Leonardo's notebooks.
AI-augmented.
Leonardo da Vinci filled notebooks with observations, ideas, and connections across every discipline. LogMark is that practice realized - logging into markdown.
Fast capture that stays out of your way. A vault that compounds over time. AI that helps you see patterns in what you've captured.
Local-first. Markdown-native. Progressively intelligent.
The Real Problem
It's not just the 23 minutes you lose.
You're debugging a tricky issue when an idea strikes. You could capture it, but opening a note app breaks your flow. So you don't. And it's gone.
Worse: the insight from March that relates to today's block? You'd need to remember it exists, then search for it. Most connections never get made.
The problem isn't just capture speed. It's lost connections - the patterns your brain sees but can't surface at scale.
Built for How Developers Work
Capture without leaving your editor.
Ctrl+PageUp from anywhere. Type your thought. Hit Enter. You're back in your code in under a second.
One Hotkey. Anywhere.
Ctrl+PageUp summons the capture window from any application - your IDE, terminal, browser, or documentation. No window switching required.
Plain Markdown. No Lock-in.
Every capture is a markdown file in your vault. Read them with any editor. Grep them from your terminal. Version them with git.
+project Routing
Tag captures with +project notation. `t: fix memory leak +backend` routes automatically to your project notes.
Window Context
LogMark remembers which application you were in. Your notes automatically include context like "captured from VS Code - parser.ts".
Built for Deep Work
Your workflow. Your notation.
Different roles, same principle: capture first, structure later, let patterns emerge.
Developers
Ideas during debugging, decisions during review, blocks during implementation.
Data Scientists
Hypotheses during EDA, experiment decisions, model intuitions.
Security Analysts
IOCs, hunches, investigation threads during incident response.
Product Managers
User quotes, feature ideas, edge cases during calls.
Students
Lecture insights, study connections, paper notes.
Researchers
Claims, hypotheses, contradictions across literature.
The Loop
Capture. Route. Connect. Emerge.
LogMark doesn't force you to organize upfront. Capture raw, route with notation, let AI surface connections, watch patterns emerge.
Capture
Drop thoughts instantly. No decisions required.
Route
+project notation creates structure without effort.
Connect
AI surfaces related entries you'd forgotten.
Emerge
Patterns become visible across time.
Compounding Value
Value that grows with your vault.
The longer you use LogMark, the more valuable it becomes.
Speed
Capture without context switching. Return to flow in under a second.
Organization
Entries organize themselves via +project routing. No filing required.
Corpus
Your vault becomes searchable. Patterns start to emerge.
Intelligence
AI synthesis reveals connections across time. Your vault becomes a knowledge system.
Progressively Augmented
Start simple. Add intelligence.
LogMark works beautifully as a pure capture tool. Free forever at that level. When you're ready, AI augmentation helps you see what you've captured.
Core Capture
Free- Global hotkey capture
- Markdown vault storage
- +project routing notation
- Window context capture
- Unlimited captures
Free forever. No account required.
Augmented
Pro- Everything in Free
- Smart tagging suggestions
- Related captures surfacing
- Daily digests
- Pattern detection
Coming soon.
Your Data. Your Vault.
Plain files. Full ownership.
Every capture is a markdown file in a folder you control. No proprietary database. No cloud dependency. No lock-in.
Standard .md files in your chosen folder
grep, git, rsync - use any tool
Works offline. Syncs however you want.
No account required. No cloud signup.
Ready to capture?
Download LogMark and start capturing in under a minute. Free during alpha. Help shape what comes next.