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

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

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

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    202 trabajados encontrados, precios en EUR

    Deseo modificar una aplicacion android a nivel de programacion y a nivel visual. Es un proyecto de fiscalizacion de vehiculos. Ya la aplicacion esta hecha solo hay que modificarle algunas cosas y adicionarle algunas mas. Esta hecha en react native.

    €504 (Avg Bid)
    €504 Oferta promedio
    40 ofertas

    Necesito un experto en openalyers para un proyecto sencillo. Necsito ayuda con un proyecto que esta empezado. Si además sabe de openlayers perfecto.

    €319 (Avg Bid)
    €319 Oferta promedio
    5 ofertas

    El proyecto solo es cambiar nombre, logos, colores e instalar aplicacion hecha en React y Redux para iOS y Android - Instalacion es crear la base de datos en Firebase y conocimientos en Google API Accounts para usar google maps - Subir las aplicaciones a Play Store y Apple Store

    €199 (Avg Bid)
    €199 Oferta promedio
    10 ofertas
    React Native Developer needed -- 2 6 días left
    VERIFICADO

    !! Only Freelancers, No Companies !! Hi There I need experienced React Native Developer to work on news app same like as public news app. If you have any exp in news app development, plz bid. We will provide you rest api.

    €123 (Avg Bid)
    €123 Oferta promedio
    7 ofertas

    Desenvolvimento de plataforma para um público específico.

    €577 (Avg Bid)
    €577 Oferta promedio
    9 ofertas
    Write two unit tests using jest 6 días left
    VERIFICADO

    Loking someone who knows very well jest, to write two unit tests for local storage today

    €13 / hr (Avg Bid)
    €13 / hr Oferta promedio
    12 ofertas
    react want register connect to api 6 días left
    VERIFICADO

    react want user who register via social, after first login fill register form ( the form need to connect to api)

    €50 (Avg Bid)
    €50 Oferta promedio
    11 ofertas
    React and Threejs Canvas Project 6 días left
    VERIFICADO

    Looking for an experience React and Three js developer for video editing application. Application requirement. - Can upload multiple video to react application. - Video should be tranformed / converted to Video Texture while playing in canvas by Threejs - Transform video to different brightness/hue/contrast - Apply vertex shaders to the video application. - Apply spring / react-spring animation when playing 2 videos in sequences. The video should switch to next video with small animation on the screen. - Should drag emojis on the video editing canvas to play along with video. - When rendering the video on Canvas, the size/height/width has to be responsive or by passing parameters to fit to the canvas candidate: Ideal candidate should demonstrate work in react/threejs/ffmp...

    €750 (Avg Bid)
    €750 Oferta promedio
    30 ofertas
    NFT play2earn 6 días left

    Innovative NFT play2earn game on the WAX blockchain

    €19 / hr (Avg Bid)
    €19 / hr Oferta promedio
    15 ofertas

    I want to spend 4-5 days in June with a developer based out Delhi NCR to learn how to code a smart contract in ethereum Solidity knowledge and already developed contract experience required

    €320 (Avg Bid)
    €320 Oferta promedio
    7 ofertas
    Next.js, WebRTC and Web Workers 6 días left
    VERIFICADO

    This is a fun project. Your mission, should you accept it, is to fix memory leaks and UX issues in an existing React component. This component performs identity document verifications remotely (using an API) and locally (using a WASM worker). There are two goals for this project: 1) Identify and fix user experience issues related to WebRTC permissions 2) Identify and fix memory leaks, if any Details on UX issue: We are using HTML Canvas with a video stream started by WebRTC to show helpful tips on how to take good pictures for verification. Due to permissions issues with WebRTC on iOS and Android devices, many users complain the app is not working. Currently, the component will show a dialog with help on how to fix the permissions, but it is not enough. We'd like you to help invest...

    €1690 (Avg Bid)
    Acuerdo de Confidencialidad
    €1690 Oferta promedio
    32 ofertas
    Frontend developer - React.js 6 días left
    VERIFICADO

    Convert our figma design reference into perfect responsive and interactive frontend screens. It’s should be very clear that the developer should have an understanding of proper alignments, fonts, colors. Money will not be released if the work delivered is found lacking in those areas. 1st milestone will be created and released after 25 percent of the work is done. No milestones will be created in advance.

    €260 (Avg Bid)
    €260 Oferta promedio
    25 ofertas

    Hello, I need to create the React project, which will contain the Blog, admin panel and information about me. Project should be animated and look modern. Please send me your portfolio.

    €413 (Avg Bid)
    €413 Oferta promedio
    63 ofertas

    Marketplace with accounts (MongoDB), Stripe payment support and admin panel for suspending / managing accounts, chatbox with clients. Write it in ReactJS and Node.js, ExpressJs. It needs to be mobile friendly. It should look similar to this: Please post an example mockup and how you would build it along with your portfolio (no fakes, I will know that it's not you).

    €175 (Avg Bid)
    €175 Oferta promedio
    19 ofertas

    We have a site called it is a social media site we need to redesign the site as We have license for this theme you can also download the sample code

    €452 (Avg Bid)
    €452 Oferta promedio
    106 ofertas

    Unsere Software steuert Arbeitsprozesse und Arbeitszeiten. Die Software ist für kleinere bis mittlere Betriebe vorgesehen und sehr einfach zu bedienen. Die Software ist bereits im Einsatz. Es müssen noch Bugs behoben und regelmäßig neue Features hinzugefügt werden. Our software manages workflow and employee working hours. The software is running already for a production company. There need to be fixed some bugs and added some new features.

    €15 / hr (Avg Bid)
    €15 / hr Oferta promedio
    12 ofertas
    twitter login/register fix 6 días left
    VERIFICADO

    twitter login/register fix and for first time regsiter need to fill register form and send value via api

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

    Demonstrable proficiency in HTML, CSS, JavaScript, Typescript, React, Redux, RxJS, Yarn and related technologies for client-side JavaScript libraries/frameworks development Understanding of the principles of web application development, and developing pragmatic web-based APIs Experience in building high-performance desktop/web applications Work experience with relational databases such as SQL Server, and MySQL Strong problem-solving skills - the candidate should be able to provide examples of applying analytical and technology skills to solve a non-trivial problem Apply relevant standards and best practices into one’s work. Demonstrate keen attention to detail, edge cases, and cascade effects. Flexibility to learn new tools, technologies, and domains as required Knowledge of other we...

    €662 (Avg Bid)
    €662 Oferta promedio
    16 ofertas

    This website is to track the employee's progress, assign them competency programs, and take attendance based on whether the employee has attended the program. This website should be built using the MERN stack. The features that it needs to include are: 1. Login/Logout or Registration -> 3 different entries should be there -Administrator (HR, Trainer) - Employee -Supervisor 2. Training calendar in tool 3. Training record (Attendance, Feedback) 4. UI for feedback /Attendance 5. Display – Dashboard 6. Metrics – Employee wise /dept (Report structure tree of Employees) 7. Competency Management - UI for Managers to fill (Excel to Database porting) 8. Competency monitoring of each employee (actual vs target chart) 9. Employee Competency history tracking – If the ta...

    €176 (Avg Bid)
    €176 Oferta promedio
    6 ofertas
    Android App 6 días left

    APP for Android Title: Mental Ability for NTSE Login/Signup Pdf Testing (very important) (MCQs) Test Evaluation Performance check Result Payment collection

    €124 (Avg Bid)
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    13 ofertas
    Morchenkat 6 días left

    I am looking for a react native and developer to complete some tasks and answer some questions towards the tasks I am requiring.

    €149 (Avg Bid)
    €149 Oferta promedio
    7 ofertas

    An existing app needs to rebuild with a new, modern infrastructure. Dashboard app layout with subscription plans and notifications(sms) system. Stack: , Nodejs, AWS, MUI, GitHub, Redux Services: Payment, Mails, Notifications We have details app specification documents and mockups.

    €477 / hr (Avg Bid)
    €477 / hr Oferta promedio
    57 ofertas

    Need a react.js developer for a NFT website. - Have have knowledge of React.js/Web3.js - Must know how to design the website according to our requirements

    €42 (Avg Bid)
    €42 Oferta promedio
    34 ofertas
    Full Stack Development 6 días left
    VERIFICADO

    Looking for 2+ Years Exp. As a React Js. and Node Js. Developer Must has experience using node js backend and api's and should be comfortable in react js. frontend Exposure to MEAN/MERN Experience in translating UI/UX designs into code

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

    Hi, I have some existing code for a ReactJS -- electronJS. Looking for reactjs expert to make some modifications in terms of design, css, adding animtaions, updating content.

    €321 (Avg Bid)
    €321 Oferta promedio
    18 ofertas
    need a reactjs and node developer 6 días left
    VERIFICADO

    need to change some ui of an already built project and host it.

    €101 (Avg Bid)
    €101 Oferta promedio
    19 ofertas

    social login need already have some api intergreate for first time signup need to complete register form

    €29 (Avg Bid)
    €29 Oferta promedio
    12 ofertas
    nft marketplace backend need -- 2 5 días left
    VERIFICADO

    i alrady have frontend, but need backend and all function

    €514 (Avg Bid)
    €514 Oferta promedio
    54 ofertas
    NMI Payment Intergration 5 días left
    VERIFICADO

    Hello freelancers! Hope you are doing well. I need someone who can make NMI payment integration() in react project. If you have experience in there , please place a bid. Thanks.

    €149 (Avg Bid)
    €149 Oferta promedio
    13 ofertas

    i have a frontend dapp website, i want to be able to read wallet addresses that connect wallet to my dapp

    €126 (Avg Bid)
    €126 Oferta promedio
    21 ofertas
    Criar Extensão para Traders -- 2 5 días left
    VERIFICADO

    Desenvolver uma extensão baseada na corretora iqoption. Compatível com: Chrome - Opera - Firefox - Brave - Vivaldi - Edge Linguagem: Português / Inglês Layout: O tema para criar a extensão será fornecido por mim. Front-end: Todo front-end da extensão será consumido por uma api websocket já pronta. Back-end: O desenvolvedor não terá trabalho no backend, pois o mesmo será consumos da API. Nota sobre API: A api pode ser alterada de acordo com as necessidades do desenvolvedor. Especificações pós download: Ao fazer download da extensão, sempre que o usuário for acessar a um determinado link, ele sera redirecionado para um link parecido/modificado. ( afiliado ) Dentro da ex...

    €448 (Avg Bid)
    Destacado
    €448 Oferta promedio
    6 ofertas
    Job Portal web site -- 2 5 días left
    VERIFICADO

    Need to build a job portal by using react and node, where recruiters can chat and send emails to the candidates. Already have UI templates in react, and services need to be built in node with mongo. Need to build a JOB portal Authorization Authentication: Login, register, forget the password, reset password, etc Users: Recruiters, applicants, organizations Recruiters: Able to create, read, update, delete jobs  Able to view all the list of applicants  Able to reject, shortlist, hire etc,  Recrutier can send messages to the applicants  Able to remove the job and stop applications Users:  Able to see list of jobs  Able to search jobs based on city, skill, etc  Able to apply jobs with resume and liked in  Applicants can send messages to the recruiter

    €96 (Avg Bid)
    €96 Oferta promedio
    9 ofertas

    Por favor, regístrate o inicia sesión para ver los detalles.

    Sellado Acuerdo de Confidencialidad
    Front End for ecommerce Project 5 días left
    VERIFICADO

    We need to - Build eCommerce front end (Admin Dashboard - customer side ) - Already we are working on the backend -> we need to link to the front end for the front end -> anglurJs or React

    €1089 (Avg Bid)
    €1089 Oferta promedio
    140 ofertas
    Bug Fixing in Ecommerce Portal 5 días left
    VERIFICADO

    Fix Cors error & other bug fixing in the e-commerce Portal Tech & resource 1) hosted on was 2) images on the s3 bucket 3) node js for backend 4) firebase 5) react for front end

    €100 (Avg Bid)
    €100 Oferta promedio
    8 ofertas

    Hello guys. I am looking for blockchain developers who can work with my

    €2488 (Avg Bid)
    €2488 Oferta promedio
    33 ofertas

    Unsere Software steuert Arbeitsprozesse und Arbeitszeiten. Die Software ist für kleinere bis mittlere Betriebe vorgesehen und sehr einfach zu bedienen. Die Software ist bereits im Einsatz. Es müssen noch Bugs behoben und regelmäßig neue Features hinzugefügt werden. Our software manages workflow and employee working hours. The software is running already for a production company. There need to be fixed some bugs and added some new features.

    €25 / hr (Avg Bid)
    €25 / hr Oferta promedio
    25 ofertas
    Google Map "display path" Expert. 5 días left
    VERIFICADO

    I need to display any path follow link. The deadline is 5 hours Please contact me if you are expert in this area Thanks

    €158 (Avg Bid)
    Acuerdo de Confidencialidad
    €158 Oferta promedio
    6 ofertas

    I want to get added razorpay payment gateway in one of my react js project,based on firebase backend and react native in frontend

    €51 (Avg Bid)
    €51 Oferta promedio
    9 ofertas

    Please read this clearly and do not send the proposal if you can't show me your similar project. The project is about a website that has the main features: -User (host and client) Management -Host Page (sharing their screen like zoom meeting, and all users can annotate together with host permissions.) -Client Page (display shared screen and also can annotate the shared screen with other users with host permissions) -the shared screen can be annotated (write, erase, change color) and saved in image format. -The host can kick the client and disable the annotation permission. the concept:

    €619 (Avg Bid)
    €619 Oferta promedio
    22 ofertas
    Slot for cryptoneed 5 días left
    VERIFICADO

    Slot for cryptoneed metamask connect

    €451 (Avg Bid)
    €451 Oferta promedio
    37 ofertas
    Partyfyd App 5 días left

    It's a suite of applications like a couple of Android Apps built in React Native, a dashboard built in ReactJS and backend built in NodeJS.

    €3 / hr (Avg Bid)
    €3 / hr Oferta promedio
    5 ofertas

    We are looking for a freelancer or consultant who can work 8-9 hours daily during regular india work hours. Candidate must not be employed full time with any other company. See the attached JD.

    €1495 (Avg Bid)
    €1495 Oferta promedio
    10 ofertas

    We are looking for a freelancer or consultant who can work 8-9 hours daily during regular india work hours. Candidate must not be employed full time with any other company. See the attached JD.

    €2627 (Avg Bid)
    €2627 Oferta promedio
    9 ofertas

    The project includes the following functions - 1) Controlling devices over MQTT 2) Multiuser login system with admin panel 3) device scheduling and monitoring 4) interactive + user-friendly interface 5) Realtime Data representation (chart,graph,bars) I'll share more details in person.

    €642 (Avg Bid)
    €642 Oferta promedio
    22 ofertas
    AWS EC2 Set-up and Mongo DB Set-up 5 días left
    VERIFICADO

    I need to move our environment which is currently in development over to AWS EC2 We have three Github repositories react/node/angular to connect and one Mongo db. I need this sorted quickly.

    €146 (Avg Bid)
    €146 Oferta promedio
    43 ofertas

    i need a developer who record website valuable functionalities with screen recorder 1. record only valuable functionalities 2. record only best feature 3. not record (landing page or designs) i am attach a file. This file have lot of website please choose best 5 website then record website valuable functionalities with screen recorder one by one. that should be 5 video for 5 websites. after recording please upload google drive then send me with offer. it should be help me find a best person.

    €47 / hr (Avg Bid)
    €47 / hr Oferta promedio
    5 ofertas

    YOUR BID PRICE IS FINAL. NO LATER CHANGE ALLOWED. I need an experienced programmer with good knowledge to modify my website where users can sign up, login and upload video files and then create interactive videos which they can share, embed the videos. Users are able to build clickable interactive video. Check my website: Login: user1 I need to add some more features: 1. Making the whole site mobile friendly. Right now, only the homepage seems to be mobile friendly 2. Adding password system. It should have been done earlier. But anyway, we can add now 3. Option to export the messages as .CSV or .XLSX 4. Option to add texts & icons on the videos. Both normal text and animating text system to be added. Texts should have font style, size, color features and text can be dragged, droppe...

    €113 (Avg Bid)
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    6 ofertas
    React UI designer -- 2 5 días left
    VERIFICADO

    We need React UI developer for our current project

    €4 / hr (Avg Bid)
    €4 / hr Oferta promedio
    30 ofertas

    Principales artículos de la comunidad React.js