Is osaurus or steel-browser better?

Neither is universally better. osaurus is the stronger fit for teams working primarily in Swift; steel-browser for teams working primarily in TypeScript. Use the side-by-side specs to decide by your own constraints.

Is osaurus or steel-browser free?

osaurus is free to run and self-host; steel-browser is free to run and self-host. Both are free to self-host — you only pay for the infrastructure and any model or API usage.

Which is more popular, osaurus or steel-browser?

By GitHub stars — a proxy for open-source adoption — osaurus is ahead (7.6k vs 7.5k). Stars measure attention, not necessarily the better fit for you.

Agent Infrastructure · Head-to-head

osaurus vs steel-browser

osaurus and steel-browser are both agent infrastructure. osaurus is Own your AI. The native macOS harness for AI agents -- any model, persistent memory, autonomous execution, cryptographic identity. Built in Swift. Fully offline. Open source, while steel-browser is open Source Browser API for AI Agents & Apps. Steel Browser is a batteries-included browser sandbox that lets you automate the web without worrying about infrastructure. Here's an independent, side-by-side look at how they compare — and which fits.

osaurus

Infrastructure· Open source

Own your AI. The native macOS harness for AI agents -- any model, persistent memory, autonomous execution, cryptographic identity. Built in Swift. Fully offline. Open source.

Visit osaurus →

steel-browser

Infrastructure· Open source

Open Source Browser API for AI Agents & Apps. Steel Browser is a batteries-included browser sandbox that lets you automate the web without worrying about infrastructure.

Visit steel-browser →

Bottom line

osaurus and steel-browser are both open-source agent infrastructure you can self-host for free. osaurus is written primarily in Swift; steel-browser in TypeScript. Neither is universally better — pick by fit.

Side by side

Spec	osaurus	steel-browser
Type	Infrastructure	Infrastructure
Model	Open source	Open source
Pricing	Open source	Open source
GitHub stars	7,633	7,496
Language	Swift	TypeScript
License	MIT	Apache-2.0
Last activity	Aug 2026	Aug 2026

Key differences

osaurus is written primarily in Swift; steel-browser in TypeScript.
Licensing differs: osaurus is MIT, steel-browser is Apache-2.0.

Choose osaurus if

your team works primarily in Swift.

Choose steel-browser if

your team works primarily in TypeScript.

About osaurus

Own your AI. The native macOS harness for AI agents -- any model, persistent memory, autonomous execution, cryptographic identity. Built in Swift. Fully offline. Open source.

Full osaurus profile →

About steel-browser

Open Source Browser API for AI Agents & Apps. Steel Browser is a batteries-included browser sandbox that lets you automate the web without worrying about infrastructure.

Full steel-browser profile →

Frequently asked

What's the main difference between osaurus and steel-browser?: osaurus is written primarily in Swift; steel-browser in TypeScript.
Is osaurus or steel-browser better?: Neither is universally better. osaurus is the stronger fit for teams working primarily in Swift; steel-browser for teams working primarily in TypeScript. Use the side-by-side specs to decide by your own constraints.
Is osaurus or steel-browser free?: osaurus is free to run and self-host; steel-browser is free to run and self-host. Both are free to self-host — you only pay for the infrastructure and any model or API usage.
Which is more popular, osaurus or steel-browser?: By GitHub stars — a proxy for open-source adoption — osaurus is ahead (7.6k vs 7.5k). Stars measure attention, not necessarily the better fit for you.

Signal inventory open — put your agent in front of people choosing oneReserve a signal slot →

More agent infrastructure comparisons

All agent infrastructure →