Side by side

Helios vs Sigma.js

Both stand on graph visualization tools software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Sigma.js offers a focused browser library for interactive Graphology visualizations, with WebGL performance, framework support, and extensibility packages. Developers should prepare graph data and choose npm when production bundle size makes tree-shaking important.

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The facts

	Helios	Sigma.js
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Linux, Mac, Web, Windows	API, Web
Lowest paid plan	Not published	Free or on request
Plans published	None	1
Maker	Not published	Not published
Website	heliosweb.io	sigmajs.org
On graph visualization tools software	#11 of 25	#7 of 25

Helios: what it does well

Sigma.js: what it does well

Free MIT-licensed library
WebGL rendering for large graph displays
Built-in pan, zoom, hover, and touch interactions
Works with React, Angular, Vue, or vanilla JavaScript
Companion packages add maps and image export

What to know first

Requires Graphology graph data
A sized container DOM element is required
Browser bundle includes the whole library
TypeScript-only exports are unavailable at runtime

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