License Credits and Support

License, credits and support

Summary

GDTT is Data Transform Tool by Gadash (Akila DJ). OpenAI Codex assisted with architecture, implementation, documentation and verification. Original GDTT work and third-party dependencies do not share one blanket license.

Copyright and project license

The app's About panel displays Copyright (c) 2026 Gadash +. The authoritative root LICENSE currently retains the owner's supplied Copyright (c) 2026 Akila DJ + notice. This documentation preserves those notices; it does not silently rewrite the license or label it MIT/Apache.

The project license text is:

GDTT — Data Transform Tool by Gadash (Akila DJ) License

Copyright (c) 2026 Akila DJ +

Permission is hereby granted, free of charge, to any person obtaining a copy of this software to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies, without restriction.

The software is provided "as is", without warranty of any kind, express or implied. In no event shall the authors or copyright holders be liable for any claim or damages arising from its use.

Attribution is not legally required, but citing GDTT / Data Transform Tool by Gadash (Akila DJ) is greatly appreciated if this project is useful to you.

The versioned LICENSE governs if a summary elsewhere differs. Its optional-attribution wording does not cancel obligations imposed by dependencies' own licenses.

Development and third-party credits

OpenAI Codex supported the AI-assisted development process. This is a development credit, not an endorsement, security certification, warranty or commitment by OpenAI to provide GDTT support.

Product	Role
Python	Language and standard library, including datetime/Decimal/SQLite facilities
PySide6 / Qt for Python	Desktop UI
Pydantic	Validated configuration models
platformdirs	Per-user application paths
tzdata	IANA timezone data, including on Windows
charset-normalizer	Text encoding detection
openpyxl	XLSX reading and reopening verification
XlsxWriter	Plain and formatted XLSX output
uv and Hatchling	Dependency management and Python builds
pytest, pytest-qt, pytest-cov	Automated test tooling
Ruff and mypy	Formatting/lint and static type checks
Git and GitHub Actions	Source history and automated checks/release builds
PyInstaller	Portable Windows application packaging
NSIS	Current-user Windows installer
Polars, PyArrow and DuckDB	Optional benchmark/optimization candidates, not the current mandatory production engine

The complete third-party notices link products and license sources. The app's About / Components tab shows installed component versions; uv.lock and the release manifest identify the corresponding build environment. Review actual bundled licenses when redistributing.

Limitations and disclaimers

The current release is unsigned and has not completed separate hands-on clean-Windows acceptance. Automated test success does not guarantee correctness for every input or regulatory suitability. Preserve backups and independently review consequential outputs. See Release status and safety.

Attribution

Suggested citation: GDTT — Data Transform Tool by Gadash (Akila DJ), version 0.10.2, with the project URL and the exact release used.

Sponsor and help GDTT

If GDTT is useful to you, you can support its creator through Ko-fi:

These links are also available inside the app's About → Sponsor / Donate section from version 0.10.2.

• Support Gadash on Ko-fi
• GDTT project support on Ko-fi

You can also help without donating: report a reproducible issue, suggest a feature or propose a documentation improvement. Remove private data and credentials from examples before sharing.

Donations are optional. They do not change the license, grant a warranty or guarantee feature delivery. Do not send account credentials or payment details through issues or documentation.