Excalidraw
Design · Free · since 2020 · open source
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Excalidraw is a virtual whiteboard with a hand-drawn aesthetic for diagrams, sketches, and brainstorming. It handles hand-drawn style, real-time collab, open source, and embeddable, and it's best suited for anyone wanting quick hand-drawn diagrams. It has been around since 2020, giving it a 6-year head start in building out integrations and refining the product.
The core product is entirely free. Since it's open-source, you can self-host for free with no user limits.
pros
- Open source and transparent
- Hand-drawn aesthetic makes diagrams feel informal and approachable — great for early ideas
- Fully open-source — you can self-host, audit the code, and avoid vendor lock-in
- The core product is free with no paywalled essentials
cons
- May lack some advanced features
- Self-hosting is free but requires server maintenance and DevOps knowledge
- Fewer built-in features means you may need additional tools to cover gaps
- Output quality depends on your design skills — templates only go so far
top Excalidraw alternatives
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