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OpenZeppelin is a standard smart contract library comprising common functionalities often used to build custom contracts. It is a secure platform with numerous features tailored to develop these contracts securely for complex decentralized systems.

Being a smart contract application developer, you don’t have to worry about the security tools because it provides them so that you can operate your decentralized applications efficiently. Usually, the developers build security products and features while creating smart contracts, and these tools stand in collaboration for the audit and review of smart contracts.

Programming With Solidity

Solidity is a programming language created by the Ethereum Network team, specifically for building smart contracts on Blockchain platforms.

Solidity is a contract-oriented, high-level language whose syntax is similar to JavaScript and designed to target the Ethereum Virtual Machine (EVM). With the OpenZeppelin library, only the contracts are deployed; thus, there is no need to worry about it.

OpenZeppelin developers utilize the Solidity programming language to form reusable and modular contracts within a library to build custom contracts. This programming language performs simple and modular code.

The OpenZeppelin library is a community audited code that has been tested and reviewed and claims to be the best and most famous in the industry. In short, OpenZeppelin is a simple and modular code-powered platform for everyone. You may have heard about the Poly Network hack. It is more than an attack on decentralized finance. The hackers took the advantage and exploited Poly Network’s vulnerability and speedily made $611 million.

It is necessary to pay attention to the security of decentralized finance. An OpenZeppelin security defender is a high-quality software and program where all the smart contracts can be automated securely. It is the best library for complex decentralized systems as it ensures no to fewer security problems.

Why OpenZeppelin?

While writing code from scratch, it is common to witness some security issues and vulnerabilities. However, there is a better way to secure smart contract development, and that is via Openzeppelin.

Building decentralized applications and smart contracts comes with challenges like security and difficulty in managing decentralized systems. Openzeppelin steps in here to provide products for enhanced security as it provides security audits in which the whole system’s architecture and code consistency are evaluated. The Openzeppelin security audit report analyzes the potential threats and attacks and analyses the system dynamics. It reflects the state-of-art pattern to improve the overall project quality.

However, OpenZeppelin is the potential solution to help smart contract developers with their community-vetted code. OpenZeppelin consists of reusable Ethereum contracts which reduce the risk of vulnerabilities and ensures code quality. It provides a reasonable way of organizing libraries and base contracts. This community-vetted code saves developers from code vulnerabilities.

OpenZeppelin is the world’s largest open-source library creating easy access to secure smart contract development. The other reason is the Openzeppelin wizard is the interactive smart contract generator. Moreover, anyone who wants to contribute to Contracts can easily do that because Contribute OpenZeppelin contracts exist.

Secure Smart Contract Development

A smart contract is a self-executing contract that lives on the blockchain, such as Ethereum, Solana, or Cardano. Smart contracts are immutable, meaning you can’t change them once deployed to the blockchain.

Smart contracts can create decentralized applications (dApps) and non-fungible tokens (NFTs). Decentralized applications are applications that run on the Ethereum blockchain. OpenZeppelin is a framework for smart contract development and utilizes the Ethereum blockchain. It provides a set of reusable smart contracts and a library of functions to help you develop dApps and NFTs. Cude Design can revolutionize your business with smart contract development services as our experts have extensive knowledge of every programming language. We can help enterprises smoothen their workflow and automate all the operations.

Pros & Cons Of Smart Contracts

Smart contracts offer some advantages that make them well suited for specific applications. Smart contracts have many benefits, which include:

  1. They are trustless, meaning they do not require a third party to oversee or enforce the contract. This reduces costs and decreases the chance of fraud.
  2. They are secure due to the decentralized nature of the blockchain. This makes them less susceptible to hacking than traditional contracts.
  3. They are transparent, meaning all parties can see the contract code and execution. This can help to build trust between parties.
  4. They are fast due to the lack of need for a third party to approve or execute the contract.
  5. They are programmable and can be designed to execute specific actions based on predetermined conditions automatically.

Despite their advantages, smart contracts have some limitations which should be considered before using them.

  1. Smart contracts are immutable, meaning that once deployed, they cannot be changed. Depending on the situation, this can be seen as an advantage or a disadvantage.
  2. They are often complex and challenging to understand. This can lead to errors in the contract code which can be costly or even irreparable.
  3. They can be expensive to deploy and execute. Each transaction on the blockchain costs gas, and smart contracts often require multiple transactions.
  4. They cannot consider real-world events, only data stored on the blockchain. This can limit their usefulness in some situations.

Using OpenZeppelin

OpenZeppelin is a reusable and secure library for smart contract development.

Implements standards like ERC721 and EDC20.

Can create custom contracts and decentralized systems by using solidity components.

The decentralized transactions take place using smart blockchain-based contracts and are trusted and trackable. After completing the transaction, no one can bring changes or manipulate it. OpenZeppelin contracts are written for the Ethereum blockchain in Solidity programming language.

Community audited code ensures OpenZepplin is a secure option for dApps development and NFT marketplace development to create tradeable assets. These modular contracts are reusable and consist of ERC (ERC stands for Ethereum Request for Comments”) standards.

In short, developers can stress less about security issues because the OpenZeppelin platform has security tools for smart contracts. Rather than thinking about security, the companies pay attention to pre-packaged contracts.

You can effortlessly bootstrap your contracts in OpenZeppelin Wizard as it is an interactive smart contract generator that helps scale decentralized applications. Options available for smart contract development include Tokenisation, Governance, Cross-chain, and an extensive API library. The OpenZeppelin defender is a comprehensive platform that automates and secures your smart contract operations.


Tokenization is the method of shifting the ownership rights of an asset to the digital token. For example, you can convert an asset of $10000 into 10000 tokens. A token is an Ethereum smart contract, and sending token means calling smart contract methods. Token implementation is a bit complex and using Openzeppelin contracts, and you can easily create your own token ERC20.

NFT Projects


Openzeppelin has some pre-written codes, and thus building an NFT contract using it is pretty simple. You have to use those pre-written codes and tests. Developing an NFT smart contract with Solidity might sound complex, but it is not. It would help if you went through security, gas optimization, developer environment, gas costs, etc. Open-source software like Openzeppelin Wizard-interactive smart contract generator offers impeccable functionalities to create secure smart contracts.

Smart ContRact Audit services

Openzeppelin reviews the codebase and its quality to report the highlighted issues. It privately sends the audit report to the team so that the team can fix the issues. Later on, Openzeppelin evaluates and publishes the report. Smart contracting auditing services include Defi Safety Audits, Ethereum audit, and Cybersecurity Solutions For Blockchain & Crypto Products.

ERC20 vs ERC721

OpenZeppelin provides smart contract templates for the following Ethereum tokens; ERC20, ERC721, ERC777, and ERC1155. The two of most interest can be read about below.

ERC20 – Cryptocurrencies/Tokens

ERC20 tokens are blockchain-based tokens designed to be used with applications built on the Ethereum network. ERC20 tokens are similar to other cryptocurrencies but have a few key differences. One of the most important differences is that ERC20 tokens can be stored in an Ethereum wallet and used with decentralized applications (apps) and smart contracts built on the Ethereum network.

ERC20 tokens are created using a standard set of rules that allows them to get interchanged with other ERC20 tokens. These rules are known as the ERC20 token standard, and they include things like token transfer, what information is needed to transfer the token, and how many tokens can be created.

The ERC20 token standard is significant because it allows developers to create tokens that can be used in various applications. For example, an ERC20 token could be used as a currency, a loyalty points system, or a way to track the ownership of assets.

ERC721 Non-Fungible Token Standard (NFTs)

ERC721 is a standard for non-fungible tokens on the Ethereum blockchain. Unlike ERC20 tokens, which are all interchangeable, each ERC721 token is unique.

ERC721 tokens can represent anything that is not interchangeable, such as digital art, collectables, and real-world assets like property or cars.

ERC721 tokens are stored in Ethereum wallets and can be used with decentralized applications (apps) built on the Ethereum network.

The ERC721 token standard is important because it allows developers to create tokens that can be used in various applications. For example, an ERC721 token could represent a digital artwork, a collectable, or a real-world asset like a property or a car.


If you want to launch a successful NFT project or smart contract application, it’s essential to have a smart contract that can handle the transactions and management of your tokens. In this blog, We have shared some common cases, examples, and good practices.

OpenZeppelin provides an easy way to get started with their templates, but if you need help customizing them or developing your smart contracts, Cude Design is here to help. Moreover, its library is designed in a way that will deploy only the contracts you use.

We have extensive experience creating contracts for NFT projects and can work with you to ensure your token sale is a success. Contact us today to learn more!

OpenZeppelin FAQ
What is the use of OpenZeppelin?

Openzeppelin is an open-source framework, and Openzeppelin contracts help in smart contract development by reducing the security risks. It is a set of vetted smart contracts that helps you take preventive security measures for web3 apps. It is used to keep away criminals from hampering your security system.

What is Solidity in OpenZeppelin?

Solidity is a rapidly evolving programming language designed to develop smart contracts in Ethereum.

Are OpenZeppelin contracts safe?

Openzeppelin is a standard and secure blockchain application where you can efficiently build smart contracts without worrying about security. Openzeppelin provides security products for decentralized applications to protect them from threats and attacks. You can build secure smart contracts by offering Openzeppelin contracts written in Solidity.

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