Security
SSL Certificate Format Converter
Convert SSL certificates between PEM, DER, and other common formats.
Converted Certificate
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How It Works
Choose source and target formats. The tool handles the base64 encoding/decoding and re‑wraps PEM headers/footers.
Example
PEM to DER: strips headers and joins base64 lines into a single string.
Frequently Asked Questions
Does it change the certificate contents?
No, only the container format changes.
Can I convert from PKCS#12?
PKCS#12 (PFX) is not supported yet.