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 264502 comentarios, los clientes califican nuestro React.js Developers 4.84 de un total de 5 estrellas.
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    180 trabajados encontrados, precios en USD

    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...

    $441 (Avg Bid)
    Acuerdo de Confidencialidad
    $441 Oferta promedio
    12 ofertas
    Mejora a página web adlyceum.com 3 días left
    VERIFICADO

    1. Hacer la página responsiva para que se adapte a los diferentes tamaños de pantalla 2. La página consiste en cargar artículos hechos por estudiantes, lo que necesitamos es que estos se puedan cargar desde documentos con formato word convirtiéndolos a formato html con un estandard como este Adicionalmente, debe incluir imágenes, tablas, bloques de texto, y links web que estén dentro del documentos word.

    $463 (Avg Bid)
    $463 Oferta promedio
    68 ofertas

    Creación de tabla de datos donde se relacione el link que corresponde a cada usuario. Embeber en la Plataforma web PBI Logueo y direccionamiento: Los usuarios no tienen licencia de PBI, por lo cual se debe hacer por medio de token. Video de referencia: Pantalla de administración en la que el administrador de la plataforma pueda relacionar el link del dashboard que corresponde a cada usuario.

    $130 (Avg Bid)
    $130 Oferta promedio
    4 ofertas

    A) Desarrollo de un sitio web y aplicación (iOs y Android) de directorio de negocios B) Instalación y puesta en marcha en Google Cloud Platform C) Es indispensable que el desarrollador o desarrolladores tengan algo así existente que se pueda negociar su adaptacion. El prototipo de alta fidelidad está disponible en:

    $2263 (Avg Bid)
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    46 ofertas
    Next js frontend 1 día left

    Nececito un master en frontend movil first para el diseño del frontend usando

    $502 (Avg Bid)
    $502 Oferta promedio
    62 ofertas
    React Frontend Designer 6 días left
    VERIFICADO

    Hello everyone, I'm looking for a frontend developer. Neet to design a landing page using React. You must know well React and typescript. This is urgent project. So you must deliver in 3 hours. If you are expert kindly bid. I'll accept you Thanks

    $41 (Avg Bid)
    $41 Oferta promedio
    12 ofertas

    i want to Build a website which uses firebase. the website should use the same functionality in this android app : the freelancer should post what framework they will use to build the website with.

    $516 (Avg Bid)
    $516 Oferta promedio
    7 ofertas

    Hello, guys. Please make simple Youtube signup and signin page. And then get user profile at that time, you dont have to save that to backend database. Just need to write that info in json file. That's all. You make a project and then send me video. After I make a payment, you will give me source code lines. Remember that this is just demo project. Thanks.

    $104 (Avg Bid)
    $104 Oferta promedio
    6 ofertas
    Need a full stack developer 6 días left
    VERIFICADO

    We Need a full time "Full Stack Developers" with minimum 3+ years of experience, who can work from ahmedabad,gujrat, india

    $764 (Avg Bid)
    $764 Oferta promedio
    37 ofertas

    We need Tailwind UI Components (), as reusable react components. It must be Typescript and the components should be fully reusable. The style stays the same as it is on tailwindui.com. We only need the Application UI Components. There are 10 Groups: Application Shells, Headings, Data Display, Lists, Forms, Feedback, Navigation, Overlays, Elements, Layout. You can find the sample tsx file on attachments Please Write YES to top of your proposal if you read this.

    $193 (Avg Bid)
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    24 ofertas

    I need a automobile website. I need a feature like for listing the vehicles, comparing the vehicles and change onroad price based on api, need a login form so that user can enter details when he want to see the price of vechile.

    $300 (Avg Bid)
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    16 ofertas
    It is a Website 6 días left

    It is a recommendation system which uses React in Frontend, Python for Machine Learning model and Django at Backend. The frontend and the ML part is completed. I need help with the backend part. I need someone who can make an authentication system for my backend(sign up, sign in with Mail Verification, Forgot password functionality) along with 3-4 restful apis for transfer of data between frontend(React) and Backend(Django) in order to integrate frontend with backend

    $93 (Avg Bid)
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    5 ofertas

    Reactjs developer -- Need to fecth restAPI data and make charts.

    $18 (Avg Bid)
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    11 ofertas

    We are looking for full stack developer for our Ahmedabad, Gujrat, India office, with 3+ years of experience in React Js, PHP & Laravel Please only eligible candidates can apply only

    $1340 (Avg Bid)
    $1340 Oferta promedio
    21 ofertas

    I need a daily help in delivering my daily development tasks end to end. Project is using HTML, CSS, JAVASCRIPT, REACTJS, Redux, Redux thunk, custom Api, Typescript, Jest. Tasks can be a feature development or delivering a pixel perfect design from figma or both. Need an expert to deliver such tasks in tight deadlines. Should be able to complete task between 12pm - 6pm IST

    $7 / hr (Avg Bid)
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    12 ofertas
    Complete sentence using photos 6 días left
    VERIFICADO

    - web app for children with dificulties - complete sentence using photos - base of photos, each photo has: - upload image - enter title - record audio - category of the image - parent ads sentence on stage which child needs to complete using photos which are selected from the base There is no need for checking is sentence is all right, validation of some kind, testing or fancy css. Simple and basic since this app is for my private purposes. I will later use apache cordova to play the app on the phone or tablet. Plase send me just personalised messages which are refering to this specific project and not bulk offers messages.

    $477 (Avg Bid)
    $477 Oferta promedio
    83 ofertas

    Need to convert figma pages into react..js next js

    $109 (Avg Bid)
    $109 Oferta promedio
    23 ofertas

    Admin approval for staff to get them registered into database Staff can do Crud operations to the books and also can ban user User login and issue ant book according to availability of the book , a request will be shooted to staff to approve the issue of book ,if staff approve he can access that book or if he decline staff will send a feedback message for not letting the book issue There are many more functionality

    $310 (Avg Bid)
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    9 ofertas
    Create NFT Marketplace 6 días left
    VERIFICADO

    Create NFT Marketplace for ETH and Solana

    $990 (Avg Bid)
    $990 Oferta promedio
    51 ofertas

    We are the Elegant Studio Development team. One Front-end developer is needed. We need a React Expert who have a lot of experience in Responsive Design. Please show me the example you have done before. Don't use the auto-bid app. Please start 'React-Expert' on your start of the bid in order to easy to check.

    $32 / hr (Avg Bid)
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    55 ofertas

    The project is build using React. The primary job is to write react UI components in typescript. The scope is limited to just writing individual components where the interface has already been designed. The developer needs to simply understand the interface and write the stateless UI components. There is no integration as such to be done. We are simply expect the output to be a set of standalone components that are written as per the specification. The project is supposed to last for a while with the developer working with us in each phase doing similar task.

    $2466 (Avg Bid)
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    15 ofertas

    Need a basketball Widget/tool that can integrate with react. Contributors need to be able to use a mobile phone webapp to input using the shortcut buttons you see in screenshot. I need the output to create a line by line string for each play based on the buttons selected.

    $525 (Avg Bid)
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    110 ofertas
    NFT Marketplace 6 días left

    We are looking for devs who can help us with our NFT marketplace project that is built on both the Ethereum network and Solana. This will be something similar to OpenSea / MagicEden. We have all the smart contracts ready (both for Eth and Sol) but need to now: implementation of the Figma UI mockup (Figma page is done so need to do API calls and the business logic mapping etc). Build the following features that are currently not there on the backend: NFT indexing for both Eth and Sol Wallet Analytic modules -wallet analytics based on user transaction NFT analytic modules- create analytics for NFTs owned by a user NFT loan module - connect existing smart contract with UI, business logic, etc Order Book feature: the ability for a user to place an order for an entire collection, a part...

    $6218 (Avg Bid)
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    28 ofertas

    Hello everyone, i will need to build a website with ReactJS and NextJS with 10 to 12 pages with CMS in a suitable time.. thank you in advance

    $232 (Avg Bid)
    $232 Oferta promedio
    45 ofertas
    Build a web application 6 días left
    VERIFICADO

    You can check the project prototype before you go through the project details. Here is the link to the prototype: Project description Most of us may have a choice disorder and find difficulty in deciding what to eat for each meal, and our group accordingly propose an application with functions that help people solve this problem. We divide different cuisines into three groups: breakfast, lunch and dinner, to automatically make the decision for you. Users can receive an option by only clicking the start button. Functionality description - Decision Phobia Terminator (DPT) is a web-based application that helps people to decide what to eat for breakfast, lunch and dinner. - DPT is a single-page application with one interface, demonstrated once users enter the website. - The technical stack...

    $45 (Avg Bid)
    $45 Oferta promedio
    22 ofertas

    I need a website in reach, it's a gaming website

    $1129 (Avg Bid)
    $1129 Oferta promedio
    90 ofertas
    Need a website on Reactjs -- 3 5 días left
    VERIFICADO

    I need a website on Reactjs Website will be just a landing page which will contain animations. Only serious freelancers place bids.

    $81 (Avg Bid)
    $81 Oferta promedio
    21 ofertas
    YoutubeExplode 5 días left
    VERIFICADO

    Develop a mockup page in ReactJS, as shown in the attached image, using the MUI CORE Material UI library ().

    $20 (Avg Bid)
    $20 Oferta promedio
    24 ofertas
    Project for a new website 5 días left
    VERIFICADO

    As explained in document, attached in chat

    $14 / hr (Avg Bid)
    $14 / hr Oferta promedio
    119 ofertas
    full stack developer ( blockchain) 5 días left
    VERIFICADO

    Mandatory Skills: React.Js, NodeJs, , Github, UI/UX Optional Skills: NextJs, Tailwind, AWS, CI/CD Internship Mode: Semi-fulltime Intermediate # 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 levera...

    $9 / hr (Avg Bid)
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    55 ofertas

    small project having 2 page website in react .

    $15 (Avg Bid)
    $15 Oferta promedio
    34 ofertas
    Pancaleswap lottery fork 5 días left
    VERIFICADO

    I am looking for an expert who is very familiar with the PancakeSwap Dex, especially the lottery. As you know, Pancakeswap uses cakes to buy lottery tickets. I want to change to BUSD. If you do well on this project, I'll hire you on a big, upcoming project.

    $230 (Avg Bid)
    $230 Oferta promedio
    25 ofertas

    I have issues with my landing page the page stopped working suddenly without any modification from our side. The freelancer that created it isn't available and I need a fix. As you can see from console there are some endpoints that are not reachable (prize_pool and setting). Here an explanation of the webapp: ----- On people can connect their private crypto wallets to pay an amount of SOL to the "admin wallet address", and they will get a ticket. At the end of the raffle 3 winners will receive 25% of the whole pool. There is a countdown, when it finishes the page redirects to the "raffle end page" where it shows texts and winners (url remains always the same) All variables like end page text, title, winners, countdown setup are modifiable in the admin page....

    $24 (Avg Bid)
    $24 Oferta promedio
    36 ofertas
    Develop Web platform and database 5 días left
    VERIFICADO

    We have established a database of people with disabilities and those with chronic diseases. This database needs to be updated regularly given the high mobility and mortality rate of these groups. To this end, a web platform should be set up to provide regular information on these households and their distribution in addition to the tasks of organising the updating missions.  User management : - Definition of user groups and roles - Definition of the privileges of the different roles  Design the user interface and user experience to ensure that the application is user-friendly; o Develop a web platform connected to the database of disabled people's households and including the following modules - Consultations on the number of households targeted and collected. - Viewing key infor...

    $36 / hr (Avg Bid)
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    118 ofertas

    I have already the source code i need someone to modify the source code and make it works fine only. it is discord bot

    $20 (Avg Bid)
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    10 ofertas

    It is an ongoing project. It is a typical web application with many forms. It is built in Django + React and REST API with Postgres DB - The current priority is the integration of APIs with the front end and modifying/creating APIs as per the need - Integration with third-party apps needs to be done - Other miscellaneous tasks, within the project scope. - I will not bother you much about styling. Requirements: I need 6 hours daily. We are short on time and have missed the deadline already. Please apply only if you can give 6 hours per day. Start your proposal with '6 Hours' so that I can know, you have read the description.

    $12 / hr (Avg Bid)
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    23 ofertas
    React Project 5 días left
    VERIFICADO

    Looking for a full time React Developer with three years experience!

    $338 (Avg Bid)
    $338 Oferta promedio
    34 ofertas

    This project is based on Real Estate Property Management where USER [ Agent, Lender] can manage Property and Clients over this Platform with the assistance of other USERs [Home Inspector, Title Company] to meet the requirements of the Home Owner. Super Admin and Admin will have the entire access to this platform.

    $2775 (Avg Bid)
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    86 ofertas
    Develop DataTable in React 5 días left
    VERIFICADO

    I want you to develop two datatables and three pop-up forms using react bootstrap. Table must me responsive. Table header sorting must work (ex: high,low, A-Z, Z-A, etc sorting) like jquery data table. Code has to be clean and neat. Take any dummy data just to check the table functionality. On hover effects must be there. Pagination must work perfectly, Showing entries in the table must work perfectly. On click update status button it should throw a pop-up as shown in the Data-Table-pop-up.pdf. Table must look exactly same as On-click checkbox in the header it show tick all the check boxes for bulk actions. In the search input field there must be place-holder animation (It should type automatically to gain the user attention example: / ). In the pop-up when we search for someth...

    $34 (Avg Bid)
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    9 ofertas

    Web Application development using react.js, bootstrap and expressjs

    $40 (Avg Bid)
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    13 ofertas

    Scale Dino, a SaaS based product start-up based in Hyderabad is looking for an experienced and outstanding freelance frontend developer / UI Developer who will be responsible for coding innovative designs and layout of websites. If you can build websites from the concept stage and ensure everything from layout to functionality is in place, you are the one we want. You will be expected to: Write well-designed, testable code with the help of the best software In-depth knowledge of JavaScript, CSS, HTML, React js, and front-end languages Create website layout/user interface by using standard HTML/CSS practices Integrate data from various back-end services and databases Gather and refine specifications and requirements based on technical needs Co-operate and work with web designers to matc...

    $12 / hr (Avg Bid)
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    46 ofertas

    I just need the Home page and Login or Sign Up Page for The design should match the Colour theme of Need clean and promising design

    $92 (Avg Bid)
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    36 ofertas

    I just need the Home page and Login or Sign Up Page for The design should match the Colour theme of Need clean and promising design

    $96 (Avg Bid)
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    41 ofertas

    Need for full stack developer (React + NodeJS + MongoDB) who can work for a project on monthly basis

    $4 / hr (Avg Bid)
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    27 ofertas

    Looking for someone who can help build out a Power Platform solution based on Power Apps and Power Automate.

    $31 / hr (Avg Bid)
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    38 ofertas
    XState State Machine Modeling 5 días left
    VERIFICADO

    I'm looking for a developer to model multiple process flows in a restaurant using XState framework (state machine). The context is one of a restaurant: - Customer orders food and drinks from a waiter. - Drinks and food get dispatched either to the kitchen or the bar. - In parallel, those get prepared. - As soon as either drinks or food is prepared, notification is sent to the waiter for ready items to be brought to the customer. Other flow may be needed if first job is sucessful. Deliverables will be working typescript code. Communication will be text and audio/visio-based. In english. Please mention in your application your previous experience with state machines and XState.

    $20 / hr (Avg Bid)
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    React UI changes 5 días left

    By clicking the + need to show only relevant data from service response.

    $20 (Avg Bid)
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    Hello, We have a free email system with API support. We want outside users to come to this system and register. When registering, we actually open an e-mail account for users. Afterwards, users will be able to log in to this e-mail address with webmail and mobile applications. However, the only thing required from you is the coding of the area where the account is registered and the API is managed. Examples: The scenario is as follows: The user fills the following form on the website: Name and Surname (Separate boxes) There will be a box with @ written at the end of the box. Username is entered in this box and if the user leaves the box, the availability of the username is checked with the API. Password and password confirmation boxes: This field must contain at least 8 charact...

    $254 (Avg Bid)
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    32 ofertas

    An informative website fully designed UI/UX for development using the latest stable Angular/React and integrated with for content management as a headless CMS backend. 13 website pages -landing page -technology -about -services -rentals -brokers -blog -API OnboardMe -API Flows -API IdentifyMe -API SignMe -Checkout Fully responsive website with some animations and needs to be really well developed. Screens of some of the different pages are provided below for reference to understand the layout and the general flow of the different pages and the amount of work involved. Preferred tech: - Angular development connected with - HTML5 CSS and Typescript for small animations and transitions

    $2529 (Avg Bid)
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    The task is to display the repositories and allow the user to filter through the repositories. Use the official GitHub API to fetch and display repositories per user.

    $14 (Avg Bid)
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    19 ofertas

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