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AI prompt generator and enhancer

Say the things an engine is actually waiting to hear. Paste a rough idea and get it back as a fuller prompt for image, video or music. And whether or not you run it, the checklist underneath is the same one it works from — six things a prompt has to answer, printed on the page.

Enhance a prompt See the checklist

Free · No signup · Up to 2000 characters

The enhancer

Rough in, specific out

Pick what you are making, because the three want different things: an image prompt is a description, a video prompt is a description plus a movement, and a music prompt is closer to a list of tags than a sentence.

What are you making?

The three are written differently, so pick before you paste.

Your prompt

0 / 2000 characters

The checklist

What a prompt has to answer

Most weak prompts are not badly written, they are underspecified — the engine is left to invent the half you did not mention, and it invents something different every time. These are the 6 decisions worth making yourself.

Image

A still frame is a description. Everything you leave out gets invented.

Subject: Who or what, and in what state. “A woman” is a placeholder; “a woman shielding her eyes from low sun” is a picture.
Setting: Where it is, and roughly when. A time of day does more work than a list of adjectives.
Light: Direction and quality. Backlit, overcast, single hard source — this is what separates a photograph from a render.
Framing: How close, and from where. Close-up, wide, low angle, over the shoulder.
Style: A medium and a treatment: 35mm film, flat vector, watercolour. Name one, not five.
What to leave out: The thing the engine keeps adding that you do not want — text on the image, extra people, a logo.

Video

A clip is a description plus what changes over its length — including the camera.

Subject: Who or what is on screen, described the way you would for a still.
Action: What actually changes across the clip. A clip with no action is a photograph with a runtime.
Camera: Static, slow push, handheld, orbit. If you do not say, you get a slow drift you did not ask for.
Pace: Whether it is one continuous movement or a held frame. Fast cuts are an edit, not a prompt.
Setting and light: Where it happens and how it is lit, same as for an image.
Length: How long the shot runs. A five-second beat and a fifteen-second one are different shots, not the same shot cut down.

Music

A track prompt is closer to a tag list than a sentence. Genre first, always.

Genre: The first tag and the most load-bearing one. Everything else is read relative to it.
Mood: Two or three words. Driving, melancholy, warm — not a paragraph of feeling.
Instruments: The two or three that define it. Naming twelve gets you a mush of all of them.
Tempo and energy: Slow, mid, driving, or an actual BPM if you know it.
Vocal: Instrumental, or a voice and its character. Silence here usually gets you a vocal you did not want.
Structure: Where it goes: builds to a chorus, stays flat as a bed, ends cold.

Work down a column and you will write a better prompt than the enhancer will, because you know what you meant. The tool is for when you want it done in one step instead of six.

Before and after

What the difference looks like

The same idea, unspecified and then specified. Neither is longer for its own sake — the second one just answers the questions the first left open.

What people type

a cool coffee shop scene

What the engine can actually use

Interior of a small corner coffee shop in the late afternoon, low sun coming through the front window from the left and throwing long shadows across the counter. A barista in a dark apron wiping down the machine, seen from across the room at table height. Warm, slightly hazy, shot on 35mm film. No text, no signage.

Notice that nothing was invented about the intent — it is the same coffee shop. What changed is that the time of day, the light direction, the camera position and the medium are now decisions rather than accidents.

After the prompt

A prompt is only worth what you can run it on

Enhancing text is free here because the text is not the hard part. PrismPoster is where the prompt turns into an image, a clip or a track — and then into an edit, in the same place.

Run image, video and music prompts in one studio instead of three subscriptions.
Keep the prompt with the result, so a good one can be reused rather than rewritten.
Start free with 50 credits, no card, and judge it on what comes out.

The enhancer stays free and anonymous whether or not you ever open an account.

See how the Image Studio works

Questions

The ones worth answering

What does the enhancer actually change?

It keeps your intent and fills in what you left unsaid — the setting, the light, the camera, the things a prompt has to specify or the engine will decide for you. It does not add subjects you did not mention or change what you asked for. If it cannot improve on what you wrote, it says so rather than handing back a reworded version.

Is it free?

Yes, with no account and no email. It is the one tool on this site that costs us something per use, so there is a shared daily limit; when a day runs out the page says so and the checklist above still does the job. PrismPoster is the paid studio this sits in front of.

Which model does it use?

We do not publish that. The engine behind any given feature is chosen for the job and changed when a better one appears, so naming one would be out of date rather than informative. What is stable is the behaviour: your intent is preserved, and the output is bounded to a length the target engine actually accepts.

Do you keep the prompts I type?

The prompt is sent to be rewritten and returned; it is not attached to an account, because there is no account. Do not paste anything confidential into any free web tool, ours included — that is a rule worth keeping generally, not a hint about this one.

What if my prompt is already long?

It will be tightened rather than padded. Engines have real input limits, and past them the tail is silently ignored — which is worse than a short prompt, because you think you asked for something you did not. The upper bound here is 2000 characters.

Can I use the result in another tool?

Yes. The output is plain text and nothing about it is specific to us. It is written against how image, video and music engines generally read a prompt, so it transfers — and you are welcome to take it elsewhere.

AI lyric generator

When the words themselves are the thing you need written.

Free storyboard template

Plan the shots before you write a prompt for each one.

Social media sizes

The frame and safe area the result has to survive.

How the Image Studio works

What happens once the prompt is good: running it.

Everything in PrismPoster

Image, video, music, editing and export in one place.

Pricing

What the free plan includes and what the paid plans cost.

Free to start

The prompt is ready.Run it somewhere good.

PrismPoster turns it into an image, a clip or a track, and cuts the results together in the same place. Start free with 50 credits and no card.

Start free See everything it does