Capture every
vein of thought
Leafvein is a minimalist micro-journal. Capture ideas as fast as sending a message, and let AI synthesize your daily, weekly and monthly thinking patterns.
AI Review
Users don't need more features — they need fewer, more precise ones #product
09:23## Book Notes — The Courage to Be Disliked
· Separation of tasks is the beginning of freedom
Yesterday 22:14Today your thinking centred on product strategy and the theme of "user value"...
Why Leafvein?
#Tag Organization
Freely organize thoughts with #tags. Smart sidebar aggregation lets you find any note instantly.
AI Smart Review
Daily, weekly and monthly AI summaries that reveal your thinking patterns and emotional shifts.
Activity Heatmap
See your journaling habit like a GitHub contribution graph. Build a streak, one note at a time.
Rich Media
Images, voice memos and links all supported. One note captures a complete moment.
Markdown Editor
Full Markdown support with live preview. Write structured thoughts or quick one-liners.
Private & Secure
Data encrypted and bound to your account. Only you can see your thoughts.
Built for every kind of thinker
Whether you're a creator, professional, or lifelong learner — Leafvein adapts to your workflow
Capture insights, AI connects the dots
Log interview findings and fleeting ideas with #tags during meetings. Let AI synthesize your weekly product thinking every Monday morning.
Tech thoughts + progress tracking, together
Architecture decisions, bug post-mortems, sudden insights — write in Markdown and watch your heatmap reveal your daily focus intensity.
Books, podcasts, courses — all captured
Jot passages that move you as you read or listen. At month's end, AI maps out the arc of your intellectual growth.
Loved by thinkers
Real experiences from real users
Three months in, the AI weekly review is a game-changer. Every Monday I open Leafvein and in 5 minutes my scattered thoughts are distilled into a clear narrative. No more scrambling before standup.
Chen Xiaoyu
Product Manager · ByteDance
The heatmap made me realise how many "nothing" days I was having. Now even logging two or three thoughts keeps the square green. That visual ritual has measurably improved my focus.
Lin Zeyuan
Indie Developer · Freelance
I tried Notion and Obsidian — too heavy. Leafvein is as fast as sending a message. Voice capture on the subway is my favourite — by the time I'm home, the transcript is ready. Zero ideas lost.
Su Qingqing
Content Creator · Bilibili