Your Private Note Vault
A powerful, web-based note-taking application that transforms your thoughts into an interconnected network of ideas. 100% private—all processing happens locally on your device. Write in markdown, link your notes, visualize your knowledge, and find anything—even in chaos. Semantic search understands concepts, OCR makes images searchable. Your data never leaves your device. Organization optional; finding information is not.
Powerful Features
Everything you need to build and navigate your knowledge base—and find what you need, even if you forgot where you put it
Advanced Markdown Editor
Write with a powerful CodeMirror-based editor supporting full markdown syntax, syntax highlighting, live preview, and math equations with KaTeX.
- Live markdown preview
- Syntax highlighting
- Code blocks with language support
- Math equations (LaTeX/KaTeX)
- Auto-save and version history
Wiki-Style Linking
Connect your thoughts with bidirectional links using double bracket syntax. Build a network of interconnected ideas that evolve with your thinking.
- Double bracket [[syntax]]
- Automatic backlink tracking
- Link autocomplete
- Folder-aware linking
- Broken link detection
Network Visualization
Visualize your entire knowledge base as an interactive network. Discover hidden connections and explore relationships between your notes.
- Interactive network layout
- Interactive navigation
- Filter by tags and folders
- Real-time updates
- Zoom and pan controls
Markdown & Data Freedom
Write in plain markdown—what you write is what you get. No format conversions, no hidden processing. Export your data exactly as you wrote it. Plain, transparent, human-readable. Your notes, your format, your control. Forever.
- Write in plain, standard markdown
- No format conversion—ever
- Export exactly what you wrote
- Import folders with attachments
- Complete transparency, zero lock-in
Hierarchical Tags
Organize notes with a flexible tagging system. Use nested tags to create hierarchies and filter notes by multiple criteria.
- Hashtag #syntax
- Tag autocomplete
- Nested tag support
- Tag-based filtering
- Tag statistics
Semantic Search
Search by concept, not just keywords. Too lazy to organize your notes? Don't know the exact words you used? No problem. Find relevant information even in your most chaotic, jotted-down, unorganized notes.
- Find notes by meaning, not just words
- Works on messy, unorganized notes
- No need to remember exact keywords
- Discover forgotten insights
- 100% local—your data never leaves your device
OCR - Searchable Images
Screenshot that article? Photo of a whiteboard? Image with text? Make it searchable. OCR isn't about extracting perfect text—it's about finding the image when you need it. Search your visual information just like your notes.
- Search text content within images
- Find screenshots and photos by content
- Retrieve the actual image, not extracted text
- 100% local—nothing sent to the cloud
- Works completely offline
Full-Text Search
Find anything instantly with powerful full-text search across all your notes. Support for boolean operators and advanced filtering.
- Instant full-text search
- Boolean operators
- Tag and folder filters
- Search history
Bidirectional Text Support
Gracefully renders mixed bidirectional text without messing up the visual order of the sentence.
No-Blink Cursor
By default, the cursor does not blink. No need to search for settings to disable the annoying blink. Enjoy a calm, distraction-free writing experience.
Bookmarks
Bookmark entire notes or specific sections within notes. Quick access to your most important content without searching.
- Bookmark notes
- Bookmark note sections
- Quick access sidebar
- Organize your workflow
Smart Autocomplete
Intelligent autocomplete for wikilinks and tags. Start typing and get instant suggestions for linking notes or adding tags.
- Wikilink autocomplete
- Tag autocomplete
- Folder-aware suggestions
- Fast navigation
Works Offline
After your first visit, the app is cached and works completely offline. Write, edit, and navigate your notes without an internet connection.
- Cached after first visit
- Full offline functionality
- Local storage
- Always accessible
Our Philosophy
� Complete Privacy: Everything Local
Your notes are stored as plain markdown files on your local device. All processing happens locally—OCR, semantic search, everything. We will never have a feature that sends your data to the cloud. No server sees your notes, ever. No cloud lock-in, no proprietary formats, absolute privacy. Your knowledge belongs to you, accessible with any text editor, version controlled with Git, backed up however you choose.
🔍 Search First, Organize Never (If You Want)
We're all lazy. We jot things down, paste snippets, dump thoughts—then never organize them. And that's okay. With semantic search, you don't need to remember exact keywords. With OCR, even your screenshots become searchable. Find what you need in the chaos, not despite it. Organization is optional; finding information is not.
⚡ Frictionless & Fast
Note-taking, retrieval, searching—everything should be instant and effortless. No barriers, no hassle. Just open your browser and start writing. Built for speed with local-first architecture, instant search, and a clean, distraction-free interface. Pick up where you left off from any device. Find information in the clutter. Write in plain markdown, no learning curve required.
Get Started
Everything you need to start taking notes and finding them later
Quick Start
- Visit app.obsisian.com from any browser
- Create your first note with the
+ New Notebutton - Start writing in markdown—your notes are saved automatically
- Use [[double brackets]] to link notes together
Creating Links
Link notes together using double brackets:
[[Note Title]]
For notes in folders, include the path:
[[Folder/Note Title]]
Links autocomplete as you type. View backlinks in the sidebar to see which notes reference the current note.
Using Tags
Add tags anywhere in your notes with hashtags:
#project #work/meeting
Use nested tags with forward slashes to create hierarchies. Click any tag to filter notes.
Customizable Hotkeys
Frictionless note-taking means working your way. Customize all keyboard shortcuts to match your workflow.
Change hotkeys for creating notes, searching, switching views, and any other action—make the app feel like an extension of your thoughts.
Markdown Guide
# Heading 1
**bold** *italic* ~~strikethrough~~
- Bulleted list
1. Numbered list
- [ ] Task list
```javascript
code block
```
___ _ _ _
/ _ \| |__ ___(_)___(_) __ _ _ __
| | | | '_ \/ __| / __| |/ _` | '_ \
| |_| | |_) \__ \ \__ \ | (_| | | | |
\___/|_.__/|___/_|___/_|\__,_|_| |_|
>> THE REAL STORY
// Why This Exists
Let's be honest. This app exists because of frustration. Real frustration.
$ Need to access notes EVERYWHERE. (comming soon)
$ Want it to work OUT OF THE BOX. No installing apps.
$ Need to access personal notes even at work with corporate
networks, you know (comming soon).
$ Tired of editors MESSING UP bidirectional text. Here?
Renders gracefully. By default.
$ Don't want to worry about privacy. Out-of-box encryption
on remote for sync (comming soon).
$ OBSESSED with pure text, open format, Local sotrage, Simple.
Intuitive.
$ And seriously... who decided cursor blinking was a good
idea?! Not doing that here (at least by default).
// The Philosophy
This is a simple, distraction-free, intuitive thing that does ONE THING and does it WELL:
> Just take notes and have them with you (comming soon).
No fiddling around. No complexity. No bloat.