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ddclient vs ddns-updater: catalog facts
ddclient	ddns-updater
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source under the MIT license.
macOS, Linux, Command line	Windows, macOS, Linux, Self-hosted
Supports numerous DNS providers through one configuration.	Supports many dynamic DNS providers Offers a web interface for management
Requires a supported provider and its update credentials.	Requires credentials for the DNS provider whose records it updates.
Downloadable app	Downloadable app, Self-hosted
Open source	Open source
License: GPL-2.0	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 8, 2026

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