🔧 ethui stacks overview: • Private persistent anvil instance • Authenticated RPC + private API key • Unique chain ID (replay protection) • All cheatcodes: setBalance, impersonate, snapshots • Fork any EVM chain • Built-in explorer Local anvil power, cloud persistence. Try it: stacks.ethui.dev

ethui detects whether a chain is anvil-based using the anvil_nodeInfo RPC endpoint When detected, dedicated sync continuously tracks the chain head and correctly identifies: • New blocks • Reverts to prior snapshots • Full restarts Real-time sync with your anvil development workflow

💡 Testnet problems ethui stacks solves: ❌ Distributing gas to testers ❌ Broken/incompatible mocks (different MockUSDC everywhere) ❌ Slow deploy cycles ❌ Network congestion ✅ anvil_setBalance - instant funding ✅ Fork mainnet - real protocols ✅ Instant rollbacks stacks.ethui.dev

🚀 Introducing ethui stacks: one-click private testnets We've been using this internally for the past year. Now it's yours. Create on-demand Ethereum testnets with: cloud-persistent anvil with unique chain IDs, private API keys, all cheatcodes, fork any network, built-in explorer.

What's in your Ethereum dev stack right now? Drop your setup below: • Local node (anvil, hardhat, ganache?) • Testing tools • Wallet you're using • IDE Curious what other devs are running

Restarted or reverted your anvil chain, and now Metamask won't sign transactions? Most wallets cache nonces locally. When anvil resets, their cached nonce no longer matches the chain. ethui calculates nonces from scratch every time Works correctly with anvil snapshots, reverts, and full restarts

ethui automatically uses anvil_impersonateAccount when submitting transactions to anvil chains This prevents replay attacks when testing with mainnet chain IDs No signatures from your private keys. No unlocking wallets. Security feature that happens to be convenient for development

Most wallets force you to unlock when you first open them ethui defers password input until a signature is actually needed Multiple wallets, various types, unlock only when required Cached in-memory for a few minutes using secure isolation to prevent leaks

What's your main Ethereum dev goal for 2026? A) Ship my first dapp B) Contribute to open source C) Master smart contract security D) Build multi-chain applications Vote below and tell us what you're working on 👇

2025 for ethui: — Improved local dev workflows — Added simulation features — Expanded multi-wallet support — Grew the contributor community Thanks to everyone who used ethui, filed issues, and contributed code this year. More coming in 2026!

Transaction confirmations slow down your dev workflow Every test requires a manual review. Every deployment adds friction. ethui lets you skip transaction reviews in local dev Test faster. Deploy faster. Iterate faster.

ethui's ABI explorer scans your compilation artifacts and gives you a UI to interact with contracts directly No external tools. No manual setup. Just build and start testing Fast feedback for local Ethereum development

What was your biggest web3 dev win in 2025? Shipped a new dapp? Finally got multi-wallet testing working? Contributed to an open source project? Drop it below. We want to hear what you built this year

Test your dapp from any wallet's perspective with ethui's impersonator wallets. No private key. Input any address and interact as if you own it. Works with anvil chains (local/remote): submits unsigned transactions via anvil's impersonation. Perfect for testing without accessing actual wallets.

Why local-first for Ethereum dev? Fast and reproducible environment. No network delays. Quick feedback loops. ethui integrates with anvil and forge to give you a complete local environment Build and test contracts without waiting for network confirmations ethui.dev

Interact with contracts using ethui Explorer Connect to Anvil chains (local/remote), see transaction history, interact with contracts ABIs from your file system automatically decode contracts when connected to ethui wallet explorer.ethui.dev or clone from GitHub

Testing on multiple chains at once? Most devs: Switch networks manually, lose context, restart tests ethui: Connect to multiple chains simultaneously, no switching needed Your local dev environment shouldn't fight you

🔮 Transaction simulations Preview txs before sending. Uses revm (same as forge) locally—no 3rd parties, works on Anvil. Debug without updating state. ethui.dev/docs/features/simulations #EthereumDev #Web3 #DevTools

Why ethui is desktop-native: ✓ Not browser-sandboxed ✓ System-wide reach ✓ Better performance ✓ Works with any browser Built for developers who need real tools, not browser extensions. ethui.dev #EthereumDev #DevTools #Web3

Testing with multiple wallets? Most require separate browser profiles. ethui: setup multiple wallets and manually switch between them seamlessly. Connect different chains simultaneously. No browser profile hacks. ethui.dev/docs #EthereumDev #DevTools #Web3

Testing with specific accounts on Anvil? ethui auto-uses anvil_impersonateAccount—no private key exposure, no manual signing, secure testing. One less thing to think about. #EthereumDev #DevTools #Web3

⚡ Dev tip: ethui's Fast Mode skips transaction confirmations on test chains. Auto-detects test networks, maintains mainnet security. Cuts testing time in half. What's your biggest time sink during local testing? #EthereumDev #DevTools #Web3

We're at DevConn in Buenos Aires. If you see someone in an ethui shirt, come say hi 👋

Why ethui's anvil support matters: Most wallets break on anvil restarts because they cache nonces. ethui detects anvil, recalculates nonces from scratch, tracks restarts/reverts real-time. Your wallet just works. ethui.dev/docs/features/anvil #EthereumDev #Anvil #DevTools

Testing with multiple wallets? ethui: Multiple wallets in one instance, seamless switching, no browser profile hacks. What's your multi-wallet workflow? ethui.dev #EthereumDev #DevTools #Web3

🔧 Forge traces that actually work Problem: Traces grow large and become unreadable. ethui's solution (in dev): UI with filtering, ABI decoding, clear test results. #EthereumDev #Web3 #DevTools

How ethui integrates with Foundry: 🔧 Monitors forge outputs in real-time 🔧 Matches bytecode to contracts 🔧 Auto-detects anvil restarts 🔧 Indexes ABIs instantly 🔧 Syncs nonces Everything stays in sync. Automatically. #EthereumDev #Foundry #DevTools

🔍 Your own local blockchain explorer ethui connects to Anvil: navigate txs, auto-identify contracts, interact with ABIs, and real-time decoding. All local. No external dependencies 👇 #EthereumDev #Web3 #DevTools

💬 What's your local Ethereum dev setup? Hardhat? Foundry? Remix? ethui? Other? Reply with your stack + biggest pain point. Your feedback shapes our roadmap. ethui.dev #EthereumDev #DeveloperWorkflow #Web3Tools

New to ethui? Quick intro. Ethereum toolkit for local dev: Anvil-aware syncing, Foundry integration, multi-wallet, Fast Mode, desktop-native. Built for testing locally. 👇 ethui.dev github.com/ethui/ethui #EthereumDev #Web3 #Ethereum #DevTools

📢 ethui needs contributors Open source Ethereum toolkit. Rust (61.7%) + TypeScript (37%), MIT licensed, Tauri-based. In development: Forge traces UI. Start here: github.com/ethui/ethui/... #EthereumDev #Web3 #Ethereum #DevTools

Tired of waiting for transaction confirmations while testing your smart contracts? ethui's local-first approach lets you skip the wait and focus on building. What's your biggest time waster in development? 👇 #EthereumDev #Web3 #Ethereum #DevTools

Last day: ethui Gitcoin round closes tonight. Anvil-aware syncing, instant ABI detection, multi-wallet desktop integration - all open-source. Support → giveth.io/project/ethui With quadratic funding, donor count matters more than amount. Your $1 gets matched. Final chance.

1/ Most wallets are for users. ethui is for developers. ✅ Anvil-aware syncing ✅ Finds forge outputs in filesystem ✅ Multiple wallets ✅ Fast Mode for test chains ✅ Desktop-native, not browser-restricted

1/⚡ Fast Mode: Skip transaction dialogs during development When using anvil-based chains, ethui lets you enable Fast Mode—much faster feedback loops without compromising security.

Most wallets (like MetaMask) break when you restart Anvil. ethui detects these chains automatically and calculates nonce from scratch 👉 ethui.dev/docs/feature... This specialized sync logic requires ongoing maintenance. Gitcoin round → giveth.io/project/ethui #EthereumDev #Web3 #DevTools

Open-source dev tools don't maintain themselves. our Gitcoin round → giveth.io/project/ethui Building local-first tools needs Foundry compatibility, bug fixes, stability, performance for large projects, and community-requested features. Your $1 counts. #OpenSource #DevTools #Ethereum

🎥 Desktop-native advantage: ethui connects to Chrome and Firefox simultaneously on different chains. Browser extensions can't do this👇 Building this requires ongoing maintenance. We're in the Gitcoin round → giveth.io/project/ethui #EthereumDev #Web3 #DevTools

ethui is in the Gitcoin funding round! We're building anvil-aware, foundry-integrated dev tools for Ethereum. Local-first, desktop-native, open-source. Quadratic funding = more donors = bigger match. Your $1 matters. Support → giveth.io/project/ethui #EthereumDev #Web3 #Ethereum #DevTools

🛡️ Impersonator Wallet demo Testing with mainnet chain IDs? Worried about replay attacks? ethui lets you test by impersonating any account. ✅ No wallet unlocking ✅ No signatures from real keys ✅ Test instantly ✅ Fast mode on secure wallets See it in action👇 #EthereumDev #Web3 #DevTools

Debugging smart contracts without proper tools is like trying to fix a watch with oven mitts. ethui gives you the precision tools you need for #Ethereum development. #EthereumDev #Web3 #DevTools

❓Friday question for #EthereumDev community: What's your favorite development hack that saves you time? Ours is using ethui to skip transaction confirmations during testing, cutting development time in half. #Web3 #Ethereum #DevTools

ethui vs. Traditional Workflow: 🔹 Setup time: 2 mins vs. 30+ mins 🔹 Feedback loop: Instant vs. 15-30 secs per action 🔹 Context switches: 0 vs. 3+ per action 🔹 Wallet management: Integrated vs. Multiple browsers Work smarter, not harder. What's your setup time? #EthereumDev #Ethereum #DevTools

Why local-first matters for #Ethereum development: — Faster feedback loops — Reproducible environments — No test ETH needed — Consistent behavior ethui integrates directly with anvil and forge to make this seamless. 🤔 Are you Team Local-First or Team Cloud? Why? #EthereumDev #Web3 #DevTools

🔥 Hot take Friday: "Browser-based development is holding back web3 innovation" Desktop-native tools offer: ✅ Better performance ✅ Deeper OS integration ✅ No sandbox limitations ✅ True multi-tasking Agree? Disagree? Let's debate 👇 #EthereumDev #Web3 #Ethereum #DevTools

🎥 Experience ethui's contract explorer: seamlessly interact with contracts without external tools. ✅ Instantly detect and interact with contracts directly from your desktop. Watch it in action👇 #EthereumDev #Ethereum #DevTools

1/ September wrap-up 🎉 This month we shared: ✅ Why ethui exists (real developer problems) ✅ How it fits your workflow ✅ What makes desktop-native development better ✅ Features that solve actual pain points

Ethereum Development ❌ Before ethui Multiple browser profiles Constant transaction confirmations External block explorers ✅ After Multiple wallets, one environment Skip confirmations, instant feedback Integrated contract explorer Which pain point hits hardest? #EthereumDev #Ethereum #DevTools

How ethui fits into your development workflow: 1. Start your local node 2. Open ethui 3. Connect your wallets 4. Interact with contracts 5. Build faster No more juggling tools or browser tabs. 🤔 What's step 6 in your current workflow? #EthereumDev #Web3 #Ethereum #DevTools

How developers are using ethui: 🔹 DeFi protocol testing with multiple wallets 🔹 NFT minting and verification workflows 🔹 DAO governance simulation 🔹 Cross-contract interaction testing Which workflow would you like us to dive deeper into? #EthereumDev #DevTools ##EthereumWallets