Bottom left hero backgroundTop right hero background

Best JavaScript freelancers to hire in United States 2025

Looking to hire JavaScript freelancers in United States for your next project? Browse the world’s best JavaScript freelancers in United States on Contra.

Trusted by 50K+ teams from creative agencies to high growth tech companies

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
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
FAQs

How can I ensure the freelancer understands the JavaScript specifications?

Start by sharing the project requirements in detail. This includes the goals, deadlines, and any specific features needed. Make sure the freelancer feels comfortable asking questions about the project.

What should I include in the job posting to attract knowledgeable JavaScript experts?

Include details about the project's size, scope, and complexity. Mention any specific JavaScript frameworks or libraries like React or Angular. Clearly state the end goals and deliverables you're looking for.

How do I verify the freelancer's experience with JavaScript in delivering quality work?

Ask for a portfolio or examples of previous work. Look for similar projects they have completed successfully. Reviews from past clients can also provide insight into their expertise.

How can I define the scope of work for a JavaScript project effectively?

List all the tasks and goals for the project clearly. Break the work into smaller milestones. This will help both you and the freelancer track progress and make adjustments if needed.

How can I communicate my expectations to ensure clarity with the JavaScript freelancer?

Schedule regular check-ins and updates. Use simple language and avoid technical jargon unless necessary. Provide feedback as soon as possible to keep the project on track.

What important timelines should be established for a JavaScript project in the U.S.?

Set realistic deadlines considering U.S. holidays and time zones. Outline a timeline that includes key milestones. Ensure both parties agree on these dates before starting the project.

How can I measure the success of a freelance JavaScript project?

Define specific metrics or criteria for success, such as user engagement or page load speed. Review the deliverables against the initial expectations. Keep an open line for feedback to ensure the project meets your needs.

How do I arrange for seamless onboarding for a JavaScript freelancer?

Prepare all necessary resources, like access to relevant software and accounts. Share documents that explain the company culture and project context. Schedule an introduction meeting to discuss the project and expectations.

How can I ensure the JavaScript freelancer adheres to U.S. coding standards or guidelines?

Provide them with any relevant guidelines or standards your company follows. Ask if they have experience working with U.S.-based companies. Encourage them to follow industry best practices to ensure quality work.

What's the best way to handle changes or updates during a freelance JavaScript project?

Communicate any changes clearly and as early as possible. Involve the freelancer in any decision-making for changes. Work together to find a solution that works for both, keeping the project on track.

Who is Contra for?

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.

What is the vision of Contra?

Contra aims to revolutionize the world of work by providing an all-in-one platform that empowers freelancers and clients to connect and collaborate seamlessly, eliminating traditional barriers and commission fees.

Profile avatar
Cory Runnells
Milwaukee, USA
$5k+
Earned
5x
Hired
4.9
Rating
24
Followers
WEBFLOW_EXPERT

Expert

RELUME_EXPERT

Expert

Cover image for Premium Webflow Development | Cory “Flowman” Runnells
Cover image for Anagram Capital
Cover image for Mobility Operations Platform | Spare
Cover image for White-label Webflow Development for Raft.AI
Profile avatar
Nikol Hayes
PROSan Francisco, USA
$10k+
Earned
18x
Hired
5.0
Rating
17
Followers
TOP_INDEPENDENT

Top

Cover image for Skye 0.0 - Holographic AI Assistant
Cover image for ZK Records - AI-Generated Album & Music Label
Cover image for AriaLeaf AI - AI Voice Agent Platform for Dispensaries
Cover image for Abstract AI Chat: Learn Blockchain with Interactive AI & Docs
Profile avatar
Jake Schlegel
PROIndianapolis, USA
$50k+
Earned
16x
Hired
5.0
Rating
79
Followers
TOP_INDEPENDENT

Top

WEBFLOW_EXPERT

Expert

Cover image for Webflow Development for Blaze.ai
$11K+ earned
Cover image for Webflow Development for Pixlmob
Cover image for Web Design & Webflow Development for Elevate Indy
Cover image for Love Guatemala Website Design & Development
Profile avatar
Yash Bajaj
PROCalifornia, USA
$25k+
Earned
5x
Hired
5.0
Rating
8
Followers
Cover image for sparkspace.ai + website
Cover image for Handshake - Next.js based marketing site
Cover image for 28Kothi - Boutique Luxury Hotel
Cover image for Patrimonio Gallery
Profile avatar
Zebediah Miller
PROTwin Falls, USA
$1k+
Earned
2x
Hired
5.0
Rating
42
Followers
WEBFLOW_EXPERT

Expert

Cover image for webAi - New Home Page Development for Product Launch
Cover image for Home Page Development + Secondary Pages
Cover image for 🏦 Complex Animations In Webflow - Maybern
Cover image for  🎵 Product Integrated Marketing Website Built In Webflow - JKBX

People also hire

Explore JavaScript projects in United States on Contra

Cover image for 💻 Branding Kit & Design | Captiongram Mock Project
0
293
Cover image for Azymuth in Tbilisi 🇧🇷
0
127
Cover image for FIFTY Festival
0
58
Cover image for Spark Strategies
0
15
Cover image for Quartile - Fullstack Web App Development
1
48
Cover image for Quartile - Full Stack Mobile Development
1
31
Cover image for Crypto Luminary Web App
0
81
Cover image for SkyScribe Weather Telegram Bot
0
111
Cover image for Sarah Jane Dias
0
39
Cover image for NFT Mint Telegram Bot
0
294
Cover image for The 2022 Podcast Trends Report by SiriusXM | Web Development
0
213
Cover image for Cinespace | Web Development
0
16
Cover image for Spotlight | Web Development
0
64
Cover image for Music & Strategy | Web Development
0
5
Cover image for Inkling Agency | Web Development
0
14
Cover image for SeedAI | Web Development
0
12
Cover image for Authors | UI Design + Web Development
0
9
Cover image for Cast It Reach | Web Development
0
14
Cover image for elysewalker | Web Development
0
13
Cover image for REZA | Web Development
0
92
Cover image for Soundrise | Web Development
0
27
Cover image for Keep Company | Web Development
0
7
Cover image for Portfolio Website (2024) | Web Development + UI Design
0
103
Cover image for scdesign - Portfolio website in Webstudio
0
134
Cover image for Fuel Meals - https://www.fuelmeals.com/
0
12
Cover image for 
Londontown USA - https://www.londontownusa.com/
0
17
Cover image for Kamana
1
33
Cover image for Business Website | Full Stack Web Development
0
8
Cover image for Webflow Development for Pixlmob
8
332
Cover image for Webflow Development for Cognito Therapeutics
1
83
Cover image for Webflow Development for Bunkerhill
0
97
Cover image for  🎵 Product Integrated Marketing Website Built In Webflow - JKBX
9
188
Cover image for 👩🏼‍🦱 Supporting Midi's Marketing Team Through a $60M Series B
0
29
Cover image for Fully Custom WordPress Development for Healthcare Tech Startup
0
15
Cover image for WP Livestream
0
2
Cover image for Switchboard Live
0
8
Cover image for Lean Design for Startups
0
3
Cover image for Hallmark Church
0
1
Cover image for Mobility Operations Platform | Spare
1
81
Cover image for Anagram Capital
7
184
Cover image for Google Creator Labs
24
203
Cover image for Custom Website Design and Development for Financial Startup
0
13
Cover image for Make the jump to web3
2
6
Cover image for Emergency Response Portfolio
0
3
Cover image for Game Modding Portfolio
0
2
Cover image for Game Modding Portfolio
0
2
Cover image for Premium Webflow Development | Cory “Flowman” Runnells
0
23
Cover image for  S&W Waterproofing – Webflow Site with Client-First Framework
0
3

Top services from JavaScript freelancers in United States on Contra

JavaScript freelancers in United States near you

Cover image for Shiny Penny Catering
0
6
Cover image for Croo.tv — Scheduling Solution for Script-based Projects
0
6
Cover image for Advanced Web Design & Development
0
4
Cover image for Clickfunnels, Keap, Wordpress, Teachable Dev: Celebrity Clients
0
9
Cover image for Website for pressure washing business
0
1
Cover image for Orchestration for Legacy brand: Music Max
0
2

Join 50k+ companies and 1M+ independents

Contra Logo

© 2025 Contra.Work Inc