SSL/TLS Toolkit
Professional SSL/TLS toolkit including CSR generator, certificate decoder, and more. Private keys are processed in your browser; certificate chain completion runs on AutoSSL after Cloudflare verification.
Browser Processing
Private keys stay in your browser. Public certificates are submitted to AutoSSL only for certificate chain completion.
No Installation
No OpenSSL required, just open your browser and use
Professional & Reliable
Industry standard compliant, compatible with all major CAs
Available Tools
SSL Certificate Chain Completer
Complete missing intermediate certificates and export fullchain.pem or a CA bundle for deployment.
- AIA Issuer Downloads
- Issuer Signature Checks
- fullchain.pem & CA Bundle
- Cloudflare Verification
CSR Generator
Generate SSL/TLS Certificate Signing Requests. Supports RSA and ECDSA algorithms, configurable for multiple domains and wildcards.
- Fully Local Generation
- RSA/ECDSA Support
- Multiple Domains
- No Installation Required
SSL Certificate Decoder
Decode and inspect a PEM or Base64 X.509 certificate before installation or renewal.
- Browser-only Parsing
- Domains & Expiry
- SHA-256 Fingerprint
- X.509 Extensions
CSR Decoder
Decode and inspect a PKCS#10 Certificate Signing Request before submitting it to a certificate authority.
- Browser-only Parsing
- Subject & SAN Details
- Signature Verification
- Public Key Inspection
CSR & Private Key Matcher
Check whether a CSR and private key belong to the same key pair before requesting or installing a certificate.
- Browser-only Matching
- RSA & ECC Support
- SPKI SHA-256 Comparison
- CSR Signature Verification
Certificate Key Matcher
Check whether an SSL certificate and private key belong to the same key pair before deployment.
- Browser-only Matching
- RSA & ECC Support
- SPKI SHA-256 Comparison
- Certificate Details
PKCS#1 / PKCS#8 Converter
Private and public key format conversion between PKCS#1 and PKCS#8. The current format is detected automatically.
- Browser-only Conversion
- Automatic Format Detection
- RSA & EC Private Keys
- RSA Public Keys
SSL Certificate Converter
Convert SSL certificates between PEM, DER, CRT, CER, P7B, and PFX/P12 for deployment on your server or cloud platform.
- Browser-only Conversion
- RSA & ECC PFX Export
- Certificate Chain Support
- PFX Certificate & Key Extraction
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