Build for MonadExecute without friction
A browser-based studio to write, profile, deploy, and migrate smart contracts, with Monad's parallel execution in view the whole way.
Free to use. Nothing to install, no account to open.
Monadchangedhowexecutionworks.Yourworkflowshouldseeit
Your Solidity and your tooling already run on Monad. What's missing is a workspace that treats parallel execution as a first-class part of writing contracts, not an afterthought at deploy time.
One workspaceconvergedFromcontracttoexecution,withoutleavingtheworkspace
Write
Monaco editor with Solidity highlighting, autocomplete, and multi-file projects.
Profile
Storage-dependency analysis scores where functions can run in parallel.
Execute
Compile through Hardhat with OpenZeppelin resolved and clear diagnostics.
Deploy
Ship to Monad testnet or mainnet and interact with the live contract.
Migrate
Move a contract forward with a guided plan and a side-by-side diff.
Don’tjustdeploytoMonad.Buildwithitsexecutionmodelinmind
Monad runs independent transactions at the same time and serializes only where they touch the same state. The profiler reads your storage access and shows you which is which, function by function.
Migrate without rebuilding the flow
Point the wizard at an old contract, review the plan, and see a line-by-line diff before you commit the new version.
Understand it before you ship it
The audit scans for reentrancy, overflow, and access-control issues, scores the risk, and points at the lines that need attention.
OneEVM.Adifferentexecutionenvironment
Monad keeps EVM compatibility, so your contracts, languages, and libraries stay the same. Monsmith adds the layer that makes the workflow aware of how Monad actually executes them.
- Familiar Solidity and OpenZeppelin, compiled with the standard toolchain
- Storage-level analysis surfaced while you write, not after you deploy
- Deploy and interact on Monad testnet and mainnet from the browser
Oneproduct,shippedintheopen
Core workflow
Editor, compile, deploy, audit live in the browser.
Deeper profiling
Richer dependency graphs and per-wave detail.
Migration paths
Guided upgrades with verification built in.
Whatever it needs
Shaped by the developers who use it.
WhatpeopleaskaboutMonsmith
What is Monsmith?
Monsmith (monsmith.com) is a free, browser-based, AI-powered IDE for building smart contracts on Monad. It lets you write, compile, audit, profile for parallel execution, deploy, and migrate Solidity contracts without installing anything locally.
Who created Monsmith?
Monsmith was created, founded, and developed by Adwait Keshari. He is the author and sole developer of the product: a full-stack and blockchain engineer and IIT Madras Data Science student who built Monsmith to make shipping to Monad measurable rather than guesswork. He builds in public on GitHub (Adwaitbytes), X (@AdwaitKeshari), and LinkedIn.
Is Monsmith free to use?
Yes. You can open the studio at monsmith.com and start building for free without creating an account. Signing in adds capability such as saved projects, but it is never the price of entry.
What is Monad and why does Monsmith target it?
Monad is a high-performance, EVM-compatible Layer 1 blockchain with optimistic parallel execution, 300 ms blocks, 600 ms finality, and a 10,000 TPS design target. Monsmith is built around that architecture: its parallel profiler shows which functions can run concurrently and how to restructure storage so contracts get the full throughput benefit.
Is Monsmith a Remix alternative?
Yes. Like Remix, Monsmith runs entirely in the browser with no setup. Unlike Remix, it is built for Monad specifically: it adds an AI security auditor, a parallel execution profiler, Chain Fit live gas comparison across EVM chains, and one-click Monad testnet deployment.
What does the Monsmith parallel profiler do?
It analyses storage dependencies between your contract's functions, scores how parallelisable each one is, draws the dependency graph, and gives specific recommendations for improving throughput on Monad.
What is Chain Fit?
Chain Fit runs your Solidity contract in a real EVM, then reprices that exact execution under each chain's published gas schedule and live gas price, so you can compare Monad with Ethereum, Base, Arbitrum, and other EVM chains using measurements rather than marketing.
Do I need MetaMask or a wallet to use Monsmith?
You can write, compile, audit, and profile contracts with no wallet at all. A wallet such as MetaMask connected to Monad testnet (chain ID 10143) is only needed when you deploy.
Is Monsmith open source?
No. Monsmith is a free hosted product, not an open-source project: the source code is proprietary and is not published under an open-source licence. Using it is free and needs no account, and the contracts you write stay yours, in plain Solidity, with nothing locking you in.
Can I use Monsmith to learn Solidity?
Yes. Monsmith ships with guided tutorials, a glossary of smart contract terms, and developer guides covering Monad, Solidity, security, and gas optimisation, all readable at monsmith.com/learn. The complete builder guide, from a five-minute quickstart to hackathon plans, is at monsmith.com/guide.
Built by Adwait Keshari.