In Markdown,Formula CalculationsBeautiful Document Conversion
An editor for bloggers, engineers, researchers, and technical writers. AI-powered, privacy-focused, custom styling output.
Everything You Need
Powerful features for professional document creation
Advanced Markdown
GitHub Flavored Markdown with LaTeX math equations, syntax highlighting, and diagram support (Mermaid, PlantUML).
Formula Calculation
Calculate directly within your markdown documents. Variable assignment supported. No calculator needed.
Spreadsheet Features
Rich table support included. Work with tables just like a spreadsheet application.
AI Integration
Built-in support for Claude, GPT, and Gemini. Use your own API keys with no subscription required.
Custom Styling
Full CSS editor for complete control over document appearance. Save and reuse custom themes.
Data History Management
Commit at the right moment with notes. Restore to any previous state anytime.
Diff Editor
View changes side by side and edit with diff comparison. Easy review of change history.
Export
One-click export to PDF, Word, and HTML with professional layouts that preserve all styling.
Privacy First
Your data stays local. No tracking, no analytics, no data collection.
See Primadoc in Action
Create beautiful documents with intuitive workflows
Intuitive Markdown Editing
Write comfortably with syntax highlighting and real-time preview.
No Calculator Needed
Calculate directly within your markdown documents. Variable assignment supported!
Spreadsheet Features
Rich table support included. Work with tables just like a spreadsheet application.
Chat with AI Daily
Integrate with Claude, GPT, and Gemini. Get help with research, editing, and more.
Your Own Style
Custom styling with CSS. Intuitive UI-based styling adjustments also available.
Go Back Anytime
Commit at the right moment with notes. Restore to any previous state with peace of mind.
Compare and Edit
View changes side by side and edit with diff comparison. Easy review of change history.
Multiple Output Formats
One-click export to PDF, Word, and HTML. Professional output with your custom styles preserved.
Your Data Stays Yours
Data stays local. No tracking, no analytics, no data collection. Use with confidence.
Available Models
The following AI models are available. Choose the best model for your needs.
| Vendor | Model | Type | Features |
|---|---|---|---|
| Anthropic | Claude Sonnet 4.5 | General | Advanced reasoning |
| Anthropic | Claude Haiku 4.5 | Fast | Fast response |
| Gemini 2.5 Pro | General | Long context support | |
| Gemini 2.5 Flash | Fast | Ultra fast processing | |
| Gemini 2.0 Flash | Fast | Ultra fast processing | |
| OpenAI | GPT-4.1 | General | Balanced performance |
| OpenAI | GPT-4.1 Mini | Fast | Cost efficient |
※ Use your own API keys to access all models completely free of charge.
※ With the Supporter plan, enjoy prepaid pay-per-use access to all models — no API key required.
Become a Supporter
Support development while enjoying easy access to all AI models
Support the ongoing development of Primadoc with the Supporter plan. Prepaid pay-per-use pricing with no API key setup or management required. Purchase and use tokens directly within the app.
News
View AllPrimadoc Website Launched!
The official website for Primadoc is now live. Stay tuned for the first release.
Download Primadoc
Available for Windows, macOS, and Linux