LeanPrompts - Studio

Professional, local-first development environment for AI prompts.

Stop copying and pasting your prompts from Notion, Google Docs, or scattered text files. LeanPrompts Studio transforms your browser into a local-first Integrated Development Environment (IDE) for AI. Build dynamic templates, chain logical steps, attach reference files, and inject everything directly into any LLM interface. Unlike raw API wrappers, LeanPrompts operates directly on top of the free web interfaces of ChatGPT, Claude, Gemini, DeepSeek, and others. This means zero token costs, zero API bills, and full retention of native premium features like Claude's Artifacts, Gemini's Gems, or ChatGPT's Advanced Data Analysis. === 🛑 THE "COPY-PASTE" BOTTLENECK IS DEAD === AI is incredibly powerful, but modern web interfaces are primitive. If you use LLMs professionally on a daily basis, you know the friction: - The "Placeholder" Grind: You manually scan walls of text to find brackets like [INSERT TOPIC], risking typos and broken context. - The "Alt-Tab" Tax: Bouncing between your prompt repository, source code, and the chat window shatters your cognitive focus. - Fragmented Logic: Managing multi-stage "Chain of Thought" workflows across open tabs leads to severe context drift. - Attachment Amnesia: Dragging the same reference PDFs or Job Descriptions into new chats over and over is a repetitive chore. Standard text expanders only spit raw text onto your clipboard. They do not understand variables, and they cannot handle local files. LeanPrompts is the structural cure. === 🎛️ THE COMMAND CENTER (FEATURE ARSENAL) === LeanPrompts gives you absolute control over your AI interactions. It is built as a complete workspace: - 📦 Smart Variables {{ }}: LeanPrompts parses your templates and automatically generates custom sidebar input forms. Use {{Name}} for text inputs and {{Tone: Professional|Creative}} to build instant dropdown menus. - ⚠️ Required Fields {{! }}: Enforce input safety. Prefix a variable with an exclamation mark (e.g., {{!Target_Audience}}) to block injection and highlight empty fields in amber until you fill them out. - 🧱 Modular Snippets with @: Stop repeating identical instructions (like brand guidelines or coding rules). Save them as global Snippets. Type @ inside the editor to reference them. Any update to a central snippet propagates globally across all dependent templates. - ⛓️ Prompt Chains: Break down highly complex tasks into logical phases (e.g., Step 1: Extract, Step 2: Critique, Step 3: Format). Inject each step one-by-one to force structured, hallucination-free AI reasoning. - 📎 Local File Dropzones {{file: ...}}: Type {{file: SourceCode}} anywhere in your prompt to generate a local dropzone. LeanPrompts constructs native DataTransfer sequences to upload your PDFs, images, or documents programmatically, inserting the exact filename directly into your text. - 🤫 Secret Comments: Keep internal developer notes, prompt testing instructions, or explanations inside your workspace. Use standard %% obsidian %%, // line, or /* block */ comments—LeanPrompts strips them out before injection so the AI never sees them. - 📚 Built-in Knowledge Base: A Markdown-capable second brain for your prompt engineering. Document model quirks, save best practices, and use autocomplete [[WikiLinks]] to connect notes. Supports unencrypted local image embeds. - 🌓 Native Split-Screen: Align the LeanPrompts workspace and your LLM side-by-side with a single click. The window manager programmatically splits your display to eliminate overlapping windows. - 🕒 Version History, Diff-Viewer & Snapshots: Automatic snapshots protect your baseline before major edits. Review changes via a Git-style character-level code diff viewer and restore older versions instantly. - 🛡️ Import Rollback (1-Click Undo): Shared workflows can be exported as unified Workflow Bundles (JSON). When importing external bundles, the Smart Merge Engine auto-detects namespace conflicts (appending an "imported" suffix) and offers a 1-click Rollback to cleanly reverse any import. === 🔒 PRIVACY, SECURITY & TRUST (100% LOCAL-FIRST) === LeanPrompts is designed for professionals handling NDAs, proprietary code, GDPR requirements, and sensitive client data: - No Cloud Servers: LeanPrompts has no external database. Your prompts, templates, snippets, and histories live exclusively inside your browser's secure local IndexedDB sandbox. - No API Keys: It operates purely on top of your existing browser sessions. No credentials to leak, no data routed through external middleman servers. - 100% Offline Local AI Support: Working with highly confidential data? Connect LeanPrompts to local, offline Web-UIs (like Ollama, LM Studio, Jan.ai). We explicitly permit unencrypted http:// connections for loopback/localhost IP ranges to keep your workflow fully offline. - RAM-Guard Protection: A built-in 100MB batch limit on file attachments prevents browser Out-Of-Memory (OOM) crashes during Base64 serialization.