prompty.tools

Prompty.tools is a structured prompt builder for large language models. Instead of starting with a blank textarea every time you talk to an AI, you assemble prompts from reusable parts: a task, a persona for the model, the tones you want, an output format, and any constraints that matter. Prompty.tools stitches these parts into a single, consistent prompt and lets you save, version, and share it.

Key Features

• Six-part prompt builder — define task, persona, tone, output format, constraints, and collections independently, then combine them into one structured prompt in seconds
• Community library — browse, vote on, and favorite publicly shared personas, tones, outputs, and constraints created by other users
• Prompt Libraries — group related prompts into curated collections, keep them private or publish them with a shareable link and embed code
• Version history — every change to a building block is tracked so you can roll back, compare, and evolve prompts over time
• Browser extension for Chrome and Firefox — search your full library and copy any prompt in one click without leaving ChatGPT, Claude, or any other AI interface
• REST API with full CRUD for every entity — prompts, libraries, personas, tones, outputs, constraints, and collections
• NPM package (@prompty-tools/core) — TypeScript-first client for fetching prompts at runtime in Node, Next.js, or browser apps
• AI-powered improvements — proofread, refine, and get suggestions on prompts directly inside the builder
• Planned: prompt testing suite, MCP server, webhooks, and a Claude Code plugin

Pricing Structure

• Free — €0/month — unlimited public items, up to 5 private prompts/personas/tones/outputs/constraints, 5 favorites per type, 3 versions per prompt, 50 AI improvements/month, 1 API key, 20 API requests/day
• Pro — €4.99/month — unlimited private items, unlimited favorites and collections, unlimited prompt versions, 250 AI improvements/month, 25 API keys, 1,000 API requests/day. 30-day free trial included.
• Teams — €12.99/month — everything in Pro plus team sharing, 1,000 AI improvements/month, 100 API keys, 10,000 API requests/day. Coming soon.

See full plan details at prompty.tools.

Why People Use It

Writing a good AI prompt from scratch every time is slow, inconsistent, and hard to improve systematically. Prompty solves this by treating each component of a prompt — the role it should play, the tone it should take, the format it should return — as a saved, reusable building block rather than throwaway text. The result is that your best prompts compound over time instead of being forgotten in a chat window. For developers, the API and NPM package mean prompts can be fetched at runtime and kept in sync with the dashboard, so a non-technical teammate can update a prompt without touching the codebase. The browser extension makes the whole library accessible in one click from any AI tool, which removes the biggest friction point for heavy daily users: hunting for that prompt you wrote three weeks ago that worked perfectly.