7 Best Cloud Browsers for AI Agents in 2026: Browser Infrastructure Compared

Quick Answer

Browserbase is the strongest general starting point for teams that want a mature managed-browser platform with Playwright, Puppeteer, persistent contexts, detailed session observability, custom proxies, and a first-party agent ecosystem around Stagehand. Browserless is the better fit for teams that already have browser-automation code, want broad browser and protocol support, or need an open-source self-hosting path. Steel is the most accessible option for combining open-source browser infrastructure with a bring-your-own-proxy setup because its documentation makes BYOP available across cloud and open-source deployments without a Steel proxy surcharge.

The other platforms have clearer specialist positions. Kernel is compelling for isolated browser compute, per-second billing, browser pools, and managed authentication. Hyperbrowser combines sessions with several hosted agent runtimes. Anchor Browser focuses on authenticated and security-sensitive computer use. Browser Use Cloud is the best fit when a team wants managed browser infrastructure and a hosted browser agent from the same vendor. These are product-fit recommendations based on documented capabilities and public pricing, not measured speed or reliability rankings.

Key Takeaways

• Browser infrastructure and an AI browser agent are different layers. A cloud browser runs Chrome and exposes CDP, Playwright, Puppeteer, or an API. The agent decides what to do inside it.
• Browserbase is the strongest all-around managed platform on documented breadth. It combines standard automation libraries, reusable browser contexts, custom proxies, session replays, logs, and a first-party MCP and Stagehand ecosystem.
• Browserless and Steel have the clearest self-hosting stories. Browserless offers an open-source Docker deployment and enterprise self-hosting; Steel's browser server is Apache-2.0 open source.
• BYOP availability varies more than proxy syntax. Steel documents BYOP on all plans, while Browserbase, Browserless, Kernel, Anchor, and Browser Use place it behind paid tiers. Hyperbrowser documents custom proxy fields but does not clearly identify the minimum custom-upstream tier.
• Browser-hour prices are not directly comparable. Billing may include subscriptions, credits, 30-second units, one-minute minimums, per-browser creation charges, egress fees, proxy bandwidth, CAPTCHA fees, or agent-model costs.
• The production metric is cost per successful workflow. Startup latency matters, but so do reconnect success, usable DOM time, retries, browser minutes, proxy traffic, and whether the extracted result passes application validation.

AI agents need to wait for JavaScript, click through pages, preserve a login, download a file, or keep one network identity throughout a task. Running hundreds of isolated, observable, recoverable browsers is an infrastructure problem.

Cloud-browser providers provision remote browsers, expose connection endpoints or agent APIs, enforce session limits, and add profiles, live views, replays, proxies, CAPTCHA handling, and concurrency controls. They make different tradeoffs around openness, isolation, state, networking, pricing, and enterprise deployment.

This guide compares seven platforms that sell browser infrastructure—not general scraping APIs, crawlers, or extraction tools. For the broader category, see our comparison of the best web scraping tools for AI agents.

Methodology: Provider capabilities, plan limits, proxy support, and public pricing were checked against first-party documentation on August 12, 2026. Recommendations are based on documented product fit rather than a controlled performance test. Proxidize is not ranked as cloud-browser infrastructure; it is discussed separately as the network layer for teams that connect an external residential or mobile proxy to a supported browser platform.

Responsible-use note: Use browser automation only where you are authorized to do so. Follow applicable law, third-party terms, privacy obligations, and reasonable request rates. A browser or proxy does not grant permission to access a target.

Quick Comparison: Best Cloud Browsers for AI Agents

The table below compares product scope. A checkmark means we verified first-party documentation for the capability; it does not mean the feature is included in the cheapest plan or will perform equally well for every workload.

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Proxy and Pricing Comparison

Prices describe the browser-infrastructure meter or lowest relevant plan, not the total cost of an autonomous agent. Model tokens, agent steps, managed proxy traffic, custom-proxy traffic, storage, and support may be billed separately. Browserbase, Browserless, Kernel, Hyperbrowser, Anchor, and Browser Use each use different billing rules; Steel publishes its current usage rates in its pricing and limits documentation.

Where Proxidize Fits

A cloud browser supplies the execution layer. Proxidize supplies the network layer. When a browser platform accepts an external proxy, the two components fit together like this:

You do not need a separate proxy when the provider's built-in network meets the workload's coverage, control, procurement, and price requirements. Proxidize becomes relevant when a team wants to standardize network access across browser vendors, use the same access-point policy across browser and non-browser collectors, choose its own geography and IP type, or see proxy usage in a separate dashboard and API.

Proxidize Residential Proxies are the natural default for global AI-agent workflows. They provide real residential IPs across 195+ countries with country, city, and ISP targeting, rotating or sticky sessions, HTTP(S) and SOCKS5 support, unlimited concurrent connections, and public pricing from $1/GB. Proxidize Mobile Proxies are more appropriate when a legitimate workflow specifically needs a if you want a specify mobile-carrier identity or a dedicated SIM-based exit.

Keep one point clear: browser persistence and proxy persistence are separate. A reconnect can preserve cookies while a rotating access point changes the exit IP, and a sticky proxy can preserve the IP while a new browser loses cookies. Stateful workflows normally need both layers aligned—one browser profile and one sticky network identity for the coherent task, with rotation between independent tasks.

What Counts as Cloud-Browser Infrastructure?

A cloud browser is a remotely hosted browser process that application code or an agent can control. The provider normally manages browser images, process isolation, scaling, timeouts, patching, and connection routing. The client receives a CDP or WebSocket endpoint, an SDK object, a REST API, an MCP tool, or a higher-level agent interface.

A scraping API takes a URL and returns HTML, Markdown, JSON, a screenshot, or another result. It may use a browser internally, but the customer does not necessarily control the session.

A browser-agent framework provides the reasoning loop that observes a page, chooses an action, and decides when the task is complete. Stagehand, Browser Use's open-source library, and model-specific computer-use frameworks can run on local or cloud browsers.

A proxy provider controls the network route and exit identity. It does not provision Chrome, interpret a DOM, or decide which link to click.

A crawler manages URL discovery, queues, depth, retries, deduplication, and storage across many pages. A cloud browser may be one execution backend inside that crawler.

Some vendors span several categories. Browserbase operates browsers and develops Stagehand. Hyperbrowser offers sessions, scraping APIs, and hosted agent runtimes. Anchor includes browser infrastructure and higher-level task APIs. Browser Use now has both an open-source agent framework and a commercial Browser Infrastructure product. This comparison evaluates the managed-browser layer, even when the vendor sells more.

How We Evaluate Cloud-Browser Infrastructure

This comparison evaluates documented product capabilities rather than assigning performance scores that the available evidence cannot support. The right platform depends on the browser libraries, state model, network controls, deployment requirements, and billing structure needed by the actual workflow.

Startup claims deserve particular care. A provider can report browser creation time without including API latency, queueing, CDP connection, navigation, or time to a usable JavaScript DOM. Those numbers are not directly comparable unless every provider runs the same workload from the same region under the same conditions. We therefore treat vendor-published performance figures as provider claims, not as the basis for speed or reliability rankings.

The same principle applies to stealth and CAPTCHA features. Documentation can confirm whether a provider offers managed proxies, browser modifications, or CAPTCHA services, but it cannot establish a universal success rate. Results vary with the authorized target, browser image, network route, session age, request pattern, and challenge type.

For a final purchase decision, run a controlled pilot using the real workflow. Verify cold startup, JavaScript rendering, state persistence, reconnect behavior, proxy routing, completion rate, tail latency, error categories, browser time, network traffic, and cost per valid result. If an LLM controls the browser, evaluate model-driven behavior separately so model planning failures are not mistaken for infrastructure failures.

Detailed Reviews of the Best Browser Infrastructure for AI Agents

The reviews below focus on architectural fit and meaningful tradeoffs. Feature availability and pricing can change by plan, so confirm the exact entitlement before building around custom proxies, long sessions, recordings, or high concurrency.

1. Browserbase: Best All-Around Managed Browser Platform

Browserbase sets a broad category baseline. It supports Playwright, Puppeteer, Selenium, and raw CDP, while Browser Contexts can preserve cookies, local storage, IndexedDB, and other state across sessions. Live View, session recordings, console output, network events, and debugger tooling give developers a strong production trail when an agent takes an unexpected action.

Its biggest differentiator is the surrounding agent ecosystem. Browserbase maintains Stagehand, which combines natural-language act, extract, and observe operations with deterministic browser code. Its first-party MCP server is available through hosted Streamable HTTP or a local package. Teams can therefore use Browserbase as a low-level browser service, a Stagehand execution layer, or an MCP-accessible browser without changing providers.

Custom HTTP and HTTPS proxies are available on Developer and higher plans. Browserbase's proxy documentation supports external upstream credentials and domain-based routing rules, which is useful when only selected destinations should use a Proxidize route. Built-in proxy traffic is separately metered.

The tradeoffs are a cloud-first deployment model and plan-gated networking. Browserbase also bundles browser hours into paid plans, so effective cost depends on whether a team uses that allowance.

Pricing: Free includes three concurrent browsers and one browser hour. Developer costs $20/month for 25 concurrent browsers and 100 included hours, then $0.12/hour. Startup costs $99/month for 100 concurrent browsers and 500 hours, then $0.10/hour. Current Browserbase plans and proxy meters are published together.

Best for: Teams that want a managed, observable browser platform with both standard automation libraries and a strong first-party agent stack.

2. Browserless: Best for Existing Automation and Self-Hosting

Browserless is the most natural option for developers who already have Playwright, Puppeteer, Selenium, REST, or GraphQL automation and want to move browser processes out of their own infrastructure. A connection-URL change can put an existing CDP script on Browserless, while native Playwright endpoints add Firefox and WebKit coverage for workflows that need more than Chromium.

Its state features are unusually explicit. Browserless documents short live reconnects, longer persisted sessions, and Authenticated Profiles that restore cookies, local storage, and IndexedDB. The hosted Browserless MCP server exposes a stateful browser agent plus scraping, crawling, screenshots, PDFs, downloads, audits, and custom Puppeteer execution. Teams can also run the MCP process locally.

External HTTP or HTTPS proxies are available on paid cloud plans. The custom proxy is passed as an externalProxyServer, and Browserless says third-party traffic does not consume its built-in proxy units. That makes the cloud-browser charge easier to separate from a Proxidize bandwidth bill.

Browserless also has the clearest cross-browser self-hosting route in this comparison. Its open-source Docker images cover core browser automation, while BrowserQL, advanced stealth, recording, live debugging, and enterprise controls can require commercial deployment options.

The tradeoff is unit billing. Each browser connection uses a unit for every 30 seconds or part thereof, and a reconnect starts another unit. Built-in proxy MB and CAPTCHA solves consume additional units. A short task can be economical, but connection count and bandwidth must be included in cost estimates.

Pricing: Free includes 1,000 units and two concurrent browsers. Prototyping is $25/month billed annually for 20,000 units and ten concurrent browsers. Starter is $140 for 180,000 units and 40 concurrent browsers; Scale is $350 for 500,000 and 100 concurrent browsers.

Best for: Teams preserving an existing browser-automation architecture or evaluating both managed cloud and self-hosted deployment.

3. Steel: Best Open-Source-First Option for BYOP

Steel describes itself directly as browser infrastructure for AI agents. It offers a cloud service and an Apache-2.0 open-source browser server, with Playwright, Puppeteer, Selenium, SDK, REST, profile, live-view, replay, scraping, screenshot, and PDF interfaces.

The strongest Proxidize angle is BYOP availability. Steel's proxy documentation says custom proxies work on all cloud plans and the open-source server, accept HTTP, HTTPS, and SOCKS5, and do not incur a Steel proxy charge. That is materially simpler than platforms that require a several-hundred-dollar subscription before an external upstream can be tested.

Steel also provides numerous agent integration recipes, including Browser Use, Claude, OpenAI computer use, and coding agents. We found official recipes that expose Steel actions as in-process MCP tools, but did not verify a standalone first-party hosted MCP endpoint comparable to Browserbase, Browserless, Kernel, or Anchor. The distinction matters only if a hosted MCP URL is a purchasing requirement; Steel still integrates with agent frameworks through its API and browser endpoint.

Launch has no subscription fee, ten concurrent browsers, a 15-minute maximum session, and $30 in one-time credits valid for 90 days. Browser time is $0.10/hour and rounded by the minute. Scale costs $250/month plus usage, includes $100 in monthly credits, increases concurrency to 100, and lowers browser time to $0.08/hour.

Best for: Developers who value open source, want a low-friction custom-proxy path, or need the option to move between hosted and self-operated browser infrastructure.

4. Kernel: Best for Isolated Compute, Pools, and Managed Authentication

Kernel treats each browser as an isolated compute environment and builds additional infrastructure around it: profiles, live view, telemetry, replays, filesystem access, process control, browser pools, managed authentication, extensions, and a computer-controls API. Its official hosted MCP server can create browsers, execute Playwright code, work with profiles, and return replay links.

Kernel is particularly interesting for long-running or repeat workflows. Browser pools can hold browsers in standby, profiles preserve state, managed authentication can maintain connections, and sessions support timeouts up to 72 hours. The browser behaves more like an isolated worker than a one-page renderer.

Custom proxy setup uses a reusable resource. The developer creates a custom HTTP or HTTPS proxy object, then attaches its ID to a browser. This adds one API step but avoids copying proxy credentials into every session request. Kernel's current pricing table restricts configurable and BYO proxies to Start-Up and Enterprise plans, so using Proxidize requires at least the $200 Start-Up subscription.

Kernel advertises browser creation in tens of milliseconds. That is a provider claim rather than independently measured evidence. Buyers should evaluate end-to-end time to a usable CDP connection and rendered page instead of relying on the session-creation response alone.

Pricing: Headless browsers cost $0.0000166667 per second, approximately $0.06/hour. Developer has no subscription fee, $5 in monthly credits, and five concurrent browsers. Hobbyist is $30 plus usage with ten concurrent browsers. Start-Up is $200 plus usage with $50 in credits and 150 concurrent browsers.

Best for: Teams that need isolated browser workers, reusable pools, managed authentication, process-level control, or per-second compute billing.

5. Hyperbrowser: Best for Combining Sessions With Multiple Agent Runtimes

Hyperbrowser combines managed sessions with scrape, crawl, extract, and hosted agent interfaces for HyperAgent, Browser Use, OpenAI, Claude, Gemini, and Grok. This lets teams compare agent runtimes without rebuilding the browser lifecycle.

Standard Playwright, Puppeteer, and Selenium integrations remain available, so customers are not limited to a hosted agent. Profiles preserve cookies, local storage, session storage, and optionally network cache. Sessions can stay alive across client disconnections, and live views plus rrweb or video recordings support debugging. The official hyperbrowser-mcp package exposes scraping, extraction, and crawling tools to MCP clients.

Hyperbrowser documents built-in proxies with country, US state, and city targeting. It also documents custom HTTP, HTTPS, SOCKS5, and SOCKS5h upstreams through proxyServer and authentication fields. Its docs say proxy features require a paid plan, but the relevant public pages do not clearly identify the minimum tier specifically for a customer-supplied upstream. Buyers should confirm that entitlement before assuming a $30 Startup account can connect to Proxidize.

Pricing: One credit equals $0.001. Browser sessions consume 100 credits, or $0.10, per hour and are billed by the second; built-in proxy traffic is $10/GB. Free includes 5,000 credits and one concurrent browser. Startup costs $30/month with 30,000 credits and 25 concurrent browsers. Scale costs $100 with 100,000 credits and 100 concurrent browsers.

Best for: Teams that want one managed browser layer beneath several model-specific or third-party agent runtimes.

6. Anchor Browser: Best for Authenticated and Security-Sensitive Agents

Anchor Browser focuses more heavily than most providers on computer-use security and authentication. Its platform includes saved identities, authenticated browsers, live browser control, recordings, session persistence, a Chromium build for agent workflows, and OmniConnect for onboarding and maintaining user authentication. It also offers hosted and open-source MCP integrations.

This suits logged-in business applications where browser state, human takeover, identity lifecycle, and security controls matter more than the cheapest headless minute. Anchor also advertises enterprise bring-your-own-cloud and on-premises deployments.

Custom proxy configuration accepts common HTTP and SOCKS formats and can be embedded in session creation. The purchasing requirement is currently unclear because Anchor's own pages conflict. The main pricing page includes “Custom proxy” on the $500 Team plan, while the official docs comparison table lists “Bring your own proxy” only on the $2,000 Growth plan. This is not a minor wording difference; teams should get the entitlement confirmed in writing before purchase.

Anchor's infrastructure meter also has more components than a simple hourly rate. It lists $0.01 for each browser creation, $0.05 per browser hour rounded to a full minute, $8/GB for Anchor proxy traffic, and $0.20/GB of egress when using BYOP or no proxy. Creation charges can dominate very short sessions, while the hourly rate becomes more important for longer tasks.

Best for: Organizations building authenticated computer-use agents that prioritize identity, security, human involvement, and enterprise deployment controls.

7. Browser Use Cloud: Best Integrated Agent and Low-Cost Browser Infrastructure

Browser Use belongs in this comparison because it is no longer only an open-source Python agent framework. Browser Use Cloud now separates Hosted Agents from Browser Infrastructure. The infrastructure product launches managed Chromium sessions that developers can control through an SDK, REST, Playwright, Puppeteer, or CDP. Profiles preserve cookies and browser state, while live previews and optional recordings support production debugging.

That makes Browser Use the clearest choice for teams that want to start with direct browser control and later hand selected workflows to a hosted agent without changing the browser vendor. It also provides hosted and local MCP options. The open-source framework remains self-hostable, but that should not be confused with self-hosting Browser Use's commercial cloud-browser service.

Custom proxies are available from the $29/month Dev plan. Current documentation accepts a host, port, username, and password; the pricing page lists direct or BYOP egress at $0.20/GB. A managed US residential proxy is enabled by default unless the client selects another country or sets the proxy field to null.

The published browser rate is the lowest simple hourly figure in this comparison at $0.02/hour, with a one-minute minimum and rounding. That does not automatically make Browser Use the lowest-cost workflow: egress, proxy traffic, agent tokens, retries, and successful completion still matter. Browser Use also publishes its own stealth and agent performance results; those are vendor figures rather than independent evidence used in this comparison.

Pricing: Free supports three concurrent sessions. Pay as you go raises concurrency to ten after the first top-up. Dev is $29/month with 25 concurrent sessions; Business is $299 with 200; Scaleup is $999 with 500. Browser time is $0.02/hour, managed residential traffic is $5/GB on standard tiers, and BYOP/direct egress is $0.20/GB.

Best for: Teams that want both low-level managed browsers and a hosted goal-driven browser agent from the same platform.

How to Compare Cloud-Browser Pricing Correctly

The lowest advertised browser-hour price is not necessarily the lowest production cost. Normalize each provider against the same completed workflow and include every meter that changes with the task.

Suppose a browser platform costs only $0.02/hour but imposes a one-minute minimum and charges BYOP egress. A 12-second task may still be billed as a full minute, and the network meter may exceed the browser meter on a media-heavy page. Another provider may charge $0.10/hour but include enough credits that the marginal task costs nothing during the current billing period. Browserless adds a new unit on reconnect, while Anchor adds a browser-creation charge. Those details can reverse a comparison based only on hourly rates.

Report two views:

Marginal usage cost answers what one more workflow costs after the subscription is already paid and while included credits remain.

Fully allocated cost spreads the monthly subscription across successful workflows and includes overages. This is the better procurement view when a plan is purchased mainly to unlock BYOP, concurrency, or profiles.

When evaluating a real workload, use provider-reported browser and proxy costs when the API returns them. Otherwise, apply observed browser seconds and bytes to the public billing formula. Keep Proxidize bandwidth in its own line item so browser execution and network routing remain distinguishable.

How to Choose the Right Cloud Browser

Choose from the workload outward rather than starting with the provider's longest feature list.

For an existing Playwright or Puppeteer codebase, Browserless, Browserbase, Steel, Kernel, Hyperbrowser, and Browser Use can all expose a remote CDP connection. Browserless is especially natural when maintaining current automation and self-hosting flexibility matter. Browserbase is stronger when the team also wants Stagehand and detailed managed observability.

For an open-source deployment path, compare Browserless and Steel first. Browserless offers broader browser images and mature API surfaces; Steel has an especially clear BYOP story and Apache-2.0 browser server. Browser Use's agent library is open source, but its commercial browser infrastructure is a different managed product.

For authenticated or long-lived agents, prioritize the state model instead of the initial connection speed. Browserbase contexts, Browserless profiles and persisted sessions, Kernel profiles and managed auth, Hyperbrowser profiles, Anchor saved identities, and Browser Use profiles solve related but not identical problems. Test the exact sequence: authenticate, persist, disconnect, reconnect, resume, rotate credentials, and revoke state.

For bring-your-own-proxy workflows, Steel has the lowest documented access barrier. Browserless and Browser Use offer relatively modest paid entry points. Browserbase requires Developer. Kernel's $200 Start-Up gate is material. Anchor's conflicting $500/$2,000 documentation needs confirmation, and Hyperbrowser should confirm its exact custom-upstream entitlement.

For large concurrency, compare both the headline limit and session-creation rate. A platform can allow 500 active browsers but throttle how quickly a burst provisions them. Also test tail latency under the concurrency level you actually need; one idle session cannot predict performance at 100 simultaneous sessions.

For MCP-first agents, Browserbase, Browserless, Kernel, Anchor, Hyperbrowser, and Browser Use all have first-party MCP paths of different shapes. Inspect the tools, not only the protocol badge. Some servers expose direct browser actions, some expose higher-level scrape or task calls, and some wrap a model-driven agent. Steel has agent recipes that use MCP tools in-process, but we did not verify a comparable standalone hosted endpoint.

Production Checks Before You Commit

A short product trial cannot prove that a browser platform is safe or reliable for a production agent. Before committing, test the conditions that matter to the real application.

Treat CDP URLs, live-view URLs, profile IDs, API keys, proxy credentials, cookies, and recordings as secrets. Use a secret manager, redact logs, set short session timeouts, revoke stale profiles, and verify what the provider records by default. A replay that makes debugging easy can also contain account data or form inputs.

Constrain the agent separately from the browser. Use domain allowlists, URL validation, egress rules, maximum steps, timeouts, concurrency limits, spending caps, and human approval before externally visible actions such as submissions, purchases, messages, or deletions. Web pages are untrusted input and can contain instructions intended to redirect an agent or expose secrets.

Validate outputs independently. A browser reaching a page does not prove that it reached the correct entity, locale, account, product variant, or current state. Store the final URL, retrieval time, browser session ID, proxy route, relevant evidence, extracted fields, and validation errors. In production, a completed browser action is not necessarily a valid business record.

Finally, run a target-specific pilot. Performance depends on runner and provider regions, browser image, target geography, page weight, proxy route, session age, and concurrency. A training-site winner may not win on your authorized workload.

Which Cloud Browser Should You Choose?

Put Browserbase and Browserless on the general-purpose shortlist; choose Browserbase for its managed platform, observability, Stagehand, and hosted MCP, or Browserless for existing automation, browser choice, and self-hosting. Start with Steel for open-source-first BYOP, Kernel for isolated workers and managed authentication, Hyperbrowser for multiple hosted agent runtimes, Anchor for authentication-centric computer use, and Browser Use Cloud when one vendor should supply both the managed browser and autonomous agent.

The final choice should follow workload evidence. Run the same session, proxy, extraction, and error-handling path on purchasable plans, then compare successful workflows, tail latency, and fully allocated cost—not one unusually fast session.

If the selected platform supports an external proxy, connect it to Proxidize Residential Proxies to test country or city routing, sticky task sessions, and rotation between independent jobs while keeping browser execution and network infrastructure independently observable.