Welcome to Carbon Paper - Invisible ink for the digital age.
Carbon Paper is a pastebin app that lets you share long pieces of text in confidence. Before uploading your text to the server, it is end-to-end encrypted locally ensuring that nobody, except those whom you share the link with, knows what you wrote.
Carbon Paper encrypts sender names and paste content with AEAD XChaCha20-Poly1305. If a password is supplied, the paste's key is encrypted by a key derived from the password using Argon2id13. To reduce computational waste, the key encryption key is hashed with Blake3 and sent to the server. On decryption, the server will request the derived key encryption key hash before sending back ciphertext data. The password is not sent anywhere, hashed or otherwise, to prevent bruteforce attacks.
| URL | Region | Notes |
|---|---|---|
| paste.whatever.social | Germany | Operated by Whatever Social and http.james |
Refer to the wiki for more information.
yarn dev
# or start the server and open the app in a new browser tab
yarn dev -- --openTo create a production version of your app:
yarn buildYou can preview the production build with yarn preview.
To deploy your app, you may need to install an adapter for your target environment.