Tools

API Rate Limit Simulator for Request Bursts

Simulate rate limit windows to see which requests are allowed or blocked.

API Rate Limit Simulator

Simulate rate limit windows to see how bursts of traffic are handled. This helps teams tune throttling rules and understand client behavior.

How to use the API Rate Limit Simulator

  1. Enter the limit and window size.
  2. Provide request timestamps.
  3. Click Simulate to see allowed vs blocked requests.

Common use cases

  • Validating rate limit rules before rollout.
  • Testing client backoff behavior.
  • Comparing fixed vs rolling windows.
  • Explaining throttling to stakeholders.

Tips & notes

  • Use realistic timestamps from logs for better results.
  • Test edge cases near the window boundary.
  • Keep units consistent (seconds or milliseconds).

Related developer tools

  • API Payload Size Analyzer
  • API Response Comparator
  • HTTP Status Code Explainer

FAQ

What input format?
Comma-separated request timestamps.
Does it support sliding windows?
Yes. It models a rolling time window.
Is it tied to a vendor?
No. It is a generic rate-limit simulator.