kaspa.best › Experimental wallet
🚧 In development
⚠ Experimental · mainnet · unaudited

The experimental Kaspa wallet

A non-custodial, browser-only Kaspa wallet. Keys are generated and used entirely on your device and signed with the official Rusty Kaspa engine — nothing is ever sent to us. It is also raw, unaudited, experimental software. Treat it like a science experiment, not a bank.

⚠ Read this before you touch it

Do not put any meaningful amount of money through this wallet. It exists to learn and tinker with trivial, throwaway amounts only.

  • Your funds could be lost. A bug here, in the SDK, or a mistake by you can permanently and irreversibly destroy coins. There is no undo and no support desk.
  • Your funds could be stolen. Any browser extension, injected script, or compromised dependency that runs on this page could read your seed phrase the moment you type it.
  • There is no recovery. We never see your seed or password. Lose them and your coins are gone forever.
  • For real holdings, use a hardware wallet or an official, audited Kaspa wallet — never an experiment like this.
Wallet engine: checking…

🔐 Create or restore

Generate a brand-new wallet, or restore one from an existing 12/24-word seed phrase. Everything happens in this tab.

👛 Your wallet

No wallet loaded yet.

📤 Send KAS · experimental

⚠ This signing + broadcast path is experimental and has not been independently verified. Always test with a dust amount (e.g. 0.2 KAS) first. A failed attempt will throw an error rather than guess.

🗂️ Encrypted backup

Save your wallet to a password-encrypted file (AES-GCM), or load one back. The raw seed is never written to disk in the clear. Forget the password and the file is useless — there is no reset.

How it works

Non-custodial, client-side, honest about its limits

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Keys never leave your device

Your seed and private key are created and used in this browser tab only. No server, no account, no telemetry. kaspa.best literally cannot see or recover them.

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Official signing engine

Transactions are signed locally in your browser by the Kasplex Kiwi engine — built on the core project’s Rusty Kaspa WASM. It loads from a CDN so the wallet just works; for maximum safety you can self-host it instead (see notes).

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Experimental by design

This is a community-built learning tool, not an audited product. We say so loudly because it is true. For real value, use a hardware wallet or an official Kaspa wallet.

The full risk picture — please read

  • Not financial advice. Nothing here is a recommendation to buy, hold or send anything. Cryptocurrency is volatile and you can lose money.
  • Unaudited and experimental. This software has not been security-audited. It may contain bugs that cause incorrect transactions, stuck funds, or permanent, irreversible loss.
  • Browser wallets are a soft target. A malicious extension, a compromised script, or a phishing clone of this page can steal a seed phrase the instant it is entered. Only ever use a wallet on a device you trust.
  • It loads its engine from a CDN. For zero-setup convenience the wallet pulls its signing engine from a third-party CDN — a supply-chain dependency you are trusting. For stronger guarantees, self-host the engine from your own domain and pin the version.
  • You are your own bank — and your own support desk. There is no password reset, no “forgot seed” flow, no chargeback and no one to call. A lost seed phrase or password means lost funds, full stop.
  • Tiny amounts only. Treat anything you put through this wallet as money you have already decided you can afford to lose entirely.
  • Verify everything. Double-check destination addresses character by character. Transactions cannot be reversed once broadcast.
  • Independent project. kaspa.best is not affiliated with or endorsed by the Kaspa project. Always cross-check with official sources at kaspa.org.
FAQ

Questions

Is this wallet safe to use?
No — not for any meaningful amount. It's experimental, unaudited software running in your browser. Bugs, a compromised dependency, a malicious extension, or a mistake by you could cause permanent, irreversible loss. Use only tiny test amounts you're fully prepared to lose.
Is it non-custodial?
Yes. Your seed and keys are generated and used entirely in your browser and are never sent anywhere. That also means there's no password reset and no recovery — lose your seed and your funds are gone forever.
How are transactions signed?
Locally, in your browser, using the Kasplex Kiwi engine (built on Rusty Kaspa WASM) loaded from a CDN. The signed transaction is broadcast to a public Kaspa node. Your private key never leaves the page.
Should I use this for my real holdings?
No. For any real amount use a hardware wallet or an official, audited Kaspa wallet. This exists for learning and experimentation with trivial amounts only.