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Best Web3.js freelancers to hire in 2025

Looking to hire Web3.js freelancers for your next project? Browse the world’s best Web3.js freelancers on Contra.

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Logo for Wix StudioLogo for RiveLogo for WebstudioLogo for GlorifyLogo for JitterLogo for FlutterFlowLogo for PeachWebLogo for CanvaLogo for Lottie FilesLogo for Workshop BuiltLogo for BuildshipLogo for AppsumoLogo for FramerLogo for BarrelLogo for BubbleLogo for LummiLogo for WebflowLogo for GrayscaleLogo for Stride UXLogo for InstantLogo for SplineLogo for KittlLogo for RelumeLogo for HeyGenLogo for Replo
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Explore Web3.js projects on Contra

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14
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57
Cover image for STEPN - Apps on Google Play
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Cover image for Elearn: Education Website on Behance
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49
Cover image for Boba Inu
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20
Cover image for QuantumTrade ML Suite
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23
Cover image for Matcha.xyz (0x Protocol)
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Cover image for Indigg- WalletConnect integration and payments
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Cover image for Iverifi
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Cover image for Bitasia: Where Innovation Meets dApp and Web3 Solutions
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Cover image for Reward Distribution Bot
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20
Cover image for NowBanq Exchange
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Cover image for Shuuf Tools
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Cover image for Ape's Paradise
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Cover image for Hotel Branding & Stationery Design
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Cover image for GitHub - codewithmesfin/urCoin
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Cover image for Loop NFT marketplace development and Web3 integration Project
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5
Cover image for Xylem AI - Webflow Website Development
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19
Cover image for Boba Inu
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4
Cover image for Loki.code Web3 DevOps platform design
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14
Cover image for Grant Writing for Blockchain Data Analytics project
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2
Cover image for Meter Mallows
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Cover image for Sapiens Web3 Encryption App
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37
Cover image for Ternoa | Blockchain
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5
Cover image for Decentralized Marketplace on Ethereum
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Cover image for Cross-Platform Mobile App with Flutter
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Cover image for You will get React JS | React Developer | Front End Developer
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Cover image for Optix
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Cover image for Web3 & Blockchain Powered Game
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14
Cover image for Krypt - A real time EVM based crypto sender
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Cover image for Audit Report: Viku Project
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Cover image for Audit Report: BEING Project
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Cover image for A Provably Fair Ethereum Crash Game
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Cover image for SpaceCase- user friendly storage on blockchain!
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Cover image for CareMap- giving power back to communities.
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Cover image for Smart Queue Solutions with Qnomy on Webflow
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Cover image for Launch Legends Token Launch Platform
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Cover image for Cross-Chain Bridge for BridgeFlow
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5
Cover image for Meme Token Launchpad
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Cover image for Brews Labs
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Cover image for 2219 MECHACHAIN
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Cover image for TheOrbs by BT
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Cover image for Dehub: The Decentralised Entertainment Hub
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Top services from Web3.js freelancers on Contra

Cover image for Dapp and AI-Enhanced POC/MVP Development
MongoDB

MongoDB

Smart Contract Engineer

Blockchain Developer

Dapp and AI-Enhanced POC/MVP Development

$150/hr

Cover image for Blockchain & Web3 Specialist | Smart Contract & DApp Engineer
Ethereum

Ethereum

Smart Contract Engineer

Blockchain Developer

Blockchain & Web3 Specialist | Smart Contract & DApp Engineer

Contact for pricing

Cover image for Web3 Development and Frontend Integration Services
Solidity

Solidity

Smart Contract Engineer

Blockchain Developer

Web3 Development and Frontend Integration Services

Contact for pricing

Top locations for Web3.js freelancers

Chicago, United StatesToronto, CanadaParis, FranceBarcelona, Spain

FAQs

When hiring a Web3.js expert, it's important they know JavaScript really well. They should understand Ethereum and how to make dApps using Web3.js. It’s also good if they have experience with smart contracts and blockchain networks.
First, decide what you want the project to be, like a dApp or a token contract. Create a list of features you want, like wallet integration or voting systems. Share these details with your Web3.js freelancer to make sure they understand your goals.
Set regular meetings and updates to discuss the project’s progress. Agree on the best times and methods, like video calls or emails, for communication. Always be clear about your needs and listen to any recommendations they might have.
Use project management tools to keep things organized, like task lists and timelines. Blockchain explorers can be helpful to track Ethereum transactions and smart contract status. Regular updates and sharing progress reports can also keep the project on track.
Ask about their past projects and look for similar work to what you need. Check if they understand how to use Web3.js for smart contracts and dApps. If possible, have a technical person review their code to ensure it meets your standards.
Start with a welcome session to explain your company and project goals. Provide access to necessary tools, documents, and project details. Make sure they know who to contact for help and encourage asking questions if they have any.
Work with your Web3.js expert to use secure coding standards. Ensure smart contracts are tested and secure, as blockchain projects need strong safety measures. Keep the code open for audits and peer reviews to find and fix any issues.
Review their past projects to see if they’ve worked on similar tasks. Look for experience with Ethereum and the types of dApps you want to create. Consider freelancers who clearly communicate their process and take pride in their work.
Contra is designed for both freelancers (referred to as "independents") and clients. Freelancers can showcase their work, connect with clients, and manage projects commission-free. Clients can discover and hire top freelance talent for their projects.
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