SSL/TLS Certificate Validator
Validate SSL/TLS certificates. Check expiry, chain, hostname, and common misconfigurations.
Tool Upgrade Coming Soon
This tool is currently a preview template. We are actively upgrading it to 100% blueprint compliance with 10 extra features. Like all UnQTools features, the upgraded version will run 100% locally in your browser with zero network requests.
About SSL/TLS Certificate Validator
Validate SSL/TLS certificates. Check expiry, chain, hostname, and common misconfigurations. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.
FAQ
What does this tool do?
Validate SSL/TLS certificates. Check expiry, chain, hostname, and common misconfigurations.
Is my data sent to a server?
No. This tool runs 100% in your browser. Nothing is uploaded, tracked, or stored remotely.
What extra features does this tool have?
Extras: (1) (1) Certificate parser (paste PEM), (2) (2) Expiry date check, (3) (3) Hostname validation, (4) (4) Chain validation, (5) (5) Key algorithm, (6) (6) Signature algorithm, (7) (7) SAN (Subject Alt Names), (8) (8) Common misconfigurations, (9) (9) Expiry countdown, (10) (10) Copy cert info, (11) (11) Export report, (12) (12) PWA offline
Does this work offline?
Yes — install as a PWA and use it without network.
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