DevPipe is a toolkit for engineers building APIs and webhooks. Inspect payloads, debug CORS, validate auth headers, verify webhook signatures, and test retries and rate limits—all in one place.

All tools run in your browser. No signup required. Use them to speed up local development and integration debugging.

What you can do

• Format and validate webhook JSON payloads
• Inspect API response headers and timing
• Check CORS policy for any endpoint
• Simulate retries with exponential backoff
• Decode Bearer (JWT) and Basic auth headers
• Verify HMAC signatures (Stripe, GitHub, Shopify)
• Test how endpoints behave under many requests (rate limits)

Start from the Dashboard to see all tools.