Free AI tools for images: match the tool to the job, then watch the credits

What makes image tools different from chat tools

Three properties decide whether a free image generator fits you, and none of them apply to chat assistants:

The budget is countable. Free chat is often unlimited; free images always have a number. Ideogram’s free plan gives 30 credits a week, and you can spend them by Thursday if you click Generate like a slot machine. Find the number before you fall in love with a tool.
The picture has a license. A chat answer is private text. An image you publish can end up on a poster, a product page, or a client invoice — and some free tools (Microsoft Designer is one) are licensed for personal, non-commercial use only. Read the use clause before the picture matters.
Text inside the picture is the failure mode. Every tool renders objects decently and words badly. Microsoft’s own FAQ warns that text in generated images may come out in the wrong language or misspelled. If your picture must contain readable words, test that specifically and ignore the rest.

Three free starting points, matched to the job

All three have a free tier with no card required, confirmed on their official pages on 2026-10-17.

You want pictures inside a chat app you already use: ChatGPT Free

OpenAI’s pricing page lists “limited image creation” on the Free plan, next to unlimited text chats with GPT-6. Official pricing page.

The right choice when the image is part of a longer task: a mockup for a paragraph, a diagram for your notes, a thumbnail for a draft. Treat the image generations as the scarce resource — describe the picture once, carefully, and iterate on the words instead of re-rolling the same scene twenty times.

You want a free canvas with styles, and no chat overhead: Microsoft Designer

Microsoft’s official FAQ says Designer is free to use with a Microsoft account, that frequent creation may need a subscription, and that it is licensed for personal, non-commercial use. AI-made images carry content-credentials metadata, and text in generated images may be misspelled or in the wrong language. Official FAQ.

Reach for Designer for greeting cards, social posts, invitations, and personal projects. Do not build your shop’s logo or a client’s flyer with it: the license says personal use, and a logo the terms don’t cover is a liability dressed as savings.

You want a counted weekly budget on a dedicated generator: Ideogram Free

Ideogram’s own documentation (vendor-verified October 15, 2026) gives free accounts 30 credits a week when they sign in with Google, Apple, or Microsoft — email-and-password accounts get no free credits. Everything you generate on the free plan is public, and when the credits run out you wait for next week or buy more. Official docs.

A counted budget is a feature, not a punishment. Thirty credits a week forces you to write the prompt once instead of re-rolling: change one thing per generation — the background, the style word, the camera angle — and you learn ten times faster than someone burning a thousand free generations on “make it prettier”.

The three costs hiding behind “free”

The credit budget. Ideogram’s 30-a-week is explicit; ChatGPT’s “limited” is not. For any tool, find the number before you build a workflow on it.
The license. Personal-use-only tools are fine for birthday cards and practice, and exactly wrong for client work. Check the terms page, not the landing-page headline.
The audience. Ideogram’s free plan publishes your generations publicly. Public-by-default is fine for experiments and embarrassing for anything sensitive: business drafts, unreleased products, anything showing a real person’s likeness. If you wouldn’t post it, don’t generate it there.

The 20-image test

Pick one tool and run it through a single focused session before you keep it. Generate 20 images of one real project: one poster, one thumbnail, one character. The rules: one variable changes per generation, you write down what you changed, and you save only the winners. Then score it: of the 20 attempts, how many are usable? How many credits did they cost? Did the words come out spelled right? If fewer than 5 of 20 survive, switch tools — prompt craft will not fix a free tier that is starving you. Run the same test on a second tool and keep the one with the higher survival rate, not the one with the prettier landing page.

Before the picture leaves your computer

A picture you cannot reuse is a sketch, not an asset. Check four things on any keeper:

Zoom to 100% and read every word letter by letter. Regenerate or repaint the text layer yourself — a misspelled headline is the one thing viewers notice.
Check who owns it. On Ideogram’s free plan the generation is public; on Designer the license is personal. Keep the original export — Microsoft’s FAQ notes the content-credentials metadata can be stripped by downstream processing.
If a client is involved, disclose the AI use and get the terms in writing. Some clients and platforms have their own AI rules; the provider’s terms are only half the picture.
Never upload private photos — family, clients, unreleased products — into a free image tool without reading its data terms. Once uploaded, you cannot fully control where they go.

Where the facts in this guide come from

Every number and limit above was read on the provider’s own page on 2026-10-17: OpenAI’s ChatGPT pricing page, Microsoft’s official Designer FAQ, and Ideogram’s own plan documentation. Nothing here comes from roundup articles or review sites. This guide has no affiliate links — if a link ever earns anything, we will say so in the sentence that carries it. Free tiers change, and the linked page is the only authority that counts. For the general beginner workflow, use the beginner workflow, the free AI tools overview, and the companion guides Free AI tools for students and Free AI tools for writing.