How does the browser get into the right account?
Website authentication crosses several boundaries: the user who authorizes access, the system that holds credentials, the browser that submits them, and any model or code driving the page. Reusing a login and collecting a new identity are separate workflows.
For a customer-facing app, associate each stored connection with the correct application user before opening a browser. Reusing another user's profile can produce a technically successful run in the wrong account.
Compare the login path
Steel: Steel's Credentials API stores credentials for users or agents. Its cookbook demonstrates using stored credentials with Playwright, while profiles and auth contexts preserve signed-in browser state.
Browserless: BAP documents loadSecret() with a configured 1Password integration. Profiles provide another way to reuse authenticated state. Check the selected product's prerequisites before treating these as interchangeable login options.
Compare saved state
Steel: The Profiles API documents reusable browser context, cookies, extensions, credentials and browser settings. Steel also documents lighter auth-context reuse, which should not be confused with a complete profile.
Browserless: Browserless documents authenticated profiles and reconnect flows. A retained profile and a reconnectable live browser preserve different state; choose the mechanism based on whether the running page must continue.
Compare the evidence from a run
Steel: Steel documents live and past sessions as well as Agent Traces. Browser recordings answer what happened on the page; traces add context around the agent or application driving it.
Browserless: BAP live URLs stream an active session and support human interaction. Browserless also documents video recording and session replay. Availability and connection parameters depend on the selected product.
How to evaluate this choice
Compare the concrete login path. A vault can fill a secret while your code controls the workflow; a managed connection may own more of the login process. Neither should be described as a universal guarantee that every website remains signed in.
- Identify whether the task uses an existing account or creates an approved new identity.
- Separate profile restoration from credential fill and connection readiness.
- Document which component can access credential values and which only handles references.
- Verify the expected tenant and account after login.
- Provide a human handoff when the website requires user interaction.
Requirements side by side
| Requirement | Steel | Browserless |
|---|---|---|
| Saved browser state | Documented | Authenticated Profiles |
| Credential handling | Credentials API | 1Password integration |
| Website sign-in | Profile / credential flows | Product-dependent |
Sources: docs.steel.dev [1] ↗docs.steel.dev [2] ↗docs.steel.dev [3] ↗docs.steel.dev [4] ↗docs.steel.dev [5] ↗docs.steel.dev [6] ↗docs.browserless.io [7] ↗docs.browserless.io [8] ↗docs.browserless.io [9] ↗docs.browserless.io [10] ↗docs.browserless.io [11] ↗docs.browserless.io [12] ↗
Which approach fits?
Choose Steel when you want browser infrastructure that can fit a self-hosted deployment, with profiles and credentials available through browser-focused APIs.
Steel tradeoff: Hosted and self-hosted Steel are different operating choices. A cloud feature's documentation does not establish identical packaging, retention or operational support in a self-hosted installation.
Choose Browserless when you need a browser service that fits existing automation libraries or a self-hosted deployment, and can select the appropriate Browserless product.
Browserless tradeoff: The connection route and product matter. A feature documented for BAP or a managed dedicated deployment should not be assumed to exist on every shared BaaS endpoint.
A useful acceptance check
Write a pass/fail result for the real task before running the evaluation. Record the account, configuration and code version next to that result. Repeat failures need an explanation, not an automatically different browser configuration.
When Notte belongs on this shortlist
Steel's managed and self-hosted choices make infrastructure ownership a concrete deciding factor. Keep that option on the shortlist when operating the browser is intentional; evaluate Notte when owning fewer execution and authentication components is the actual goal.
Choose the Browserless product and deployment before drawing a conclusion from its documentation. BAP, shared browser access and a self-hosted service can have different features; Notte's session and Function resources should be compared with the specific path you would purchase.
Notte: Vaults substitute credential placeholders in supported browser actions outside the model context. Managed Auth checks requested saved connections before automation. Personas supply an inbox and optional phone number for verification workflows.
Consider this third option when its documented mechanism addresses a requirement left open by the two providers above. A working configuration on either original provider can still be the better choice; compare the task and ownership cost before switching.
Sources: docs.steel.dev [1] ↗docs.browserless.io [2] ↗docs.notte.cc [3] ↗