Decrypt PGP Messages Online - No Installation Required
Received a PGP-encrypted message? Kleopatra Neo lets you decrypt it directly in your browser using your private key. The local decryption workflow runs client-side and does not require uploading your private key anywhere.
PGP decryption requires your private key - the secret counterpart to the public key used to encrypt the message. Only someone in possession of the correct private key (and its passphrase, if set) can decrypt and read the original message.
Kleopatra Neo's online decryption tool processes the local workflow client-side using the open-source OpenPGP.js cryptography library. Your private key is stored in your browser's local storage; the local decryption workflow does not upload, log or transmit it to any server.
To decrypt a message: import your private key into Kleopatra Neo, navigate to the key detail page, and paste the encrypted PGP block into the decrypt panel. The plaintext will appear instantly. Nothing is saved after you close the tab.
This is especially useful if you don't have the Kleopatra desktop app (part of Gpg4win) installed, or if you're on macOS or Linux where the traditional Kleopatra isn't available. Our browser tool is fully cross-platform and works on any modern browser.
Privacy by design
For local OpenPGP workflows, supported cryptographic operations are performed client-side using the open-source OpenPGP.js library. Plaintext content and private key material used for these local operations do not need to be uploaded to Kleopatra Neo servers. Optional Online Sync is separate: when enabled, supported vault data is encrypted client-side before encrypted vault data is uploaded for synchronization.
Frequently Asked Questions
Is my private key safe when I use an online PGP decrypt tool?
With Kleopatra Neo, yes. Your private key is stored in your browser's local storage; the local decryption workflow does not require sending it to any server. The crypto is the open-source OpenPGP.js library running locally.
Can I decrypt PGP without installing Kleopatra or GPG?
Yes. Kleopatra's browser tool lets you decrypt PGP messages without installing any software. It works on Windows, macOS, Linux, and mobile browsers.
What if my private key has a passphrase?
Kleopatra supports passphrase-protected private keys. You'll be prompted to enter your passphrase during the import step.
Does Kleopatra store decrypted messages?
No. Decrypted content is shown in the UI temporarily and is never saved to a server or database.