Cloudflare Browser Run alternatives
The 5 alternatives below are grouped by kind of sandbox, and each says what it does differently from Cloudflare Browser Run. Start from whatever made you look: missing GPUs, session limits, self-hosting, pricing or isolation.
Why teams look beyond Cloudflare Browser Run
Convenient edge Chrome for Workers users and quick page tasks, not a long-lived or isolation-documented agent browser.
- Isolation between browsers is not documented
- Short sessions: 60 seconds idle by default and 20 minutes at most with keep_alive
- No proxies, stealth, captcha solving or persisted profiles
- Concurrency and request rates are tight on the Free plan
Cloudflare Browser Run alternatives, by kind
Hosted sandbox platforms
SDK-driven sandboxes you create, run code in and destroy through an API.
Cloudflare Sandbox SDK
A TypeScript SDK for Cloudflare Workers that runs untrusted code in Linux sandboxes backed by Cloudflare Containers and Durable Objects.
- MicroVM (Containers)
- Open source
- Snapshots
How it differs: Teams building on Cloudflare Workers that want per-user sandboxes with egress and credentials controlled in code. A strong, programmable option for Workers developers; less suited to Python-first agent stacks.
Browser and desktop sandboxes
Hosted browsers and full desktops that computer-use agents click, type and browse in.
Browserbase
Hosted headless Chromium sessions for web agents, driven over CDP with Playwright, Puppeteer, Selenium or the Stagehand SDK, with Contexts for persisted logins and four regions.
- Isolated Chromium session
How it differs: Web agents that need managed Chromium at scale with persisted logins and stealth. A mature managed-Chromium service for web agents, with strong SDK and framework coverage but an undocumented isolation boundary.
Browserless
Managed headless Chrome, Firefox and WebKit over WebSocket for Puppeteer, Playwright and Selenium, with BrowserQL stealth, REST endpoints and a Docker image you can self-host.
- Not documented
- Open source
- Self-hostable
- GPU
How it differs: Existing Puppeteer, Playwright or Selenium automations that want a managed or self-hosted browser pool. A proven managed browser pool for automation code, less tailored to agents than its newer peers and silent on isolation.
Lightpanda
A headless browser written from scratch in Zig (AGPL-3.0) with no graphical rendering, offered as a CDP endpoint on Lightpanda Cloud with a free 10-hour tier.
- Not documented
- Open source
- Self-hostable
How it differs: High-volume page fetching and crawling where memory and speed matter more than pixel-accurate rendering. A fast, frugal engine for machine browsing rather than a visual sandbox; the cloud tier is young and lightly documented.
Steel
Open-source browser API for agents (Apache-2.0, self-hostable with Docker) with a managed Steel Cloud adding stealth, captcha solving, profiles and a hosted MCP server.
- Isolated Chromium session
- Open source
- Self-hostable
How it differs: Teams that want an open-source browser API they can run themselves or scale on a managed cloud. The open-source choice among hosted browser APIs: self-host for free, move to Steel Cloud for stealth, captchas and concurrency.
Cloudflare Browser Run vs alternatives
| Sandbox | Isolation | Open source | Self-host / BYOC | Cold start (vendor) | Max session | Snapshots / pause | GPU | SDKs |
|---|---|---|---|---|---|---|---|---|
| Cloudflare Browser Run | Not documented | No | No / No | Warm pool (claim) | 60 s idle, 20 min keep_alive | No / No | No | JavaScript/TypeScript, REST API, MCP server |
| Browserbase | Isolated Chromium session | No | No / No | <2 s (claim) | 6 h (15 min Free) | No / No | No | Python, JavaScript/TypeScript, REST API, MCP server |
| Browserless | Not documented | Yes | Yes / No | Not documented | 2 min to 60 min by plan | No / No | Yes | JavaScript/TypeScript, Python, CLI, REST API, MCP server |
| Cloudflare Sandbox SDK | MicroVM (Containers) | Yes | No / No | 1–3 s | No fixed cap | Yes / Not documented | Not documented | TypeScript (Workers) |
| Lightpanda | Not documented | Yes | Yes / No | Not documented | 15 min per connection | No / No | No | CLI, REST API, MCP server |
| Steel | Isolated Chromium session | Yes | Yes / No | Not documented | 15 min / 1 h / 24 h | No / No | No | Python, JavaScript/TypeScript, Go, Rust, CLI, REST API, MCP server |
Frequently asked questions
What are the main alternatives to Cloudflare Browser Run?
Is there an open-source alternative to Cloudflare Browser Run?
Cite this page
Agent Sandboxes. (2026). Cloudflare Browser Run alternatives. agentsandboxes.org. Last reviewed November 9, 2026. https://agentsandboxes.org/alternatives/cloudflare-browser-rendering/
Found an error or a missing sandbox? Submit a correction — every entry links to the sources it relies on.