React.js is a JavaScript library developed and used by Facebook and Instagram to build user interfaces. It's an open-source library that allows developers to create reusable components easily and also provides faster rendering and improved performance. React.js offers a wide variety of features that make it a powerful tool for web and mobile developers, ranging from declarative components to A/B testing, styling, React Hooks, and more. As such, clients who are looking for a well-rounded web or mobile development team should consider hiring a React.js Developer to handle the development side of their project.

A React.js Developer can do a lot for a client, such as create complex user interfaces without having to rebuild the same code over and over as UI components are reused in multiple projects. Additionally, a React.js Developer can refactor code so that it is easier to understand and maintainable in the long run through clear naming conventions and separation of code logic when the application requirements change. Finally, they can optimize loading time even on slower networks by code splitting so that the most important content is loaded first while the rest is done later on.

Here's some projects that our expert React.js Developers have made real:

  • Building complex user interfaces with reusable components
  • Integrating mock APIs into a project
  • Hosting react apps on cloud platforms such as AWS EC2
  • Creating ecommerce websites
  • Refactoring code to increase maintainability
  • Adding authentication and authorization layers
  • Developing dynamic screens with UI designs from Figma
  • Form validation with Google authentication
  • Dynamically creating labels on pages using React Routes

With React.js, there is endless potential for creating amazing applications that are efficient, reliable and secure. Our highly trained React.js Developers specialize in completing and improving client projects quickly without sacrificing quality for cost or time, making them an invaluable resource for any business interested in staying competitive in their industry. If you're interested in taking advantage of our incredible pool of talent, feel free to post your own project and hire our skilled React.js Developer today on Freelancer.com!

From 240,533 reviews, clients rate our React.js Developers 4.86 out of 5 stars.
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    164 jobs found, pricing in USD

    I am looking for 3 Full Stack Developers who are strong in GraphQL, NextJS, TS, functional testing, and AWS amplify. You can apply if you can work from 11am to 7pm in GMT -3. Don't apply if you are an agency. I am only looking for individual developers.

    $7 / hr (Avg Bid)
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    Let's call this a web application for Project X. The web app will need to support user account login, a user dashboard to show various information from a back-end database and integration with social media channels for content retrieval and storage back into the database. The web app itself will be a proof of concept / minimum viable product for project X, but once approved it will be handed over to a team to develop further. Hence, the architecture should be scalable and code needs to be clean and well documented.

    $7 / hr (Avg Bid)
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    React native app developer 6 days left
    VERIFIED

    I have a React native app and require some works and changes in it. Kindly those contact who has good experience in React native apps. Looking forward to hear from you. Cheers.

    $22 - $185
    Sealed
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    The feature would involve creating a new smart contract or modifying the existing one to enable the storage of shipping details for orders. The developer would need to integrate this smart contract with the React app to store and retrieve shipping details. Additionally, they would also need to ensure that vendors have access to the shipping details of their orders. As the React app is built to run on IPFS and Ethereum blockchain, the developer would need to have a strong understanding of these technologies. They should also have experience in building smart contracts and integrating them with React apps. You need to fix it via anydesk on my laptop

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    We are a startup who want a website. I am attaching the figma design.

    $130 (Avg Bid)
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    Have you good experience with React Navigation? The React Native App is 90% done. 10 navigations need to be fixed. Hard to give detailed descriptions here. I will tell you navigate from screen A to screen B. You have to work remotely on my computer via TeamViewer. No other options.

    $26 (Avg Bid)
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    I am looking for 3 Full Stack Developers who are strong in GraphQL, NextJS, TS, functional testing, and AWS amplify. You can apply if you can work from 11am to 7pm in GMT -3. Don't apply if you are an agency. I am only looking for individual developers.

    $8 / hr (Avg Bid)
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    Own project -- 2 6 days left
    VERIFIED

    Its a react native project .., simple UI & API’s etc

    $24 (Avg Bid)
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    Need a React developer 6 days left
    VERIFIED

    I need a React developer which can help me in developing an App. You don't need to develop the complete App, most of the work already completed you will work on some pages only. You also need to be an expert in API integration and Redux for complete working of UI. Need someone who can work in day shift instead of night

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    - Full time contract position (remote) - Developer must be located in India. - 6 months plus duration - No moonlighting or shadowing, only developers who are currently not working will be considered. - 8+ years experience in MERN full stack development, junior and mid level developers will not be considered - Must have lead a team of MERN developers - Deep knowledge of serverless architecture - Architecture and DB design experience - 8 hours of total commitment, Monday-Friday - Out of total 8 hours work, 5 hours will be 7:30PM - 12:30PM, IST - Remaining 3 hours during normal IST business hours. - Must be ready for technical interviews. - Budget: 100K to 150K per month - Only individual developers, no companies or teams

    $1696 (Avg Bid)
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    React JS Server on Amazon AWS 6 days left
    VERIFIED

    React JS Server on Amazon AWS reading from db and showing the data on a dashboard

    $35 (Avg Bid)
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    I'm looking for an experienced developer to convert a Figma landingpage design into reactive code. The coding requirements are specifically for React, so if you have expertise in that area please apply. I also need the developer to add additional features to the website, so it should be an all-inclusive project. This also means that no existing React codebase is available, as all coding will need to be done from scratch. If you believe you are the right fit for this project, please apply now!

    $192 (Avg Bid)
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    Project: React + ASP.NET Core The app first call a 3rd party API, get JSON objects, then call backend rest API to save the data to database. The two APIs are correct. Right now, the error states that: Access to XMLHttpRequest at '' from origin 'http://localhost:19006' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. The goal of this project is to fix CORS related errors. When you can log 3rd party's data on console, you are done. You have to work remotely on my computer via TeamViewer. No other options.

    $28 (Avg Bid)
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    I am looking for a React developer to work on a chatgpt project using Openai. This will be a custom-built AI app and I do need end-user testing conducted. I have a rough wireframe for the project, so I am looking for someone with experience in the React framework and Openai to get it off the ground. The developer should have experience building applications from the ground up and have a keen eye for detail. Furthermore, comprehensive testing of the project is necessary to ensure a successful launch. If you feel confident in your abilities, please reach out for more details about the project.

    $19 / hr (Avg Bid)
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    Tourvia is looking for react frontend developers to help launch an exciting application in the real estate space. We have an extremely passionate group of creatives, developers, product gurus and business brains that are hungry to disrupt real estate. We are seeking likeminded indvididuals to help get this project launched! Skillsets are needed in reactjs, ionic framework and tailwindcss on the frontend.

    $19 / hr (Avg Bid)
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    This is a React/GraphQL project that involves the use of the React-Grid-Layout library. The project is a custom dashboard that allows you to add/delete/resize/drag/save widgets on the dashboard. 80% of the functionality is done. There are still a few issues that need to be fixed (will list them below). Please note that this is heavily custom hook based. I need someone who can start working as soon as possible. NOTE: I attached the files that need to be worked on but some files are being imported from a private package and are restricted due to the sensitivity of the information. I am willing to get on a video call to screen share as well to provide any extra information. You will need to create some of your own mock data. Tasks: 1. Fix save functionality 2. Fix Edit Mode to only allow...

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    I need an LMS for an online academy and I am looking for something that has already been created so that I can make the necessary functional modifications to the software. Please only apply those who have an LMS development already.

    $563 (Avg Bid)
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    I am looking for an expert in typescript/react/+ supabase/portgresql/api to help me resolve bugs in a code. The bug resolution requires testing and debugging of the code at an medium to advanced level. If you have experience with these technologies and you are confident that you can help me fix my issues then please get in touch. I will be sure to provide detailed instructions on the nature of the bugs and what my expectations are. Thank you for your time and I look forward to hearing from you soon. Here is the url () Please run the code and let me know if you are able to fix these, and how fast.

    $50 (Avg Bid)
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    We are looking for an experienced web developer for a short-term project aiming to start as soon as possible. You will work on an interactive browser App that allows users to explore data on different consumers' search engine usage. The App should allow its users to load a simple data file in a pre-defined format and provide different options to explore and visualize it interactively. Broadly, the envisioned App should provide users with functionalities such as - apply various filters to the given data - make selections - perform simple calculations (counts, means, standard deviations) based on user selections - visualize results in simple graphics (e.g., bar charts, scatterplots) - use graphics to refine selections and zoom in on the data that used to calculate them - create output ...

    $21 / hr (Avg Bid)
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    We are seeking a freelance developer with expertise in NestJS to deploy our backend code to a server. The required endpoints must be hosted for integration into the frontend of our project. If you have a solid understanding of NestJS and are interested in a challenging project, we would love to hear from you!

    $15 / hr (Avg Bid)
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    i want to make an e-commerce site with customizable products

    $96 (Avg Bid)
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    I have an e-commerce webiste in MERN. Where frontend and backend code is not segregated and an older version of node js is used. I need to get both codes of frontend and backend in 2 different repositories and node version 17 should be supported instead of 14. 1. Segrigation of frontend and backend. 2. Upgrading node version from 14 to 17. 3. Fix compatibility issues. (Should run successfully)

    $105 (Avg Bid)
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    I need a freelancer to help finish or fix a website for my client's existing business. I'm unsure of what changes need to be made, so I'm looking for someone with experience who can make the necessary fixes. It's important that the the project be completed in a timely manner and with a level of quality. Any recommendations of additional changes or features that could be added would be welcomed. I'm aware that some development tasks take more than 5 days, so I look forward to talking with the freelancer to determine the best timeline for completion. We are using : Pickbazar Laravel - React, Next, REST & GraphQL Ecommerce With Multivendor PickBazar - React Ecommerce Template with React Hooks, Next JS, GraphQL & REST API we want to fix some errors and chang...

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    Our company has been active in the field of solar photovoltaics connected to the network for 15 years. We want to use Keycloak as an SSO for all our applications: Prestashop 8 and some other applications (in Laravel and React)… We want our users to be able to log in everywhere with the same credentials. Also, we need to be able to manage access to our different applications: - Our customers will only use the prestashop. - some people will use prestashop and one of our laravel website - Some people will need access to one application but not the others… On keycloak we should be able to have different groups and roles. Those will determine which applications you can access (and within the applications, what you can do) skills required : keycloak knowledge wo...

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    Hi Romik. As we discussed Please finish conveting BSC dex to arbitrum dex. Good luck

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    Need a MERN stack developer to build a job portal. Main Functionalities: login/signup -> employer and employee Employee: 1)registration & profile creation 2)taking mcq and coding assessment which has proctoring 3)getting recommended jobs based on profile matching(preferences & skill assessment passed) Employer: 1)profile creation 2)job posting getting recommended candidate from talent pool(employee who passed assessments) based on job details Administrator panel: To manage hiring process

    $1108 (Avg Bid)
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    I want to build a webpage for users to edit and design an image with provided images. let's say in this example, here will be 4 shapes, like shown in attachment. The image for each shape will be provided by us. I need code written in ReactJS to do the following: - Allow users to drag elements from the library on the right onto the area on the left - When dragged on the left, the elements must clip to the bottom line like shown above - The elements can be dragged horizontally - When an element is dragged, push the other elements to make space for the element that’s being dragged - Elements should touch each other, leaving no space in between and no overlapping

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    There will be 3 questions In that 2 will be javascript (Node.js) and one is react api..there will be an existing code..there will be whole components and cs you have to change the code as per the requirement

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    Hi there, I am looking for a Chrome Extension developer for the Life-Long. This one is a test project (of course will pay you for this as well after discussion and clearing all details) if you did this project successfully then I will add you to my team and give you all my projects ready to start. Details for this project will be shared with the winning bidder. New freelancers are also welcome to bid. Start your project with the word "Allrounder" to be considered. Without this word, all bids will be ignored.

    $84 (Avg Bid)
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    I'm looking for a skilled developer to create a readymade blogging site with an admin panel in ReactJs version 16.x. Customizations will be required, but only partially. The hosting should be done on a VPS for optimal performance. The successful candidate should have good experience with ReactJs programming, as well as setting up servers and databases in Mongo/SQL. Furthermore, the candidate should have strong problem solving skills and be able to troubleshoot any issues that may arise during the development process. I'm open to creative solutions and understand that this project requires a certain level of expertise. If you think you have the perfect skillset and promise to deliver outstanding results, don't hesitate to apply.

    $347 (Avg Bid)
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    I have a project that is using Qwik, Tailwindcss and DaisyUI. I created a responsive navbar with burger that knows to appear on certain screen size. When I change to responsive view on web and click the burger, the dropdown opens. But when I try this on my Iphone (real) the dropdown is not opens.

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    Necesitamos que en nuestra app hecha en ReactJS permita cobros con tarjeta de credito. En nuestra pantalla de checkout permitimos actualmente cobro con Transbank OneClick Mall, y queremos implementar MercadoPago. (adjunto pantalla de checkout). Como Backend usamos Firebase Functions (NodeJS) para llamadas de API. Como base de datos (solo en backend) usamos Firestore. Necesitamos: - Componente de React (o puede ser un Hook) que permita llamar a MercadoPago. Aceptamos sugerencias de algo más práctico que se pueda integrar con nuestro código. - Crear una función de Firebase Functions (nodeJS) para los endpoints del proceso de checkout. Se necesita crear las funciones, pero todo el funcionamiento del checkout debe estar encapsulado en una Clase, ya que será...

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    Build a sport simulation app 5 days left
    VERIFIED

    I want to build a sport simulation web app. That must be good for mobile as well. Please write similar projects you have done before.

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    I am building an website using react.JS and I can't find the reason of an error.

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    Hello! I 'm going to open my website. Who can help me? You must buildthe website with react. please contact me.

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    Typescript - React.js 5 days left
    VERIFIED

    I am looking to add a developer or two to work with another couple of developers on an Excel Add-in we have built. Your role will to be add additional UI elements to the existing web app - another group does a lot of the code that actually interfaces with Excel

    $12 / hr (Avg Bid)
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    React.js expert with gatsby 5 days left
    VERIFIED

    We are looking for a skilled ReactJS developer who is also proficient with Gatsby to join our team. As a ReactJS Expert with Gatsby, you will be responsible for developing and implementing high-quality, scalable web applications that meet our clients' needs. Key Responsibilities: Develop responsive, user-friendly web applications using ReactJS and Gatsby. Collaborate with other developers and designers to ensure the project meets the required specifications. Write clean, efficient, and maintainable code that follows coding standards and best practices. Integrate RESTful APIs and other third-party services into web applications. Optimize web applications for maximum speed and scalability. Identify and troubleshoot issues and bugs in web applications. Participate in code reviews and e...

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    I want to change the advertising system for this script, where the advertising is inserted individually in each publication

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    I'm looking for a full-stack trainer to teach web development for a group of 1-3 participants. I need the trainer to create their own materials and resources for the training. The topics I want to cover include HTML, CSS, and JavaScript along with any other technologies related to web development which the trainer might find relevant. The skills and knowledge of the participants must be brought up to a level of proficiency and competence. The trainer needs to provide excellent verbal and written English communications skills as they interact with and teach the participants. Skills required: Databasing: in-depth knowledge of classic SQL/RDBMS combined with in-depth knowledge of NoSQL, map-reduce, and graph databases, as well as the ability to bridge those worlds  API: Ability...

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    Enhance role and permission issue for react and node

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    Hi, I'm looking for someone to help me with a React.Js and Figma to React.Js project. Ideally, I'm looking for someone with a beginner level of experience in these areas; however, any additional web development skills are not necessary. Furthermore, this project does require help within a fixed timeframe or deadline. If you think you have the necessary skill set, please reach out and provide your portfolio. I'm looking forward to working with you!

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    I am looking for a full stack developer skilled in both React JS and Golang to join my team for a long term contract. The work can be done either on-site or remotely and I'm looking for someone with an intermediate skill level. This is a monthly contracted position, which will give you the opportunity to really make a difference to my business. React JS: Skillset: HTML5 CSS frameworks Javascript React Js Chart library such as Amcharts, Highcharts Experience handling Real time data REST and Websocket API Ability to understand others code Golang: API Development for REST and Websocket Golang Advanced level Cloud Deployment

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    I am looking for a react.js professional to provide development assistance on an urgent project(job support). Specifically, I need help debugging, running code reviews and other technical code related tasks. The project has several specific tasks related to react.js that need to be done within 1-3 hours. In order to succeed in this job support, strong knowledge of react.js is a must. The right candidate should have excellent problem-solving skills as well as be able to explain technical concepts at a high level. If you think you’re qualified for this job support, please apply!

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    I want to create reactjs page portfolio, this is very simple page.

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    Browser Updates expert 4 days left
    VERIFIED

    Need a person who is good with browser updated and update our landing page according to new updates from browsers.

    $102 (Avg Bid)
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    Similar to Astrotalk 4 days left
    VERIFIED

    I'm looking for a talented developer to help create a new professional consultancy platform similar to Astrotalk. This platform will be developed using React.js and should adhere to a timeline of 1-3 months. The successful applicant for this project should have an extensive experience in React.js, as well as HTML and CSS coding. They should also have project management experience and excellent technical problem-solving skills. Ideally, the developer should have a solid understanding of the project goals and have their own ideas for how to make the project successful. I'm looking for someone who is enthusiastic, creative and able to take initiative to help create a successful platform. The successful applicant should feel comfortable working independently and with minimal supe...

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    Broker Free 4 days left
    VERIFIED

    I'm in need of a web developer to design an app for a broker-free platform. This platform should be able to support user accounts, as well as handle payment transactions. The app needs to be designed for web integration and must be intuitive, secure, and easy to use. The web developer will be responsible for setting up the web infrastructure, design, and backend architecture so that the app can be hosted online and used by its users. This project will require knowledge and experience in web development, payment gateways, user authentication, and UI/UX design. The successful candidate should possess a deep understanding of best practices in web development, particularly with regards to security. Attention to detail, excellent communication skills, and the ability to quickly solve probl...

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    E-commerce website 4 days left
    VERIFIED

    Build new website fully customization.

    $2167 (Avg Bid)
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    Build an mvp website that can be used as a profile page for social media users with links to their other social media and pages, and also allows them to sell digital products/services and make bookings from the page.

    $852 (Avg Bid)
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    As a client, I am looking to create a website which features real-time stock price details and some other features. I want to use React as the platform to build upon. I also need the website to include payment transactions and chatbot/customer support features. And some more as well. If you have experience developing with React, building websites with payment transactions and chatbot/customer support features, then I invite you to submit a proposal - I am excited to get started on this project. Note its a big project so if you have skills only then bid this project

    $423 (Avg Bid)
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    30 bids

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