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Char

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The AI notepad that knows and works for you

Summer 2025Founded 20234 peopleSan Francisco, CA, USA

About

Char is a daily notepad that finishes your todos for you. Type a checkbox, and an agent picks it up โ€” researching, drafting, or scheduling on your behalf. Stay in command. Char does the work.

Founders ยท 3

John Jeong
John JeongCo-founder, Co-CEO

Co-founder & Co-CEO @ Char

Deokhaeng Lee
Deokhaeng LeeFounder
๐ŸŽ“ Duke

CS @ Duke Formerly founder @ Hyprnote (S25), engineering @ Carousel Technologies (W24)

Yujong Lee
Yujong LeeFounder

OSS enthusiast. Check out my work at: https://github.com/yujonglee

Launch

Launched on Y Combinator ยท Aug 2025
View launch post โ†—

We help teams craft personalized meeting notes while keeping full control of their data

Hyprnote is an open-source AI notetaker for enterprises that transcribes and summarizes meetings while ensuring all data stays on-device or on-prem. It emphasizes private-by-default data control and enterprise compliance (HIPAA, SOC2, ITAR, FedRAMP-friendly) with on-device/air-gapped deployment.

Formerly โ€œHyprnoteโ€

B2BProductivitySaaSProductivityOpen SourceAIAI Assistant

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