RSA-OAEP

Generate keys via Web Crypto, asymmetric encrypt/decrypt for short text。 Runs locally—nothing uploaded.

Public key (SPKI PEM)Private key (PKCS#8 PEM)

Encrypt

Plaintext (UTF-8)

Ciphertext (Base64)Decrypted

Encode and decode Base64, URLs, Unicode, hashes, QR codes, and common developer data formats.

RSA-OAEP: Generate keys via Web Crypto, asymmetric encrypt/decrypt for short text. Keys and plaintext stay local.

For dev/test; use audited server crypto in production.

Signup required for RSA-OAEP?▾

No. Free with no account.

Secrets uploaded?▾

No.

Production passwords?▾

Use server-side libraries.

Output format?▾

Often hex or Base64—see page.

Mobile browsers?▾

Yes; heavy tasks better on desktop Wi-Fi.

Copy or download?▾

Yes—copy text or download files as supported.