Best Observability & Infra (2026)

H

Hardhat

Open source Open Source

Ethereum development environment for compiling, testing, and deploying contracts.

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F

Foundry

Open source Open Source

Fast, portable, modular Ethereum development toolkit written in Rust.

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T

Truffle

Open source Open Source

Development framework for Ethereum with testing and asset pipeline.

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B

Brownie

Open source Open Source

Python-based development and testing framework for Ethereum smart contracts.

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R

Remix IDE

Open source Open Source

Browser-based Solidity IDE for writing, testing, and deploying smart contracts.

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E

ethers.js

Open source Open Source

Complete Ethereum library for interacting with the blockchain in JavaScript.

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W

web3.js

Open source Open Source

Ethereum JavaScript API for interacting with nodes using HTTP or WebSocket.

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V

viem

Open source Open Source

TypeScript interface for Ethereum — low-level stateless primitives.

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W

Wagmi

Open source Open Source

React Hooks library for Ethereum — wallet connection and contract interactions.

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R

RainbowKit

Open source Open Source

Beautiful, fast, customisable wallet connection UI for React dApps.

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W

WalletConnect

Open source Open Source

Open protocol for connecting decentralised apps to mobile wallets.

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O

OpenZeppelin

Open source Open Source

Security standards and audited smart contract libraries for Ethereum.

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A

Alchemy

Freemium

Web3 developer platform providing APIs, SDKs, and infrastructure.

✓ Free trial available

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I

Infura

Freemium

Ethereum and IPFS API and developer tools for building Web3 applications.

✓ Free trial available

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M

Moralis

Freemium

Full-stack Web3 development platform with APIs for chains, wallets, and NFTs.

✓ Free trial available

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T

Thirdweb

Freemium

Web3 development framework with SDKs, smart contracts, and dashboard.

✓ Free trial available

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Q

QuickNode

Freemium

Blockchain infrastructure for builders — multi-chain node provider.

✓ Free trial available

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C

Chainstack

Freemium

Managed blockchain services — nodes, networks, and APIs for Web3 teams.

✓ Free trial available

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T

The Graph

Freemium

Decentralised indexing protocol for querying blockchain data via GraphQL.

✓ Free trial available

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S

SubQuery

Open source Open Source

Fast, flexible, and decentralised data indexing for web3 developers.

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A

Anchor

Open source Open Source

Solana development framework for writing secure, clean smart programs.

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S

Solana Web3.js

Open source Open Source

JavaScript SDK for interacting with the Solana blockchain.

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N

Neon EVM

Open source Open Source

Ethereum compatibility layer for Solana — run Solidity contracts on Solana.

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H

Helius

Freemium

Solana development platform with RPC, webhooks, and NFT APIs.

✓ Free trial available

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M

Metaplex

Open source Open Source

NFT standard and tooling for Solana — create, mint, and sell digital assets.

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C

Chainlink

Open source Open Source

Decentralised oracle network for connecting smart contracts to real-world data.

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T

Tenderly

Freemium

Ethereum dev platform with debugging, simulation, and alerting tools.

✓ Free trial available

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S

Slither

Open source Open Source

Solidity static analysis framework for finding vulnerabilities in contracts.

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M

Mythril

Open source Open Source

EVM smart contract security analysis tool — detect vulnerabilities automatically.

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C

Certora

Paid

Formal verification tool for smart contract security and correctness.

✓ Free trial available

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🏅 Best Observability & Infra