Crypto Wallet lets you manage multiple wallets and cryptocurrency addresses directly inside Nextcloud. Private keys are encrypted client-side with AES-256-GCM before being stored, so only you can access them. Live price data, password-strength feedback, and per-wallet locking are included out of the box.

• AES-256-GCM encryption - private keys are encrypted with your wallet password before storage; the server never sees them in plain text
• Multiple wallets - each independently locked with its own password
• 51 supported cryptocurrencies - searchable combobox covering BTC, ETH, SOL, DOGE, LUNC and 46 more
• Live price display - current USD price and 24 h change fetched via CoinGecko
• Amount tracking - record how many coins you hold at each address; stored per-address in the database
• Portfolio total - wallet header shows the live total USD value of all addresses combined
• Hide / Show amounts - one-click toggle masks all balance figures with ••••• for privacy; state persists across page refreshes
• Coin badge - the colored circle next to each address shows the ticker abbreviation (BTC, ETH, MATIC…)
• Inline copy icon - small clipboard icon sits directly next to the public address for quick one-click copying
• Reveal private key - password-protected reveal with a 30-second auto-close timer
• Password strength indicator - real-time visual feedback when creating or changing wallet passwords
• Per-wallet lock/unlock - unlock wallets on demand; re-lock with one click
• Languages - English 🇬🇧 · German 🇩🇪

1. Clone or download this repository into your Nextcloud custom_apps/ directory:

   cd /path/to/nextcloud/custom_apps
   git clone https://github.com/markusbegerow/nextcloud-crypto-wallet crypto-wallet

2. Enable the app:

   php occ app:enable crypto-wallet

3. Open the Wallet entry in the Nextcloud top navigation bar.

1. Click + New Wallet in the sidebar and choose a name and a strong password.
2. Select the wallet and click + Add Address.
3. Type in the cryptocurrency search box to find and select a coin (51 available), enter the public address, and optionally enter a private key (requires the wallet password to encrypt it).
4. Optionally enter an Amount to track how many coins you hold at that address - the card will display the current USD value and the wallet header shows a portfolio total.
5. Use the Reveal Key button (password required) to view a stored private key - it disappears automatically after 30 seconds.
6. Use the Hide Amounts button to mask all balance figures for privacy; click Show Amounts to reveal them again.
7. Lock the wallet with the Lock button to require re-entry of the password before viewing private keys again.

• Private keys are encrypted with AES-256-GCM using the wallet password before being sent to the server. The server stores only the ciphertext.
• Wallet passwords are never stored - they are held in browser memory for the duration of the session only.
• This is a self-hosted app: your keys never leave your own Nextcloud instance.

⚠️ Important: If you forget your wallet password, there is no recovery option. Keep a secure backup of your private keys.

GPL-3.0 © Markus Begerow

If you encounter any issues or have questions:

• 🐛 Report bugs
• 💡 Request features
• ⭐ Star the repo if you find it useful!

If you like this project, support further development with a repost or coffee:

• 🧑‍💻 Markus Begerow
• 💾 GitHub
• ✉️ Twitter