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Certbot vs lego: catalog facts
Certbot	lego
Free Free and open source under the Apache 2.0 licence; certificates from Let's Encrypt are…	Free Free and open source under the MIT licence.
macOS, Linux, Command line	Windows, Command line
Gets free HTTPS certificates from Let's Encrypt Can configure Apache and Nginx automatically	Single Go binary that is simple to deploy Works with Let's Encrypt and other ACME authorities
Requires comfort with the command line Needs shell access to the web server, which some hosts do not give	Command line only Requires understanding of ACME challenges and DNS or HTTP setup
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: MIT
No account needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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