DataCleaner
7.4#3 in data preparation softwareFree planFree planAPILinuxmacOSSelf-hosted
VisitNo prices published.
DataCleaner suits people who need to profile and clean data from files or databases, including developers who want to embed it or build plugins. It is available for Linux, macOS, and Windows.
You want what its maker publishes above — check its page for the details.