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Use our free tools and customizable templates to craft presentations, videos, graphics, social media designs, and much more—no design expertise required.

Enhance Apache OpenOffice. Pick your Template.

Simplify documentation and avoid heavy tools. Open source Visio Alternative. Commonly used for explaining your code! Mermaid is a simple markdown-like script language for generating charts from text via javascript.

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Free Project Management software : Replacing Microsoft Project In 193 COUNTRIES on all 7 CONTINENTS

Explore stunning data visualizations and the talented community that creates them on Tableau Public.

Excalidraw is a virtual collaborative whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.

A free and open source tool for data visualization.

The JavaScript library for bespoke data visualization

Simple yet flexible JavaScript charting library for the modern web

Discover the resources for adding interactive charts for browsers and mobile devices.

Plotly's Python graphing library makes interactive, publication-quality graphs. Examples of how to make line plots, scatter plots, area charts, bar charts, error bars, box plots, histograms, heatmaps, subplots, multiple-axes, polar charts, and bubble charts. Plotly.py is free and open source and you can view the source, report issues or contribute on GitHub.