AI Flag Generator — custom flags for teams, clans and fantasy nations

Open Kenerate's Image Studio, pick GPT Image 2.5 Sunburst and a 3:2 ratio, and describe the layout, colours and symbol: “a flat flag design filling the frame, navy field, a white diagonal stripe from bottom-left to top-right, a gold eight-pointed star in the canton, no text, no pole”. Generate a few variants, keep the simplest, and upscale it for printing.

The best-known rules come from Good Flag, Bad Flag, a booklet by Ted Kaye for the North American Vexillological Association (NAVA): keep it simple enough that a child can draw it from memory, use meaningful symbolism, use two or three basic colours, use no lettering or seals, and be distinctive or be related. NAVA notes there are exceptions, but they should be made with care.

Flags are described as height to width. 2:3 is the most common shape for national flags, followed by 1:2 (the UK, Canada) and 3:5. The US flag is officially 10:19 under Executive Order 10834, though most flags sold are 3×5 ft. Switzerland and Vatican City use square flags, Qatar's is 11:28, and Nepal's isn't a rectangle at all. In Kenerate, generate at 3:2 or 2:1 and trim to the exact shape.

Yes — that's what it's best at. Describe what the group stands for and turn it into one symbol and two or three colours. If you already have a team logo or a family crest, attach it as a reference and ask for it in the centre of a simple field, then compare it with the original, since models can redraw a logo slightly.

Yes. Give the nation a short backstory in the prompt — “a mountain kingdom of miners, proud of its silver” — and ask for symbols that follow from it, such as crossed hammers or a silver peak on dark blue. Making a set? Use the same colours and layout for allied houses, the “be related” rule, so the flags look like they belong to one world.

For a fictional world, a historical what-if or a fan design, take inspiration — a colour scheme, a cross, a layout — but make it clearly your own. Don't make versions of real national flags meant to mock or demean a country or a people, or ones that copy extremist symbols: Kenerate's terms ban hate speech and violent extremism. Also note that under Article 6ter of the Paris Convention, a country's flag and emblems can't be registered as part of a trademark without permission.

Not directly. Kenerate's image models return raster images (PNG or JPG), not SVG. Flags are ideal for tracing, though: with flat colours, Inkscape's Trace Bitmap (multiple scans by colour) or Illustrator's Image Trace turns the PNG into clean vector shapes. Upscale first, keep the design to 2–3 colours, and tidy the paths before sending it to a printer.

Render at 4K, or upscale with Kenerate's Image Upscaler (up to 8K, 3 credits) — and for large flags, give the printer a traced vector file. Ask the print shop for its file size, colour and bleed requirements before ordering, because fabric printing varies by shop and material.

Free to start. A new Kenerate account gets 25 credits on sign-up — three GPT Image 2.5 Sunburst flags at 1K — and Qwen Image 3.0 is a free-plan model. After that, credits come in one-time packs that never expire, with no subscription. Downloads carry no watermark.