Project Summary
K.E.T.T.L.E (Kettle ETTL Environment) is a meta-data driven ETTL tool. (ETTL: Extraction, Transformation, Transportation & Loading)
This means that no code has to be written to perform complex data transformations.
Environment means that it is possible to create plugins to do custom transformations or access proprietary data sources.
Kettle is released under the Apache License v2.0 since version 4.3.0.
Kettle moved to GitHub at the beginning of 2014: http://github.com/pentaho/pentaho-kettle
This move could lead to strange results in the Ohloh metrics.
In a Nutshell, Kettle...
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has a well established, mature codebase
maintained by a very large development team
with stable Y-O-Y commits -
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took an estimated 346 years of effort (COCOMO model)
starting with its first commit in November, 2005
ending with its most recent commit 3 days ago
Quick Reference
Apache License 2.0
Permitted
Commercial Use
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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.
MIT
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Use Patent Claims
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
Include Install Instructions
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 SummarySep 25 2026 — Oct 25 2026
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12 Month SummaryOct 25 2025 — Oct 25 2026
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