PrompTessor

PrompTessor is an AI prompt workspace that generates, analyzes, optimizes, refines, and reverse-engineers prompts, then keeps the finished versions in a reusable prompt library.

What is PrompTessor?

PrompTessor is a prompt engineering workspace that turns rough ideas, existing prompts, images, videos, URLs, or text into structured prompts for large language models, image generators, and video generators. Its input is a plain-language request or source material; its output is finished prompt text, reusable templates with named variable placeholders, context notes, recommended models, and estimated token usage. It runs in the browser at promptessor.com, as a Chrome Web Store extension, and as an iOS app on the App Store, while the Google Play listing is marked "Coming Soon." The site states it is trusted by 37K+ creators, marketers, developers, and prompt engineers.

What makes PrompTessor stand out?

• Model-aware generators — dedicated generators for ChatGPT, Claude, Gemini, Grok, Llama, Mistral, DeepSeek, Perplexity, Cohere, Kimi, and Qwen, plus image models (GPT Image, Midjourney, Nano Banana, FLUX, Ideogram, Stable Diffusion, Runway Image, Kling Image, Wan Image, Seedream) and video models (Veo, Runway, Kling, Seedance, Wan, MiniMax, Luma, Pika, Vidu, PixVerse, LTX, Adobe Firefly Video, Midjourney Video, Grok Imagine Video).
• Prompt Generator — produces a ready-to-use prompt or a reusable template from a short brief, with output language selection and a live character count.
• Prompt Analysis — reports what works in a prompt, what needs improvement, and how to make it more effective.
• Prompt Optimizer — rewrites rough prompts into stronger versions tailored to a goal, format, or use case.
• Prompt Refinement — iterates on an existing prompt using feedback, formatting options, and versioned revisions.
• Reverse Prompt — reverse-engineers images, videos, URLs, or text back into prompts you can reuse and adapt.
• Prompt Library and History — saves, organizes, categorizes, and reuses prompts, and tracks every generation, optimization, refinement, and reverse prompt in one place.
• — a versioned REST API (), MCP integrations over OAuth for ChatGPT, Claude, Codex, Cursor, and VS Code, and signed webhooks such as with delivery retries.

Who should use PrompTessor?

• Marketers — build reusable campaign prompts for launch plans, content calendars, ad angles, positioning, and audience research.
• Content creators — turn topics, notes, transcripts, and examples into prompts for articles, scripts, captions, newsletters, and social posts.
• Developers — improve prompts for coding assistants, debugging, test planning, technical documentation, and architecture review, or call the API and MCP endpoints from their own tools.
• Product and team operations — keep approved prompts organized and findable across projects, categories, and repeatable team workflows for research, briefs, SOPs, and meeting summaries.

Use cases

• Marketing teams: generate a TikTok and Instagram campaign prompt that expands into content pillars, hooks, a four-week publishing calendar, creator collaboration ideas, and a KPI dashboard.
• Visual producers: create prompts covering composition, subject, style, lighting, camera, typography, and negative constraints for image models, or scene, shot, motion, continuity, timing, and audio direction for video models.
• Prompt library owners: save a working prompt as a template with named variable fields, store common values as presets, and reuse it across future launches.

How does PrompTessor work?

Work happens in a Prompt Builder Chat that keeps a versioned history of each iteration. A user describes the prompt they want, the tool returns a ready-to-use version, the user requests changes such as platform-specific execution details, and the final version can be saved as a reusable template with variable placeholders, presets, recommended models, and a token estimate. Saved prompts can then be sent to Analysis, Optimization, or Refinement.

Pricing

PrompTessor uses a freemium model. The Free tier costs $0 forever with a limit of 5 prompt usages per month and limited feature access. Paid monthly tiers are Pro at $10/month (1,500 prompt usages), Pro+ at $15/month (3,000 usages), and Max at $20/month (5,000 usages); all paid tiers include all features, all templates and the library, public API and MCP access, and priority support. Limited-time lifetime deals are listed at $149 (Pro), $219 (Pro+), and $299 (Max) as one-time payments with no recurring charges.

FAQ

Is PrompTessor free?

There is a Free plan at $0 that includes limited feature access and 5 prompt usages per month, plus access to prompt templates and the library. Paid plans start at $10/month for Pro with 1,500 usages, and limited-time lifetime deals are also listed.

Which AI models does PrompTessor support?

It offers prompt generators for LLMs and AI assistants including ChatGPT, Claude, Gemini, Grok, Llama, Mistral, DeepSeek, Perplexity, Cohere, Kimi, and Qwen, as well as image models such as GPT Image, Midjourney, FLUX, and Stable Diffusion, and video models such as Veo, Runway, Kling, Luma, and Pika.

Does PrompTessor have an API?

Yes. PrompTessor provides a versioned REST API with an endpoint for generating prompts, plus MCP integrations that connect compatible clients such as ChatGPT, Claude, Codex, Cursor, and VS Code through OAuth, and signed webhooks for asynchronous workflows.

Can PrompTessor reverse-engineer an existing image or video into a prompt?

The Reverse Prompt tool takes images, videos, URLs, or text as input and converts them into prompts you can reuse and adapt. It is one of several tools in the workspace, alongside generation, analysis, optimization, refinement, and the prompt library.

What are the platform limitations?

PrompTessor runs in the browser and is available as a Chrome Web Store extension and an iOS app on the App Store; the Google Play listing is marked as coming soon. Usage is metered per plan, from 5 prompt usages per month on the Free tier up to 5,000 on Max.