Free online chart and diagram tools

6 tools

Diagram editors, flowchart and sequence-diagram generators, chart builders, mind maps and whiteboards. Check the export formats (SVG, PNG, source text) before you invest time, since they decide whether a diagram can leave the tool.

Showing 1–6 of 6

0.864score
Next AI Draw.io
Dayuan Jiang
Chat with an AI to generate and edit draw.io diagrams such as AWS architectures and flowcharts.
ArtifactAINo sign-up★ 36.5Kvisualization
0.847score
GitDiagram
ahmedkhaleel2004
Turns any public GitHub repository into an interactive architecture diagram.
ArtifactAINo sign-up★ 18.6Kvisualization
0.602score
ChartGemma
ahmed-masry
Ask questions about a chart image or have it summarized by a vision-language model.
ArtifactAINo sign-up★ 113visualization
0.577score
Qwen3 Embedding Scatterplot
webml-community
Embeds sentences with Qwen3 in the browser and plots them on a 2D scatterplot by meaning.
ArtifactAINo sign-upIn-browser★ 42visualization
0.477score
Gemini Bounding Box Viewer
Simon Willison
Asks Gemini to locate objects in an image and draws the returned bounding boxes on top.
ArtifactAINo sign-upvisualization
0.477score
Gemini Image Mask Viewer
Simon Willison
Requests segmentation masks from Gemini for objects in an image and overlays them for inspection.
ArtifactAINo sign-upvisualization