No device lock-in, no company dependency, no extra cost.
App + private keys all on USB, use on any computer.
True plug-and-play — Unplug to stay safe
Use on any computer
Keys only in your hands
Use existing USB
MetaMask stores keys on your hard drive.
Malware can scan and steal 24/7.
Ledger/Trezor costs $79-149.
Many know it's safer but find it too pricey.
Software wallets are convenient but insecure.
Hardware wallets are secure but expensive.
Bringing hardware wallet's core concept to everyone, at zero cost
Private keys not on hard drive
Memory-level protection
Re-enter for every operation
Safer than seed phrases
Honest Disclosure: ArcSign is an "enhanced software wallet", not a hardware wallet. Signing still happens on computer, but storing keys on USB greatly reduces theft risk. For large long-term storage, consider pairing with a hardware wallet.
Roadmap: Transaction decoding, Risk warnings, Hardware-backed Signing
App and wallet data all on USB, use on any computer. Unplug USB to stay safe, keys don't stay on computer.
Connect to Uniswap, OpenSea, PancakeSwap and all major dApps
For smart contract developers — Hardhat integration, secure signing, API key auto-injection
Bitcoin + 6 major EVM chains — covers most everyday assets
Auto-detect and hide scam tokens, only show verified tokens
Safer than seed phrases — just copy folder, safe for cloud, even we can't decrypt
Aggregates multiple DEXes to automatically find the best route
Your password is never saved, re-enter for every operation
Complete transaction records and asset overview
Auto logout when idle, prevent unauthorized access
Real-time balance and valuation across all chains
Secure crypto storage shouldn't be a privilege
Whether in Taipei, Tokyo, or Dubai, just need a USB to securely store assets. No regional limits, no international shipping.
No need to spend $100 on hardware wallet, get better security than software wallets. Zero barrier to start DeFi.
WalletConnect to all dApps, Swap, Staking features included. Full features, no compromise on security.
Take your wallet abroad, switch computers, handle any situation. Your assets always in your control, not tied to any device.
We believe secure crypto storage shouldn't be a privilege for the wealthy.
Whatever your budget, ArcSign lets everyone use their existing USB drive for higher-level security.
ArcSign and hardware wallets have different strengths, complementary not competing
Recommended: ArcSign
Recommended: Hardware Wallet
ArcSign will soon support hardware wallet integration, manage all assets in one interface
The biggest difference is where private keys are stored. MetaMask stores keys on your hard drive, any malware that can read files might steal them. ArcSign stores keys on USB drive, unplug and it's a cold wallet, attackers can't access non-existent files.
ArcSign provides two backup methods:
Encrypted File Backup (Recommended): Just copy the wallet folder from USB to another USB or cloud. Files are encrypted, only those with password can use it, no leak concerns.
Seed Phrase Backup: Write down 12 or 24 English words on paper. Can recover assets in any BIP39-compatible wallet.
No, ArcSign is an "enhanced software wallet". The key difference is private keys are on USB instead of hard drive, hackers can't access after unplugging. But signing still happens on computer, can't achieve hardware wallet's complete isolation.
Positioning: Safer than MetaMask, cheaper than hardware wallet (free). For large long-term storage, recommend pairing with hardware wallet.
ArcSign uses AES-256-GCM to encrypt the wallet files on your USB. Private keys never leave the drive and are never sent to any server. The source is published under Apache 2.0 on GitHub, so anyone can audit or reproduce the build: github.com/arcsignio/arcsign.
WalletConnect is an open protocol that lets your wallet securely connect to various dApps (like Uniswap, OpenSea, PancakeSwap). Simple to use: select "WalletConnect" in dApp, then paste the connection link in ArcSign. All transactions confirmed in ArcSign, ensuring your keys stay safe.
Some scammers airdrop fake tokens to your wallet, trying to lure you to malicious sites. ArcSign automatically hides these suspicious tokens, only showing known legitimate tokens. You can always choose to view filtered tokens.
ArcSign itself does not charge a swap fee — the aggregator (KyberSwap, 1inch) handles routing, and you pay the standard blockchain network Gas Fee. We compare multiple DEX aggregators automatically to find the best route.
Supports macOS (Apple Silicon), Windows (x64), and Linux (x64). All three platforms available for download.
ArcSign supports all major dApps via WalletConnect, including but not limited to: Uniswap, PancakeSwap, SushiSwap, OpenSea, Aave, Compound, etc. Any dApp supporting WalletConnect can be used with ArcSign.
Pro membership exists as an NFT on BSC chain. After purchase, NFT is minted to your wallet address. This means your membership is a digital asset that truly belongs to you, can be transferred, sold, or kept. Each NFT adds 3 wallet slots (1 NFT = 4 wallets).
Free download ArcSign, use your existing USB drive
USB drive required for wallet storage · 16GB+ recommended
SHA256 Checksum
fbe50d716b6654b7987636d8d503a14893c007f81998bf8447d145e03fcba9b7 Verify: shasum -a 256 ArcSign-1.2.3-macOS-ARM64.dmg
Open Terminal and paste this command:
bash <(curl -fsSL https://arcsign.io/install.sh) Open PowerShell and paste this command:
irm https://arcsign.io/install.ps1 | iex xattr -cr /Volumes/USB_NAME/ArcSign.app macOS quarantines apps downloaded from the internet. This command simply removes the quarantine flag without modifying the app.