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.

De 265230 comentarios, los clientes califican nuestro React.js Developers 4.84 de un total de 5 estrellas.
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    198 trabajados encontrados, precios en USD

    deadline is on october friday 21st The stack may be. Its ReactJS + Python (FastApi) + PostgreSQL Proyecto para atender trabajadores de la construcción requiere realizar fix funcionales y mejoras a flujos ya existentes.

    $1169 (Avg Bid)
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    55 ofertas

    Desarrollo un servicio de geolocalización y envío de coordenadas y otros datos en tiempo real a firebase. Estos Datos deben continuar enviandose si la aplicación está cerrada, en background o con la pantalla apagada. Solo la implementación del servicio. El resto de la aplicacion se irá realizando más adelante.

    $180 (Avg Bid)
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    21 ofertas

    Tenemos un ecommerce en producción y necesitamos mejorar los tiempos de carga de manera sustancial. El objetivo es mejorar los tiempos de carga más de 50%, actualmente los tiempos de carga son superiores a 12 segundos por lo que hay mucho margen de mejora. Respecto a los temas de diseño, necesitamos: 1. Hacer ajustes en etiquetas H1 y estructura on page para página de categorías. 2. Agregar posibilidad de usar hipervínculos en página de categorías/marcas. 3. Que en páginas con parámetros de url del tipo ?page=2, ?page=3, hacia adelante.. se ocupe el meta tag <meta name="robots" content="NOINDEX,FOLLOW"/> Para desarrollar estas mejoras deberá habilitar un ambiente de desarrollo o test...

    $464 (Avg Bid)
    Acuerdo de Confidencialidad
    $464 Oferta promedio
    14 ofertas

    I am looking for react expert who can finish my site. It's finished 70%, but my previous developer can't continue to work since his personal things. So I need to someone who have so rich experience with react. Ideal candidate must have react, react redux, typescript, TailwindCSS and he should be able to work 30+ hours/week. Please attach your previous site links on your proposal. Looking forward to hearing from you!

    $20 / hr (Avg Bid)
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    106 ofertas
    Build me a website -- 2 6 días left
    VERIFICADO

    Note: Copy paste replies will be directly ignored. Need a website exactly like and Only experienced companies bid on this project.

    $4478 (Avg Bid)
    $4478 Oferta promedio
    26 ofertas

    Hi, Looking for a web developer freelancer with profile back-end, full stack or front-end to collaborate on web projects development. Front : React, Angular, Vue Back : PHP, Symfony, Angular, Python Please share some examples of your project.

    $7 / hr (Avg Bid)
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    32 ofertas
    MERN Stack 6 días left
    VERIFICADO

    MERN Stack, create API for user management. Admin console, 3rd party API integration, SSO. Create endpoints..etc

    $411 (Avg Bid)
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    25 ofertas

    We wanted to build a System that Recognizes Whether the person is a Criminal Or not to Secure the data we will implement this database in the Blockchain so that database is not centralized. We will also make a frontend to where User can interact easily and can check whether the Person is a Criminal or not

    $142 (Avg Bid)
    $142 Oferta promedio
    3 ofertas

    hello, We have a live laravel project (with react) PHP 8, it is a store platform, which allows the user to create their online store, once the user registers he will get a store with a temporary link which is: everything works well under our subdomain, but we want to allow the user to use their custom domain so from this => to this => preferably do it using CNAME pointing, and not by IP (A record) since the IP can change anytime. * we also want to automatically install SSL certificates with the user's custom domain. * user can add more than 1 custom domain. the same content will appear on the custom domain. I am looking for a freelancer to fix these issues and add this feature in order to make it works, the app it's already on the VPS (apache) Please bid with th...

    $173 (Avg Bid)
    $173 Oferta promedio
    34 ofertas
    ReactJS developer 6 días left
    VERIFICADO

    We need a REACT JS developer with great experience who can develop our database/portal further. If you also have equal good experience with WordPress or anyone from your team and understand English perfectly, we want you to work with us by the hour.

    $12 / hr (Avg Bid)
    $12 / hr Oferta promedio
    133 ofertas
    node project... 6 días left
    VERIFICADO

    I have a React.js App that will use Node.js for the backend so users can [1] register/login with Google using Firebase Authentication, [2] create API Points from CSV Files, make requests, and filter points, and [3] upgrade their account through their Stripe customer portal. WHAT'S YOUR BUDGET & DELIVERY DATE?

    $118 (Avg Bid)
    $118 Oferta promedio
    24 ofertas

    Looking for a Web3 & React JS developer. I wish to track transaction between two provided addresses to confirm full payment is made. Not sure what coins could be supported, you can let me know. I am looking to have the data updated on a website payment type page, it will look like this - Let me know if you can do it and any other information needed.

    $170 (Avg Bid)
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    29 ofertas

    Migrate an existing small project from react.js to over teams viewer.

    $17 (Avg Bid)
    $17 Oferta promedio
    8 ofertas

    Hello, I want a website similar to Amazon. But that the payment is made through cryptocurrencies and other functions that I will comment on privately. I want the crypto to go to the website wallet first and then when the buyer accepts the service as received, the money will automatically go to the seller's wallet. There are no ethereum contracts as we don't want to be saddled with their huge gas fees. Only experienced people, no wordpress, don't waste my time. If the project is carried out well, there is a high possibility that they will be hired again for a much higher salary for a long period of time. Please put this word at the beginning of your message to ensure you have completely read the project description: "Wallipal"

    $1227 (Avg Bid)
    $1227 Oferta promedio
    44 ofertas
    .NET 6 web api + React 6 días left
    VERIFICADO

    I need help developing asp.net core web app

    $8 / hr (Avg Bid)
    $8 / hr Oferta promedio
    48 ofertas

    Hi, developers. I am looking for a React Native expert who can be able to start right now. And if you are selected, you must finish this project in 10 hours. This is very urgent. Our goal is to implement signup/signin in our project. I think it will take only 1~2 hours for the expert. Please apply with your previous projects. Sincerely.

    $71 (Avg Bid)
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    21 ofertas

    I'm looking to build a functional prototype for software that will help manage patient medical problems. Really my first goal is to build the UI for the main page and make it a "clickable prototype". If/when that's done I will look for developer(s) to assume the larger project which involves the software and CRM. The main page will consist of information about the patient (in what's called the "patient banner" or "patient ribbon". (Actually the "charts" toolbar or banner is above it which shows open charts) Below that will be the "note banner" which displays information about the note to be built Lastly, there's the problem list toolbar which does the following: Problem list toolbar (the new concept as discusse...

    $526 (Avg Bid)
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    75 ofertas
    node project.., 6 días left
    VERIFICADO

    I have a React.js App that will use Node.js for the backend so users can [1] register/login with Google using Firebase Authentication, [2] create API Points from CSV Files, make requests, and filter points, and [3] upgrade their account through their Stripe customer portal. WHAT'S YOUR BUDGET & DELIVERY DATE?

    $220 (Avg Bid)
    $220 Oferta promedio
    25 ofertas

    Hi there! We’re a cybersecurity startup in Web3 (Nefture) and we’re building a product which protects blockchain users. Regarding the development of the product, we need a frontend developer which could join the team, in Paris or in remote. We’re looking for a senior developer, who has more than five years in React.JS and Next.JS. Thank you in advance.

    $3960 (Avg Bid)
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    54 ofertas

    We have an existing React Redux web app and looking for a senior talent to take over work on the app. The app consist of a backend which fetch statistics from a remote API, stores it in a database and prepares it using simple calculations (sum). This is then presented in a password protected web app slider. Not looking for juniors, the whole point is to improve the code base from junior. The kind of work needed: - 1-2 known smaller urgent issues - 2-4 known smaller non-urgent issues - Production of new functionality Workflow example: - Initial investigation, for example 2 hours - Estimation after investigation: 12 hours - Fixed price: 12 hours - Repeat for next task Regards

    $22 / hr (Avg Bid)
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    40 ofertas

    its small 5 level game need help with backend

    $150 (Avg Bid)
    $150 Oferta promedio
    19 ofertas
    node project.. 6 días left
    VERIFICADO

    I have a React.js App that will use Node.js for the backend so users can [1] register/login with Google using Firebase Authentication, [2] create API Points from CSV Files, make requests, and filter points, and [3] upgrade their account through their Stripe customer portal. WHAT'S YOUR BUDGET & DELIVERY DATE?

    $257 (Avg Bid)
    $257 Oferta promedio
    20 ofertas
    Pickbazar script 5 días left
    VERIFICADO

    1- images are not able to upload and fix all console errors 2- integrate msg91 api for otp Documentation :

    $12 (Avg Bid)
    $12 Oferta promedio
    4 ofertas

    Mandatory Skills: React.Js, NodeJs, , Github, UI/UX Optional Skills: NextJs, Tailwind, AWS, CI/CD Semi-fulltime # Responsibilities Work on a category-creating, possibly disruptive fintech product in early stages Design and develop highly scalable and reliable systems end-to-end Architect the backend and infrastructure for scale Deploying and managing production servers and services in AWS # Requirements Past project experience is mandatory Good knowledge of React and Node.js Good understanding of MySQL Database Experience working on AWS or other cloud services is an Experience with open source collaboration Good knowledge of options trading is mandatory Ownership mindset – You shouldn’t require monitoring and you should be able to leverage the freedom given to you ...

    $9 / hr (Avg Bid)
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    61 ofertas

    Deadline: 1-3 months We are looking for an AWS Application architect to help design and build a shopping cart and a delivery system for a company in CBD Industry. The application will interact with Payment System. Must have expertise in : - AWS, - API Integration, Rest Full API, and full stack development. - Expertise in multiple Shopping Cart solutions. - GPS Based Delivery system a must - Mobile development : React, Ios, and Android - Be part of requirement gathering - Create architecture diagram, process flows for the application - Experience with NextJS a + - Experience with OnFleet and Blaze a big plus. The first phase of this project is to design the architecture of all the AWS services that will be needed to power these applications.

    $1289 (Avg Bid)
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    45 ofertas
    need ionic and react developer 5 días left
    VERIFICADO

    Looking for the project help in ionic and react

    $126 (Avg Bid)
    $126 Oferta promedio
    10 ofertas

    Looking for a react js developer for job support. 3-4 hours of work daily. 5 days a week. Payment will be on monthly basis. Indian developers are required. Budget (30-32k monthly) Work will be in USA timings.

    $313 (Avg Bid)
    $313 Oferta promedio
    17 ofertas

    I am looking for an Indian Full Stack Java Developer having minimum of 6+ years experience in Java, React JS, Spring Boot, Microservices, Rest API. Long terms Job Support for 2-3 hrs daily as per US time zone required. Only the Resources to Contact not the Consulting Companies.

    $628 (Avg Bid)
    $628 Oferta promedio
    7 ofertas

    I need a Full Stack Java Job Support for my ongoing project. The resource must have atleast 6-7 years experience in Java, React JS, Microservices, Spring Boot, Rest APT, My SQL. This will be a long term project and need daily support of 2-3 hrs as per the US time zone. I can be reached via whatsapp @909-401-3671

    $523 (Avg Bid)
    $523 Oferta promedio
    13 ofertas

    We require an experienced frontend developer who has a good sense of aesthetics related to UI design. The current UI requires modifications and the landing/Login page can be made to look more professional. We also need some level of optimisation so that it becomes more user friendly.

    $99 (Avg Bid)
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    10 ofertas

    My Shopify project is built based on Laravel, PHP framework. I need to change this project into React framework like Next.js. To build this project, I require high skilled developer who is familiar with React, Next and Laravel. To avoid automatic bid, I want you to type the capital of Russia at the top of your proposal.

    $1092 (Avg Bid)
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    57 ofertas

    I am looking for an experience nextjs developer to help me complete an ongoing website. The person should be professional and willing to give it's time to this project. Some of the things you've to consider: * I need a professional who can understand his and my time. * The person should know how to write quality code, as one of my developer will check each PR and raise his concerns. * The person should know Git very well. * There will be design provided through Figma for each page and the UI should 100% match for mobile, tablet & desktop. * There will be around 40 page we need to develop * Each page will consume API through Strapi. Strapi part will be taken care by other developer. But you need to use the API in your nextjs template. * Slack will be used for communicatio...

    $310 (Avg Bid)
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    8 ofertas

    Hi All, I am looking for individual freelancer with having great experience with MERN/Blockchain. ONLY INDIVIDUAL FREELANCER T & C - 1. Monthly basis 2. 40 hours a week 3. Long term

    $778 (Avg Bid)
    $778 Oferta promedio
    19 ofertas

    Hello, honest turkey. I need your help for my project.

    $179 (Avg Bid)
    $179 Oferta promedio
    11 ofertas

    Do not submit copied and pasted profiles!!!!! This website is for sharing torrent files Must be configured with react and node.js mysql It's a seo friendly configuration Please provide a reasonable price due to the high exchange rate.

    $204 (Avg Bid)
    $204 Oferta promedio
    32 ofertas

    I have a small/medium size saas site with a very intricate and advanced user interface. After being live for almost 3 years, we are looking to build the second iteration of the site using mostly the same tech, but changing to Tailwind CSS.

    $21 / hr (Avg Bid)
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    build web site 6 días left

    Do not submit copied and pasted profiles!!!!! This website is for sharing torrent files Must be configured with react and node.js mysql It's a seo friendly configuration Please provide a reasonable price due to the high exchange rate.

    $502 (Avg Bid)
    $502 Oferta promedio
    72 ofertas

    We need a website developer like india filing. If you have experience like this website then kindly bid. If you have a ready made script then much better.

    $347 (Avg Bid)
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    23 ofertas
    Tech Stack Education 6 días left
    VERIFICADO

    Help explain Tech Stack for Saas. Django, React, Figma, AWS Architecture

    $12 / hr (Avg Bid)
    $12 / hr Oferta promedio
    30 ofertas
    Need to fix the UI 6 días left
    VERIFICADO

    You have to develop the responsive form components in React Js Bootstrap. I'm attaching the issues in a ppt. I should look same like attached mockup() Below is the actual project requirement which is incomplete. For the password input field, this (The password must contain a Special character, Upper Case, Numeric, and 8 digits) are the validations. If there is any validation missing then the related validation words must highlight in #FF5630 color and if characters meet validation parameters then those words have to highlight in #38CB89 color. If confirm password does not match then show the error message below to it like First Name in the mockup. On-click the eye icon it has to show the password and hide vice-versa. Add animation effect on-click the eye icon. For pin, it has to...

    $13 (Avg Bid)
    $13 Oferta promedio
    10 ofertas

    Please must write the experience you have forked bridge and explorer with website links. I'll never chat anybody who can't share your prove of this experience. I'm looking for blockchain developer who can bridge and explorer quickly as well. Please share the experience of bridge and explorer fork. Don't apply if you don't have experience.

    $16 / hr (Avg Bid)
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    56 ofertas

    Front end developer with good UI skills required for ongoing project

    $118 (Avg Bid)
    $118 Oferta promedio
    31 ofertas
    React Developer For Upgrade Design 6 días left
    VERIFICADO

    hello, we are looking for react developer, who can upgrade current design, we will provide figma file, you have to upgrade design accordingly thanks

    $153 - $460
    Sellado Acuerdo de Confidencialidad
    $153 - $460
    26 ofertas

    Hello we need payment gateway integration with our website. Website is built using React JS We want to integrate with Google pay and UPI and then add others The backend is Django

    $39 (Avg Bid)
    $39 Oferta promedio
    13 ofertas
    React Node Charts fix, Urgent -- 7 6 días left
    VERIFICADO

    Need Skilful Professional freelancer FrontEnd : React BackEnd : Node DB : MSSQL Task is simple only 1 page, Project code already with React/Node js with MSSQL DB, but currently showing wrong or no value need to fix it with actual data values from DB need to check existing queries, stored procedures, js files accordingly and then fix the issue. If you interest, please contact. * * super urgent need, deadline within 15 hours (max) and Currency only SGD. * * 1) you must have good internet connection 2) you will be online until most of the time here (Freelancer) need to keep in touch and must response immediately 3) your pc must have MSSQL already Payment only SGD. (If you can't, please don't waste our time, Thanks)

    $131 (Avg Bid)
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    53 ofertas
    React Developer For Game Project 6 días left
    VERIFICADO

    Hello, We are looking for a friend to develop interfaces with React for our game system project. The system, for which background services have been written, will be dressed as a front interface and a visual interface with effects. The interface is a ready-made dashboard design and it will be dressed in harmony with the rear services. There are 2 ready game systems. According to the work performance, the preparation of other games will be given to the friend. The games are simple games like XoX where only visual effects will suffice.

    $158 (Avg Bid)
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    18 ofertas

    We search for a developer for our software to continue developing features and maintain/fix codebase. Software is an advanced tool to automate any kind of web flows and scraping any webpage at scale. More details will be discussed in a call.

    $2192 (Avg Bid)
    Acuerdo de Confidencialidad
    $2192 Oferta promedio
    88 ofertas
    ReactJS + NodeJS Project Updates 5 días left
    VERIFICADO

    ReactJS + NodeJS Quiz app. Database: PostgreSQL. Need to maintain and update few features in existing project. Looking for developer who can start work immediately and on hourly basis or task basis. Need to start immediately.

    $102 (Avg Bid)
    $102 Oferta promedio
    30 ofertas
    React front-end for video app 5 días left
    VERIFICADO

    This is a small project for a basic React front-end, we have an existing backend using Strapi, it has a restful API. We do not require any back-end development work. No design is needed, only basic templating using Material UI. Well structured code/components is crucial. Jira board with work tickets as well as video based briefs for each ticket are available. Here is an outline spec: Here is wireframe: Here is the Postman collection: Stack: React Axois Redux Material UI This is an on-going project.

    $29 / hr (Avg Bid)
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    Flexible Working hours 8 Hours daily Require Fixed Monthly Payments ( Kindly bid your monthly cost) Mandatory  5+ years of experience in .NET development using C#  3+ years of experience working with REST API using .NET Core  3+ years using ORM frameworks like Entity Framework Core/ Dapper  2+ years modeling relational data  2+ years of experience securing API&#39;s / REST endpoints  2+years of CI/CD pipeline development experience is an advantage  Should be able to perform Unit Testing of REST API using NUnit or similar skillset.  Strong knowledge of MS SQL Server (mainly Stored Procedures, User defined functions, Cursors, XML and Triggers)  Strong knowledge of API Testing with Postman/ JMeter/ Katalon Studio  Experience with Object Oriented Programming, Digital Certificat...

    $764 (Avg Bid)
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