Extract Public Key from Private Key Online - RSA, DSA, EC Free | 8gwifi.org

Extract Public Key from Private Key

Derive the public key from RSA, DSA, or EC private keys in PEM format

By Anish Nath - Security Engineer | @anish2good
Privacy-First No Data Stored
Private Key Input
Only required if your private key is encrypted
Supported Key Types
RSA (1024-8192 bit) DSA (1024-3072 bit) EC/ECDSA Ed25519
Public Key Output

Paste a private key and click "Extract Public Key" to see the result

OpenSSL Commands Reference
RSA Extract Public Key
$ openssl rsa -in private.pem -pubout -out public.pem
DSA Extract Public Key
$ openssl dsa -in private.pem -pubout -out public.pem
EC Extract Public Key
$ openssl ec -in private.pem -pubout -out public.pem
Related Tools
PEM Parser Decode certificates & keys
RSA Sign/Verify Digital signatures
DSA Tools Keygen, sign, verify
EC Encryption Elliptic curve tools

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