Midjourney Prompt Builder

What this Midjourney prompt generator does

This Midjourney prompt generator turns a short brief into a syntactically correct prompt you paste straight after /imagine. You choose a subject, descriptors, a medium, lighting, and a style, then the tool assembles them as a comma-keyword string. Midjourney parses commas as weighted concepts, so order and separation matter.

It is a structured scaffold, not a finished image and not a live model. The builder runs in your browser, reads from fixed vocabulary tables, and never calls Midjourney or uploads anything. Treat it as the planning step that gets the wording and flags right before you spend a job.

How Midjourney reads a prompt

Midjourney does not parse full grammar the way a chat model does. It reads a prompt as a bag of weighted concepts separated by commas, then a set of parameter flags at the end. The first few keywords carry the most weight, so the builder always leads with your subject.

The structure the tool emits is deliberate: subject, then descriptors, then the medium, then shot size, then environment, then lighting, style, color, and mood. Parameters such as --ar and --v always come last, after every keyword, because Midjourney treats anything after a double-dash as an instruction rather than a concept.

The flags, in plain language

--ar sets the aspect ratio, such as 16:9 for a banner or 2:3 for a poster. --v selects the model version, while --niji swaps to the anime-tuned model. The version selector emits whichever flag is correct so you never mix them up.

--stylize trades literal accuracy for Midjourney’s own aesthetic on a 0–1000 scale. --chaos (0–100) widens how different the four grid images are from each other. --weird (0–3000) pushes toward unconventional results. The builder only appends a flag when you move its slider off the default, so a minimal prompt stays minimal.

--no is the negative prompt. Listing text, watermark, or blur tells Midjourney to suppress those elements. It is the cleanest way to remove a recurring artifact without rewriting the positive keywords.

When to use a keyword prompt versus a sentence

Midjourney rewards the comma-keyword format this tool produces, which is why it differs from a natural-language builder. Long flowing sentences tend to dilute the weighting, because Midjourney still reduces them to concepts but loses the clean separation that commas give.

Reach for a denser keyword stack when you want tight control over medium, lighting, and color. Loosen toward fewer, broader keywords when you want Midjourney to surprise you, and raise --chaos to widen the spread. The sweet spot for most briefs is six to ten well-chosen keywords plus two or three flags.

Pricing reality: what generating images actually costs

This tool is free. Cost enters when you render. Midjourney itself is a paid subscription, and every grid you generate consumes GPU time on your plan, so a prompt that lands in the first or second grid is a direct saving over re-rolling a vague one.

If you would rather generate stills inside a multi-model studio, Playcut plans start at $9/mo (Hobby, 500 credits) and run through Pro at $29/mo (2,000 credits), Studio at $79/mo (6,000 credits, 4 seats), and Agency at $149/seat/mo (10,000 credits per seat). Credit packs that never expire add 600 credits for $9 up to 5,000 for $65. Pricing is current as of May 2026.

The wider saving is the workspace. Inside Playcut you route a prompt through the image model best suited to the shot, keep brand kits and saved actors in one place, and reuse them across every image instead of rebuilding a look from scratch each time.

Where this fits in your workflow

Build the prompt here, confirm the keywords and flags read the way you want, then take it to Midjourney and run /imagine. Refine by adjusting one keyword or one flag at a time so you can tell what changed the result.

If you work across models, the same idea routes through the Playcut image generator and you can compare model behavior on the AI models page. For other image and video models in their own prompt grammar, the Imagen prompt builder, the Sora 2 prompt builder, and the Veo prompt builder cover Imagen, Sora, and Veo.

Frequently asked questions

Is this Midjourney prompt generator free and does it need a signup?

Yes. It is completely free and needs no account. The builder runs entirely in your browser, assembles the keyword string and flags from fixed vocabulary tables, and never uploads anything or calls a model. You can iterate on confidential briefs privately on your own device.

Does this tool generate the Midjourney image itself?

No. It is a structured scaffold builder, not a live model. It writes a copy-ready comma-keyword string plus the correct flags that you paste into Midjourney on Discord after /imagine, or into the web app. To render the image you still run it through Midjourney.

What do the stylize, chaos, and weird flags actually do?

--stylize (0–1000) controls aesthetic versus literal accuracy; higher is more artistic. --chaos (0–100) controls how varied the four grid results are. --weird (0–3000) pushes toward offbeat compositions. The sliders only append a flag when you move them off the default, so a clean prompt stays clean.

What version flag should I use?

Use the latest standard version (--v 7 as of May 2026) for photographic and general work, and switch to Niji 6 for an anime or illustrated look. The version selector emits --v for standard models and --niji for the anime model automatically.

Can I use the prompt in Playcut instead of Midjourney?

The keyword body pastes into most image generators, though the --flags are Midjourney-specific and other tools ignore them. Inside Playcut you route the same idea through the best model for the shot, manage credits in one place, and reuse brand kits and saved actors.