Introduction
BiuBiu Tools is a collection of focused, self-custodial utilities for everyday on-chain work — checking what can move your tokens, scanning balances across chains, sending to thousands of addresses, exploring networks, and more.
Everything runs in your browser, most tools need no sign-up, and your keys never leave your device. The goal is simple: take the repetitive, risky parts of using Web3 and make them calm and obvious.
Principles
- Self-custodial. You hold your keys. BiuBiu cannot move, freeze, or recover your funds. Tools that sign do so with your wallet, in front of you.
- Privacy-first. Work happens client-side wherever possible. We avoid collecting data we don’t need, and many tools require no account at all.
- No blind signing. Transactions are shown in human-readable terms before you approve them — never a wall of hex.
- Free and open. The toolkit is open source on GitHub so anyone can audit exactly what each tool does.
- Multi-chain by default. Tools work across the major EVM networks, plus any custom chain you add.
What’s inside
A few of the tools you’ll find:
- Revoke Approvals — find every contract that can still move your tokens and NFTs, then shut off the risky ones.
- Balance Radar — bulk-check balances for thousands of addresses across chains and export a report.
- Token Sender — batch-send a coin or token to many recipients from your own wallet.
- Chain Explorer — browse 800+ networks, find RPCs and explorers, and add a chain to your wallet in one click.
Where to go next
- Getting started — open your first tool in under a minute.
- Wallets & accounts — the built-in passkey wallet and the external wallets BiuBiu supports.
- Privacy & security — the trust model, in plain language.
If you’d rather read the why than the how, the blog tells the story of what we’re building and the decisions behind it.