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AI Prompt Converter
Convert prompt framing between ChatGPT, Claude, Midjourney parameter tags, AI video generators like Veo and Kling, a JSON payload for API calls, or a reusable System Prompt. Runs 100% in your browser.
Input prompt to convert
Transformation Rules Applied:
- Enter a prompt above to view the applied transformation rules.
How prompt styles differ across AI platforms
Different AI tools are trained on different prompting modalities. What works in a conversational assistant like ChatGPT can degrade quality in Midjourney, while video models require cinematic motion directives:
| Platform Family | Core Syntax Pattern | What Must Be Adjusted |
|---|---|---|
| Conversational LLMs (ChatGPT, Gemini, Claude) | Natural language sentences, system roles ("Act as..."), and structural constraints. | Remove CLI flags (--ar, --v) and replace comma lists with coherent instructions and Markdown headings. |
| AI Image Generators (Midjourney, Flux) | Dense comma-separated visual descriptors (Subject, Lighting, Camera, Aesthetic) + parameter flags. | Strip conversational polite prefixes ("Please create an image of...") and append valid flags like --ar 16:9 --v 6.1 --style raw. |
| AI Video Generators (Veo, Kling, Seedance) | Shot-list structure: Camera framing and movement, continuous temporal action, lighting, and ambient sound cues. | Transform static visual scene descriptions into continuous actions with camera movement (e.g. Cinematic slow tracking shot). |
| Graphic & Typography (Ideogram) | Quoted text strings and clean vector/graphic design styling. | Isolate the exact words inside quotes so the model renders text clearly without spelling mistakes. |
| JSON (API calls to OpenAI/Anthropic) | A messages array with role/content pairs, plus model settings. |
Split any "Act as..." persona into a system message, put the task in a user message, and add placeholder model/temperature fields. |
| System Prompt (custom GPTs, Claude Projects, agents) | A standing persona and rules that apply to every future message, not just one request. | Turn a one-off instruction into "You are X. Your job is Y." plus guardrails for missing info and output format. |
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How does the Prompt Converter work?
The converter applies deterministic rules to translate phrasing between AI platforms: stripping conversational lead-ins when converting to Midjourney, structuring camera movement for video tools (Veo/Kling), or translating parameter tags into structured creative briefs for ChatGPT and Claude.
Does the converter communicate with an external AI API?
No. All conversions are performed client-side using JavaScript string parsing and regex heuristics. Nothing leaves your browser.
Which AI platforms are supported?
The converter supports Conversational LLMs (ChatGPT, Gemini, Claude), Image Generation models (Midjourney, Flux, Ideogram), AI Video tools (Veo, Kling, Seedance), a JSON output for API calls, and a System Prompt output for custom GPTs, Claude Projects and agents.
Why does Midjourney need different prompt formatting than ChatGPT?
Midjourney processes prompt tokens as visual weights rather than conversational instructions. Polite phrasing like "Can you make a picture of" wastes attention tokens on non-visual words, which can dilute image fidelity.
How does the JSON converter work?
It splits any "Act as..." or "You are..." persona into a system message, puts the rest of the task into a user message, and wraps both in an OpenAI/Anthropic-style messages array with placeholder model and temperature fields you can edit to match your own API call.
What does the System Prompt converter do?
It rewrites a one-off instruction into a standing persona and rule set ("You are X. Your job is Y.") with guardrails for missing information and output format, so it can be reused as a system prompt in a custom GPT, Claude Project, or agent — instead of retyping the same instructions every time.