PromptHub

Overview

PromptHub is a local-first desktop workspace for managing AI assets such as prompts, skills, rules, MCP entries, plugins, and agent configurations. It combines organization, version history, multi-model testing, local scanning, export, backup, and sync so reusable assets can be applied across multiple AI coding tools.

Key Features

• Prompt management with folders, tags, favorites, template variables, full-text search, Markdown rendering, and inline editing
• Skill store and one-click distribution to Claude Code, Cursor, Codex, Windsurf, and other mainstream tools, with local scanning and symlink or copy modes
• Agent workspace for skills, rules, MCP connections, plugins, model providers, and session history
• Version history for prompts, skills, and rules with diffs and rollback
• Sync and backup through WebDAV, S3, local snapshots, and self-hosted PromptHub Web, plus ZIP export and import
• AI testing and generation with multiple providers and models, including parallel model comparison and prompt or skill generation

Use Cases

• Centralize prompt libraries with variables and version history for repeated reuse and testing
• Distribute reusable skills to multiple AI coding tools from one workspace
• Manage agent-specific rules, MCP entries, plugins, and model configuration for projects
• Back up or sync AI assets across devices and keep a self-hosted snapshot for local or LAN access

Getting Started

• Download the desktop release for Windows, macOS, or Linux, or install the macOS cask with Homebrew
• Create a prompt with a title, description, system prompt, and user prompt; template variables appear as fillable fields when copied or tested
• Open the Skills tab to choose store skills or scan local directories for existing SKILL.md files
• Optionally configure WebDAV, S3, or a self-hosted PromptHub Web instance for sync or backup

Deployment & Requirements

• Desktop builds are available for Windows, macOS, and Linux; macOS packages use Developer ID signing and Apple notarization
• Building from source requires Node.js 24 or later and pnpm 9
• Self-hosted PromptHub Web can run with Docker on a NAS, VPS, or LAN and requires a JWT_SECRET of at least 32 random characters; registration should remain disabled after first user setup
• Desktop and self-hosted Web must be exactly the same version to create backups

Before You Adopt

• License: AGPL-3.0. Review its terms before using, modifying, or distributing the project.
• Private folders are hidden inside the app but are not encrypted on disk.
• WebDAV and S3 online sync allow only one active sync source to avoid multi-source conflict writes.
• Desktop and self-hosted Web backups require exactly matching versions, and restore is user-triggered after creating a local safety snapshot.
• The CLI is not installed automatically by the desktop app and must be packaged and installed from the repository.
• The Cloudflare Workers branch is not treated as a safe self-hosted backup endpoint until the desktop backup route is completed.