Utilities · 4 tools
Whiteboards and sketching tools
Infinite canvases for thinking before designing: hand-drawn diagrams, quick flows and shared sketches. Several are open source and can be embedded in your own product.
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Frequently asked questions about Whiteboards and sketching tools
What are the best online whiteboards in 2026?
Designeer lists 4 whiteboards and sketching tools for diagrams and early ideas, each with a live preview, including Excalidraw, tldraw and Obsidian. They're great for quick sketches, flows and collaborative brainstorming.
Is there a free, open-source whiteboard like Excalidraw?
Yes. Excalidraw and tldraw are both free and open-source whiteboards with a hand-drawn feel, and you can even embed or self-host them. They're popular for diagrams, wireframes and workshop sessions.
Which whiteboard is best for diagrams and planning?
Excalidraw and tldraw suit fast, freeform diagrams and wireframes, while tools like Obsidian Canvas help connect notes visually for planning. Pick the sketching tool that matches how you think through early ideas.