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.

Conforme as 264946, avaliações, os clientes avaliam nossos React.js Developers 4.85 de 5 estrelas.
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    150 trabalhos encontrados, preços em USD

    Need web designer and developer with more then 6 years of experience. Need web developer to work on chef booking website in React, Node.js, express. js . Website need to make it mobile responsive and integrate with payment gateway and GPS google map. It need multi language and currency feature. Website need to be for chef and customer side with dashboard. Content need to be upload through admin panel that point to storage server and not on the website to avoid heavy. Developer need to optimize the site to make it light

    $1121 (Avg Bid)
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    79 ofertas

    Need help with a preexisting react web application Need to add some new features and refactor existing code. I want to change react redux to react context and react reducer.

    $418 (Avg Bid)
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    62 ofertas
    React js developer -- add graph 6 dias left
    VERIFICADO

    React js developer add chart or graph, logic.

    $22 (Avg Bid)
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    12 ofertas
    React.js - Custom Sales Process 6 dias left
    VERIFICADO

    READ THE FOLLOWING DESCRIPTION - THE PDF HAS MORE DETAILS AND SCREENSHOTS 1) Customer Picks a Picture Template 2) Customer Selects options based on a few categories (each impacts the price of the item) 3) My team creates the custom images 4) My team sends an email to the customer 5) Customer should open up to a 'cart page' 6) Customer can then approve and pay I'm open to using Square or Stripe for handling everything from payment to inventory/pricing

    $179 (Avg Bid)
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    29 ofertas

    Integrate React Google Map box Autocomplete feature and Map using google Map api in React JS web app

    $158 (Avg Bid)
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    38 ofertas

    React js frontend Homepage, contact us and about us

    $29 (Avg Bid)
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    11 ofertas

    Hi, web developers. I am a founder of software development and management community and have 4 projects(two of them are running and others on development) The biggest project is gambling site which is on development and we meet a issue for now. We hope to add social media links to our site, but nobody knows about it on our team. I will provide you more details in chat. I am waiting for your response. Thanks

    $150 (Avg Bid)
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    32 ofertas

    I'm looking for a photoshop plugin developer using UXP developer tool. Automatic bids or none experienced developer will be ignored.

    $509 (Avg Bid)
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    20 ofertas
    Simple React Map App 6 dias left
    VERIFICADO

    I need to create a simple React web component that can work with Google maps. Must work on mobile devices. You can use "@googlemaps/react-wrapper" Pls read the spec. bellow.

    $176 (Avg Bid)
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    51 ofertas
    Looking for a react developer 6 dias left
    VERIFICADO

    Looking to make several updated to checkout process. All the changes are outlined in the attached word doc. Wireframes will be finalized shortly.

    $31 / hr (Avg Bid)
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    98 ofertas

    Need to develop budget management system. Let's discuss in detail via chat.

    $49 / hr (Avg Bid)
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    19 ofertas

    Hello, I am looking for someone with experience in React and TypeScript (ideally Material UI). The work would be to maintain and bring to high standard a rather small code base that is growing rapidly, and ensures the website is dynamic for all screen sizes. Please provide your own improvement ideas for both the website features and code maintenance. I will provide my code base and discuss more detail with the right candidate. Only a personalized application will be considered. Thank you.

    $482 (Avg Bid)
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    51 ofertas

    We are looking to hire a talented Full Stack Developer with React and ruby on rails experience to manage the interchange of data between our users and the server. You will be responsible for developing and maintaining the clients and server-side logic from the central database, BDD testing with RSpec, testing performance, troubleshooting, and integrating front-end elements into the application. To ensure success as a in this role, you should have extensive experience working with React, Ruby, Ruby on Rails and back-end integration techniques. Ultimately, you will be expected to to create clean, functional code that perfectly suits the needs of the users. Ruby on Rails Developer Responsibilities: - Designing and developing new web applications. - Building and Maintaining REST APIs. - M...

    $550 (Avg Bid)
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    36 ofertas

    I am seeking a frontend React developer to help me with various pieces of my code that I am unable to complete (I'm barely a beginner React developer). The work will be on-going but in small projects. All work will be done via screenshare sessions (you can have control of zoom). The project is live now and can be seen here: we are using a React template that is quite thorough. To understand if you are a good fit for the on-going project I have outlined a task that is indicative of the work below. I expect this task to take 30-45 minutes (paid). The task is help adding in a % delta into rows of a MUI datagrid component that pulls data from our Supabase backend. The % difference should be for the most recent timestamp in an array, take the linkedin_jobs value. Then subtract that...

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    54 ofertas
    need react.js expert 6 dias left
    VERIFICADO

    I need a expert for the react and vanilla js. Do not bid if you don't have experience with js.

    $12 / hr (Avg Bid)
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    66 ofertas

    I want an beautiful looking website having around 200 pages like an e commerce website

    $310 (Avg Bid)
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    29 ofertas
    vlc Player in asp.net 6 dias left
    VERIFICADO

    I want to play my rtsp url in VLC player in asp.net .. On Desktop vlc my url working fine i want to see same on webpage

    $108 (Avg Bid)
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    9 ofertas

    I have Time Tracking SaaS website. I need Windows & Mac application that will track work time. Similar to competitor: App must be written in cross platfom ElectronJS. Must be able to take screenshots, count keypressed and mouse movement. All requests will be made to my service by already made API. Some features: - when clicking start - app sends API request to my API - when clicking stop - app sends API request to my API - when work is started app makes screenshots of opened apps every X minutes and sends files by API (proof of work) - when work is started app counts number of key pressed in every minute and every 10 minutes sends reporto by API to my server - when work is started and in 5 minutes there is no key pressed or mouse moved - app send information to API Please bid onl...

    $20 / hr (Avg Bid)
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    54 ofertas
    Music concert ticket sale 6 dias left
    VERIFICADO

    Hello, for a client who organizes music concerts, about 1 per month, we need to develop a website where those online concert events can be created and managed. Customers should be able to buy these tickets online and get the ticket online as QR code, which they need to scan at the concert for verification. The location is always the same. This is NOT a marketplace with multiple hosts. It is always the same concert location. Features: - Standard checkout form - Digital or printed tickets - Mobile tickets - Registration and event management - Ticket management - Analytics - Payments (Stripe, Paypal) - Refunds - Verification that the ticket is real at the concert location As far as the tech stack goes, I'm open to suggestions.

    $38 / hr (Avg Bid)
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    74 ofertas

    We are looking for MERN Stack developer, who can lead our projects and team. It will be a long term commitment. We are looking for someone who has proper work ethics and attitude. Professionalism is as important as your skill set. Projects details will be shared with selected candidate.

    $630 (Avg Bid)
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    59 ofertas

    Smart city which consists of three modules which are fire detection, pothole detection and traffic management are to be integrated in a webapp/website/app

    $314 (Avg Bid)
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    8 ofertas

    Intervento di aggiunta funzionalità e bug fix su un gestionale per la gestione del personale realizzato utilizzando React per il Front-end, Strapi per il Back-end e MongoDb

    $1048 (Avg Bid)
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    57 ofertas

    I need a restaurant website which consists of web pages of feed restaurant customer reviews contact page etc..where the famous food items will be and should have registration page where users can login and sign up.

    $217 (Avg Bid)
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    69 ofertas

    Hello freelancers We are looking for a Senior React Native Developer. This is a long-term position for senior developers. Please send us a self-assessment of your experiences with ALL responsibilities and requirements below. We hire you based on your very detailed and accurate answers. We want to see 5 accurate answers in your bid. Questions: 1- Building intuitive and user-friendly features for mobile ( React native and Desktop ( React) 2-Technical Feasibility Design 3- Optimize to maximize performance scalability 4- Perform UI and API testing 5- Build libraries and frameworks that support complex web applications, speed up development efficiency, and improve code quality Required - 1-year Developing Production code - Strong knowledge of React JS - Postgres, NodeJs, ReactJS After chec...

    $35 / hr (Avg Bid)
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    66 ofertas

    Hi All, I'm looking for a dev to implement a feature onto our platform. The feature we require is essentially a text editor (similar to a word doc) where functionality such as: - font adjustments both size/colour - bold, italicise, underline etc - the ability to export the text in PDF/DOCx (word) format. The requirements for this role are: - JS React - Stripe - Firebase Please only reach out if you are confident in the above areas and if you are successful on this initial task, there will be a high volume of opportunities for you to continue improving our UI. Thank you beautiful people!

    $15 / hr (Avg Bid)
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    104 ofertas

    hello freelancer We are looking for a Senior React Native Developer. This is a long-term position for senior developers. Please send us a self-assessment of your experiences with ALL the responsibilities and requirements below. We hire you based on your very detailed and accurate answers. We want to see 5 accurate answers in your bid. Responsibilities - Building intuitive and user-friendly features for mobile ( React native and Desktop ( React) - Technical Feasibility Design - Optimize to maximize performance scalability - Perform UI and API testing - Build libraries and frameworks that support complex web applications, speed up development efficiency, and improve code quality Required - 1-year Developing Production code - Strong knowledge of React JS - Postgres, NodeJs, ReactJS

    $32 / hr (Avg Bid)
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    67 ofertas
    School Management Software 5 dias left
    VERIFICADO

    i want to develop a school management software, but i will need a demo design to show and present to the client

    $33 (Avg Bid)
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    35 ofertas

    I need a betting site that allows me to enter betting odds and other people to bet on them using our crypto. Must be able to use all skills in the requirements. If you can not do this, do not apply. If you dont have anything to show that you did this before, do not apply. If you ask me my budget instead of bidding, do not apply.

    $748 (Avg Bid)
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    69 ofertas

    I don’t want to keep bothering you because i understand you’re a busy person and probably have a lot of projects. So let’s say i started all over i think the confusing part is to know if I should start all over or build on top of what i currently have, like be honest with me does bubble have the capacity to build all the features I need or could my website handle all of the features I need, so please be truthful with me and let me know what you think is the best route to go. So would it be better to start all over or build on the site I have and how much for both options This is what I want… Marketplace website buy and sell. I want the front page to display a category of devices and as you click on the devices it will open up more and more pages until it filter...

    $7872 (Avg Bid)
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    68 ofertas

    We need a login page that uses Google Identity Platform service The login page will validate user is registered and will only use Google sign in option for validation. If user is not registered it will register user, add to registration group, and redirect to IAP secured waiting page while resources are created. If the user is registered then will redirect to IAP secured page which will check if user is associated with specific cloud group. If user is not part of specific cloud group then it will add to registration group and will redirect to IAP secured waiting page while resources are created. Point is to have secure auth flow using Google Identity Platform, Cloud Groups, and IAP. here is the frontend webui

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    58 ofertas

    I have started a project written in React and I need unit tests for some components, using Jest.

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    13 ofertas

    This is what I want… Marketplace website buy and sell. I want the front page to display a category of devices and as you click on the devices it will open up more and more pages until it filters out the exact device you’re looking for. (Look at photo and video below) Product search allows shoppers to easily find items by price, location, size, and other criteria and should have a feature that has a buy or sell tab. Auction feature for customers to be able to place bids (bidding feature) or have a buy it now feature so either the customer could do a buy it now option or auction feature and a make an offer feature. Clean admin panel (backend) An admin panel allows an admin to manage products on the marketplace and moderate auctions, users, bids, suspend and website conten...

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    71 ofertas
    E-commerce 5 dias left

    I would like to build an e-commerce website like Ebay () / (). Where the client can check the products and contact the owner of the product and the owner of the product can check the notifications and post new products etc etc. For more functional and non functional requisite please check those 2 websites and contact me for a meeting.

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    82 ofertas
    React or Angular Project -- 2 5 dias left
    VERIFICADO

    I have some clients that need a way to import, edit, and export data. I’d like to offer them a User Web interface to Import csv, iif, xml, and xls files into a database, (really easy to decipher each). Edit records with rule matching and inline, then export csv. User authentication and export limits. I have a detailed outline to keep the guesswork to a minimum, which will save on time/cost

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    98 ofertas

    I need to change layout and add google maps pin to 6 different pages when the button is clicked. I have code done already which I will share with you If interested.

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    58 ofertas

    I need someone help using Highcharts ghant chart and just redesign it I am okay to negotiate the price

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    25 ofertas
    React js redux develoepr 5 dias left
    VERIFICADO

    Need to give demo via anydesk on my system first

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    10 ofertas
    React Expert 5 dias left

    Need only experts for react.js. I need 4 pages to be built with react.js. 1. Home Page: use page 2. Gallery: use attachment and 3. Contact: use attachment 4. Technical Specification: use page (copied from the home page) The following home page details that must match: a. Snap to grid when scrolling down b. Color of Boxes c. How the "Order Now" Box disappears then re-appears when scrolling d. Image Fixed and Center while resizing page e. The Font, size, color, placement. and style The following details that must match: a. The Font, size, color, placement. and style b. Every video box, photo box, and text in the exact same places. using the same colors and font sizes Gallery page: a. the simple gallery page will open as a popup and will have the images on the side, b. to cl...

    $249 (Avg Bid)
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    75 ofertas

    Must be an expert with React. Must finish this 24 hours from now. Budget: $100 for 4 pages. ( If you are asking more, Don't Bid ) What are we looking out for: Clean typed code Good folder structure Attention to details Speed I want you to build 4 pages with react.js 1. Home Page: use page 2. Gallery: use attachment and 3. Contact: use attachment 4. Technical Specification: use page (copied from the home page) The following home page details that must match: a. Snap to grid when scrolling down b. Color of Boxes c. How the "Order Now" Box disappears then re-appears when scrolling d. Image Fixed and Center while resizing page e. The Font, size, color, placement. and style The following details that must match: a. The Font, size, color, placement. and style b. Ev...

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    35 ofertas

    Build an event scheduler in Reactjs. I already have a scheduler built using React and DevExtreme scheduler. I want its performance to be improved or build a new scheduler with all the required features. I'm Looking for a React developer with expertise in building schedulers. Detailed job description is available in the attachment

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    77 ofertas
    Laravel / React JS Developer 5 dias left
    VERIFICADO

    We are looking for two developers to work full time to help deliver our web application which is built on php and React JS. We are looking for experienced developers who take a lot of care in the quality of the code they develop. Ideal candidates will have worked in an fully agile, ideally way using JIRA. They will be expected to work with at least one other developer who will also be remote. We will manage the requirements/development process etc. The code will all be reviewed by our Head of Development before being accepted. Out application is relatively simple but we will looking to integrate with the following: A chat system - possibly Pubnub An email system - possibly Twilio Notification system - TBC None of the above have been confirmed though so we are open to other options. Any ...

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    113 ofertas

    Hi, I am a car dealer and I need classified ads and auction to sell my cars on my website. Responsive design is required. Also need a page where my customers can book time for car service, oil change, car wash or tire change. Basic car's data will be collected through an API from state's official page. for example, car year, model, diesel, petrol or electric, first time registration date. I would require an expenses system where I can enter the price to buy the car and also enter the price to sell to see how much I am earning. Should be a filed for other expenses as well, like if i fix the brakes for 1000,- Admin panel - Add a new car listing, either auction or normal classified fix price. - Register a new customer or compnay. Customer can signup on his own as well. - ...

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    186 ofertas
    Firebase Authentication Expert 5 dias left
    VERIFICADO

    Looking for a Firebase Authentication Expert for Consultation and Integration to React.js Application

    $13 / hr (Avg Bid)
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    14 ofertas

    I want to integrate some advertisement on a small sports related website. You may need basic knowledge in: - Web Scraping - NextJS - MongoDB - React

    $19 / hr (Avg Bid)
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    12 ofertas

    Hi, how are you? our project was build by electon app. UI design was already completed. Now we need to integrate wallet function But metamask or other wallets are not integrating with desktop beccause they are chrome extension. So our plan is to generate wallet keys automatically using module and fetch to frontend. Please suggest me to work on our project. Thanks

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    34 ofertas

    I am looking for T3 stack developer To develop a social media MVP. Kind of Microblogging site

    $50 / hr (Avg Bid)
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    4 ofertas

    I am looking for a competent web developer to create a site between professional and creator. for more details contact me. based on react I want him to master the design to have a professional and beautiful website.

    $521 (Avg Bid)
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    206 ofertas

    i am looking for web developer who can convert figma design to react component.

    $4 / hr (Avg Bid)
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    49 ofertas
    MERN Developer -- 4 4 dias left
    VERIFICADO

    looking for a person who are full time MERN Developer and able to work remotely We will pay 500INR/per day just those people bid on this are able to do work remotely if you bid on this without reading it i will report your Profile

    $3 / hr (Avg Bid)
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    10 ofertas
    MERN Developer 4 dias left
    VERIFICADO

    I am looking for someone who fits all of these requirements. If you do not have experience in ALL of the topics below, do not apply. I am looking for a backend developer with good experience with: AWS MERN MongoDB MUI

    $10 / hr (Avg Bid)
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    161 ofertas

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