Does this tool upload my messages or keys?

No. All encryption and decryption is performed locally in your browser. No data is sent to any server.

PGP Encryption & Decryption Online

Q: Why does PGP decryption fail?

PGP decryption usually fails due to incorrect private keys, wrong passphrases, or corrupted PGP message blocks.

Q: Is PGP message encryption secure?

Yes. When used with strong keys and modern algorithms, PGP provides strong confidentiality and message integrity.

Q: Can I encrypt a message for multiple recipients?

Yes. PGP allows encrypting a message for multiple recipients by encrypting the session key with each recipient’s public key.

Q: Should I use PGP for file encryption?

For files, PGP file encryption is recommended instead of message encryption.

PGP Message Encryption Online - encrypt and decrypt PGP messages entirely in your browser. No sign-up, no server upload - your messages, keys, and passphrases never leave your device.

Explore our complete set of PGP encryption tools: PGP Key Generator & Inspector, PGP File Encryption & Decryption.

🔑 PGP Key Generator Client-Side

User ID (Name)

Email Address

Key Passphrase

Key Algorithm

RSA Key Size

Generated Public Key

Generated Private Key

🔐 PGP Message Encryption

Enter Plain Text Message

Recipient Public Key(s)

Encrypted PGP Message

🔓 PGP Message Decryption

Encrypted PGP Message

Private Key

Private Key Passphrase

Decrypted Output

Security Notice

All PGP message encryption and decryption is performed locally in your browser. Messages and keys are never transmitted to any server.

What is PGP Message Encryption?

PGP (Pretty Good Privacy) secures messages using public-key cryptography. The sender encrypts with the recipient’s public key — only the matching private key can decrypt it. PGP combines asymmetric encryption, symmetric session keys, hashing, and digital signatures to guarantee both confidentiality and integrity.

100% Client-Side
Keys & messages stay in your browser only

4096-bit RSA / ECC Keys
Generate strong key pairs instantly

Multi-Recipient
Encrypt for multiple public keys at once

How PGP Message Encryption Works

Generate Key Pair
Create a PGP public & private key (RSA or ECC).

Encrypt the Message
A random symmetric session key encrypts your plaintext.

Lock the Session Key
The session key is encrypted with the recipient’s public key.

Share Safely
Send the ASCII-armored PGP block to the recipient.

How to Encrypt a PGP Message Online

Generate or paste the recipient’s PGP public key above.
Enter the plaintext message you want to encrypt.
Click Encrypt Message to produce an armored PGP block.
Share the encrypted output with the recipient over any channel.

Common PGP Errors & Fixes

Wrong Private Key The private key does not match the public key used during encryption.

Fix: Use the private key that corresponds to the recipient’s public key.

Incorrect Passphrase Encrypted private keys require the exact passphrase set at key-generation time.

Fix: Check for trailing spaces, encoding issues, or copy-paste artifacts.

Invalid or Truncated PGP Block Decryption fails if the armored block is cut off or altered during transfer.

Fix: Copy the complete block including -----BEGIN PGP MESSAGE----- and -----END PGP MESSAGE-----.

Unsupported Key Algorithm Older or non-standard PGP keys may not be recognised by modern libraries.

Fix: Generate a fresh RSA 4096-bit or ECC key using the PGP Key Generator above.

For deeper cryptographic analysis, try our Crypto Safety Validator.

When NOT to Use PGP Message Encryption

Large files: Use PGP File Encryption instead.
Password storage: Use Argon2 or bcrypt.
Real-time / streaming data: Use symmetric AES Encryption.
Integrity-only checks: Use SHA-256 hash verification.

PGP vs RSA Encryption

RSA is a cryptographic algorithm; PGP is a complete encryption system that uses RSA alongside symmetric encryption, hashing, and digital signatures. For raw RSA operations, use our RSA Encryption Tool.

Related Encryption Tools

Frequently Asked Questions

Why does PGP decryption fail?

Most failures stem from using the wrong private key, an incorrect passphrase, or a corrupted / truncated PGP message block. Check all three before retrying.

Is PGP message encryption secure?

Yes — when used with strong, modern keys (RSA 4096-bit or ECC Curve25519), PGP provides industry-standard confidentiality and message integrity.

Can I encrypt a message for multiple recipients?

Yes. Paste multiple public keys in the Recipient Public Key(s) field — PGP encrypts the session key separately for each recipient so any one of them can decrypt with their own private key.

Should I use PGP for file encryption?

For files, use the dedicated PGP File Encryption tool. Message encryption is optimised for text; file encryption handles binary data and large payloads correctly.

Does this tool send my data to a server?

No. All encryption and decryption runs entirely in your browser via the OpenPGP.js library. No messages, keys, or passphrases are transmitted to any server at any point.

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