React.js is an efficient, declarative, and flexible open-source JavaScript library that is useful for developing user interfaces specially for single page apps. With React.js, users can build complex user interfaces from “components.” Components are small and isolated pieces of code.

React.js can also be used as a base in the building of both mobile and single-page apps. Although, complex React.js apps usually require additional libraries for interaction, routing, and state management with an API (Application programming interface).

React.js makes it possible for developers to design large web apps which can change data, without reloading the page.

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    Looking an expert in Java front end ,React js and Javascript

    $140 (Avg Bid)
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    MVP build for a functional front end of a social media/dating app. Requirements similar to Instagram/tinder. Swiping, API integration, building captcha with puzzle, profiles, creating events, chats, searching usernames, favorites.. etc

    $622 (Avg Bid)
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    Build a functionality 6 days left
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    need to do validations for input for time entries and do a put req with required parameters

    $154 (Avg Bid)
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    33 bids
    Need an App Developer 6 days left
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    i am looking for an App developer who can work in React Native for Hybrid App which will work in multiple platform. I need somebody from Chennai.

    $6 / hr (Avg Bid)
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    3 bids
    Build a buy and sell website 6 days left
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    I want to build a website with react (next js), redux , firebase and cloudinary. This website is to buy and sell vehicles. The project - Should have reusable components (input components, buttons, etc) - Website should be highly SEO friendly (when you use next its SEO friendly anyway) - Should have a strong search - Should be mobile responsive - Should have SSR - All the pages shou...

    $985 (Avg Bid)
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    I am going to make React website. This is first part of the site. Try to answer these questions. [login to view URL] do you need to build this component? [login to view URL] you build it with good design? Why? [login to view URL] you finish the last part of the site?

    $34 / hr (Avg Bid)
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    Hi I am converting template from bootstrap to react nativ. The only problem is navbar toggle is not working in [login to view URL] expert can do [login to view URL]'t bid if you don't understand problem.

    $7 / hr (Avg Bid)
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    SPA, React.js Expert 6 days left
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    We are going to develop website using react.js. We have base project and design and backend APIs are ready. Only full-time, experienced react.js developer is needed! Will consider serious bidders only! Thanks

    $522 (Avg Bid)
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    I want a Ruby on Rails devloper that can help me to develop chat application and deploy it on Digital Ocean server

    $20 / hr (Avg Bid)
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    11 bids

    I am looking for developer for my mom and popup business. - Full time work -every other days report -English: Conversational No neeed design I have already made mockup for my project.

    $2266 (Avg Bid)
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    91 bids

    I need a new web application for a client. We already have wireframes ready. Technology to be used : Spring boot and ReactJs

    $99 (Avg Bid)
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    3 bids
    Build website using React.js 6 days left
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    We have design and backend API. Need long term developer who has high skill in react.js, redux. Only full time, creative developer will be accepted. Let's start now!

    $527 (Avg Bid)
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    34 bids

    I need support with skills such as react native, react js, mobile app development, web development, unity

    $107 (Avg Bid)
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    Hi, I need to implement an EPG view in one of my project and have been looking onto this source code which provides the EPG implementation in "React": [login to view URL] I need similar component, but be written in React Native instead of React. If you are an experienced developer and have strong hold in React Native, it is just a day's job since all the things you need is already...

    $68 (Avg Bid)
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    React 1 front end fage 6 days left
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    connect backend to frontend react only 1 page backend exist

    $17 (Avg Bid)
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    Our company need one ReactJS expert. Redux and PostgreSQL is bonus.

    $31 / hr (Avg Bid)
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    45 bids
    XD file to html and css 6 days left
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    Hello I need someone to help me launch my website. I also looking for interns that is looking to grow in the company. React JS professionals and students are perfect.

    $150 (Avg Bid)
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    39 bids

    I have a Web app created in React/Node/Mysql that I want to convert to a React Native mobile application. I also want to add a Push Notification feature. The app has a calendar(react-big-calendar) that may need some functionality updates or New calendar altogether. I'm using stripe for payments so, the developer would need to link mobile payment with the web app.

    $579 (Avg Bid)
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    need react native expert. 6 days left
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    i would like sell React Native project(live). if you have live project using react native, please write "React Native" in your proposal.

    $151 (Avg Bid)
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    Jest, Enzyme, and Cypress unit/integration test writing for react hooks.

    $25 (Avg Bid)
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    SPA, React.js developer! 5 days left
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    We are going to develop website using react.js. We have base project and design and backend APIs are ready. Only full-time, experienced react.js developer is needed! Will consider serious bidders only! Thanks

    $677 (Avg Bid)
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    15 bids

    Jest, Enzyme, and Cypress unit/integration test writing for react hooks.

    $20 (Avg Bid)
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    1 bids
    React js website expert 5 days left
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    Need react.js expert who can build website from design and backend API integration. Design and API are ready, I will provide you. Only expert who can work full time, immediately is preferred. Thanks

    $530 (Avg Bid)
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    44 bids

    I need to redesign a CRM Site - I can run through the current site. There will be some changes.. we will brief the change and provide wireframe.. you have to design and develop the whole site. Back end is MSSQL.. You have to work in our visual studio online team and push codes regularly.

    $485 (Avg Bid)
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    29 bids

    I need a ReactJS developer to create some razor views for an existing .net Core 2.2 application. Skills needed: HTML5, ReactJS, C#, Visual Studio, Kendo UI, .Net Core, Bootstrap 4, CSS, SQL Server

    $520 (Avg Bid)
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    29 bids

    We are looking for an experienced React developer to help us design and develop the front end for our crowdfunding website. Requirements: Ideally familiar with Ant Design (antd) React framework, but those with knowledge of Material-UI and other popular React front end frameworks will also be considered Good knowledge of TypeScript 3.x+, especially async/await pattern and strong typing Experienc...

    $14 / hr (Avg Bid)
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    71 bids

    Jest, Enzyme, and Cypress unit/integration test writing for react hooks.

    $25 (Avg Bid)
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    4 bids

    [PAKISTAN ONLY FROM KARACHI] Need React Native developer for an Uber-like app Office job in KARACHI P.E.C.H.S 6 Experts only please Monthly Package

    $507 (Avg Bid)
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    18 bids
    React js website developer 5 days left
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    I need React.js expert who can build website from design and backend API integration. Design and API are ready, I will provide you. Only expert who can work full time, immediately is preferred. Thanks

    $502 (Avg Bid)
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    Hi drag and drop admin panel is a piece of cake by now for developers, it was a little tough work 15 -20 years back , now we need one which is mentioned in doc. we need forms which will generate json and control behaviour of ui and it must create a same inner page that exist there and custom inner page based on a design by drag and drop with restructuring reordering option which must be flexi...

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    BUG fix. while passing data to using post request we get a cross error. this has to be fixed and made sure correct data is sent. using axios

    $114 (Avg Bid)
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    I'm looking for developers who are experienced with React Important that they understand concepts related to local storage, sync when online, etc., I have a few applications where I will need long-term work.

    $11 / hr (Avg Bid)
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    24 bids

    Hi, I am looking for an experienced E-commerce Web Designer who has experience with UI/UX design. We have a backend application built using Magento 2.0 framework. We are looking for react js Front end designer to develop front-end application If you fit the above, please send over your portfolio and/or examples of you recent work along with your application.

    $399 (Avg Bid)
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    Hello. Expert Web Developers! I am going to make the large project with Node, Angular 2+ and React. I need to choose 2 developers. The awarded developers should be NDA sign. Please send me a portfolio with your projects made with Node, Angular 2+ and React? · Portfolio should include descriptions of projects, dates, your role, tasks. · Screenshots are important to make your portf...

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    React.js engineer 5 days left
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    I need to build one website using React.js. Design and backend API are ready. You need to implement UI and integrate API. Only professional React.js developer is needed! I need to start it immediately. Thanks

    $550 (Avg Bid)
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    37 bids

    Hi Sergey. This is Carlita. do you remember [login to view URL] We tested and reviewed your previous work - dice game, baccarat smart contract. Unfortunately, it doesn't work properly. Please come again and prove your works. Otherwise, I should file refund request. If you want to go ahead, then we can restart our contract here again. but must handle current issues. Regards

    $2397 (Avg Bid)
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    *IMPORTANT NOTE* If you want to be considered for this opportunity, please send the following in your initial message: 1. Github Repository showing you have experience with React 16.8 and the React Hooks API 2. Resume 3. Portfolio About the Role: We have an existing codebase using the best React & NodeJS practices. We need a developer to work with our team to complete both frontend and backe...

    $15 / hr (Avg Bid)
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    35 bids

    We're working on a rich web application and need a react developer to integrate already developed APIs with the frontend and make changes in the UI of the project as asked.

    $113 (Avg Bid)
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    12 bids

    The website will have same functionality with a different design . It will be fast , flexible , responsive for all devices . I need also a good score for Google speed minimum 80 .

    $7168 (Avg Bid)
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    123 bids

    This project is very simple. The app is simply a website that runs in react. You are supposed to make the app communication through web-socket to a background service. EDIT:You will not make the background service, but it should be possible to simulate it by sending raw json strings to the client. EDIT:You also agree the code will be MIT Licenced. APP DESIGN When the user launches the page it is s...

    $57 (Avg Bid)
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    I need to build one website using React.js. Design and backend API are ready. You need to implement UI and integrate API. Only professional React.js developer is needed! I need to start it immediately. Thanks

    $542 (Avg Bid)
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    35 bids
    React.js expert needed! 4 days left
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    Hi, I want only trustful, full-time, high skilled react.js developer. You need to implement UI and API integration. Only high skill expert should be welcome! Thanks

    $564 (Avg Bid)
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    39 bids

    We need someone reliable who can help us to continue develop our platform. If you do not have experience or are not serious and professional, do not waste my time. main skills: Node React Mongodb We will start with a simple task to assess if we can continue work together. if the outcome of the simple task is positive we can agree on a long term agreement.

    $471 (Avg Bid)
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    Hello We are looking for a responsible developer with experience from 4 years in web development for remote work in the agency. Duties: - Inform about progress; - Properly manage time; - Learn new web technologies; - Clearly perform tasks; Required knowledge: HTML5, CSS3, Javascript, PHP7, MySQL, jQuery, D3.js, React.js, [login to view URL], MongoDB. I will be glad to discuss all the details.

    $3768 (Avg Bid)
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    Need to develope Easydev template (ReactJS based). Main menu: deposite system, e-commerce, email, transaction history. Note: don't ask budget over I placed. Thank you.

    $199 (Avg Bid)
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    26 bids

    Hello freelancers. I am searching for people who can work with me for medium to long term. I would need you to show me your portfolio so I can show it to people interested in web pages and I will outsource this to you. Let's win-win. Please show me your works that vary from 200 USD to 600 USD Thanks

    $505 (Avg Bid)
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    I have a project which is written in React. This project is about 3 years old and very old fashion so need to upgrade into modern themes ans styles with redux workflow. As I know, redux saga is preferred. Only expert needed and have to update and maintenance project for long term. Please share with your proven work history so that I can know you are real expert in react-redux

    $19 / hr (Avg Bid)
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    Expert React.js developer 4 days left
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    I want only trustful, full-time, high skilled react.js developer. You need to implement UI and API integration. Only high skill expert should be welcome! Thanks

    $569 (Avg Bid)
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    I am finding react.js dev 4 days left
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    you know stub and sinon? how to mock with sinon for computed property? its basic question for react test I have unit test job, so try to know if you know it

    $12 / hr (Avg Bid)
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    We need female UI Proxy. Must be aware of React and Angular(the Only female candidate is preferred).

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