draw.io
Creating diagrams like flowcharts and network diagrams, Creating product mockups for videos
It's a capable free diagramming tool, but diagrams can become outdated if not manually managed alongside other documents.
Keeping diagrams in sync with external design documents over time
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FIRST-HAND READS
What people reported, in their own words. Every line links to where it was said.
“I usually draw it with draw.io first because it's easy and quick”
POSITIVE · ease of use · Hacker News · 2026-05-03
“our engineering team was juggling Confluence for design docs and Lucidchart, draw.io for diagrams every single day. The diagrams would drift out of sync with the actual docs within weeks. New engineers joining the team had no single place to understand the system. And we were paying separately for both tools just to do one job”
NEGATIVE · features · Hacker News · 2026-03-02
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