Each Ethernaut level requires hacking a smart contract in the Ethereum Virtual Machine through a Web3 and Solidity wargame.
Revoke vs OpenZeppelin Defender
How do Revoke and OpenZeppelin Defender compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Revoke | OpenZeppelin Defender |
|---|---|---|
| What it is | Revoke.cash helps inspect and remove token approvals and wallet permissions across Ethereum and more than 100 networks. | OpenZeppelin Defender is documented within the official OpenZeppelin library and tools documentation. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Revoke and OpenZeppelin Defender.
OtterSec audits blockchain systems, including layer-one networks, wallets, DeFi protocols, bridges, and related infrastructure.
EverRise develops bridging and security applications for DeFi protocols across BNB Chain, Ethereum, Polygon, Fantom, and Avalanche.
Tulipa Capital curates DeFi risk strategies and provides dashboards and partner information for its on-chain finance work.
3F Mutual offers insurance related to a MakerDAO emergency shutdown, according to its page.
Anvil runs a local Ethereum node for development and testing, with in-memory execution, funded accounts, instant mining, and chain forking.







