Hermes Markdown
A privacy-first offline prompt engineering tool.
What is Hermes Markdown?
Hermes Markdown is a privacy-first markdown editor built for prompt engineering. It runs entirely in your browser, keeping all data local to your device, with built-in templates, real-time token estimation and readability metrics, and a Notion-style slash command palette to help you draft, test, and refine AI prompts without sending data to the cloud.
Key features of Hermes Markdown
Local-first design with offline operation and data stored on your device
Notion-style slash commands for templates and workflows
Real-time logic guard with complexity and readability metrics
Copy Prompt that strips YAML frontmatter for clean, instruction-only prompts
Pros of Hermes Markdown
Privacy-first; data stays on your device
