---
title: "What is EVM (Ethereum Virtual Machine)?"
canonical: https://wavect.io/glossary/evm/
language: en
description: "The runtime that executes smart contracts on Ethereum and the dozens of chains that copied its bytecode format."
image: "https://wavect.io/img/general/bak/open_graph_preview.jpg"
---

TECHNOLOGIES

# EVM

Ethereum Virtual Machine

The runtime that executes smart contracts on Ethereum and the dozens of chains that copied its bytecode format.

Last reviewed: 2026-05-24 by [Kevin Riedl](/team/kevin-riedl/) [wiki ↗](https://www.wikidata.org/wiki/Q139796365)

The EVM is the execution layer Ethereum invented and that became the de-facto standard for [smart-contract](/glossary/smart-contract/) chains. A contract compiled to EVM bytecode runs on Ethereum mainnet, Polygon, Arbitrum, Optimism, Base, BNB Chain, Avalanche C-chain, and a long tail of L2s and sidechains.

The practical implication: write your contracts in Solidity (or Vyper), test on Ethereum testnets, and deploy to whichever EVM chain matches your cost and latency target. The portability is real. The trade-offs between chains are speed, finality, decentralisation, and which L2 framework they are built on.

Worked example of choosing a chain: a DeFi protocol that needs to compose with existing lending and DEX contracts belongs on Ethereum mainnet or a major L2, where that ecosystem lives, even at higher gas. A high-volume consumer app where users will not tolerate dollar-scale fees belongs on an L2 like Arbitrum, Optimism, or Base (same security model, a tenth to a hundredth the cost) or off the EVM entirely toward [Solana](/glossary/solana/). The decision is the security-versus-cost trade-off, not whichever chain has the loudest marketing this quarter.

The honest trade-off and the mistake that catches teams repeatedly: EVM-compatible is not the same as Ethereum-equivalent. Subtle differences in gas pricing, precompiles, opcode support, and consensus behaviour mean a contract that passes on mainnet can break on a sidechain. The portability is a starting point, not a guarantee; always re-test per chain before deploying. Account-level UX features like [account abstraction](/glossary/account-abstraction/) also vary in maturity across chains, so confirm support before you promise it.

The deeper trade-off is what you give up for cheap fees. Moving off mainnet onto a cheaper EVM chain almost always means inheriting a different trust model: a sidechain like Polygon PoS runs its own validator set rather than borrowing Ethereum’s security, and a rollup adds a sequencer you now depend on and a withdrawal delay back to L1. None of that shows up in the gas-fee comparison a vendor puts in the deck. Decide what your application actually needs to guarantee before you optimise for the per-transaction cost. For [web3](/glossary/web3/) builds we default to Solidity over Vyper for the broader tooling and auditor familiarity, unless there is a strong reason to swim against the current.

// FAQ

## FAQs

### Is EVM-compatible the same as Ethereum-equivalent?

No, and this catches teams regularly. Subtle differences in gas pricing, precompiles, opcodes, and consensus behavior mean a contract that works on Ethereum mainnet can break on a sidechain. Always re-test per chain before deploying.

### Which EVM chain for production?

Ethereum mainnet for maximum trust assumptions and DeFi composability, at the highest gas cost. L2s (Arbitrum, Optimism, Base) for the same security model at one-tenth to one-hundredth the cost. Sidechains (Polygon PoS, BNB) for cheaper still with weaker guarantees. Pick on the security and cost trade-off, not the chain’s marketing.

### Solidity or Vyper?

Solidity is the industry default with the broadest tooling, auditor familiarity, and library support. Vyper trades that ecosystem for a smaller surface area and clearer semantics. For production, Solidity unless you have a strong reason to swim against the current.

Related terms

- [Web3](/glossary/web3/)
- [Smart Contract](/glossary/smart-contract/)
- [Solana](/glossary/solana/)
- [Account Abstraction](/glossary/account-abstraction/)

Related services

- [Blockchain](/services/blockchain/)

Related case studies

- [Account Abstraction](/case-studies/account-abstraction/)

Related guides

- [How to choose a software development agency](/software-development-guide/how-to-choose-a-software-agency/)

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