Obsidian
obsidian.md
Linked notes with graphs
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Related in Professional Templates & Deliverables
Aeon Timeline
aeontimeline.com
Complex timelines
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Draw.io / diagrams.net
diagrams.net
Diagrams and flows
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Zotero
zotero.org
Reference management
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CryptPad
cryptpad.fr
Encrypted collaboration
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Standard Notes
standardnotes.com
E2E encrypted notes
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