Project Summary
This is another library for creating and manipulating graphs. There is simply no other graph library out there which can be handle graphs of the size the author is confronted with efficiently. Whenever possible igraph tries to be also user friendly and portable.
igraph started as an additional package to the GNU R statistical environment, and still some functions which are hard to implement in C are available only in R (like interactive graphics). Most functions are however now written in C and they can be compiled without R as a separate library.
In a Nutshell, igraph library...
- ...
- ...
-
...
has a well established, mature codebase
maintained by a very large development team
with decreasing Y-O-Y commits -
...
took an estimated 189 years of effort (COCOMO model)
starting with its first commit in January, 2005
ending with its most recent commit about 21 hours ago
GNU General Public License v2.0 or later
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
Did You Know...
-
...
55% of companies leverage OSS for production infrastructure
-
...
data presented on the Open Hub is available through our API
-
...
in 2016, 47% of companies did not have formal process in place to track OS code
-
...
learn about Open Hub updates and features on the Open Hub blog
30 Day SummaryJul 11 2025 — Aug 10 2025
|
12 Month SummaryAug 10 2024 — Aug 10 2025
|
Static Analysis ( Generated by Coverity Scan for igraph/igraph )
Repository URL: https://github.com/igraph/igraph
Version: 16d599e36a62c221ae39b496b349cf30ed4e63bf
- 2025-08-11
- Last Analyzed
- 261,068
- Lines of Code Analyze
- 1.31
- Defect Density
Defects by status for current build
- 476
- Total defects
- 169
- Outstanding
- 209
- Fixed
CWE Top 25 defects
| ID | CWE-Name | Number of Defects |
|---|---|---|
| 190 | Integer Overflow or Wraparound | 11 |