About Markdown by Aiku
Markdown by Aiku is a privacy-first writing studio that runs entirely in your browser. Type Markdown on the left, watch a pixel-accurate PDF preview update instantly on the right, and download the finalized document—all without your content ever leaving your device.
Why it feels different
- 100% client-side: Your documents never leave your browser. All rendering happens locally using WebAssembly—no servers process your content.
- Powered by Typst: We use Typst, a modern typesetting system compiled to WebAssembly, for beautiful PDF output with proper typography.
- Real-time preview: See your formatted document as SVG pages that update as you type, showing exactly how your PDF will look.
- Custom fonts: Choose from curated Google Fonts (Lora, Inter, Roboto, Open Sans) loaded on-demand for both preview and PDF.
Technology
- Typst WASM — Markdown-to-PDF rendering compiled to WebAssembly
- Google Fonts — High-quality fonts loaded at runtime (Lora, Inter, JetBrains Mono, Noto Color Emoji)
- SVG Preview — Pixel-perfect page rendering in the browser
- Zero backend — Static hosting only, no server-side processing
Privacy by Design
Unlike traditional online editors, Markdown by Aiku processes everything locally. Your Markdown text is converted to Typst markup, rendered to PDF, and displayed as SVG—all within your browser's WebAssembly sandbox. We can't read your documents because they never reach our servers.
Have feedback or need a feature? Reach out at markdown-support@aiku.fr. We ship updates regularly and love hearing how people use the studio.