Project Summary
The TEI is an international and interdisciplinary community-based open standard used by research project, libraries, museums, publishers, and academics to represent all kinds of literary and linguistic texts, using an encoding scheme that is maximally expressive and minimally obsolescent.
In a Nutshell, Text Encoding Initiative...
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has a well established, mature codebase
maintained by a large development team
with decreasing Y-O-Y commits -
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took an estimated 157 years of effort (COCOMO model)
starting with its first commit in April, 2004
ending with its most recent commit about 2 months ago
BSD 2-clause "FreeBSD" License
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.
Creative Commons Attribution 3.0
Permitted
Forbidden
Required
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...
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nearly 1 in 3 companies have no process for identifying, tracking, or remediating known open source vulnerabilities
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by exploring contributors within projects, you can view details on every commit they have made to that project
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use of OSS increased in 65% of companies in 2016
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data presented on the Open Hub is available through our API
30 Day SummaryOct 12 2026 — Nov 11 2026
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12 Month SummaryNov 11 2025 — Nov 11 2026
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