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Steel vs agent-browser: catalog facts
Steel	agent-browser
Freemium Hosted service can be started for free; the open-source browser API is free to run.	Free Free and open source under the Apache 2.0 licence.
Web, Self-hosted	Windows, macOS, Linux, Command line
Open-source browser API that can be self-hosted Controls many cloud browser sessions at once	Compact text output keeps agent context usage low Element references from accessibility snapshots for reliable selection
Developer tool that requires programming Scaling in the cloud relies on the hosted service	Designed for AI agents rather than hands-on human use Downloads its own Chrome on first use
Self-hosted, Hosted service	Downloadable app
Open source	Open source
License not stated	License: Apache-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 1, 2026

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