Henro
Open-source brainstorming canvas that runs in the browser with a user-provided OpenRouter API key.
ProductivityResearch & AnalyticsOpen SourceOpenRouter
Henro is an open-source infinite canvas for brainstorming and thinking with AI. The hosted app asks users to paste their own OpenRouter API key, stores the key in the browser, and can also be run locally from its source code for additional control. It is a small, focused BYOK tool for visual exploration and ideation rather than a managed AI subscription service.
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