Project Summary
HtmlUnit is a "browser for Java programs". It models HTML documents and provides an API that allows you to invoke pages, fill out forms, click links, etc... just like you do in your "normal" browser.
It has fairly good JavaScript support (which is constantly improving) and is able to work even with quite complex AJAX libraries, simulating either Firefox or Internet Explorer depending on the configuration you want to use.
It is typically used for testing purposes or to retrieve information from web sites.
In a Nutshell, HtmlUnit...
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has a well established, mature codebase
maintained by a average size development team
with stable Y-O-Y commits -
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took an estimated 170 years of effort (COCOMO model)
starting with its first commit in September, 2002
ending with its most recent commit 1 day ago
Quick Reference
Apache License 2.0
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Sub-License
Private Use
Use Patent Claims
Forbidden
Hold Liable
Use Trademarks
Required
Include Copyright
State Changes
Include License
Include Notice
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
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30 Day SummaryOct 25 2025 — Nov 24 2025
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12 Month SummaryNov 24 2024 — Nov 24 2025
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