Char
The AI notepad that knows and works for you
Y CombinatorSummer 2025ActiveB2BProductivitySaaSProductivityOpen SourceAI
What they do
Problem
People waste time manually researching, drafting, and scheduling tasks from their notes and to-do lists instead of getting work done.
Solution
Char is an AI-powered notepad where checkbox to-dos are picked up by an agent that completes tasks like research, drafting, and scheduling on the user’s behalf.
Who it's for
Individuals and knowledge workers who manage daily notes and to-dos.
Founders
John Jeong
Co-founder, Co-CEO
Co-founder & Co-CEO @ Char
Deokhaeng Lee
Founder
CS @ Duke Formerly founder @ Hyprnote (S25), engineering @ Carousel Technologies (W24)
Yujong Lee
Founder
OSS enthusiast. Check out my work at: https://github.com/yujonglee
Company timeline
- Founded2023
- YC batchSummer 2025
- StatusActive
- Team size4 people
- LocationSan Francisco, CA, USA
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