Kiroku.
Where speed meets serenity for your writing.
A minimalist, high-speed living library for writing, organization, and ideas. No clutter. No redundant popups. Instant markdown rendering and seamless edge persistence.
Free Sandbox · No credit card or account needed
Crafted for Uninterrupted Thought
Every interaction is calibrated for high-speed responsiveness and quiet elegance.
Fluid Typography Rhythm
Carefully tuned line-height, optical tracking, and responsive layout for effortless reading and natural writing flow.
Effortless, Fast Writing
Instant markdown preview, interactive math and live code blocks with zero lag and instant keystroke response.
Your notes. Your choice. Always.
Start writing locally. When you're ready to back up to the cloud, flip a switch. Change your mind? Your local draft stays safe. Never lose work, never feel locked in.
Structured 4-Tier Knowledge Tree
Simple, intuitive organization for your notes, guides, books, and personal knowledge base.
Library
Company or personal root workspace. Houses your complete ecosystem of books.
Book
Dedicated subject or project module with custom title and brand accent color.
Chapter
Logical folder grouping to organize documents into coherent topics.
Page
Distraction-free canvas with markdown, math formulas, live code, and media.
Big Architecture. Zero Bloat.
Engineered on lean foundations. Powered by early subscriber backing to scale dedicated AWS edge infrastructure and visual tools.
Mind Canvas
Bi-directional Node Graph & Visual Mapping
Rich Media Hub
Audio & Voice Memos
Infrastructure Roadmap & Bring Your Own Keys
From lean local foundation to dedicated enterprise AWS scale
Marketable Pricing Structure
Start writing in your serene sandbox for free, or power up with infinite scale and cloud backup.
Serene Sandbox
For solo thinkers, students, and casual note-takers.
✓ No credit card or account required
- Unlimited Local Notes: Write freely on your device
- Full Markdown & KaTeX Math rendering
- Instant auto-save to browser storage
- 4-Tier Knowledge Hierarchy (Library → Book → Chapter → Page)
- Mermaid Diagram support
- 1-Click Markdown & JSON Export
- Typewriter Focus Mode
Lite Power
For power users who want cloud sync, unlimited scale & advanced features.
✓ Early backer price — locked in forever
- Everything in Serene Sandbox
- Cloud Sync & Multi-Device Access
- Unlimited Cloud Storage
- PDF Export (Watermark-Free)
- Priority support
- All future features at zero surcharge
- Mind Canvas & Rich Media Hub (when live)
"Less noise. More clarity."
When your tools get out of the way, your ideas come alive. No account needed to start. Try Kiroku free today.