Is my input uploaded?

No. The website version runs locally. Input is sent only when you intentionally use the authenticated API.

Does this use a paid third-party API?

No. The result is calculated from local logic or a bundled reference dataset.

Should I independently verify the output?

Yes. Heuristic, security, legal and reference results should be checked against the authoritative source before important use.

Security & Cryptography

CSR Parser

Inspect PEM certificate-signing-request DER metadata, algorithms, object identifiers and subject strings.

Free foreverRuns in your browserNo sign-up

PEM certificate signing request

Result

Enter your values and select parse csr.

100% private - runs entirely in your browser.

Your input, keys and passwords are never uploaded. Want proof? Load this page, then turn off your internet - the tool still works. For an exact check, open your browser's DevTools Network tab and confirm no data is sent when you use it.

About the CSR Parser

CSR Parser is a deterministic browser utility. Inspect PEM certificate-signing-request DER metadata, algorithms, object identifiers and subject strings.

Processing happens locally in the website tool. The matching authenticated API endpoint uses the same shared implementation for consistent results.

Key features

Private browser-side processing
Structured copy-ready output
Shared website and API behavior
No paid external service

How to use

1Enter the requested value or document.
2Select any available options.
3Run the tool and review the structured result and stated limitations.

Examples

CSR Parser example

The interactive tool includes an editable representative input.

Frequently asked questions

Is my input uploaded?: No. The website version runs locally. Input is sent only when you intentionally use the authenticated API.
Does this use a paid third-party API?: No. The result is calculated from local logic or a bundled reference dataset.
Should I independently verify the output?: Yes. Heuristic, security, legal and reference results should be checked against the authoritative source before important use.