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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    201 trabajados encontrados, precios en USD

    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.

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

    $338 (Avg Bid)
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    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

    $211 (Avg Bid)
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    YOUR BID PRICE IS FINAL/NO LATER CHANGE IS ALLOWED. I DON'T DEAL OUTSIDE FREELANCER. PLEASE CHECK ALL THE ATTACHED VIDEOS FIRST. I have an existing HTML5/JavaScript, opensource Photo Editor installed in my Shared Linux Server. Please visit (It is made in PHP/JavaScript/HTML5) I want to add just two features in this tool: should be a collage maker system just like this website Should be able to download high-res in JPEG/PNG. You need to add some templates and show me how can I add more. See: 2. Image background remover in one click User Uploads a picture, click on the Background Remover Button, background gets removed. User downloads as PNG or JPEG. User should also be able to add a new Background. Please check attached video. You cannot use any PAID API/Library/Plugin. Only...

    $76 (Avg Bid)
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    2 ofertas

    I want .net guy with react as full stack developer i will pay you every week on next Monday for last week Monday to Friday working

    $4 / hr (Avg Bid)
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    React.js Website Developer -- 2 6 días left
    VERIFICADO

    Need a react.js developer to design my website in 2 days

    $117 (Avg Bid)
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    38 ofertas
    backend developer 6 días left

    5+ years work experience. Strong skills with JavaScript (ES6+) Production experience with modern client-side web frameworks such as React Working knowledge of Redux, or other state management frameworks Advanced knowledge of NodeJS, Express Experience with backend data / API integration on UI using JSON and RESTful web

    $130 (Avg Bid)
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    Typescript Expert 6 días left

    I need a typescript expert who has good experience with typescript react. - Bug fixing - Consulting

    $23 (Avg Bid)
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    2 ofertas

    MAX Budget MAX is USD 1000.00. if budget is ok for you then just we discuss. So after review 4 document. If you think can do this task then JUST chat with me for more detail. 1.) Need using Twilio API do to phone checking and get OTP through SMS, whatsapp, Wechat 2.) Payment gateway will use our country payment gateway [] 3.) You need create front end UI/UX and back-end together. 4.) Using React framework for front end and integrate that using API Back-end keep in Node.js. So it will be a complete package of REACT/Node.js/FIGM/MYSQLIA My project you need do is 1.) User upload/capture any receipt images, system will do OCR image and get data. And reward point [REFER document] - REMEMBER, receipt have many type so system need capture amount Variable, date, receipt ID - Client can ...

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    -Fortune tellers can ask to make an account and an admin has to review their application and confirm it. -Fortune tellers need to put their bank account infos, in which they will receive their payments monthly automatically. -Fortune tellers have ratings and only online and available fortune tellers are displayed in home. -Fortune tellers can activate or deactivate how they want to be contacted, via chat, messages or voice/video chat(each method costs a different amount of coins per minute). more details will be discussed

    $702 (Avg Bid)
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    Nextjs Web Application 6 días left
    VERIFICADO

    I am looking for a web developer to build some simple pages from an already designed html The goal is to release a fully documented and tested react or nextjs web application with state management tool of the developers choice. e.g Redux The application also needs to include some simple e-commerce CRUD functionality attached to a backend API and database. E.g consuming products, blog posts, updating carts The backend API is already built using Laravel. You will only need to make sure requests are sent to the API. You will not have to build the API All tasks are defined and described on JIRA with use case stories and acceptance criteria. The code base lives and must be maintained in our own git repository and code comitted must be well documented and tested

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    Looking to build a cloud based call center web app using Twilio API on AWS server, for inbound and outbound calls. Skills: React.js / React Native / Node.js -- FrontEnd UI & BackEnd MySQL -- DB WebSocket -- Pushed data in real time into the web app. Some features: - Various routing rules - Analytics reports - Web based dialer - Time clock management Design will be provided. Must have experience with Twilio API & building web based call centers. Reach out to us for more details.

    $1162 (Avg Bid)
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    Strong JavaScript Coder 6 días left
    VERIFICADO

    I have multiple coding assessment that needs to be completed ASAP. Looking for someone with strong JavaScript coding background to be help.

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    We need an experienced and very skilled React Native developer to join our development team on a full time and long term basis. You need to be able to both contribute to our existing React Native apps and to be able to start new projects from scratch. Good knowledge in javascript, react native, java and objective c is a requirement. You need to have access to a Mac, iPhone and Android as well as a stable and fast internet connection to be able to develop and test the apps.

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    Hi I am looking for a JS developer that can pass the JEST testing. Let me know if you are familiar with JEST library in React.js Thanks a lot.

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    I have an API connection but it is not working any more.

    $173 (Avg Bid)
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    Multiple JS Developers wanted 6 días left
    VERIFICADO

    Hi, we're looking for our new SaaS product JS/react/NodeJS/ExpressJS etc. Developers. We have already the complete front design, so we need mostly backend developers. Please only apply if: - Experience with complex applications and DB's - High code Quality + Documentation - Understanding English - Experience with GIT / working in a Team - Mention 01110 in your proposal Quality over Quantity.

    $32 / hr (Avg Bid)
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    Submit answers in your proposal please Please take your time and answer to following questions Note this is a long term project 1. can you develop an app for IOS ? 2. can you develop an app on android 3. Did you ever LIST apps on app store the app for IOS and Android ? 4. can you take a template and remodel it? change location of boxes, charts, etc... 5. Did you install a react js template on a dedicated server WHM /CPANEL on a subdomain? 6. How many hours can you dedicate per week 7. How many hours can you dedicate per day? 8. When can you start? 9. I require 1 conference call per week to talk about project updates etc via VIBER app. Do you have a smartphone that can install this app ? 10. How many years of REACT dev experience do you have ? 11. are you ok to work for $12/...

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    10+ years software development experience 5+ years deep experience with NodeJS / Express 3+ years experience with MongoDB Experience designing and building RESTful APIs Experience with the DevOps mindset, Continuous Delivery and test driven development Fluency with GIT Experience with AWS Experience with Frontend ReactJS is a big plus

    $65 / hr (Avg Bid)
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    Español: Se necesita desarrollar una pagina web informativa para una empresa de tecnología. Sera 100% informativa a excepción de un modulo para enviar un correo en contactanos, de resto serán puras vistas y redireccionamientos. - La pagina debe realizarse en react y tailwind (Responsive). - Se debe crear un diseño utilizando los colores del logo que se le va a proveer al que acepte el proyecto. - La pagina debe deslizar al hacer click en alguno de los botones (Contactanos, servicios, acerca de, etc), todo el contenido debe estar en la pagina principal - Botones de redes sociales en el header o footer - Cambio de idioma Español/ingles - Boton para subir del todo hacia arriba, para contactar por whatsapp y para enviar correo Ejemplos: para to...

    $190 (Avg Bid)
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    Full stack developer required 6 días left
    VERIFICADO

    We are looking for a motivated Full stack developer and You will work collaboratively with team of Full stack Engineers and UI/UX/ Experts to roll-out the solution. Who we’re interested in: • Must be able to work independently and remotely in an agile manner and his capable of meeting strict timelines. • Must be able to think out of the box and pays attention to details • Experience using JavaScript, CSS, and HTML5 • Must have experience with React/ Angular/Java/PHP, Python/Django framework • Experience with REST API’s. You’ve hookup and used an API with a web frontend before. • Worked with mysql and redis

    $32 / hr (Avg Bid)
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    1. Leave the code clean and with instructions for any DEV to do maintenance and other improvements. 2. Integrate the game engine with the backend 3. Include the financial area and agent accounts 4. Apply the multi-site role so that we can label the agents. done that I'm ready to start, send with your proposal the secrecy and confidentiality clause

    $1172 (Avg Bid)
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    I am looking for a MERN stack engineer who can help us develop new features and regular maintenance on the existing Gym management software. SQL, Spring experience would be helpful.

    $34 / hr (Avg Bid)
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    Note: The request of this post has changed to reflect a new requirement: Experienced NodeJS Javascript Application Engineer needed. Fluent english is an absolute must. Proof of work and portfolio is a must. Project Deliverables: - Comb over already written nodejs application, ensure it follows proper OOP - Prep code to utilize threejs 3d animations This code was written by previous team of engineers. One must be comfortable with being able to comb through code written by someone else. We are very serious about continuing this relationship with an individual in the long run. Serious candidates only. We are experience AWS/DEVOPS Engineers, we expect you to be passionate and serious about formidable code.

    $27 / hr (Avg Bid)
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    Requirement 6 días left

    ■ Requirements - Modern Open GL 3.3 or 4.6 - C++ programing - Libraries to use GLFW, GLAD, IMGUI - Visual Studio project 2019 - The app must be a only windows aplication - Use advanced optimization methods like bvh ■ What should the application do? - Draw shapes: Points, lines, line string, closed polygons, texture load - Edit shapes: Move vertices of created shapes - Select shapes - Grouping system - Layer system - Ortographic camera like google maps (pam and zoom movement) - Support to load/edit geojson file - Menu for: settings, lines thickness, layers colors, transparency ■ Files to be delivered - Visual Studio project 2019

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    Atmasampanna 6 días left

    Need to create frontend and backend of the E-commerce webapp. The project may last for a long duration of time. Participants might get a chance to be involved in the production phase.

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    Need React Native Developer 6 días left
    VERIFICADO

    Need React Native developer to work on monthly rates Front End React Native Developer Frameworks: • React-Native • React • Unity • Angular • GITProgramming Languages: • Javascript • Typescript

    $397 (Avg Bid)
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    React TypeScript Developer 6 días left
    VERIFICADO

    We are looking for a React TypeScript Developer. Your primary focus will be the development of the Front End end of websites using the latest technologies and standards with React, TypeScript, Styled-components, and CSS. We are a team of developers, and have mostly have clients, and some internal projects. The developer that get awarded this project will have continued work, without an end date. The developer must also have a good Internet connection and be comfortable working on a remote desktop application, like TeamViewer. The interview process will consist of taking tests to gauge your experience and cognitive ability. The rate of pay will be based on the test scores and level of experience. Minimum hourly rate can be $20/hr but can be much higher (perhaps double) based on ...

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    I am looking for a Full Stack developer with experience in the gaming (Gambling) industry for a long-term and FULL times 40-45 hours a week, the person must have a great experience in PHP, HTML, CSS, Bootstrap, Tailwind CSS, Laravel and Vuejs, ***THIS IS A FULL-TIME AND LOGN TERM JOB ONLY. YOUR PRICE MUST REFLECT A FULL-TIME JOB***

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    * Home page of educational institution, showing what fields can be studied in this institution. * Dashboard to manage the things that can be displayed in each section of the fields. For example, you can study b.a engineering so there will be a page showing info about it, and the dashboard can control what sections will be in that page (e.g text, video, pictures, file...) * we will need to add secured online payment. * Search field. * Host the website on existing domain. * SSL website The website needs be: - RTL - Secured - Firebase - ReactJs - Material UI - Mobile and desktop responsive

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    I want to make affiliate ecommerce website with high level security and fastest load time.

    $429 (Avg Bid)
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    Hello, We are looking to hire React.js and Grails(web app framework) expert today. we use React/JSP on the FE, and grails on the BE. To start with easy tasks, I will assign the tasks on the frontend(React.js) first. If you're familiar with Java or Ruby on Rails, Grails framework will also be easy to work on the project. It's an exciting opportunity for an experienced developer who is looking for a new challenge with a fast-growing startup targeting the fastest-growing region in the world. The position is on a contract basis for 6+ months, on a milestone basis with the option to potentially become a full-time team member.

    $2645 (Avg Bid)
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    Looking for a experienced Middle+ Full – Stack Developer. Ukrainian developers preferred! Project Description: 3 months project to help a start-up launching their product. Tasks: • Development of new and maintenance of current functionality; • Participation in the full software development cycle; • Solving current tasks Key Requirements: • 4 years of experience as a Full - Stack developer; • Excellent knowledge of ReactJS, NodeJS; • Good knowledge of Typescript, ; • Experience in developing and refining mobile applications

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    Hello, dear Freelancer.com community, We have operated an active Laravel/Angular/React app builder drag & drop system platform since 2020 that needs continuous development in the coming weeks. The platform runs via Laravel (PHP) as the backend and uses Expo as an API service. The front end uses Angular.js and React. Project details include: - upgrading Expo Cli - developing cronjob scripts - developing new features - new API interfaces (e.g., upgrade Expo CLI version) - bug fixes You need skills in these areas (full-stack developers preferred): – PHP – Laravel – HTML, JavaScript and CSS – Angular.js – MySQL – Git / GitHub (– Swift/Kotlin/Java/React) With pleasure, we can exchange ideas and details :) Thanks a lot! Best regard...

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    Hello Freelancers, I need someone who has experience in React Native to fix bugs in the application. Bug Fixes 1) The main issue is that whenever you clicking a button to change the channel an api hitted and response took some time , meanwhile if you are hitting the button multiple times , the api is unable to handle the response 2) Add Loading ICON Need someone who can fix this today - Dont bid if you cant start immediately Please MENTION "REACT" in your bid to be considered valid

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    Hi All , I have a client who need Full time dedicated resources of following tech stack Frontend Developer - 2 Resources Angular.js React.js HTML/CSS Javascript PHP Backend Developer - 3 resources Node.js MySQL Contract : 3 months Project Start Date ; 1 -2 weeks NOTE : I need Full Time Frontend + Backend Developers . Please apply with your CV in WORD format

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    Looking for a experienced Senior Frontend Developer for a long-term project. You will work with a team of international experts for this project. Tasks: • Developing new user-facing features using React.js; • Building reusable components and front-end libraries for future use; • Translating designs and wireframes into high-quality code; • Optimizing components for maximum performance across a vast array of web-capable devices and browsers Key Requirements: • Strong proficiency in React.JS; • Typescript; • HTML, CSS/SCSS; • ViteJS (or understanding of similar tools, e.g. Webpack); • Test driven development with Jest; • Git/CircleCI; • Experienced in web app development with AWS; • English (or German) fluent at level B2 or better ...

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    I need to create a web portal exactly like "" there, I have included a video of the requirement (the Video is in the Hindi Language). Apart from this, I'm looking for a long-term collaboration I do have a couple of more projects which required a developer with the same skills.

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    Help me to understand how to speed up the development server react when i run yarn dev, before it would take 2 sec now can be 3 give me some example to find the issue as an example

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

    Destacado Sellado Acuerdo de Confidencialidad
    React.js Website Developer 6 días left
    VERIFICADO

    Need a react.js developer to design my website in 2 days

    $171 (Avg Bid)
    $171 Oferta promedio
    156 ofertas
    Full stack developer from US 6 días left
    VERIFICADO

    LDI-MAP is a growing fintech company dedicated to building innovative software solutions that are disrupting the retirement plan industry. In the Full-Stack Developer role, you’ll be responsible for building cutting edge, data analytics-driven software that empowers financial Advisors, and facilitates better retirement outcomes. By joining our team you will become part of a tight-knit group that is hungry, full of knowledge driven to succeed. As a team player you will adjust quickly and your depth of experience will provide insight that will help spearhead the evolution of our system architecture. This is a fully remote position that allows you to work from home. We mostly use Python/React, storing data in MySQL and PostgreSQL. Tell us about your experience with recent projects(Pre...

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    See video in attached link. Tell my why you can build this and send samples to look at. Experts only. Must have a Bachelors degree. You must have 5 or more years of coding experience. Send me samples of your work that are close to my project, such as a CAD viewer or Graphic viewer you have built. Make 3D Viewer program for 3D Graphics and CAD Drawings. The HTML viewer will have lists, menu's, hot spots, hyperlinks, navigation to different scenes, etc... It will create the CAD presentation into an HTML file. It must be able to handle files from Blender Graphics, CAD Graphics, 3D Graphics, 360 Images, and 2D images. It must also work with eDrawings viewer. The program needs a place for me to store a bank of graphics with sound that can be used for effects when a user completes a tas...

    $2500 - $5000
    Sellado
    $2500 - $5000
    42 ofertas

    Design of the particular UI will be provided in the form of figma link, you can utilise it. design should be exactly same as provided by figma link. link will be shown to you in chat. initially i want to testify the quality of the work so, rest of the screen will be given for project will be next part.

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    React Native Developer needed -- 2 5 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.

    $282 (Avg Bid)
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    16 ofertas

    Desenvolvimento de plataforma para um público específico.

    $539 (Avg Bid)
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    21 ofertas
    React and Threejs Canvas Project 5 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...

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    NFT play2earn 5 días left

    Innovative NFT play2earn game on the WAX blockchain

    $20 / hr (Avg Bid)
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    28 ofertas
    Next.js, WebRTC and Web Workers 5 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...

    $1856 (Avg Bid)
    Acuerdo de Confidencialidad
    $1856 Oferta promedio
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    Frontend developer - React.js 5 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.

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    Principales artículos de la comunidad React.js