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In Chrome: open DevTools, select Network, trigger the action that sends the request, right-click that request, and choose Copy > Copy as cURL. Paste the result into a terminal or editor, inspect it for secrets, then run it only when you understand what it will send. Firefox offers the same capability from its Network Monitor.
Copy one request as cURL in Chrome
- Open the page that performs the request.
- Open DevTools with F12, Ctrl+Shift+I on Windows/Linux, or Cmd+Option+I on macOS, then select the Network panel.
- Reproduce the action you want to examine: submit a form, load data, sign in, or click the relevant control. Chrome records network activity while DevTools is open.
- Find the request in the Requests table. Use the filter box, request-type buttons, or the request’s domain to narrow the list.
- Right-click the request row and choose Copy > Copy as cURL.
- Paste the command into a text editor first. Check the URL, method, headers, cookies, authorization values, and body before running it.
A copied command may look like this (the exact headers and data depend on the request):
curl 'https://example.com/api/items'
-H 'accept: application/json'
-H 'content-type: application/json'
-H 'authorization: Bearer REDACTED_TOKEN'
--data-raw '{"page":1}'Do not assume that every request is a GET. DevTools can include a method, request body, cookies, custom headers, compression flags, and other options needed to describe the observed request.
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Copy multiple or filtered requests in Chrome
Copy every request
Right-click in the Network request list and choose Copy > Copy all as cURL. This produces a cURL representation for the recorded set, which can be large and may contain unrelated assets such as scripts, images, and analytics calls.
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Copy only the requests currently listed
Apply a filter first, then choose Copy all listed as cURL. This is useful when you want only fetch/XHR calls, only a particular domain, or only requests matching a search term. Confirm that the filter really excludes authentication or setup calls your replay depends on.
Other Chrome export formats
The same context menu can offer Copy as PowerShell, Copy as fetch, and Copy as fetch (Node.js). Choose cURL when you need a shell command or want a compact description that can be translated into another client later.
Copy a request as cURL in Firefox
- Open Firefox Developer Tools and select Network Monitor.
- Perform the action that generates the request.
- Context-click (right-click) the request row.
- Open Copy, then select Copy as cURL.
Firefox’s generated command can represent several request details:
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-X. - URL-encoded form data may use
--data. - Multipart content may use
--data-binary. - A protocol other than HTTP/1.1 may be represented with
--http/VERSION. - A HEAD request may use
-I. - Headers are represented with header options such as
-H. - Compressed responses may use
--compressed, allowing cURL to decompress them.
These are possible encodings, not a checklist that appears in every copied command.
Read and edit the generated command safely
Identify the request basics
- URL: Check the host, path, query string, and whether the request points to a test or production system.
- Method: GET usually reads; POST, PUT, PATCH, and DELETE can create, change, or remove data.
- Headers: Look for
Authorization, cookies, CSRF tokens, content type, origin, and custom application headers. - Body: Determine whether it is JSON, form-encoded data, multipart content, or raw text.
- Output: Add options such as
-ifor response headers,-vfor diagnostic detail, or-o result.jsonto save the response.
Remove secrets before sharing
Browser requests commonly carry session cookies, bearer tokens, API keys, private URLs, account identifiers, and personal data. Redact or replace those values before posting a command in a ticket, chat, repository, shell history, or script. Treat the command as sensitive even if the URL itself is public.
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Chrome also provides HAR export choices that distinguish sanitized data from exports containing sensitive data. Choose the sanitized option when you need to share a network capture, and inspect the copied cURL command independently because it may still contain credentials.
Make a replayable version
Replace short-lived values with environment variables rather than hard-coding them:
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curl 'https://example.com/api/items'
-H "Authorization: Bearer $API_TOKEN"
-H 'Content-Type: application/json'
--data-raw '{"page":1}'For a safe diagnostic replay, change a mutating method to a documented test endpoint where possible, remove unnecessary cookies, and avoid sending the command against production until you know whether it changes state.
Why a copied cURL command can behave differently
Copy as cURL describes the HTTP request DevTools observed; it does not export the entire browser environment. A replay can fail or return different data when:
- Cookies or authorization tokens have expired.
- The server requires a fresh CSRF token or a value generated by an earlier request.
- The browser supplied client-side state, service-worker behavior, or JavaScript-generated data that is not represented in the command.
- The request depends on a sequence of calls, a particular account state, or a one-time nonce.
- The server applies different policy to the browser’s user agent, IP address, region, or protocol.
- The page changed after you captured the request.
When a replay fails, compare the copied command with the request’s Headers, Payload, and Response tabs, then capture a fresh request rather than endlessly reusing stale credentials.
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Troubleshooting common problems
The Copy as cURL option is missing
Make sure you are right-clicking a request row in the Network panel, not the page, a header field, or the Console. If the list is empty, reload with DevTools open and perform the action again. A filter may also be hiding the request.
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The command returns 401 or 403
The copied cookie, bearer token, CSRF token, or signed URL may have expired or been scoped to the browser session. Capture a new request, redact only for sharing, and use the fresh value locally. Check whether the request requires an earlier login or token-generation call.
The command returns 415 or malformed-data errors
Verify the content type and body encoding. Preserve JSON punctuation, form encoding, or multipart boundaries exactly as generated. Do not manually convert --data-binary to a plain string when the endpoint expects multipart data.
The command downloads compressed or unreadable output
Keep --compressed when Firefox generated it, or save the response with -o and inspect the file type. Use -i or -v to separate response headers from the body.
The request works in the browser but not in a shell
Check for missing dependent requests, browser-only state, an expired token, a required origin or referer header, and differences in DNS, proxy, IP, or user agent. Reproduce the action, copy the newest request, and compare every meaningful header and payload field rather than adding headers at random.
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Multiple copied requests are noisy
Use Chrome’s request-type and text filters, then choose Copy all listed as cURL. For a single API call, prefer the individual request menu so you do not accidentally replay analytics, asset, or tracking calls.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Safari and version differences
A WebKit issue titled “Web Inspector: ER: Copy as cURL” was marked resolved fixed in 2016. That historical record confirms implementation work at that point, but it does not establish the current menu path or availability in every Safari release. Check the Web Inspector installed with your Safari version before relying on Safari-specific instructions. Chrome and Firefox provide the documented Network/Network Monitor context-menu workflows described above.
Or skip the browser setup
If your actual goal is a clean screenshot or PDF rather than replaying an HTTP request, ScreenshotNeo provides a direct API call. It accepts consent banners like a visitor and removes more than 60 known consent platforms, newsletter popups, and chat widgets before capture; each cleanup step can be disabled. Bot checks, CAPTCHAs, blank pages, timeouts, failed loads, and cache hits are not billed, and the response identifies the result with X-Page-Verdict and X-Billed headers. Its MCP server lets Claude, Cursor, and other MCP clients call take_screenshot, get_page_info, and capture_pdf.
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cURL
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpPython
import requests
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open("shot.webp", "wb").write(r.content)Node.js
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FAQ
Does Copy as cURL copy the response too?
No. It copies a command that describes the request. Run it separately if you need to capture the current response.
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Can I copy a request before it finishes?
You can copy a recorded row, but a pending request may lack final information or may still depend on a response. For reliable replay, wait until the request completes when practical.
Is a copied cURL command portable between operating systems?
The HTTP options are portable, but quoting, line-continuation characters, shell variables, and certificate or proxy configuration differ between shells. Review the command for Bash, PowerShell, or another shell before execution.
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Does Copy as cURL copy the response too?
No. It copies a command that describes the request; run it separately to obtain a response.
Can I copy a request before it finishes?
You can, but waiting for completion generally gives a more complete and dependable request description.
Is a copied cURL command portable between operating systems?
The HTTP options are broadly portable, while quoting and line-continuation syntax vary by shell.
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