"Slither" is a static analysis framework which lets you run vulnerability detectors to find exploitable code paths before deploying your Smart Contracts to production.
During execution it prints helpful, visual information to guide you through the bug-fixing process. It also comes with a programmable API so you can prototype and implement your own custom analyses.

Slither

The "Vertigo" project is a CLI tool to run mutation tests against EVM-based Smart Contracts written via development frameworks such as Hardhat or Truffle.
Protip: If you're new to mutation testing you might want to read through the author's introductory <a href="https://medium.com/swlh/introduction-into-mutation-testing-d6512dc702b0">blog post</a>.

Mutation testing framework for Ethereum Virtual Machine (EVM) Smart Contracts.

Vertigo

Brownie is a development and testing framework for Smart Contracts targeting the Ethereum Virtual Machine. It has full support for languages like Solidity and Vyper, powerful debugging tools as well as a package manager.
Protip: Brownie also ships with a built-in console you can use to quickly interact with and iterate on your project.

Development and testing framework for Smart Contracts targeting the Ethereum Virtual Machine (EVM).

Brownie

The eth-tester project is a tool suite which provides high-level abstractions to test Ethereum dApps. It's written in Python and can be used programmatically as a project dependency or interactively via the CLI.
Ethereum Tester's implementation focuses on modularity which makes it possible to use different backends for different test scenarios.

Tool suite to test Ethereum Virtual Machine (EVM) based applications.

Ethereum Tester

"Waffle" is the most advanced Smart Contract testing framework. It integrates nicely with development frameworks such as Ganache or Hardhat, is minimalistic with only a few dependencies, has a nice and easy to remember syntax and is fast in both, development- and execution time.
Protip: You should definitely spend some time to read through their <a href="https://ethereum-waffle.readthedocs.io/en/latest/">documentation</a>. The <a href="https://ethereum-waffle.readthedocs.io/en/latest/matchers.html">Chai matchers docs</a> in particular explain how you can make use of their custom matchers to e.g. check for BigNumbers or events emitted by your contracts.

Testing framework for Smart Contracts targeting the Ethereum Virtual Machine (EVM).

Waffle

The 0xcert Framework is a JavaScript-based development platform which helps you quickly build and deploy decentralized applications (dApps). Using the framework you'll benefit from its opinionated design and the established conventions which come in handy when integrating with other dApps.
Protip: You can extend the frameworks functionality via plugins which are listed in the projects <a href="https://github.com/0xcert/framework/blob/master/README.md">README</a>.

0xcert Framework

The create-eth-app project helps you get up to speed faster by adding a scaffolding command to your CLI.
By running one command you'll create an opinionated project structure with example code for your dApp's frontend and backend. Make sure to read through the projects README to learn all the different options and configurations you use to customize the app creation process further.

Template to aid the development of Ethereum Virtual Machine (EVM) dApps.

Create Eth App

create-react-native-dapp is an npx utility which helps you bootstrap React Native mobile applications that interface with the Ethereum Blockchain.
The tight integration with projects such as Expo, Hardhat, WalletConnect and Prettier ensures a great developer experience so you can focus on your Smartphone dApp's features rather than tooling.

Quickly bootstrap React Native dApps that integrate with Ethereum Virtual Machine (EVM) Blockchains.

Create React Native dApp

DappTools is a suite of Ethereum focused CLI Tools and Frameworks for dApp development on Ethereum and EVM-based Blockchains. It ships with everything important to get from idea to deployment on mainnet smoothly. Dapp is designed in an opinionated way to make onboarding and usage fast, robust and enjoyable.
Protip 1: There are a bunch of premade DappSys Components (see "Smart Contracts" section <a href="http://dapp.tools/">here</a>) you can add to your Dapp project to iterate even faster.
Protip 2: When you're using Dapp you might also want to join the <a href="https://dapphub.chat/">DappHub Chat</a>, a self-organizing group of likeminded people who work with and on Dapp and Blockchain development in general.

Suite of Ethereum focused CLI Tools and Frameworks.

Dapp Tools

Embark is a framework which helps you build and deploy decentralized applications on EVM-based Blockchains like Ethereum or Binance Smart Chain. It seamlessly integrates with other technologies like IPFS, Swarm, Whisper and Orbit to offer decentralized file storage and communication capabilities.
Protip: Embark can be extended via plugins. If you're tackling a complex problem the core framework doesn't solve, be sure to head over to the <a href="https://framework.embarklabs.io/plugins/">plugins registry</a> and look if others faced the same issue. If not, it's simple to <a href="https://framework.embarklabs.io/docs/creating_plugins.html">author your own</a>.

Embark

Foundry is a Blockchain development framework by <a href="https://www.paradigm.xyz/">Paradigm</a>, and written in Rust.
It is composed by Cast, a CLI tool for interacting with smart contracts, and the testing framework Forge, which lets you write your tests in Solidity. Forge also allows to override the EVM state at test runtime and to fuzz your tests.
Protip: Read the <a href="https://www.paradigm.xyz/2021/12/introducing-the-foundry-ethereum-development-toolbox/">release blog post</a> to learn more about the story behind the development of Foundry.

Ethereum Virtual Machine (EVM) Development Framework.

Foundry

Hardhat Boilerplate is another Hardhat development template which comes pre-configured with useful tools such as TypeChain, Ethers, Waffle, Solhint, Solcover and Prettier.
You can use the template by running <code>git clone</code> in your terminal or clicking on the "Use this template" button on the GitHub web interface.

Yos Riady's template for Smart Contract development with the Solidity programming language.

Hardhat Boilerplate

"Hardhat Foundation" is Sushi's official Hardhat development template which powers projects like SushiSwap, BentoBox, Kashi, Shoyu and more. It ships with sane defaults and additional tooling such as Ethers, Waffle, Solhint, Tenderly, TypeChain, Prettier, etc.
You can get started with the template by running <code>git clone</code> in your terminal or clicking the "Use this template" button on GitHub.

SushiSwap's official template for Smart Contract development with the Solidity programming language.

Hardhat Foundation

Hardhat (formerly known as "Buidler") is a Blockchain development framework with a focus on configurability and modularity. The Hardhat core is a very lightweight runtime which can be easily extended via <a href="https://hardhat.org/plugins/">Plugins</a>. With Hardhat you're essentially creating your very own custom-tailored Blockchain development environment.
Hardhat core also ships with the <a href="https://hardhat.org/hardhat-network/">Hardhat Network</a>, a local Ethereum Network designed for fast iterations.

Hardhat

The "Next Web3 Boilerplate" is an opinionated project template based on Next.js and SWR.
It comes prepackaged with support for fetching and caching Smart Contract data, auto-generated types for Smart Contract ABIs via TypeChain as well as simple user onboarding through browser extensions such as MetaMask.

Template to start dApp development for Ethereum Virtual Machine (EVM) Blockchains.

Next Web3 Boilerplate

The solidity-template project is an effort to provide a solid foundation for professional, secure and efficient Smart Contract development. By leveraging well-known tools such as Hardhat, TypeChain, Ethers, Waffle, Solhint, Solcover and Prettier you can stay focused on your code without having to deal with configuration files and project setups.
Using the template is as simple as running <code>git clone</code> or clicking the "Use this template" button on the GitHub web interface.

Template to kickstart development of Smart Contracts with the Solidity programming language.

Solidity Template

Tatum is the fastest and most effective way to develop blockchain apps on 40+ blockchains. With a powerful unified API that streamlines complex blockchain operations into single API calls, lightning-fast infrastructure, and an abstraction layer with advanced built-in functionality, Tatum gives developers everything they need to build full-fledged blockchain apps, even without any blockchain development experience.
Tatum features a full-featured free plan and cost-effective paid plans with significantly more requests per second than any other provider. With an emphasis on <a href="https://docs.tatum.io/">comprehensive documentation</a> and highly responsive <a href="https://t.me/tatumio">developer support</a>, Tatum is the go-to platform of choice for over 8,000 developers.

Toolkit to build dApps across 40+ Blockchains.

Tatum

The Truffle Suite was one of the first fully-fledged Blockchain development frameworks with the aim to make dApp development easy and fun. Truffle helps you compile your Smart Contracts, manage artifacts, run tests and many more.
Also make sure to check out <a href="https://www.trufflesuite.com/ganache">Ganache</a> and <a href="https://github.com/trufflesuite/ganache-cli">Ganache CLI</a> which will help you iterate faster on your projects by running a local Ethereum Blockchain.
If you need some help getting the Blockchain data for your frontend you should also look into <a href="https://www.trufflesuite.com/drizzle">Drizzle</a>.

Truffle Suite

useDapp is an opinionated, yet extensible framework for rapid dApp development. Its main focus is to provide a "batteries included" developer experience by combining frequently used features like React hooks and the Multicall library with software engineering best practices such as integration testing and modularity.
An example which demonstrates the frameworks simplicity can be found in the projects <a href="https://github.com/TrueFiEng/useDApp">README</a>. The official documentation can be found <a href="https://usedapp.readthedocs.io">here</a>.

Frontend Framework to build fully-fledged Ethereum Virtual Machine (EVM) dApps.