Is Cope Wallet open-source?

Yes — Cope Wallet is fully open-source. Every line of code is publicly auditable on GitHub at github.com/luci-kefs/copewallet. There are no hidden back-ends, no telemetry, and no closed-source SDKs. You can clone the repository, inspect the cryptographic routines, and deploy your own instance at any time. The entire wallet — key generation, encryption, signing, and storage — runs exclusively in your browser.

How does the system work under the hood?

When you open Cope Wallet, a fresh BIP-39 mnemonic is generated locally using the browser's cryptographically secure random number generator (window.crypto). From this seed, all wallet addresses are derived via standard BIP-32/BIP-44 derivation paths — one master seed, unlimited addresses across any EVM-compatible or supported non-EVM chain. The private key never leaves your device. All transaction signing happens locally; only the signed transaction bytes are broadcast to the network. An AES-256-GCM rolling key rotates every 60 seconds in memory, and a session lock encrypts the mnemonic into sessionStorage so the wallet survives browser refreshes without re-entry.

How do I start using Cope Wallet?

No registration, no email, no download required. Simply open copewallet.com — your wallet is generated automatically in under a second. You'll see your wallet address at the top of the dashboard. To receive crypto, tap the address to copy it or use the QR / Receive button to display a scannable QR code. To send, tap Send, enter the recipient address and amount, and confirm. To connect to a dApp like Uniswap, tap Connect and scan the WalletConnect QR code shown by the dApp. Everything works instantly from any modern browser on desktop or mobile.

How do I save and restore my wallet?

By default, your wallet exists only in memory and is wiped when you close the tab. To keep it permanently, open the Secure Vault panel and tap "Persist Current Session". Choose a strong passphrase (minimum 8 characters) and tap confirm. A PNG key file will be downloaded to your device — this image contains your encrypted mnemonic embedded via steganography. Store this PNG safely, like a hardware wallet backup. To restore later: open Cope Wallet, tap "Access Existing Vault", drop the PNG file and enter your passphrase. Your wallet will reload instantly. The passphrase never leaves your browser; without it the PNG is cryptographically worthless.

How is my key stored during a session?

Keys are stored exclusively in RAM-only volatile memory. The mnemonic is encrypted with AES-256-GCM using a rolling ephemeral key that rotates every 60 seconds. A sharded copy lives in sessionStorage (encrypted with a tab-specific key) so the wallet survives page refreshes within the same tab. Closing the browser window or tab immediately severs all state — there is no unencrypted disk footprint. DevTools detection is active: opening browser developer tools triggers progressive security responses, up to a full memory wipe.

Which chains are supported?

Cope Wallet supports all EVM-compatible chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Fantom, and any custom EVM network you add) plus a full suite of non-EVM chains: Bitcoin, Litecoin, Dogecoin, Bitcoin Cash, Solana, XRP, Stellar, NANO, Hedera (HBAR), Sui, and Aptos. Switch between networks instantly — the same seed phrase derives the correct address for each chain automatically. You can also add custom RPC endpoints, custom ERC-20 tokens, and custom API configurations from Advanced Mode.

Cope Wallet — Free Temp Wallet & Anonymous Crypto Wallet

Cope Wallet is a free temporary crypto wallet (temp wallet) and anonymous burner wallet for all EVM-compatible blockchains. No signup, no KYC, no tracking required. Generate an instant disposable Ethereum wallet address in your browser.

Temp Wallet — No Signup, Instant & Free

A temp wallet (temporary crypto wallet) lets you generate a disposable Ethereum address without creating an account. Cope Wallet is the easiest anonymous crypto wallet: open the site, get a wallet, use it. No extension required.

Anonymous Crypto Wallet with No KYC

Cope Wallet is a no-KYC crypto wallet. Zero personal data, no email, no identity verification. Private keys are generated and stored exclusively in your browser. Works as a burner wallet, disposable wallet, or secure long-term wallet.

Secure Web Wallet for Ethereum, BNB, Polygon & All EVM Chains

Cope Wallet supports Ethereum (ETH), BNB Smart Chain, Polygon (MATIC), Arbitrum (ARB), Optimism (OP), Base, Avalanche (AVAX), Fantom (FTM), and all EVM-compatible networks. Send tokens, receive crypto, and connect to dApps via WalletConnect v2.

How to Use a Burner Wallet or Disposable Crypto Wallet

Open copewallet.com — your temp wallet is generated automatically. Use it to receive or send crypto anonymously. Optionally persist it using a passphrase and a downloadable PNG key file. Works on mobile and desktop browsers.

Frequently Asked Questions

Is Cope Wallet open-source?: Yes — Cope Wallet is fully open-source. Every line of code is publicly auditable on GitHub at github.com/luci-kefs/copewallet. There are no hidden back-ends, no telemetry, and no closed-source SDKs. You can clone the repository, inspect the cryptographic routines, and deploy your own instance at any time.
How does the system work under the hood?: When you open Cope Wallet, a fresh BIP-39 mnemonic is generated locally using the browser's cryptographically secure random number generator (window.crypto). Addresses are derived via BIP-32/BIP-44 paths. The private key never leaves your device. An AES-256-GCM rolling key rotates every 60 seconds in memory.
How do I start using Cope Wallet?: No registration, no email, no download required. Simply open copewallet.com — your wallet is generated automatically in under a second. To receive crypto, copy your address. To send, tap Send and enter the recipient address and amount. Works on desktop and mobile.
How do I save and restore my wallet?: Open the Secure Vault panel and tap "Persist Current Session". Choose a strong passphrase (minimum 8 characters) and a PNG key file will be downloaded. This image contains your encrypted mnemonic via steganography. To restore: open Cope Wallet, tap "Access Existing Vault", drop the PNG and enter your passphrase.
How is my key stored during a session?: Keys are stored exclusively in RAM-only volatile memory encrypted with AES-256-GCM. The rolling key rotates every 60 seconds. Closing the tab immediately severs all state — there is no unencrypted disk footprint.
Which chains are supported?: All EVM-compatible chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Fantom) plus non-EVM chains: Bitcoin, Litecoin, Dogecoin, Bitcoin Cash, Solana, XRP, Stellar, NANO, Hedera (HBAR), Sui, and Aptos.