Altova DiffDog
6.3#6 in database schema comparison tools$189 one-timeWindows
VisitAltova DiffDog vs GitHub CodeQL
GitHub CodeQL
7.5#1 in git gui clientsFrom $30 a monthFree planWebExtensionLinuxmacOS
VisitWhat both publish
| Fact | Altova DiffDog | GitHub CodeQL |
|---|---|---|
| Purpose | DiffDog compares and merges text and source-code files, XML and JSON files, Word documents, directories, and database schemas and content. | CodeQL is a language and toolchain for code analysis that treats code as data. |
Altova DiffDog plans
- DiffDog 2026 Professional Edition$189, paid once
- DiffDog 2026 Enterprise Edition$269, paid once
GitHub CodeQL plans
- Free for research and open sourceFree
- CodeQL for open source and researchFree
- GitHub Code Security$30 a month
- GitHub Free with CodeQL code scanning—
Pick Altova DiffDog if…
It is aimed at developers and IT professionals comparing or merging files, folders, and database content. Enterprise Edition may suit those who need three-way comparisons or database change scripts.
Pick GitHub CodeQL if…
CodeQL is for developers and security teams who want query-based code analysis in an IDE, CLI, or CI workflow. Its availability depends on supported languages, operating systems, and repository eligibility.