Decode X.509 Certificate
About This Spell
With a wizard's whisper, Parse PEM/DER X.509 certificates and display key details including Subject, Issuer, validity period, serial number, and Subject Alternative Names.
How to Cast the Spell
- Paste your certificate in PEM or DER format.
- Click Decode to view fields.
Privacy-first processing every time
WizardOfAZ tools do not need registrations, no accounts or sign-up required. Totally Free.
- Local only: There are many tools like Text tools, some CSV tools, List tools etc. that are only processed on your browser. Data and Documents are transformed on your machine, so nothing is sent to our servers.
- Transparent progress: Watch the processing banner appear as soon as work begins and know exactly when it completes.
- Clear safeguards: Every tool links directly to our privacy policy and has been reviewed for accessibility.
- Secure Process: Some Tools need to be processed in the servers so the Old Wizard processes your files securely on our servers, keeping them for up to 1 hour so your tool can finish its work—after that, they are automatically deleted after 1 Hour.
“The wizard does everything I need. I can merge sensitive PDFs without a second thought.”
— Morgan, legal operations lead
What is Cert Decoder?
Cert Decoder is a free developer assistant from WizardOfAZ. Use it to work with developer payloads using flexible options as part of your debugging and prototyping, without installing extra software.
Popular ways to use Cert Decoder
- Streamline debugging and prototyping by using Cert Decoder to work with developer payloads using flexible options.
- Share deliverables faster—processed developer payloads are ready for download in seconds.
- Combine Cert Decoder with other WizardOfAZ tools to keep complex workflows in one browser tab.
Examples and workflow tips
- Upload a sample file, cast the spell to work with developer payloads using flexible options, and download the processed result instantly.
- Bookmark the Cert Decoder in your browser so recurring tasks stay only one click away.
- Share the spell with teammates who need a quick, no-install way to work with developer payloads using flexible options.
Frequently asked questions
Is the Cert Decoder secure?
Yes. The Cert Decoder runs entirely in your browser, which means your code and credentials never leave your device.
What can I do with the Cert Decoder?
You can debugging and prototyping by processing developer payloads without uploading them to an external service.
Can I use Cert Decoder on mobile?
Yes. WizardOfAZ tools are responsive, so you can launch the spell on desktops, tablets, or phones without installing extra apps.
Related tools to explore
Expand your toolkit with other WizardOfAZ spells that complement Cert Decoder:
- Base64 Tool — Use it to work with developer payloads using flexible options.
- Batch Minifier — Use it to work with developer payloads using flexible options.
- CSS Minifier — Use it to work with CSS snippets using flexible options.