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Limits

Available on Free and Paid plans

Workers Free

Users on the Workers Free plan are limited to 10 minutes of browser rendering usage per day.

To increase this limit, you will need to upgrade to a Workers Paid plan.

FeatureLimit
Concurrent browsers per account (Workers Bindings only)3 per account
New browser instances per minute (Workers Bindings only)3 per minute
Browser timeout60 seconds
Total requests per min (REST API only)6 per minute 1

Workers Paid

FeatureLimit
Concurrent browsers per account (Workers Bindings only)10 per account 2
New browser instances per minute (Workers Bindings only)10 per minute 2
Browser timeout60 seconds
Total requests per min (REST API only)60 per minute 1 2

Note on concurrency

While the limits above define the maximum number of concurrent browser sessions per account, in practice you may not need to hit these limits. Browser sessions close automatically—by default, after 60 seconds of inactivity or upon task completion—so if each session finishes its work before a new request comes in, the effective concurrency is lower. This means that most workflows do not require very high concurrent browser limits.

Footnotes

  1. Rate limits are enforced with a fixed per-second fill rate. For example, a limit of 60 requests per minute translates to 1 request per second. This means you cannot send all 60 requests at once; the API expects them to be spread evenly over the minute. If your account has a custom higher limit, it will also be enforced as a per-second rate. 2

  2. Contact our team to request increases to this limit. 2 3