a optionally a pollinations.ai account to access their services. This involves creating an API token/key, which is very easy even for a layperson.

Worth noting that the provided image models are censored and sanitized, so you may likely only create SFW content. Anything related to gore, erotic or banned imagery may return as a useless black square. 

There may also be a risk if you try to abuse its rules that you will get banned by the providers, so please use their services respectfully.

Your API keys/tokens are safe

Entered in the program, saved to a file beside it that's restricted to your Windows user. Never written to the config, never stored in the job database, never embedded in image metadata. The guide walks you through creating a Cloudflare token from the "Read all resources" template — read-only is genuinely sufficient for everything here, including the paid models, so a leaked token can't be used to change anything you own.

The source is included and published with the program, so you don't have to take my word for any of that.

Feedback and Suggestions are welcome

If you love the batch feature of the program, but wished it supported another AI model that is provided via a known API service, feel free to leave a message in the comments and I might add it if its feasible.

Do note that the best image models are often expensive and can cost a lot even for a handful of images, so make sure you actually would be able to afford using it once its implemented.

I personally try to focus on low-cost solutions that provide the best amount of value for batch operations, but if you have money to burn on those services, I can include them too.

This program itself is a one-time payment only so I only get what you initially paid for and you keep it forever. Any other costs will be rendered by API service providers if you choose to exceed their free plan limits and you deliberately enable billing by usage yourself.

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