JavaScript Jobs

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!

From 693,441 reviews, clients rate our Javascript Developers 4.86 out of 5 stars.
Hire Javascript Developers

Filter

My recent searches
Filter by:
Budget
to
to
to
Type
Skills
Languages
    Job State
    776 jobs found, pricing in USD

    i want to set up zoom webhook to get zoom registrant to pull automatically, I am facing an issue in setup its just 10-minute task for you I will pay Rs maximum Rs 500 for this task

    $18 (Avg Bid)
    $18 Avg Bid
    1 bids

    The project includes creating UI for a form and write service/DAO layers. UI code already exists in other forms, code can be copied/reused. Once the data is entered in the form - Save and Cancel buttons functionality implementation. I will walk you through the tables/.js files/controllers etc. Mockups are available for the form. This is only one form.

    $153 (Avg Bid)
    $153 Avg Bid
    26 bids

    Our website uses the latest Porto HTML5 Template to simplify CSS using Bootstrap. The backend is primarily written using procedural PHP connected to a MySQL database. We use Plivo for SMS messaging and PHPMailer to send HTML emails. We would prefer to use any well maintained, free, open source code over paid or subscription-based code (e.g., for websocket protocol). We need to add an online auction system to our existing website. The requirements for this online auction system are outlined in attached PDF. Again, all PHP code must be written using procedural not OOP or class-based code. You must have proven experience using websockets, preferably integration. You must also have experience with PHPMailer and Plivo SMS messaging. Let us know if you have any questions. We are look...

    $143 (Avg Bid)
    $143 Avg Bid
    24 bids

    I have designed a website in Figma and need it transferring to a website with separate desktop and mobile layouts. I need all the styling and content copying over so the Carrd site looks exactly the same as the Figma design. I need someone who know how to use Carrd and can build the majority of the website using Carrds “no-code” tools / parameters. I want to use as little custom code as possible, only where absolutely necessity in order to match the Figma design. This is so I can still edit the site in future using Carrd’s no-code parameters, if I need to. Before we start the job, can you please tell me which elements you think will need to be custom coded to match the Figma design. I have already setup a basic template in Carrd with a sticky nav bar so some of the w...

    $160 (Avg Bid)
    $160 Avg Bid
    23 bids

    I need a developer who has experience with Advanced Custom Fields. I need them to go into the wordpress back-end and pull data from database to display on front end, and to add features to homepage for re-design. Happy to walk through the code in detail and explain the needs. The features will ideally be done by April 10. This will open opportunities for more work in the future. Thanks, ---- Necesito un desarrollador que tenga experiencia con campos personalizados avanzados. Los necesito para ingresar al back-end de wordpress y extraer datos de la base de datos para mostrarlos en el front-end, y para agregar funciones a la página de inicio para rediseñar. Feliz de recorrer el código en detalle y explicar las necesidades. Idealmente, las caracterí...

    $27 / hr (Avg Bid)
    Featured Urgent
    $27 / hr Avg Bid
    42 bids
    complete nextjs app .. 6 days left
    VERIFIED

    I need a (backend & frontend) developer that can complete an existing app. It's a subscription marketplace that will allow users to: - open, access, manage, update, recover, & exit accounts; - list & manage companies; - browse, buy/pick(first-time), sell/push, buy/pull, & manage subscriptions; - create, duplicate, update, delete, & view briefs(posts) ~ admin only; The backend and frontend for most of the above tasks have already been completed by the previous developer. However, some tasks are yet to be completed. Kindly come to chat about what's left to be done. Kindly note that the below demo video is just for the overview of the app, it doesn't explain some tasks such as posts ~ thanks. The app requires a deep knowledge of (backend & fronte...

    $100 (Avg Bid)
    $100 Avg Bid
    6 bids

    I need an develop to develop site for imei check service like or site. My site will bne comencted to the api with this.

    $177 (Avg Bid)
    $177 Avg Bid
    29 bids

    I am looking for a talented developer to create a network affiliate marketing platform with VPS hosting. My primary goal is to create a platform that allows payment processing for network affiliates. The platform requires a wide range of sophisticated user management, reporting, and analytics capabilities so that users can easily analyze performance and adjust strategies accordingly. I want the platform to be developed with a language like PHP, JavaScript, or Python. If you have the skills and experience to create a powerful and reliable affiliate marketing platform, I'd love to hear from you.

    $815 (Avg Bid)
    $815 Avg Bid
    31 bids
    onlyprime marketplace 6 days left
    VERIFIED

    problem to solve: the account configuration fields for the seller are not displayed in the front-end. The fields can be set from the backend, but are not visible in the seller dashboard

    $31 (Avg Bid)
    $31 Avg Bid
    17 bids

    i want to make an e-commerce site with customizable products

    $138 (Avg Bid)
    $138 Avg Bid
    6 bids

    Project to develop backend of a web application using Java. Developing Business logic, writing unit tests, integration tests Preferred candidate to have 4+ years of Java experience. Must be proficient in back-end Java development and React for frontend. We expect the project spanning over 3-6 months. Compensation can be discussed once you understand the project requirement in our first meeting. Key Responsibilities: 1. Design and develop high-performance and scalable applications using Java. 2. Collaborate with cross-functional teams to implement new features. 3. Optimize application performance by resolving bottlenecks. 4. Perform unit testing, code reviews to ensure delivery of high-quality software. Requirements: --Full time free lancer --10 years of Java experience -- India location...

    $2462 (Avg Bid)
    $2462 Avg Bid
    16 bids
    Ecommerce Website on React 6 days left
    VERIFIED

    I am looking for a talented and experienced web developer to create an ecommerce website on React. The website should be an online store, meaning that customers can search and purchase items all within the same platform. I am not sure which custom features might be necessary, so the developer should be prepared to provide advice on this aspect. The programming language that I am looking for is JavaScript. The successful applicant should have experience building complex and efficient web-applications, working with React, and be proficient and experienced in JavaScript.

    $653 (Avg Bid)
    $653 Avg Bid
    37 bids

    I have an e-commerce webiste in MERN. Where frontend and backend code is not segregated and an older version of node js is used. I need to get both codes of frontend and backend in 2 different repositories and node version 17 should be supported instead of 14. 1. Segrigation of frontend and backend. 2. Upgrading node version from 14 to 17. 3. Fix compatibility issues. (Should run successfully)

    $93 (Avg Bid)
    $93 Avg Bid
    15 bids

    Writing on Vue 2.x convert code using Ant library desgin

    $41 (Avg Bid)
    $41 Avg Bid
    11 bids

    We are atempting to create a simple comunication simulator between a student pilot and a teacher. The student will receive instructions from the teacher, and will need to enter the request onto the walkie talkie. The teacher will need the ability to verify that the student has enter the information correctly. At all times there needs to be communcation(voice) between the parties logged in. I have attached a simple idea of what is needed.

    $500 (Avg Bid)
    $500 Avg Bid
    20 bids

    Hello, i have a new website for lead management (Names, E-Mails,...) for this i need a chrome extension, that scrape Lin ke din, Xi ng, and other websites. 1. I am an a website that have the data, ther come a button or modal if i want to save the information in the crm 2. On Click the data goes to an API Question: If the lauyout of website change, how to update the extention? If you know how to develop such a scraper, write me please in your answer: "Hi Dennis, yes i know how to create a extention!" because here are so many bots :-) BR Dennis

    $65 (Avg Bid)
    $65 Avg Bid
    11 bids

    Hey I have a nodejs web app and I want to add cart functionallity in it? can you do it? it is mongodb, ejs, express, nodejs

    $24 (Avg Bid)
    $24 Avg Bid
    5 bids

    I need to get live tick data from the plugin and save to log file. I will provide all necessary software to get live data from plugin. I provided sample image of plugin application.I will send you a full plugin application to you when you need.

    $76 (Avg Bid)
    $76 Avg Bid
    13 bids

    Please see the attached IA/basic figmas/wireframes, and mock ups I am open to CMS/Framework/Custom solutions - however there must be an admin panel/security/gdpr compliant solution Core components: 1. News that goes into 3/4 categories. All news on splas page carousel plus list 2. Survey (survey integrated on site, provides data analysis/visualisation (basic)) 3. Video, as per news, carousel and list, video/podcast category - site must be good with videp/speed/bandwidth etc 4. Newsletter - GDRP is essential

    $2340 (Avg Bid)
    $2340 Avg Bid
    70 bids
    modify shopify robots.txt 6 days left
    VERIFIED

    hello i need add into of shopify, this rows User-agent: msnbot Crawl-delay: 5 User-agent: bingbot Crawl-delay: 5 User-agent: facebookexternalhit/1.0 Disallow: / User-agent: facebookexternalhit/1.1 Disallow: / thanks

    $26 (Avg Bid)
    $26 Avg Bid
    12 bids
    Django tasks - URGENT 6 days left
    VERIFIED

    Need to complete few django tasks according to description / study material. Create users log ins, add comments - users, create admin log in, add bootstrap themes.

    $29 (Avg Bid)
    $29 Avg Bid
    23 bids
    complete nextjs app . 6 days left
    VERIFIED

    I need a (backend & frontend) developer that can complete an existing app. It's a subscription marketplace that will allow users to: - open, access, manage, update, recover, & exit accounts; - list & manage companies; - browse, buy/pick(first-time), sell/push, buy/pull, & manage subscriptions; - create, duplicate, update, delete, & view briefs(posts) ~ admin only; The backend and frontend for most of the above tasks have already been completed by the previous developer. However, some tasks are yet to be completed. Kindly come to chat about what's left to be done. Kindly note that the below demo video is just for the overview of the app, it doesn't explain some tasks such as posts ~ thanks. The app requires a deep knowledge of (backend & fronte...

    $34 (Avg Bid)
    $34 Avg Bid
    7 bids

    I am building a plugin that automate form filling for specific form on a site built with react and form in modal, Need help with simulating events, setting fields value using JavaScript in plugin, I have front end ready for plugin need help with simulating clicks and setting fields value

    $14 (Avg Bid)
    $14 Avg Bid
    5 bids

    Hello ================================================================== Please check this video first : ================================================================== Again, carefullly check the video. You can find this image editor here: I ned this image editor using vue js with the help of ( ) If you really can do this, Tell me the percentage showing on this video at 3:01 time when you write your proposal. Thank You.

    $157 (Avg Bid)
    $157 Avg Bid
    4 bids

    We have a website, from which users can book hotels or packages. 1. We need a coupons feature to be added that can be generated from the backend and can be applied from the UI during checkout 2. Rating feature is needed where users who have stayed in hotels can give rating to the hotels and same will be reflected in the UI for the hotels. ExpressJs Framework for building RESTful APIs with Node js , NextJs, Matx-react tech needed

    $285 (Avg Bid)
    $285 Avg Bid
    8 bids

    need a guy for solving 2 Data structures and algorithms questions on 8th April 2023 or 9th April

    $6 / hr (Avg Bid)
    $6 / hr Avg Bid
    12 bids

    Hello, I'm looking for a freelancer to help me understand a web application code written with Angular and Java. Specifically, I'm looking for a freelancer who can do a full code review in order to help me gain an understanding of the existing code. My team has an advanced level of experience with Angular and Java, so the freelancer needs to have an equally advanced level of knowledge. So if you think you've got the expertise necessary to give me the insights I need to understand this piece of code, get in touch! The source of the project is on github , it is a open source code application. You can check the code then quote your proposal. Would request to please go through the code and then only bid

    $180 (Avg Bid)
    $180 Avg Bid
    11 bids

    Need an backend api to manage my game Please find it and come up with pricing and timeline

    $184 (Avg Bid)
    $184 Avg Bid
    14 bids

    I need a PHP developer to help me integrate the Virtualizor API into my PHP application. The goal is to be able to create user accounts in Virtualizor from my PHP form, and handle errors and display error messages to the user if the account creation fails for any reason. I have already set up the PHP form and attempted to use the Virtualizor API, but I am running into errors and need help resolving them. I have the API credentials (API key, API password, and API URL), and I am using cURL to make the API requests. Here's what I need help with: Review my existing PHP code and identify the issues causing the errors. Update the PHP code to properly handle errors and display error messages to the user. Ensure that user accounts are created successfully in Virtualizor and that the accoun...

    $7 / hr (Avg Bid)
    $7 / hr Avg Bid
    12 bids
    Web project 6 days left

    The project will consist of creating a collaborative calendar that several users can share in order to facilitate certain actions of the member of our club. (Information in file) (HTML, PHP, JavaScript, JSON, AJAX, CSS)

    $60 (Avg Bid)
    $60 Avg Bid
    26 bids
    Workflow website 6 days left
    VERIFIED

    I need a multi-tenant web based application: Application architecture Application architecture - Super Admin - Client A - Client “super” admin Access to current dashboard) - Client manager (can access dashboard to manage his team jobs (job workflow for his team)) in his regions - Client team (multiple teams per region) - Client team member - only sees his calendar - Client B - Client “super” admin Access to current dashboard) - Client manager (can access dashboard to manage his team jobs (job workflow for his team)) in his regions - Client team (multiple teams per region) - Client team member - only sees his calendar - Client ...N - Client “super” admin Access to current dashboard) ...

    $1337 (Avg Bid)
    $1337 Avg Bid
    69 bids

    Build me a simple shop with Excel VBA HTML and Java. I need specialist for the coding combination, I need very simple and clear code and simple and clear function. Pls give me your quote. Non-disclosure Agreement Agreement and Intellectual Property (IP) Agreement obligatory. BR

    $19 / hr (Avg Bid)
    $19 / hr Avg Bid
    30 bids

    I’m looking to build a website that simplifies and automates a candidate application process for another (user-unfriendly) site. It would: - Provide an attractive form for users to enter text data and upload two photos - Resize the photos to specific dimensions - Submit these photos and text to another website - Create a temporary email address to receive the application response of the second website, format it for style, and forward it to the user - Take payment from the user - Make payment to the second site - Be optimized for mobile use Ideally I would like to simplify the user experience even further by: - Having the user input data not by typing but by taking a picture of an ID (i.e., inputting the user’s name via OCR of the picture, extracting the headshot from the I...

    $561 (Avg Bid)
    $561 Avg Bid
    89 bids

    Hello, I need a Magento expert who can fix bugs like order email sending problems and the captcha not showing. Once you do this job more work is ahead. More details in pm Thanks

    $6 / hr (Avg Bid)
    $6 / hr Avg Bid
    22 bids

    I want to build a webpage for users to edit and design an image with provided images. let's say in this example, here will be 4 shapes, like shown in attachment. The image for each shape will be provided by us. I need code written in ReactJS to do the following: - Allow users to drag elements from the library on the right onto the area on the left - When dragged on the left, the elements must clip to the bottom line like shown above - The elements can be dragged horizontally - When an element is dragged, push the other elements to make space for the element that’s being dragged - Elements should touch each other, leaving no space in between and no overlapping

    $182 (Avg Bid)
    $182 Avg Bid
    38 bids

    We are looking for a Java developer who can do Technical reviews, Code reviews & Mentor the Team Well-versed with Java language, Core Java, Client-side programming, Server-side programming, and J2EE technologies. Knowledge of presentation languages such as JSP, HTML, Style Sheets, and JavaScript. Familiarity with AJAX, JQuery, and equivalent technologies Good understanding of relational databases, SQL & MySQL Understanding of Struts, Hibernate framework. Responsibilities and Duties Develop & implement new software programs. Maintain & improve the performance of existing software. Test & maintain software products to ensure strong functionality & optimization. Recommend improvements to existing software programs as necessary. Required Experience, Skills, and Quali...

    $341 (Avg Bid)
    $341 Avg Bid
    8 bids
    Front-End developer 6 days left
    VERIFIED

    Looking for someone who can code few front-end pages for me like Home page/Info page etc. The website is related to books html/css/js is required. Will be paid per page, experienced people only

    $436 (Avg Bid)
    $436 Avg Bid
    98 bids
    Hide Website Code in server 6 days left
    VERIFIED

    Your task is to help me in hiding the website code in live server.

    $7 (Avg Bid)
    $7 Avg Bid
    10 bids

    There will be 3 questions In that 2 will be javascript (Node.js) and one is react api..there will be an existing code..there will be whole components and cs you have to change the code as per the requirement

    $100 (Avg Bid)
    $100 Avg Bid
    23 bids

    i want to publish my node js api to linux server and some changes in my api

    $24 (Avg Bid)
    $24 Avg Bid
    14 bids

    THIS IS A JOB FOR A REAL DEVELOPER WITH REAL SKILLS AS ITS URGENT IT NEEDS TO START NOW... NO TIMEWASTERS We are seeking a skilled developer with experience in AI STS ML and Ai technologies to assist us with an exciting integration project with a Long term position possible for the right freelancer. As the ideal candidate, you will have experience working with Next JS, Python, ChatGPT, AI STS technologies, and Affiliate tracking pixels. Key Objectives: Integrate our chatbot with our Next JS website Connect Python code to the web application Implement Affiliate tracking pixels for partner tracking Ensure the web application is fully responsive and operational on all devices Tech Stack: Next JS for the website Python code for the chatbot ChatGPT for natural language processing AI STS t...

    $444 (Avg Bid)
    $444 Avg Bid
    31 bids

    I am looking for a Chrome Extension developer for the long term. Details and budget will be discussed with the winning bidder. If you perform well in the first project will hire you for further projects as well. So, It could be a long-term business relationship. New freelancers can also apply. Start your proposal with the word "Chrome Extension Expert" to be considered.

    $130 (Avg Bid)
    $130 Avg Bid
    4 bids

    I need to utilize ArcGis Online and Python using Colabs.

    $186 (Avg Bid)
    $186 Avg Bid
    28 bids
    Indie dev wanted 6 days left

    Hello, We are a small company developing experimental projects in various tech stacks, and we are looking for expanding our team. Currently looking for a developer to complete a test task, to then evaluate if the candidate is a good fit. The test task is straight forward: a figma design to be converted in a html template. Details will be given during interview process. The top most required traits we are looking for: - independent (2): you understand the context and you pick up what to do easily - proactive (1): you don't wait for people to tell you what to do - passionate (5): you like tech (just like us) and enjoy building digital products that might be helpful to others - curious (4): you read about the tech world and keep updated with the hottest trends - transparent (3): you ...

    $162 (Avg Bid)
    $162 Avg Bid
    16 bids
    Odoo customization 6 days left
    VERIFIED

    Looking for Odoo developer for freelance customization tasks

    $14 / hr (Avg Bid)
    $14 / hr Avg Bid
    35 bids

    Will Know more on agreement or after NDA Singed

    $657 (Avg Bid)
    $657 Avg Bid
    52 bids

    I have a nodejs/reactjs site hosted in AWS. I want to set up PayPal payouts to the website, for the user be able to make payout requests. I already have a PayPal business account with Payouts enabled. Please only apply if you already have experience with setting up PayPal payouts to nodejs site. Budget: 40 USD - Fixed.

    $37 (Avg Bid)
    $37 Avg Bid
    15 bids

    Need to optimize the mobile layout & Menu. As per the UI: (Copy)?node-id=1-4&t=rQrKdys2zSszKoAi-0 Need to set up a scrollable product image gallery in elementor Reference: Note: The green scroll bar also should move and also the focus image should have a green bar below it as in the picture, the bar will change to the image which is displayed in the gallery. Any plugin from Crocoblock Jet Engine can be used.

    $21 (Avg Bid)
    $21 Avg Bid
    11 bids
    React assistance - Promise 6 days left
    VERIFIED

    Hello, I am using ReactJS and ExpressJS for converting a file. Once the file is converted in ExpressJS I want to send the path to the client with socket.io. I am facing problems doing that. Can you help me?

    $41 (Avg Bid)
    $41 Avg Bid
    16 bids

    I'm looking for an experienced programmer to create a custom WordPress website and develop specialized Excel functions and code. The programming language to be used is PHP, and I need some specific features implemented. The final product needs to be hosted on a web platform. I'm looking for someone with strong experience in handling Excel functions and coding, as well as developing websites with WordPress. You should have a proven track record in creating custom solutions and delivering high quality outcomes in a timely manner. I'm open to suggestions on how the project should be approached, and I'm looking for a programmer who is reliable, communicative, and organized.

    $19 / hr (Avg Bid)
    $19 / hr Avg Bid
    42 bids

    Recommended Articles Just for You

    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
    Python runs some of the biggest websites on the net. Here’s how to create a website using Python, one of the easiest programming languages around.
    8 MIN READ
    You can build a stunning website on the Wordpress platform. Here is a collection of 10 sensational Wordpress designs to ignite your creativity.
    7 MIN READ