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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    271 trabalhos encontrados, preços em EUR

    Preciso de profissionais para o desenvolvimento de um MVP para uma statup em Curitiba. Eai? Vamos mudar o mundo?!

    €21 / hr (Avg Bid)
    €21 / hr Média
    29 ofertas

    i need help reviewing my work consisting of components useState useEffect json and building a fitness app, using React.js. i will provide more details in the chat.

    €64 (Avg Bid)
    €64 Média
    7 ofertas

    This project is an already existing one which is built in react.js and .net. So please understand that the existing code needs to be looked upon, analysed and cleaned up to make the functionalities work as in the provided design. You will have to build any missing functionalities(which I will explain) from the design. Since this project is hosted on a remote machine, please understand that you’ll have to work through a Remote Desktop. Bid only if you’re happy with it.

    €118 (Avg Bid)
    €118 Média
    6 ofertas

    have a mobile app where people can share videos and photos. I want to create a web app that allows people to upload videos and photos on the web app. I want the mobile app and web app to be connected. I am also interested in adding livestreaming into the web app

    €162 (Avg Bid)
    €162 Média
    3 ofertas

    This project is an already existing one which is built in react.js and .net. So please understand that the existing code needs to be looked upon, analysed and cleaned up to make the functionalities work as in the provided design. You will have to build any missing functionalities from the design.(designs will be provided) Please note that the project has been hosted in a remote machine, so only bid if you are happy to work on a remote machine rather than your local system. It does have a restricted timeline of maximum a day so please keep in mind about that when you bid.

    €19 (Avg Bid)
    €19 Média
    1 ofertas

    Hi all. I am looking for a React-based Front-end developer to build a simple mint page for an NFT launch. We have the mint button and functionality built, we just need the front-end to make the website look good with our landing graphic and logo. We are on a very short deadline, so would be looking to start immediately.

    €465 (Avg Bid)
    €465 Média
    30 ofertas

    design a custom Professional modern SaaS website

    €177 (Avg Bid)
    €177 Média
    1 ofertas

    I'm looking for a Three js / WebGL developer or a team for a web based virtual 3d project. Please feel free to share if you have done any similar projects like this before We are looking something similar to this website, but with muti user capability using firebase. We have a working prototype to use Firebase as the serverless back-end service for multi-user feature. Technical requirements / Skills -------------------------------------- * Java script * Firebase, real-time database * Webgl/ Three js - Terrain creation, character animation * sso login integration. * Unity or similar platform

    €32 / hr (Avg Bid)
    €32 / hr Média
    34 ofertas
    reactjs expert 6 dias left
    VERIFICADO

    this is feature to update a message's property in chat message list

    €11 / hr (Avg Bid)
    €11 / hr Média
    22 ofertas

    In my website, I want a landing page similar to the one on that website some graphs and some details about the business, I also want to display the pricing on the page, Apart from that I want a login/register page, one popup to display T&C and some policies, Once the user logs in I want a dashboard to display their current market value with some graph and some numbers and a page to edit their user info

    €122 (Avg Bid)
    €122 Média
    29 ofertas
    React Login Page (ASP.NET MVC) 6 dias left
    VERIFICADO

    NEED IT BY TODAY. I have a very small demo project for which I need a login Page built on asp.net mvc framework. Login page is already built (/login). Need that to be the home page make make the user login

    €24 (Avg Bid)
    €24 Média
    11 ofertas
    SignIn Page Redesign 6 dias left
    VERIFICADO

    I'd like to redesign a SignIn page which was built by React/MaterialUI. This is urgent task so don't bid if you have a relevant experience.

    €27 - €221
    Secreto
    €27 - €221
    63 ofertas

    Application development requests from various clients ranging from Banking Sector to Restaurant chains. Looking for a Senior Front End dev to work with on these projects. Message me directly for discussing remuneration after a small code test.

    €693 (Avg Bid)
    €693 Média
    70 ofertas

    I am looking for a full stack developer to work on an ecommerce website in Laravel / MySQL. Designs are all done - frontend will need to be coded in react.js and has to follow strict guidelines for Google Core Web Vitals. You will need to setup a dev server and a production server with bitbucket and CI. A proper process needs to be followed for any code that is deployed. CMS for backend includes various modules of ecommerce website. The website will be selling pet supplements and will have features such as coupon codes, rewards, customised recommendation of products. The budget is fixed and more detailed specs will only be provided to shortlisted candidates. Thank you. Project timeline is 6 weeks. Just to avoid confusion this is a full website development project - frontend and backend...

    €2025 (Avg Bid)
    €2025 Média
    135 ofertas
    React Js developer 6 dias left
    VERIFICADO

    React Js front-end developer, familiar with Django backend

    €86 (Avg Bid)
    €86 Média
    43 ofertas
    Django Backend developer 6 dias left
    VERIFICADO

    Django Backend developer, also familiar React js.

    €97 (Avg Bid)
    €97 Média
    24 ofertas

    I'm looking for a really good React Native developer. Currently I need someone to: 1. Integrate Mapbox, Google API. 2. Update UI/UX code 3. Monitor and Fix bugs Blockchain node api experience is a big plus. Experience with Stripe would be helpful as well. I can provide additional information as needed.

    €185 (Avg Bid)
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    19 ofertas

    Looking for twitter and discord api

    €23 (Avg Bid)
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    1 ofertas

    Hello, Freelancers We are a start-up software company. We are looking for a senior full-stack developer for a long term collaboration year and year. Our hiring process will be done by a technical interview and a small test task. Availability(Mandatory) - Mon ~ Fri 8:30 AM ~ 6:00 PM (CET) Technical skills: - Frontend Vue.js, React.js, HTML, CSS, JavaScript - Backend PHP, Laravel, Node.js, Express JS - Database MongoDB, MySQL, PostgreSQL Note: If you are not able to do the test task, please don’t apply to this job. We will pay for the test tasks passed. Looking forward to hiring the best candidates. Thanks

    €12 / hr (Avg Bid)
    €12 / hr Média
    59 ofertas

    For my e-shop, which runs on react and node.js, I need an application that removes or replaces the background after uploading the image.

    €987 (Avg Bid)
    €987 Média
    32 ofertas

    I have a mobile CRM app built in react native and node.js I want to build a web app for the mobile CRM in react.js, the developer will be responsible for creating the front end in harmony with the mobile app and integrating API

    €107 (Avg Bid)
    €107 Média
    5 ofertas

    Please check the below screenshot and let me know if you can fix it. It's showing a blank screen and doesn't work. but It's working well in dev mode. The target is just to make the app released on windows working. My budget is max $30. Don't apply if you require more money. Please bid if you are expert.

    €22 (Avg Bid)
    €22 Média
    7 ofertas

    Why you should work with us: As a senior engineering hire, this position offers huge potential for growth, and generous equity You will work closely with the founders to define technical and product vision. Over time, you will establish yourself as a leader in our growing team and user community, whether through management or expert-level individual contributions. Help solve cloud authorization and access for multiple classes of organizations and users. Build greenfield features and make key technical decisions that go live in days. What we are looking for in a Team Mate You are able to work with a 4 hour overlap in the Pacific Time Zone (From 6AM to 5PM Pacific Time) You are competent with source control in Git. You use issue trackers and other worthwhile processes to get more meaning...

    €16 / hr (Avg Bid)
    €16 / hr Média
    13 ofertas

    I have problem with website , i can not configure the log in page .. Need someone ReactJs

    €22 (Avg Bid)
    €22 Média
    22 ofertas

    I need a web3 developer with javascript, react and CSS as the main specialization.

    €296 (Avg Bid)
    €296 Média
    5 ofertas

    Hi, I want a complete website in NextJS, NodeJS, and MongoDB. It has to be a CMS marketplace. The product itself is simple (no categories, no images). The marketplace itself has to be just a simple table view. For payments, we will use Escrow.com and use their API. There has to be an admin panel and a seller portal. I have a 15-page document where I state everything I want. I'm also looking for someone with some expertise in design since I'm not good at it. I'm a developer myself so I will do the final touches myself. I just want the website to be 98% ready. Please read the document carefully. Thanks in advance. Regards,

    €3931 (Avg Bid)
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    28 ofertas

    Hi everyone, greetings I am looking professional web developer who can build website same like by using MERN Stack technology with modern look. Please contact me urgently if you are able to build such type of website by using MERN Stack. please note that its not one page website so I oblige full team who can complete this project. Regards

    €4735 (Avg Bid)
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    29 ofertas

    To create performance assignment

    €14 (Avg Bid)
    €14 Média
    6 ofertas

    Need a React.JS application that should work as a web, Desktop app and as mobile app. The application is mainly to display the videos of CCTV cameras. The application should receive events from the server and display them. Further details shall be shared in future discussions.

    €637 (Avg Bid)
    €637 Média
    11 ofertas

    1. It's a SAAS . Need function like online booking from various stores (Store appointments or home appointment from stores) . Customer can search nearest store , select services and book appointments . 2. Store Owners gets completed sales data of stores . also need functions like Attaindance , Billing , Staff name etc

    €13 / hr (Avg Bid)
    €13 / hr Média
    19 ofertas

    I have a PSD Template. Develope this native Android Application & Its Website

    €151 (Avg Bid)
    €151 Média
    13 ofertas

    A live-Streaming platform for Multi-Merchant builds on the PWA framework. This includes full-stack development of the front-end and backend. Interested developers should contact me to discuss the scope of work in detail. I like to have developed to be finished within 4 months.

    €2564 (Avg Bid)
    €2564 Média
    26 ofertas

    I have a mobile CRM app built in react native and node.js I want to build a web app for the mobile CRM in react.js, the developer will be responsible for creating the front end in harmony with the mobile app and integrating API

    €98 (Avg Bid)
    €98 Média
    7 ofertas

    No Agency We are hiring react developer with more than 2 years of experience. Must be proficient. This is a full-time opportunity. After covid location will be Pune India If you are interested message with you resume

    €308 (Avg Bid)
    €308 Média
    5 ofertas

    Build me events scheduling calendar in react js using hooks

    €14 (Avg Bid)
    €14 Média
    3 ofertas
    React Developer Needed 6 dias left
    VERIFICADO

    I have an idea for my blockchain project. For this I am going to hire react developer. If someone interested in this, project, please contact me.

    €455 (Avg Bid)
    €455 Média
    39 ofertas

    We are looking for a team to create the NFT website in less than 5 weeks and using REACT for he main landing page. I have a few ideas and it goes hand and hand with this.. If you cant do work like that link then please don't even apply.

    €4370 (Avg Bid)
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    29 ofertas

    YOUR BID PRICE IS FINAL## NO LATER CHANGE IS ALLOWED## I DON'T DEAL OUTSIDE FREELANCER## PLEASE WATCH THE ATTACHED VIDEO FIRST I need an experienced programmer who can build me an interactive worksheet system where users can register/login and then can upload files of docx, PDF, JPEG, PNG system to make interactive worksheets as per the attached video. Features like adding image, short answer/long answer box/drop down/radio/adding image, hyperlink, audio, video, comments in particular place, preview etc to be there. It should also have auto-checking and scoring system and sharing in Soc ial media system as well as email sending system. Each worksheet created should have unique URL for sharing. I need full source code, co pyr i g ht and installation in my shared linux server. Code shou...

    €77 (Avg Bid)
    €77 Média
    3 ofertas

    READ BEFORE YOU BID ***YOUR BID PRICE IS FINAL. NO LATER CHANGE IS ALLOWED.***YOU CAN USE OPEN SOURCE CODES Hi I need an experienced programmer who can build me a web app for recording screen along with Audio and then let it play on the web, take notes in the video and then let it download. The simple workflow to be: Create Two types of User login/registration system with email verification: 1. Client 2. Web Tester.. Client login will have username, email, password. And then client will have the option in his dashboard to Add his domain, description of website and requirements in question format with option to provide answers in radio, drop down, multiple choice and text box along with condition logic. Tester login will have the username, email, password and inside their dashboard will h...

    €115 (Avg Bid)
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    2 ofertas
    React Expert 6 dias left

    We have the small next project and then should change some part in customer page. You should have rich experience for reactjs and, for next is strong plus. some node skill will be needed. please apply.

    €171 (Avg Bid)
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    15 ofertas
    Need a react developer 6 dias left
    VERIFICADO

    A react developer is required to build mobile app

    €225 (Avg Bid)
    €225 Média
    7 ofertas

    We're looking for a strong team member to join our mission to bridge crypto payments into the retail space. Let me know if you're open to discussions, and feel free to reach out to me

    €20 / hr (Avg Bid)
    €20 / hr Média
    18 ofertas

    Hello, I have a small project to stake the NFTs. I'd update the components and add new features in the site. I am. looking for the react.js developer with more than 2 years experience. Best regards, Kurt

    €170 (Avg Bid)
    €170 Média
    54 ofertas

    integrating classes Django + React Js app.

    €32 (Avg Bid)
    €32 Média
    15 ofertas

    I am looking for someone to assist me with creating a Flow Designer React App. You will work with me on the code. I have been a developer for 20 years myself. I will create the backend code and some of the business logic and you would concentrate 100% on the UI aspects on the application. You will create UI that allows you to drag and drop controls from a list and put them onto a canvas and show the connections between the items you dropped. See attached image for an overall idea of what you would be designing. All the color boxes like "Request", "XML Validation", "Transform XML", "Condition", "IF YES" and "IF NO, DO NOTHING" would have been dragged from a control pallet onto the canvas and the arrows show the connection. The ...

    €18 / hr (Avg Bid)
    €18 / hr Média
    46 ofertas

    Need a React dev who focuses on preventing unneeded rerenders.

    €18 / hr (Avg Bid)
    €18 / hr Média
    65 ofertas

    Hi Im looking for 2 React developers For this task you will go thru the app and observe rerender issues. Mainly you would fix using useCallback and useMemo. But the idea is to get rid of all useless rerenders Be prepared to be quizzed on your ability. No amateurs, and again no teams

    €19 / hr (Avg Bid)
    €19 / hr Média
    32 ofertas

    Hi, Freelancers I need nft market place similar to OpeanSea. If anyone can do this, feel free to contact to me. I'll discuss more detail via chat. Thanks.

    €34 / hr (Avg Bid)
    €34 / hr Média
    25 ofertas

    Include "Happy new year" in the proposal , then only I will consider ! You should know web3 You should be proficient at react need to make a similar platform like this - you should have knowledge of blockchain you won't be writing any solidity code you just need to make front end and integrate it with the contract .

    €301 (Avg Bid)
    €301 Média
    7 ofertas

    Hi, A customer of mine is a Webex Meeting's user. He complains that the conferences are not secure and that participants can send the conference link to someone else. This client has a Wordpress site. So, we would like to integrate the Webex session into a private Wordpress page of the site. Then, users would log in through WP, to access the page and automatically access the Webex session. Do you think there is a way to do it? Which one? Thanks Gil

    €526 (Avg Bid)
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    31 ofertas

    Artigos da Comunidade dos Principais React.js