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 265371 comentarios, los clientes califican nuestro React.js Developers 4.84 de un total de 5 estrellas.
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    193 trabajados encontrados, precios en EUR

    modificar la opcion de color de los iconos segun estado (verde-rojo( de manera que los iconos de vehiculos que sean cargados se mantengan con los colores originales, se requieren son los archivos a reemplazar solamente

    €23 (Avg Bid)
    €23 Oferta promedio
    1 ofertas
    Experto en React 5 días left
    VERIFICADO

    Busco freelancer que sepa ayudarme con mi proyecto React. Fundamental hablar español, escucho propuestas, gracias.

    €158 (Avg Bid)
    €158 Oferta promedio
    23 ofertas

    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.

    €1195 (Avg Bid)
    €1195 Oferta promedio
    58 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.

    €184 (Avg Bid)
    €184 Oferta promedio
    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...

    €510 (Avg Bid)
    Acuerdo de Confidencialidad
    €510 Oferta promedio
    15 ofertas

    modify or disable the color option of the icons according to status (green-red) (so that the icons of vehicles that are loaded are kept with the original colors, only the files to be replaced are required

    €133 (Avg Bid)
    €133 Oferta promedio
    9 ofertas

    Reactjs developer -- Need to fecth restAPI data and fill charts parmeters values.

    €15 (Avg Bid)
    €15 Oferta promedio
    7 ofertas

    We are looking for a company to take on our ReactJS & React Native/Expo Development projects. Please ensure you have ample resources to be able to complete our tasks on time and on budget

    €13 / hr (Avg Bid)
    €13 / hr Oferta promedio
    89 ofertas

    To download excel temple in front end.

    €11 / hr (Avg Bid)
    €11 / hr Oferta promedio
    8 ofertas

    I want an android ios app and website for Rental Management System. I want a project similar to easerent.com.

    €836 (Avg Bid)
    €836 Oferta promedio
    18 ofertas

    Hi there, I need to add some more languages option to my website, to install some plugins, to update the saleor webshop version and to do some more entries of the product, and eventually to add some admin panel dashboard as a cms for the rest of the website. The web shop, itself, already has its own admin dashboard. The site is running over amazon aws servers at the moment. ( amazon Lightsail and relational database services) Thanks Kindly Mateo

    €26 / hr (Avg Bid)
    €26 / hr Oferta promedio
    61 ofertas

    A simple React js web app containing some details of user and when clicked submit the data is to be stored to hyperledger fabric and a responce of Unique key must be given back to the user.

    €60 (Avg Bid)
    €60 Oferta promedio
    11 ofertas

    We are facing one issue. Once sign in is done- apps did not bring the use to the application but user come again to the login page We need an expert who can finish it as as possible

    €35 / hr (Avg Bid)
    €35 / hr Oferta promedio
    63 ofertas

    Foin wallet sending and recipt need , can adjust from wallet i already have

    €507 (Avg Bid)
    €507 Oferta promedio
    38 ofertas

    I want Azure SignalR with ReactJS Chat demo

    €429 (Avg Bid)
    €429 Oferta promedio
    5 ofertas
    I need nest.js Developer 6 días left
    VERIFICADO

    developer Hire based foe small project

    €376 (Avg Bid)
    €376 Oferta promedio
    13 ofertas

    I need a pivot table, in which there should be grouping of rows and columns, aggregation, pivoting(change row to column, column to row.) examples :

    €430 (Avg Bid)
    €430 Oferta promedio
    12 ofertas

    Skills: ReactJS, TypeScript, JavaScript, Figma, Git About the job Key responsibilities: 1. Work on the development of responsive web applications using ReactJS 2. Work by app UI design principles, patterns, and best practices 3. Work on the development of clean module code with proper linting and prettier configurations 4. Write clean code 5. Delegate tasks, estimate project development time, and manage junior developers while working on projects Qualifications: 1. Strong programming skills are required 2. Proven ability to transform a design (Figma/Adobe file) into a website page from the ground up 3. Ability to estimate work for a project 4. Knowledge of server-side application integration (with NodeJS/Apollo Client/GraphQL) 5. High proficiency to build/developing responsive websi...

    €765 (Avg Bid)
    €765 Oferta promedio
    49 ofertas

    We have an issue- After creation the build token provide is not working in react expo apps We need an expert who can solve it.

    €36 (Avg Bid)
    €36 Oferta promedio
    19 ofertas

    Compensation: Up to £75k GBP/150k USD Here at Cutover, we're a collaborative automation platform helping enterprise companies to become more efficient with their time and resources. We're a Series B backed company and have been backed by places like Index Ventures and Elridge. We're looking for multiple API Engineers or Integrations Engineers to join our partner and core integrations teams, helping to create world class API's and services for our customers worldwide. Ideally you'll have experience with React as well as Ruby as we're built with both but we are also open if you have experience with React + other languages. If this sounds fun, feel free to send application.

    €51 / hr (Avg Bid)
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    25 ofertas

    We are looking for a senior frontend developer with excellent React skills. You should - be familiar with React, GSAP, , CSS, animations - be available from 9am to 6pm in EST - be available full-time for the next a few weeks - keep responsive communication Please share the examples you have worked on. (Only React) Thank you

    €15 / hr (Avg Bid)
    €15 / hr Oferta promedio
    169 ofertas
    I need Senior Web Developer 6 días left
    VERIFICADO

    Hi, everyone! I'm looking for a senior react developer who can work with me for the long term. Candidates must have fluent English talking skills and be eager to work with team members. If you are interested, please ping me.

    €18 / hr (Avg Bid)
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    95 ofertas

    Hi there, i need profesional developer and full with responsibilities with the project Fast response also my criteria for this. Okay , u may see the existing system here : login and password please ask me. what i need is , add the new module and develop existing menu : -Layout List menu from side bar change it to top bar- 1. Supplier : (New Menu) a. Crete PO (monthly) (have 3 status : Open, Outstanding/partial delivery, closed/all delivered) b. Oustanding PO (status outstanding) c. History PO (status closed) d. Purchase (create payment for monthly PO, can be partial payment, cash/credit/transfer), also have detail filter e. History Purchase (status Paid) f. Payment (later will be inform) 2. Distribution (New Menu) a. Receive Goods (We can track price movement a...

    €1528 (Avg Bid)
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    99 ofertas
    node.js app.. 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?

    €351 (Avg Bid)
    €351 Oferta promedio
    37 ofertas
    Escrow website/dApp 6 días left
    VERIFICADO

    I am looking for a dev to create an escrow website, that works like the escrows featured in sites like upwork and freelancer, but which caters for web3/blockchain users Dev will be required to do back-end admin to support the front end also. We need to build the dashboard, as well as the areas around it such as the Form Wizard used to create an escrow, a page to manage a selected escrow, etc I believe a lot of time can be saved by using features in this: Our Solidity developer will work with you with connecting it to blockchain. Will still need to made to suit our overall design (shown to shortlisted candidates). I have attached the design we have for our dashboard, everything else should be made to match this look and feel

    €2492 (Avg Bid)
    €2492 Oferta promedio
    64 ofertas

    I need backend django python developer to do apis for my social media site. I only need apis for posting, comment, share, like, add image/video, location, tagging, emoji, and gif to post. if you do good job ill give you more features to do more apis. Cheapest price gets the job.

    €484 (Avg Bid)
    €484 Oferta promedio
    92 ofertas

    Hi, Looking for an expert MERN stack developer with good hold on - React, Node.js, with CRUD. Additionlaly needed : AJAX, jQuery, MongoDB , POSTMAN etc. Project is multiple dashboards, Backend etc. Can be continous year-long work, if you - behave properly, show professionalism & meet deadlines. You must be comfortable in working in - Interactive mode on Gmeet, Zoom etc. If you have other current projects, too much office work, if you are an agency / manager / agent or if you dont work on weekends, plz DONT BID.

    €102 (Avg Bid)
    €102 Oferta promedio
    20 ofertas
    node.js app. 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?

    €81 (Avg Bid)
    €81 Oferta promedio
    21 ofertas
    Shopify App with pricing tiers 6 días left
    VERIFICADO

    I need to create a wholesale app for shopify with the following requirements 1. The app must allow the store admin to define 3 prices per product. 2. those prices need to be applied based on the cart total Example: If the cart total is greater than 100usd then apply PRICE 1 If the cart total is greater than 300usd then apply PRICE 2 If the cart total is greater than 800usd then apply PRICE 3 I’m aware that Shopify does not allow to change the price of a line item in the cart or checkout, so I think we would need to apply a custom fixed amount discount to each lineitem in order to get the item price to match the corresponding one based on the cart value This conditions must apply only to a certain type of user, the user has to be logged in and tagged as wholesaler for the price t...

    €1175 (Avg Bid)
    €1175 Oferta promedio
    36 ofertas

    We need a ReactJS developer who will add extra ReactJS capacity to Existing project, so to improve implementation of design. CSS and HTML skills are required. Good communication in English is a must.

    €461 (Avg Bid)
    €461 Oferta promedio
    137 ofertas

    Freelancers. This project is first project in Sync Software Inc. We are looking for a frontend expert who can be able to build the frontend perfectly. Important - Pixel perfect and user friendly. I will provide the design to right candidate. Tech stack is React, MUI, Semantic UI, , Tailwind css. If you are familiar with PHP, it is a big plus. You must be an expert in this space and work in US time zone. Also you have to start immediately. Please apply with your previous projects(live website + figma design). Sincerely

    €14 / hr (Avg Bid)
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    84 ofertas

    HOME -> adjust image size (set default for all to keep the same size) -> break description into two lines if necessary SEARCH -> clear all filters -> adjust average filter of comments -> add rating 0 -> add rating 5 -> add field "All" same price PRODUCT DETAILS -> integration with Mandaê to calculate shipping -> adjust image size (set default for all to keep the same size) -> be possible to have more than one image (carousel with images) -> format value to standard pt-br (ex: 55.00) -> if the field "countInStock" is 0, show status "unavailable", if it has value, we will show the status "in stock", however in quantity we will show the field "fakeStock" -> comments -> when adding a comment, ...

    €163 (Avg Bid)
    €163 Oferta promedio
    31 ofertas

    I would take this template: THat is very light and SEO optimized and create from this a multi writers blog. I mean a site that share same passion for writing can connect and post theuir storiers. Stories have categories, tags and collections ///////////////////////////////////////////////////////////////// SITE STRUCTURE: Home --> latest stories Categories -> stories grouped by category Tags -> stories grouped by tag Collections -> collections ( collection is a group of stories ) Single Story Page --> story page with related stories , related colelctions and comment area PRIVATE AREA: My Profile --> user can edit his own profile ( biography, social links, display name, avatar ) My Stories --> user can manage his own stories ( add, edit , delete ) My Collections ...

    €308 (Avg Bid)
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    74 ofertas
    React Development 5 días left

    The website will be built on REACT framework for the frontend part. It will include the following features → ● User Authentication (JWTAuth, GoogleAuth) ● UI & UX design ● Services section ● Checkout Page ● User dashboard ● Payment Gateway ● Website Responsiveness

    €259 (Avg Bid)
    €259 Oferta promedio
    21 ofertas

    Requirement: ReactJs Developer Experience: 3+ years to 10 Years Communication Excellent. Drop CV Interview Round will be 2-3. Full time project from US

    €13 / hr (Avg Bid)
    €13 / hr Oferta promedio
    17 ofertas
    node.js app 5 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?

    €89 (Avg Bid)
    €89 Oferta promedio
    25 ofertas

    I want someone who can finish my MERN Stack project. So my project is very simple and most functions have done perfectly. But there is some issue with image processing. I want make my project similar to the ''' I want only upload function. As you can see in this site if you click the upload img button you can see my want. I need your help. Thank you for your time. Regard. PS: At the first of big plz write the "image processing".

    €197 (Avg Bid)
    €197 Oferta promedio
    6 ofertas

    I have a website developed using wordpress and hosted the static version of the site in I want to migrate the whole website into react based website and want to be able to generate the static version of the website using or any similar technology. So that I can host the blog website as a static website. I do not need the existing template for this blog site. I prefer any attractive design template which will be appropriate for the blogs website related to technical blogs. The code need to be comited to my private GitHub repo so that I can checkout and test. I should be able to add new articles (Not thinking of having a UI) and re-build the static version of the site any time in the future. The developer has to provide a documentation ( file also ok) on how new articles can be added and ...

    €53 (Avg Bid)
    €53 Oferta promedio
    37 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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    131 ofertas
    Build me a website -- 2 5 días left
    VERIFICADO

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

    €5020 (Avg Bid)
    €5020 Oferta promedio
    45 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)
    €7 / hr Oferta promedio
    47 ofertas
    MERN Stack 5 días left
    VERIFICADO

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

    €384 (Avg Bid)
    €384 Oferta promedio
    39 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

    €316 (Avg Bid)
    €316 Oferta promedio
    5 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...

    €182 (Avg Bid)
    €182 Oferta promedio
    39 ofertas
    ReactJS developer 5 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.

    €13 / hr (Avg Bid)
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    236 ofertas
    node project... 5 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?

    €110 (Avg Bid)
    €110 Oferta promedio
    36 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.

    €172 (Avg Bid)
    €172 Oferta promedio
    55 ofertas

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

    €17 (Avg Bid)
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    13 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"

    €1329 (Avg Bid)
    €1329 Oferta promedio
    86 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...

    €610 (Avg Bid)
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    95 ofertas

    Principales artículos de la comunidad React.js