igraph

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Research · Vendor site 2026-10-04

igraph is an open-source network analysis library collection with emphasis on efficiency, portability, and ease of use across C, R, Python, and Mathematica interfaces. It provides graph algorithms, generators, and community detection tools maintained by an academic and open-source community.

Updated 2026-10-04View sources

Official website

Category: Research
Free access: Homepage states igraph is open source and free to use across its language bindings.
API access: Language packages expose programmatic APIs for graph manipulation, layout, and analysis in R, Python, and other supported runtimes.

Is igraph right for you?

A good fit for

Scientists, data engineers, and developers modeling networks who need fast, portable graph algorithms in multiple languages.

Before you choose

There is no commercial SaaS offering or monthly USD pricing on the official igraph project site.

Network analysis toolkit

igraph bundles fast graph algorithms and bindings so researchers can analyze large networks from their preferred scientific programming language.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

Capability	Value	Evidence	Checked
Multi-language	Site navigation lists igraph packages for R, Python, C, and IGraph/M interfaces.	Facts sourced	2026-10-04
Performance focus	Homepage tagline stresses efficiency, portability, and ease of use for network analysis.	Facts sourced	2026-10-04
Open source	Marketing explicitly says igraph is open source and free.	Facts sourced	2026-10-04

Understand the total cost

igraph pricing & plans

Free

Homepage states igraph is open source and free to use across its language bindings.

Access: Homepage states igraph is open source and free to use across its language bindings.

Explore pricing & history

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The practical questions

Frequently asked questions

What is igraph used for?

Does igraph have a free plan?

Homepage states igraph is open source and free to use across its language bindings.. This record lists ongoing free access; check the plan limits before starting.

How much does igraph cost?

No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use igraph through an API?

Language packages expose programmatic APIs for graph manipulation, layout, and analysis in R, Python, and other supported runtimes.. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

There is no commercial SaaS offering or monthly USD pricing on the official igraph project site.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Identity and profile

Reviewed vendor source

Read original source ↗

2026-10-04

Facts apply to the named version and check date. Send a sourced correction if something changed.