JavaScript is one of the most popular programming languages in the world. If you are looking for a website to be created with sophisticated interactivity or in search of an impressive mobile app, using JavaScript is the way to go. With the help of our expert Javascript Developers, you can bring your idea to life.

A Javascript developer on Freelancer.com can create dynamic web applications with extended features and improved user experiences. They can also design advanced gaming applications, develop cloud applications, and create powerful websites that work with less coding and low complexity.

Here's some projects that our expert Javascript Developers made real:

  • Developed interactive websites & apps with detailed user accounts experience
  • Created powerful applications that streamline complex data into actionable insights
  • Built custom Windows and Mac software designed to fit client specifications
  • Developed mobile apps that enables customers to access data from their phones
  • Connected databases to web interfaces with easy input/output functionality
  • Optimized existing code for faster loading pages and smoother user workflows

Javascript Developers on Freelancer.com know how to turn ideas into reality. They are experienced professionals dedicated to excellence and creating top-notch scripts that are easy to use, reliable and fast. If you have an idea but don’t know how to turn it into technical reality, Freelancer.com is the place to post your project. Hire our expert Javascript developers today!

Sur 696,793 commentaires, les clients ont évalué nos Javascript Developers 4.86 sur 5 étoiles.
Embaucher des Javascript Developers

Filtrer

Mes recherches récentes
Filtrer par :
Budget
à
à
à
Type
Compétences
Langues
    État du travail
    641 travaux trouvés au tarif de EUR

    I need a Quasar framework and Vue.js Cordova expert to help me current code I need rewrite my existing code with quality code then we will proceed next task for this app dealine today Skills and Experience: - Expertise in Quasar framework and Vue.js - Experience in creating web applications from scratch - Ability to work efficiently and meet strict deadlines - Strong design skills to bring my vision to life

    €7 / hr (Avg Bid)
    €7 / hr Offre moyenne
    4 offres

    I am looking for a freelancer to deploy a git repo on a server with PHP, JavaScript, and TypeScript. The server-side web application framework to be used is Laravel, while continuous integration will not be used in the deployment process. The successful candidate needs to be able to effectively configure a production environment in an efficient manner, as well as set up maintenance tasks, such as automatic backups and server security. Knowledge of Linux, databases, and other web-related technologies would be an asset. Expertise in git and version control is a must, in order to ensure a successful deployment.

    €135 (Avg Bid)
    €135 Offre moyenne
    23 offres
    Btc Flash Software -- 2 6 jours left
    VERIFIÉ

    I'm looking for a software developer who can create a BTC flash software that is compatible with Windows operating system. The software should have advanced level of user experience and must include transaction acceleration feature to speed up transactions. The ideal candidate should have experience in developing cryptocurrency software and should be familiar with BTC. Additional skills required for this project include: - Knowledge of blockchain technology - Strong problem-solving skills - Ability to create a secure software - Excellent communication skills If you have the skills and experience required for this project, please submit your proposal with relevant samples of your work. ready to use software's are accepted. transferable to 6+ wallets convertible split able suppor...

    €599 (Avg Bid)
    €599 Offre moyenne
    21 offres

    There is one option Material Requisitions in my app. ALL APi is ready. I have flutter project. running in my PC. there is one task incomplete of Json. Api data need to put. In one page all code is done just. one id is coming blank. Second one button need to update in same page. after completion. we will test. Need to build apk..

    €22 (Avg Bid)
    €22 Offre moyenne
    10 offres

    I want to use the API USE FROM to import all smart watch category into my I have the steps attached below I'd like 30% margin added to each product listing on my website. More details: What is the format of the product list from the 3rd party? JSON Do you have an existing import script or method in place? Yes, I have a script that needs updating Which platform is your website built on? Shopify

    €103 (Avg Bid)
    €103 Offre moyenne
    29 offres

    I need a Quasar framework and Vue.js Cordova expert to help me current code I need rewrite my existing code with quality code then we will proceed next task for this app dealine today Skills and Experience: - Expertise in Quasar framework and Vue.js - Experience in creating web applications from scratch - Ability to work efficiently and meet strict deadlines - Strong design skills to bring my vision to life

    €7 / hr (Avg Bid)
    €7 / hr Offre moyenne
    7 offres

    I have a custom (minimal) Wordpress theme, with front-end CSS changes I've made through a plugin called "YellowPencil", which are saved outside of the theme itself. I would like to take these added changes (CSS code), and add them into the theme files with the intention of ultimately removing the plugin. overall goal: * streamline code * code customizations have been made using a frontend plugin “YellowPencil”. id like to absorb these edits into the theme’s code. * consolidate edits * certain edits are page specific - can we make these drop down options as page styles? * reduce plugins * is there a way to incorporate the functions of calendar, tablepress plugins with the goal in mind to remove. * additional css and style edits * as detaile...

    €439 (Avg Bid)
    €439 Offre moyenne
    72 offres

    I am in need of a Laravel ecommerce website developer who can create a website based on my general idea for the design. The website will need to include basic features such as product listings and a shopping cart. I am looking for a developer who can complete the project within 1 month. Ideal skills and experience for the job include: - Proficiency in Laravel framework - Experience in ecommerce website development - Knowledge of HTML, CSS, and JavaScript - Understanding of database management and integration - Ability to create a responsive and user-friendly mobile friendly website design Example:

    €140 (Avg Bid)
    Garanti
    €140
    1 propositions
    Update Website 6 jours left

    I am looking for a skilled web designer to update the design of my website. The primary goal of this update is to modernize the look and feel of the site. I have a rough idea of what I want, but I am open to suggestions from the designer. The timeline for this project is flexible, with a deadline of within 6 months. Ideal Skills and Experience: - Strong background in web design and development - Experience in modernizing website design - Proven ability to create visually appealing and user-friendly websites - Proficiency in HTML, CSS, JavaScript, and other relevant web development tools and technologies.

    €501 (Avg Bid)
    €501 Offre moyenne
    129 offres
    React 18 expert needed 6 jours left
    VERIFIÉ

    Before you are shortlist, you will be given a very small single page script having issue , and you have to identify the issue and tell why. I am seeking a React 18 expert to help me implement some features and functionality for my project. While I have a general idea of what I want, I am open to suggestions and recommendations from the selected freelancer. The payment structure for this project is hourly-based, and I do have some existing code that needs to be integrated with React 18. Ideal skills and experience for this job include: - Strong proficiency in React 18 - Experience with integrating existing code into React projects - Ability to work efficiently and effectively on an hourly-based payment structure - Good communication skills to ensure a smooth collaboration process

    €12 / hr (Avg Bid)
    €12 / hr Offre moyenne
    52 offres
    Typescript developer 6 jours left
    VERIFIÉ

    I am looking for a Typescript developer for a Web Development project that will take more than 3 months to complete. The ideal candidate should have experience with Typescript and be comfortable using it for web development. A specific framework is not required, but knowledge of React, Angular, or Vue.js is a plus. The project will involve developing and implementing various web-based features and functionalities. The developer should be able to work independently and be willing to collaborate with the rest of the team. Strong communication skills and attention to detail are essential. PS: Working timezone is on EST and should be able to work remotely.

    €12 / hr (Avg Bid)
    €12 / hr Offre moyenne
    82 offres

    I need a Quasar framework and Vue.js Cordova expert to help me current code I need rewrite my existing code with quality code then we will proceed next task for this app dealine today Skills and Experience: - Expertise in Quasar framework and Vue.js - Experience in creating web applications from scratch - Ability to work efficiently and meet strict deadlines - Strong design skills to bring my vision to life

    €6 / hr (Avg Bid)
    €6 / hr Offre moyenne
    7 offres

    I need a Quasar framework and Vue.js Cordova expert to help me current code I need rewrite my existing code with quality code then we will proceed next task for this app dealine today Skills and Experience: - Expertise in Quasar framework and Vue.js - Experience in creating web applications from scratch - Ability to work efficiently and meet strict deadlines - Strong design skills to bring my vision to life

    €7 / hr (Avg Bid)
    €7 / hr Offre moyenne
    5 offres
    lightbox php 6 jours left
    VERIFIÉ

    hello, i would like to edit a photo gallery relazed in angular js create a lightbox max 50 euro

    €99 (Avg Bid)
    €99 Offre moyenne
    41 offres

    I am looking for a developer to create a CRM & Estimation Saas application. The ideal candidate should have experience in JavaScript and be able to create the following essential features: - Lead management - Sales forecasting - Project management The target user base for this application is small businesses.

    €192 (Avg Bid)
    €192 Offre moyenne
    7 offres

    I am looking for a Full Stack Developer to build our Web Interface for our API. The ideal candidate will have experience with JavaScript and React, Python. Skills and Experience: - Full Stack Development - JavaScript - Python - React//MERN - ONNX Framework - Nvidia Triton/Nvidia NGC - Understanding of UI/UX Web App control methodologies and frameworks - Docker We have all of our proprietary documentation that provides a guide on how developers can build a web interface for the WebAPI. By following these steps, you will be able to create a user-friendly web application that interacts with our API to generate predictions based on user input. Dev must have understanding of how stable diffusion apps work.

    €259 (Avg Bid)
    €259 Offre moyenne
    59 offres

    Hello, I'm looking for an experienced front-end web developer to create a Web3 Launchpad for me. I have a vision in mind for how I want my website to look and feel in terms of design – I'm looking for a modern and minimalist style (tailwind css styles is good). I also have a preferred front-end framework in mind – React js or next js– for creating this website. Lastly, I need the website to feature certain functionality, specifically having dynamic content on my website. Please ONLY web3 experience and links to watch.

    €4727 (Avg Bid)
    €4727 Offre moyenne
    79 offres

    Herramienta vigente con código de acceso. Tecnologías utilizadas: 1.1. Frontend: El componente Frontend ha sido desarrollado utilizando React JS. 1.2. Backend: Por otro lado, el componente se ha implementado usando Node JS. usando express js La herramienta deberá permitir generar el certificado de forma automática a partir de la precarga de un template general Campos que deberían poder automatizarse ya que son datos precargados al sistema: Nombre del participante Nombre del evento Fecha del evento. Asignación de certificados a participantes En la actualidad la herramienta los asigna a través de un número. Ese número no se puede repetir nunca. Es único para cada usuario. Es decir, que la automatización ...

    €18 (Avg Bid)
    €18 Offre moyenne
    6 offres
    I need a api developer 6 jours left
    VERIFIÉ

    Hello, I pretty technical and have my own Wordpress websites that I’m happy with. The one thing I cannot do is involve 3rd party external api feeds, in particular my shop on I’ve found this website thats uses it: And also this page explaining it can be done Could I get an idea how much this would cost on my website thankyou. Helen

    €612 (Avg Bid)
    €612 Offre moyenne
    27 offres

    I am looking for a developer to build an LMS with basic functionalities (multiple choice answer and planning). The ideal candidate will have experience with user management and be able to integrate that into the LMS. Additional requirements may include: - A user-friendly interface for both administrators and learners - The ability to create and manage courses and their content - Basic assessment tools to track progress and performance - API integrations to other systems as needed Overall, I am looking for a reliable and experienced developer who can deliver a high-quality LMS that meets my needs. You could use Drupal or React for example.

    €594 (Avg Bid)
    €594 Offre moyenne
    71 offres
    implement 3rd party API 6 jours left
    VERIFIÉ

    I have had 2 developers try to implement a 3rd party API from escrow.com. 90% of it is done - just need to get it finished Please only reply if you are 100000% sure you know what you are doing Please also put in the first line of your reply or i will delete you straight away

    €143 (Avg Bid)
    €143 Offre moyenne
    27 offres

    I am looking for an experienced Google Ad API expert who can assist me with authenticating my Google Ad API login. The ideal candidate should have expertise in OAuth2, API Key and JWT authentication methods. Requirements: - Experience in Google Ad API authentication - Strong communication skills If you are an expert in Google Ad API authentication and have the necessary skills, please apply for this project.

    €8 / hr (Avg Bid)
    €8 / hr Offre moyenne
    9 offres

    Es necesario conectar esta pagina web con la api internacional de la empresa de la cual contamos con toda la documentación para realizar la conexión y flujo de información de los inmuebles hacia la pagina internacional

    €160 (Avg Bid)
    €160 Offre moyenne
    40 offres
    Image API NEEDED 6 jours left
    VERIFIÉ

    Develop API using retrieve images based on a query (text or image), using Open AI's pretrained CLIP model.

    €25 (Avg Bid)
    €25 Offre moyenne
    12 offres

    Recriar um exemplo de um preçário e embutir dentro de um layout já pronto.

    €18 (Avg Bid)
    €18 Offre moyenne
    8 offres
    ecommerce community site mvp 6 jours left
    VERIFIÉ

    We are looking for a freelancer to help build an ecommerce community site MVP. The ideal candidate will have experience in developing ecommerce platforms, with a focus on product catalog and search functionality. The project will include user registration and login, as well as social networking features. Platform/Technology: No preference stated. Initial User Base: The site is expected to have less than 500 users initially. Overall, we need a skilled developer who can create a user-friendly and efficient ecommerce community site MVP. The website should include both user profiles and product reviews, as these are crucial for creating a community-driven platform. Users should be able to create profiles, connect with others, and leave ratings and reviews for products. For payment integ...

    €3692 (Avg Bid)
    LDN
    €3692 Offre moyenne
    59 offres

    Looking for an expert who can import bulk product including Metafields Metafields Wash & Care Description Color Material Dimension Shape Tried Matrixify but it doesn't allow metafield json format

    €39 (Avg Bid)
    €39 Offre moyenne
    10 offres

    I need a Quasar framework and Vue.js Cordova expert to help me current code I need rewrite my existing code with quality code then we will proceed next task for this app dealine today Skills and Experience: - Expertise in Quasar framework and Vue.js - Experience in creating web applications from scratch - Ability to work efficiently and meet strict deadlines - Strong design skills to bring my vision to life

    €6 / hr (Avg Bid)
    €6 / hr Offre moyenne
    8 offres

    Api integration for our website

    €620 (Avg Bid)
    €620 Offre moyenne
    27 offres

    I am in need of an expert who knows Jira app development in cloud using node.js. I have a specific feature in mind for the Jira app and I need this project to be completed within 2 days. Already 75% of the work done just remaining things needs to add. The ideal freelancer for this job should have the following skills and experience: - Expertise in Jira app development in cloud using node.js - Experience in developing custom features for Jira apps - Strong knowledge of node.js and its related frameworks - Ability to work quickly and efficiently to complete the project within the desired timeframe If you are an expert in Jira app development using node.js and can complete this project within 2 days, please submit your proposal.

    €9 (Avg Bid)
    €9 Offre moyenne
    5 offres

    I want to create a very simple drag and drop dashboard where we can create sections and drag the KPIs in the dashboard. Person only has to create a skeleton for us as illustrated in example below: E.g.

    €85 (Avg Bid)
    €85 Offre moyenne
    7 offres

    Hi, I would like to collect information from website below. You have to select options from 6 drop-down list. then we have to get the latitude and longitude from the map at the right side. Also finally, there is a message at the map - we would like to download that too. The hardest part is that when you select any option from all drop-down lists, there is a captcha. Anyone who can bypass captcha, that would be great. We're looking for someone who can solve our issue. Output could be in Excel format or text format.

    €382 (Avg Bid)
    €382 Offre moyenne
    76 offres

    Please see attached document/video for detailed instructions.

    €493 (Avg Bid)
    €493 Offre moyenne
    63 offres
    Fitness Calculator 6 jours left
    VERIFIÉ

    I am looking for a fitness calculator that I can use to calculate calories burned, BMI (Body Mass Index), BMR (Basal Metabolic Rate), fat intake, height and weight, and TDEE (Total Daily Energy Expenditure). I am open to suggestions on the formula or method that this calculator should use. Specifically, I need this fitness calculator to be integrated into a website.

    €23 (Avg Bid)
    €23 Offre moyenne
    17 offres

    Laravel Configuration and Page Creation I am looking for a Laravel expert to help me with configuration and page creation for my existing website. Here are the details: Fix email sending. Emails are not being sent out for new and existing user accounts. Error message 200/220/550 Server Setup - I have already installed Laravel on my server, so no server setup is needed. Extensions and Packages - No specific Laravel extensions or packages need to be installed. Page Creation - I need additional pages added to my existing website. Developer will have obtain codes for specific tools, 8 tools with their own pages to be created. New pages will be created on the back end of the site using existing code and format. Ideal Skills and Experience - Strong knowledge of Laravel framework - Experie...

    €33 (Avg Bid)
    €33 Offre moyenne
    46 offres

    We have thousand of logo icons that we need to place in batch on a default SVG logo design. The script should place the svg file on the svg logo design template and on a predefined position and max. height. After that it should use one of the logo colors for for the tag: <g id="tagline and save it to a folder. A JSX illustrator script is also fine for us!

    €112 (Avg Bid)
    €112 Offre moyenne
    62 offres
    Build the casino, slot game. 6 jours left
    VERIFIÉ

    I am looking for a developer to build a casino slot game for web platform. The ideal candidate should have experience in building Classic Slots, Video Slots and Progressive Jackpot Slots. Theme: I have a specific theme in mind for the slot game. The developer should be able to create a visually appealing and user-friendly interface for the game. The game should have an easy-to-use dashboard with options to manage and monitor player activity. Additionally, the game should have a secure payment gateway integration for players to deposit and withdraw funds. Ideal Skills: - Experience in building casino games and slot machines - Knowledge of HTML5, JavaScript, and CSS - Familiarity with payment gateway integration - Ability to create and maintain databases to store player data and game i...

    €717 (Avg Bid)
    €717 Offre moyenne
    65 offres
    Front end Developer B2B SaaS 6 jours left
    VERIFIÉ

    Company Overview: We are a dynamic and innovative technology company specialising in developing a cutting-edge B2B SaaS product. Our platform leverages Angular, .Net on Azure, and emphasises seamless user experiences and captivating UI designs. As we continue to expand our product, we are seeking a talented Front-End Developer with a strong UX/UI design background to join our team. Responsibilities: - Collaborate with the product team to design and develop intuitive, responsive, and visually appealing front-end interfaces for our B2B SaaS product. - Implement modern and efficient code using Angular, HTML5, CSS3, and JavaScript to deliver high-quality features and functionalities. - Leverage your UX/UI design skills to create engaging and user-centric interfaces, ensuring a seamless and e...

    €1876 (Avg Bid)
    €1876 Offre moyenne
    76 offres

    I am in need of a Reactjs developer with experience in fixing functionality issues. The bug that needs to be fixed. Around 5-6 bugs because existing code. Amostly bugs are minors.

    €18 (Avg Bid)
    €18 Offre moyenne
    20 offres

    I am looking for a developer with experience in integrating Google Native Maps with Flutter applications. The project requires the following skills: - Proficiency in Flutter and Google Maps API - Knowledge of location-based markers and real-time location tracking - Experience in implementing Google Cloud Platform The project involves integrating Google Native Maps with a Flutter application, specifically implementing location-based markers and real-time location tracking. The ideal candidate should have experience with Google Maps API and knowledge of Flutter. Additionally, proficiency in implementing Google Cloud Platform is required.

    €159 (Avg Bid)
    €159 Offre moyenne
    23 offres

    I am looking for a developer who can help me create a Google Chrome extension for , that helps online shoppers check local availability for any product, on any website, using the search engine. Here's how we would like the extension to function: 1. The user selects a product description from any e-commerce website by either highlighting the desired text or hovering over it. (see image attached for example) 2. Upon selecting text, the user can simply click the 'search' button to initiate the process. 3. Behind the scenes, the app should generate up to 10 variations of the selected text using AI, ranging from short to long. These variations will be intelligently crafted to enhance the search capabilities on For example, if the selected text description is 'adidas O...

    €119 (Avg Bid)
    €119 Offre moyenne
    27 offres

    I am looking for a React developer to make minor bug fixes to an existing application. I have a list of the specific bugs that need to be fixed and I need the project completed within one week. Ideal Skills and Experience: - Strong experience with React - Proven track record of successfully fixing bugs in existing applications - Ability to work efficiently and meet tight deadlines - Good communication skills to ensure the bugs are fixed accurately and effectively. -Experience with PHP will be a plus.

    €2 - €6 / hr
    Scellé
    €2 - €6 / hr
    22 offres

    I need an HTML page with jQuery script to drag & drop input fields on the images showing on the page.

    €69 (Avg Bid)
    €69 Offre moyenne
    16 offres

    Note: Only India based developers should apply (preferred Delhi/NCR) I am in need of a full stack developer with 8-10 yrs exp., who is proficient in MERN stack and PHP. The project I have in mind is a web application for enterprise portals. Ideal Skills and Experience: - Proficiency in MERN stack and PHP - Experience in developing web applications for data management - Familiarity with database management systems - Knowledge of front-end and back-end development - Strong problem-solving skills

    €14 / hr (Avg Bid)
    €14 / hr Offre moyenne
    26 offres

    I use worpdress and I have the Yith Point of sale plugin, and I need a modification to it. The modifications are as follows: - That has a selectbox with the source from which the order was made, in the selectbox options it must have the 3 options (FACEBOOK-TEST1, INSTAGRAM-TESTE2, TIKTOK-TESTE3) (I left an example attached) - The source that is selected must appear in the order notes. Note that the Add Note button still has to work because it also serves to add notes to the order. - The Pay button only works when a product is added to the cart, in this case, it will also only be available after selecting the source of the order. - The selectbox has to be responsive.

    €304 (Avg Bid)
    €304 Offre moyenne
    25 offres

    Estamos en la búsqueda de un programador para crear una plataforma Web con PHP, MySQL, bootstrap, javascript, html. Debe contar con la pagina home donde explique quienes somos, los servicios que ofrecemos, nuestros planes, nuestros aliados, debe contar con chat de atención en línea, página de datos de contacto. A parte de las pagina de información debe contar con los siguientes módulos: 1- Control de usuarios del sistema, donde debe existir solo dos perfiles, uno el Administrador, y dos el Vendedor, cada uno con capacidad para operar los diferentes módulos. 2- Control de afiliados: donde se debe registrar los afiliados. 3- Control de pagos, en donde se debe registrar el pago de los afiliados, el cual puede ser reportado por los afilia...

    €795 (Avg Bid)
    LDN
    €795 Offre moyenne
    18 offres

    I will send you similar websites which are simple one page. Need to build that and deliver me files for the same. Will provide content and logo. Budget 5k-7k INR. Pls share your previous works so I can select you and get started on the project faster.

    €66 (Avg Bid)
    €66 Offre moyenne
    62 offres

    I need a Quasar framework and Vue.js Cordova expert to help me create a new web application from scratch. I already have a design in mind, so I am looking for someone who can help me bring my vision to life. The project timeline is 3-4 weeks, so I need someone who can work efficiently and deliver high-quality results within that timeframe. Skills and Experience: - Expertise in Quasar framework and Vue.js - Experience in creating web applications from scratch - Ability to work efficiently and meet strict deadlines - Strong design skills to bring my vision to life

    €7 / hr (Avg Bid)
    €7 / hr Offre moyenne
    25 offres

    I need someone that can start immediately. I have a php script that connects my database to a messaging API, not frontend. Triggers make the received messages be saved to DB and send back pre set replies. I have 2 versions of it. One month old backup with 200 lines of code, at most, very well organized. I also have a more recent version, 400 lines of code, not organized. I need someone to help me organize them. As I am a former developer a understand the logic well and I will not even wasting the freelancer time sending the full 400 lines of code. I will give him the clean version, and cut/send the functions from the larger file that I need to implement, so he can easily understand what I need and implement his own code, under my supervision. CHECK M PROFILE, I have been here since...

    €12 / hr (Avg Bid)
    €12 / hr Offre moyenne
    113 offres
    Angularjs Developer 6 jours left
    VERIFIÉ

    I am looking for an experienced AngularJS developer to assist me in debugging and fixing some minor issues on my website. The issues are low priority, but I need them fixed urgently within a few days. Ideal skills and experience: - Strong knowledge of AngularJS and web development - Experience in debugging and fixing issues on AngularJS websites - Ability to work efficiently and meet tight deadlines.

    €7 / hr (Avg Bid)
    €7 / hr Offre moyenne
    17 offres

    Articles recommandés juste pour vous

    If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
    11 MIN READ
    Learn how to find and work with a top-rated Google Chrome Developer for your project today!
    15 MIN READ
    Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.
    15 MIN READ