Apache ECharts
Apache ECharts，一款基于JavaScript的数据可视化图表库，提供直观，生动，可交互，可个性化定制的数据可视化图表。
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tldraw • very good free whiteboard
A free and instant virtual whiteboarding with online collaboration. No signup required. Works on all devices: mobile, tablets, and desktop.
FunBlocks AI – Sink into mind flow with AI
FunBlocks AIFlow: AI驱动的白板思维导图工具。集成GPT-4和Claude LLM，创意效率提升10倍。轻松探索想法，解决问题，快速学习。立即免费试用，激发无限创造力！