LeanPrompts Studio

Stop copying and pasting prompts. Managing your AI templates in scattered text files or Notion documents ruins your workflow. Hunting for placeholder brackets and manually dragging the same reference files into new chats is a waste of time.

LeanPrompts Studio is a professional, local-first Prompt IDE that turns your AI interfaces into an execution engine. It separates prompt design from execution, letting you compile templates and inject them directly into ChatGPT, Claude, Gemini, DeepSeek, and others. The extension interface consists of a clean, dark-themed control center dashboard and a compact sidebar popup that docks beside your browser window.

How to use:
Simply open the LeanPrompts sidebar popup or use the global keyboard shortcut (Alt+Shift+Q) while visiting your favorite AI website. Select a prompt from your library, fill out any auto-generated variable fields, attach your files, and click "Inject" to instantly populate the AI input field and start the chat.

Key Features:
- Direct DOM Injection: Populates text fields and uploads files directly inside the active LLM tab, bypassing the system clipboard. Natively supports local offline Web-UIs like Ollama, LM Studio, and Jan.ai.
- Dynamic Templates: Define variables like {{Topic}} or dropdowns to auto-generate clean data-entry forms in your sidebar.
- Modular Snippets (@): Save personas or formatting rules as global snippets. Update them once, and they update in all templates.
- Prompt Chaining: Split complex tasks into sequential steps and inject them one-by-one to guide the AI and reduce hallucinations.

Privacy:
LeanPrompts requires no cloud accounts, no API keys, and stores all data entirely offline on your local machine.

Future Versions:
Planned updates for the optional Pro version include cross-device cloud synchronization and collaborative team workspaces, while the offline core remains entirely free.