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API TestingPublished: 6 min read

From Chrome DevTools cURL to an Automated Test in 60 Seconds

The exact 5-step workflow QA engineers use to turn any DevTools request into a passing automated test in Playwright, Postman, or Rest Assured.

Avinash Kamble
Founder & QA Engineer at SoftwareTestPilot
Reviewed by Priyanka G.
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2026-07-17 · By Avinash Kamble, reviewed by Priyanka G.

Manual QA who capture a request in DevTools and want a repeatable test around it can skip the "read the API docs, guess the payload" step entirely.

The 5-step workflow

  1. Reproduce the action in the app with DevTools → Network open.
  2. Right-click the request → Copy → Copy as cURL.
  3. Paste into the cURL → Code Converter.
  4. Pick a target (Playwright, Postman, Rest Assured, k6…).
  5. Move secrets to environment variables and commit.

Why this beats writing tests from docs

API docs go stale. A cURL captured from a real user session cannot be wrong — it is literally what the front-end sends. You avoid mismatched header casing, missing CSRF tokens, and undocumented required fields.

Sanitising the output

The converter automatically redacts obvious tokens (Bearer, cookies, API keys) and substitutes process.env.* placeholders. Always double-check before committing to a public repo.

Downstream: assertions

Use the JSON / JSONPath / JMESPath Tester to prototype an assertion against the response, then paste it into the generated test.

Frequently asked questions

1.Does this work with GraphQL?
Yes — GraphQL over HTTP is a POST. Copy the request, convert, and you're done.
2.What about WebSocket traffic?
cURL doesn't cover WebSockets. Use k6/ws or Playwright's WebSocket API directly.
3.Is DevTools cURL cross-platform?
Chrome outputs bash and cmd variants. The converter accepts both.
4.Where do I store secrets?
Use .env locally, and GitHub Actions Secrets (or your CI equivalent) in pipelines.
Keep going

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