The Tool Desk
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To extract a cURL command in Chrome, open DevTools before making the request, capture it in the Network panel, then right-click the request and choose Copy → Copy as cURL. Paste the result into a terminal or editor, but remove or replace credentials and short-lived tokens before sharing or replaying it.
Copy one request as cURL
- Open DevTools first. In Chrome, open the page, press F12 or Ctrl+Shift+I (Windows/Linux), or Cmd+Option+I (macOS). Select the Network panel. Chrome records requests while DevTools is open.
- Generate the traffic. Reload the page or repeat the click, form submission, login, or API action you need to capture. The request appears in the Network requests table.
- Locate the target. Use the Network type filters (such as Fetch/XHR, Doc, or Img), the text filter, or request details to narrow the list. For an API call, Fetch/XHR is usually the quickest starting point.
- Copy the command. Right-click the request, hover over Copy, and select Copy as cURL. Chrome puts a generated command on the clipboard.
- Paste and inspect it. Paste into a terminal, text editor, or API client. Check the URL, method, body, headers, cookies, and authorization values before running it.
Chrome’s documented action is Network → right-click request → Copy → Copy as cURL. The copied command mirrors the request as captured at that moment; it is not a permanent API credential or a guarantee that the request can be replayed later.
Run and understand the generated command
Run it safely
Paste the command into a private terminal or editor first. Read every option, especially -H headers, --data/--data-raw bodies, cookies, and output flags. A command can change server-side data just as the browser action did. If you only want to inspect the request, do not execute it against a production endpoint.
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What Chrome normally preserves
- The request URL and method, represented with cURL options where needed.
- Request headers such as
Content-Type,Origin,Referer, and authorization-related headers. - Cookies and other browser session state that were sent with the request.
- Form or JSON payload data for POST, PUT, PATCH, and similar requests.
Header names and the exact quoting can vary by request. Treat the output as a faithful capture to review, not as portable application code that needs no maintenance.
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Capture an API call instead of the whole page
Filter before copying
Open Network, repeat the action, and select Fetch/XHR to hide most documents, images, and stylesheets. Use the filter box for a distinctive path, hostname, or word from the endpoint. If several calls have similar names, inspect each request’s Headers and Payload tabs and copy the one whose method, URL, and body match your operation.
Preserve the request body
For an API mutation, the body is often the difference between a useful command and a harmless request. Confirm that the copied command includes the JSON or form data shown under Payload. Never paste a production password, payment value, personal data, or access token into a shared ticket or public repository.
Copy several requests
Chrome provides three related commands in the request context menu:
| Chrome option | What it copies | Best use |
|---|---|---|
| Copy as cURL | The selected request | Precise replay or documentation of one call |
| Copy all as cURL | All requests currently captured in the panel | Capturing a complete interaction when ordering matters |
| Copy all listed as cURL | Only requests remaining after your filters | Exporting a focused group of API calls |
A batch copy can contain a long sequence, unrelated assets, or requests that depend on one another. Review it before execution; do not assume that running commands in a different order will reproduce the browser session.
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Other export choices: cURL, fetch, PowerShell, or HAR
cURL
Use cURL when you want a shell command that can be saved, inspected, or run from a terminal. It is generally the most convenient format for sharing a single HTTP request across operating systems, although shell quoting differs between environments.
Copy as fetch and Copy as fetch (Node.js)
Chrome also offers Copy as fetch and Copy as fetch (Node.js). Choose these when the next step is browser JavaScript or a Node.js script and you want a fetch-shaped representation rather than shell syntax. Review credentials and browser-only options before putting the result into source control.
Copy as PowerShell
Copy as PowerShell is useful when your Windows automation runs in PowerShell and you want its command syntax. It represents the same captured request in a shell-specific form.
HAR export
Export a HAR when you need a richer capture package containing request and response metadata for debugging or handoff. Chrome offers sanitized and sensitive-data export modes. Sanitized HAR output excludes sensitive information such as Cookie, Set-Cookie, and Authorization headers by default. Export with sensitive data only when both the recipient and storage location are trusted.
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| Need | Choose |
|---|---|
| One runnable terminal request | Copy as cURL |
| Browser or Node implementation | Copy as fetch or Copy as fetch (Node.js) |
| Windows shell workflow | Copy as PowerShell |
| Full diagnostic handoff | HAR, preferably sanitized |
Why a copied cURL command fails later
Expired or missing session state
Cookies, bearer tokens, CSRF tokens, and signed URLs may expire or be tied to the original browser session. Capture a fresh request in an authorized test environment and replace only the values you are allowed to use. Do not bypass authentication or replay someone else’s session.
Origin, referer, or browser checks
Some servers validate Origin, Referer, user-agent, or other browser context. A terminal request may therefore receive a different response even when the URL is identical. Remove headers one at a time in a permitted test to identify what the server actually requires; do not weaken security controls on a system you do not administer.
Wrong method or body
A copied GET cannot reproduce a POST mutation, and a body with stale IDs can fail validation. Compare the cURL method and payload with the Network panel’s Headers and Payload tabs.
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Shell quoting and line breaks
Multiline output and quotes can behave differently in Bash, zsh, Windows Command Prompt, and PowerShell. Paste into the shell for which Chrome generated the command, or move the values into a private script and correct quoting deliberately. Avoid putting secrets in shell history; use environment variables where your API supports them.
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Bot checks, CAPTCHA, or browser-only state
A cURL client does not execute page JavaScript or interact with a CAPTCHA. If the request depends on a challenge, a service worker, a dynamically refreshed token, or an in-page state transition, capture the final authorized request and expect that it may not be independently replayable.
Security checklist before sharing
- Search the command for
Cookie,Authorization, API keys, CSRF values, signed URLs, email addresses, and personal data. - Redact secrets in tickets, chat, documentation, and repositories.
- Prefer Chrome’s sanitized HAR export for routine diagnostic sharing.
- Revoke or rotate a credential immediately if it was exposed.
- Use a test account and non-production endpoint for repeatable examples.
- Confirm that the request is authorized and that replaying it will not create duplicate orders, messages, or changes.
Import the copied request into Postman
If you want a graphical API client, Postman documents importing a single cURL request copied from Chrome DevTools. Paste the command into Postman’s cURL import, inspect the parsed URL, method, headers, and body, then replace sensitive values with environment variables before saving or sharing the collection. Importing does not refresh expired cookies or make an unauthorized request valid.
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Troubleshooting quick reference
| Symptom | Likely cause | Fix |
|---|---|---|
| The request is missing | DevTools opened after the action | Open Network first, reload, and repeat the action. |
| Too many entries | No type or text filter | Choose Fetch/XHR and filter by hostname or path. |
| 401 or 403 response | Expired credentials or required origin/session context | Capture a fresh authorized request and replace permitted values. |
| 400 response | Incorrect or stale body | Compare method and payload with the captured request. |
| Command works in Chrome but not terminal | Browser-only state, challenge, or shell quoting | Check headers and tokens, then adapt quoting for your shell. |
| Shared capture leaks data | Sensitive export or unsanitized cURL | Use sanitized HAR, redact secrets, and rotate exposed credentials. |
Frequently Asked Questions
Can I copy a cURL request after closing DevTools?
No. Chrome records requests while DevTools is open. Reopen Network, reload or repeat the action, and copy the request from the new capture.
What is the difference between Copy all as cURL and Copy all listed as cURL?
Copy all as cURL includes every request currently captured; Copy all listed as cURL includes only requests that remain after your Network filters.
Is a copied cURL command safe to post publicly?
Not by default. It may contain cookies, authorization headers, CSRF tokens, signed URLs, or personal data. Redact secrets and rotate any credential that was exposed.
Quick Recap
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