Browserbase Alternative in 2026 — fastCRW (Self-Host, Scraper vs Browser Infra)

Verdict

Browserbase and fastCRW occupy different market positions that happen to overlap at "I need to execute JavaScript to scrape."

Browserbase is browser infrastructure. You call their managed sessions API, they handle proxy rotation, session state, Stagehand (AI browser actions), observability dashboards, and session replay. You're paying for managed execution, not raw compute.

fastCRW is a scraping API. Single binary, renders JS via LightPanda or Chrome, ships anti-bot and proxy rotation in the open core, and returns markdown/JSON/HTML/screenshots. Run it on fastCRW Cloud, or self-host it and own the data end to end.

Who this page is for

Three readers:

• Evaluating self-hosted alternatives to Browserbase — skip to Capability matrix.
• Deciding between a rented browser and a scraping API — read When to choose fastCRW.
• Looking for a browserbase alternative or self-hosted browser automation — the head-to-head section is the short version.

Capability matrix

Capability	Browserbase	fastCRW
Architecture	Managed cloud service	Self-hosted single binary
JS rendering	✅ Puppeteer/Playwright, full browser	✅ LightPanda (fast, lightweight) + Chrome fallback
Markdown extraction	❌	✅ htmd-based
Structured JSON extraction	Via Stagehand + prompt	✅ via /v1/scrape with JSON schema
Screenshot support	✅ base64	✅ base64 data URL via CDP Page.captureScreenshot
Proxy rotation	✅ residential proxy network	✅ managed proxy pool on paid cloud plans; BYO proxy on self-host
Rate limiting	✅ managed	✅ token-bucket (self-host)
SSRF protection	✅	✅ comprehensive (private IPs, IPv6, metadata)
Deployment	Cloud-only (SaaS)	Self-hosted: single binary or Docker
Memory baseline	Managed (no visibility)	Low idle footprint, fast cold start
License	Proprietary	AGPL-3.0
Self-host option	❌	✅
CLI	❌ SDK/API only	✅ crw https://example.com
MCP support	❌ (not mentioned as of May 2026)	✅ built-in crw-mcp

Head-to-head: browserbase vs fastcrw

Decision area	fastCRW	Browserbase
Type	Self-hosted scraper	Managed browser infra
Deployment	Your server	Cloud (SaaS only)
Markdown extraction	✅	❌
JSON extraction	✅ schema-based	Via Stagehand + prompt
Screenshot support	✅	✅
Cold start	Fast local cold start	~1-2s (managed)
Resource footprint	Low idle footprint	Managed (hidden)
Pricing model	Credits/mo or free self-host	Session time (managed)
Best for	Scraping and extraction for AI-agent pipelines	Interactive multi-step browser sessions

Pricing math

Pricing comparison is challenging: Browserbase bills by managed session time; fastCRW bills by credits (HTTP scrape = cheap, JS render = moderate, LLM extraction = token cost).

fastCRW Cloud (credit-based)

Plan	Price	Credits
Free	$0	500 one-time lifetime credits (not a monthly meter)
Hobby	$13/mo (was $19)	5,000
Standard	$69/mo (was $99)	100,000
Growth	$279/mo (was $399)	500,000
Scale	$549/mo (was $749)	1,000,000

Credits: scrape = 1, search = 1, crawl = 1/page, extract = 1 scrape credit + the LLM cost for that page. See fastcrw.com/pricing for current tiers.

Browserbase (managed session time, estimated as of May 2026)

Public pricing not yet announced post-Series B. Historical estimates (2024–2025):

• Free tier: limited session minutes
• Starter: ~$100–200/mo for 1,000 session minutes
• Growth: ~$500–1,000/mo for 10,000+ session minutes

Rough break-even: 1,000 Browserbase session-minutes (at ~$0.10–0.15/minute for managed infra) ≈ $100–150. fastCRW Standard ($69/mo, 100k credits) covers the same workload and a great deal more.

When to choose fastCRW

1. Self-hosting is a requirement. You cannot use cloud-only services. Browserbase has no self-host option; fastCRW does (AGPL-3.0).
2. Lightweight deployment matters. Small single binary, local-first with a low idle footprint and a fast cold start. Browserbase is fully managed so footprint is hidden, but you pay for managed overhead.
3. Markdown extraction is central. You need markdown output for RAG, content pipelines, etc. Browserbase doesn't offer this; fastCRW does.
4. Primary use case is scraping, not automation. You're extracting data (markdown, JSON, HTML), not autonomously navigating. fastCRW is optimized for scraping; Browserbase is optimized for interaction.
5. Cost-conscious. fastCRW self-host is free (AGPL-3.0), and fastCRW Cloud ($13–69/mo) is cheaper per unit of extracted data than Browserbase's metered session minutes.
6. MCP integration. You're using Claude Code, Cursor, Windsurf. fastCRW has built-in MCP; Browserbase doesn't expose MCP as of May 2026.
7. Privacy / data residency. You need data on your own infrastructure. Browserbase is cloud-only; fastCRW runs anywhere (Raspberry Pi, VPS, on-prem).

Migration notes

From Browserbase to fastCRW

What transfers:

• Request shape (target URL, headers, wait conditions) → similar to fastCRW /v1/scrape JSON payload
• Response (HTML, cleaned HTML, markdown) → fastCRW supports all three formats
• Error handling (timeout, auth failure, not found) → similar error envelopes
• Authenticated pages → pass cookies and auth headers on the request; fastCRW renders and extracts them the same way

What you gain: markdown and schema-based JSON output, an MCP server, anti-bot and proxy rotation in the open core, batch scrape (POST /v2/batch/scrape), crawl, map, search, and multi-URL /v1/extract (up to 50 URLs per call).

Code migration example

Browserbase (Node):

const { Browser } = require("@browserbase/sdk");
const browser = new Browser();
const session = await browser.createSession();
// Stagehand autonomous actions, persistent state
await session.stagehand.act("Click the submit button");

fastCRW (HTTP):

curl -X POST http://localhost:3000/v1/scrape \
  -H "Content-Type: application/json" \
  -d '{"url": "https://example.com", "formats": ["markdown"]}' | jq .

One REST call replaces the session lifecycle: no instance to create, keep warm, or tear down.

Related

• Firecrawl alternatives — if you're comparing managed scraping APIs
• Kernel alternatives — if you're comparing browser infrastructure for AI agents
• How to self-host a web scraper — tutorial on running fastCRW on a $5 VPS
• Web scraping with Claude Code — fastCRW MCP integration guide