New developer utility
Smart Paste Detector Online
Paste unknown technical text and detect whether it looks like JSON, JWT, Base64, URL, XML, CSV, cURL, robots.txt, or another common web format.
Use this toolPaste input and run the tool.
How to use Smart Paste Detector Online
Smart Paste Detector Online is a focused browser tool for quick technical checks. Paste a safe sample, run the tool, and copy the output into documentation, tickets, QA notes, or development workflows.
Paste unknown technical text and detect whether it looks like JSON, JWT, Base64, URL, XML, CSV, cURL, robots.txt, or another common web format.
Input example
eyJhbGciOiJub25lIn0.eyJzdWIiOiIxMjMifQ.Output example
JWT: token-like header.payload.signature format
Base64: base64-like encoded textPrivacy
This tool is designed for browser-side processing. Avoid pasting passwords, private keys, access tokens, customer records, confidential URLs, regulated data, or unreleased business information.
FAQ
Smart Paste Detector FAQ
Is this tool free?
Yes. It is free to use online and does not require signup.
Can I upload a file?
Yes. Text-like files can be loaded into the input panel. Review the content before running the tool.
Does this page have hreflang?
Yes. The page links to English and all localized versions for search engines.
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English
Smart Paste Detector Online
Paste unknown technical text and detect whether it looks like JSON, JWT, Base64, URL, XML, CSV, cURL, robots.txt, or another common web format.