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Bazel vs Apache Ant: catalog facts
Bazel	Apache Ant
Free Free and open source.	Free Free and open source from the Apache Software Foundation.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Rebuilds only what changed, with local and distributed caching One tool for many languages and platforms	No fixed project layout or coding conventions Large set of built-in and third-party tasks
Build files and rules take time to learn Adds overhead that small single-language projects may not need	Verbose XML build files No built-in dependency management without Ivy
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: Apache-2.0
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.