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!

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    645 jobs found, pricing in SGD
    Looking for Saas Expert -- 6 days left
    VERIFIED

    I am seeking a Saas expert to create a customizable platform with integration to third-party apps for my programmer APP development project. The platform will require automated reports and dashboard features to manage and analyze the project's progress. The ideal candidate should have experience in Saas platform development, automation, and integration with third-party apps. Ref: Programming - Laravel I need help in Issues solved and if ok will hire for Apps same as Regards, Vaibhu

    $24 - $204
    $24 - $204
    0 bids

    Form Parser using OCR, ML, NLP, etc I need a developer to create a Form Parser that can handle Invoices. The ideal candidate should have experience with Java programming language and be familiar with Google Cloud Vision API. The project should include the following: - Ability to extract data from Invoices using OCR, ML, and NLP techniques - Integration with Google Cloud Vision API for OCR - Use of ML and NLP libraries to extract relevant data from Invoices - Output data in a structured format, such as CSV or JSON Skills and experience required: - Strong experience with Java programming language - Familiarity with Google Cloud Vision API - Knowledge of OCR, ML, and NLP techniques and libraries, such as Tesseract and OpenCV - Experience with data extraction and output in structured format...

    $243 (Avg Bid)
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    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

    $9 / hr (Avg Bid)
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    8 bids

    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

    $11 / hr (Avg Bid)
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    I am looking for a developer to add WebAuthN to an open source ChatApp, which the backend is built using Python, and the front end is iOS/android/Web. I have an idea of how the authentication system should work, but I need help setting it up from scratch. My preferred method for implementing WebAuthN is by following a particular tutorial. The ideal candidate for this project should have experience with Python/Twisted and implementing WebAuthN. Additionally, knowledge of authentication systems and security protocols is highly desirable. Requirements: - Experience with Python - Knowledge of WebAuthN and authentication systems - Ability to implement WebAuthN in iOS - Expertise in security protocols and best practices To-do List: 1. Modify Matrix synapse backend so it accepts WebAuthN 2...

    $767 (Avg Bid)
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    22 bids

    Preciso transpor mais de 100 melodias já tiradas, mas impróprias para o meu instrumento musical porque há notas mais graves do que permite o instrumento. A tarefa é muito simples, e me explicaram que um script básico permitiria realizá-la. Como não entendo de código, prefiro que um profissional crie esse script para mim. Tentei o ChatGPT 4, o Novo Bing, mas não consegui que entendessem a tarefa. Segue um exemplo de transposição. A seta para baixo indica a oitava imediatamente inferior à oitava central, e a seta para cima, a oitava imediatamente superior a essa. O script deve "varrer" a melodia e substituir nota por nota, sequencialmente (para não haver substituição dupla), da ...

    $27 (Avg Bid)
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    2 bids
    React Api Integration 6 days left
    VERIFIED

    I am looking for a freelancer who can help me integrate a restful API with my React template. I already have a website built on Django and I want to integrate this API to display data and allow user interaction. The necessary authentication credentials for the API have already been set up. Ideal Skills and Experience: - Experience with React and API integration - Basic understanding of data storage in react - Good communication and problem-solving skills.

    $233 (Avg Bid)
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    40 bids

    Hi I have an website redesign job, website is newly built using react , angular, js, but not looking bold, so if anyone interested to redesign, reach me

    $15 / hr (Avg Bid)
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    22 bids

    I need a Python code for option trading and a trading bot that can execute my trades based on my analysis. The specific options strategy that I want the code to implement is the 'spred' strategy. I prefer a trading bot that allows me to make manual entries for my trades, while the bot provides me with automated analysis. The ideal platform for the trading bot should be compatible with dhan, angle one, or zerodha. The ideal freelancer for this job should have experience in Python programming, option trading, and developing trading bots. They should also have a good understanding of the 'spred' strategy and be familiar with the platforms mentioned.

    $9 / hr (Avg Bid)
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    6 bids

    I am looking for a developer to help me with my project to create pet profiles within the Bookly wordpress plugin. The ideal candidate for this job should have experience in working with WordPress plugins Bookly and WooCommerce. Requirements: - Detailed medical history to be included in each pet profile - Ability for users and medics to upload documents such as vaccination records - Pet profiles should be displayed on separate pages for each pet and be able to customize their image within user dashboard. Required fields: Name, Species, Breed, DOB. Store employees need to be able to attach files and notes to the pet profiles and also the appointment. All pet data needs to show on appointment sheet in back end and pets and pet details need to show on customers profile. - Users need to be ...

    $215 (Avg Bid)
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    24 bids

    If you have experience in google map autocomplete in react please let me know

    $36 (Avg Bid)
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    21 bids

    I am looking for a website developer to create a website for basic mathematics, specifically for high school students. The website should be interactive with games and quizzes to engage students in their learning. The main focus of the website should be on calculus, so the developer should have a strong background in this subject. The website should be easy to navigate and should provide informative content to help students understand calculus concepts. Ideal skills for this project include proficiency in HTML, CSS, and JavaScript. Experience in educational website development is a plus.

    $40 (Avg Bid)
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    17 bids
    API optimisation 6 days left
    VERIFIED

    I am looking for a skilled developer who can help me optimize my API. The current response time is between 1-3 seconds, and I'd like to improve that significantly. The API is built using an "Other" programming language, and it's a REST API. The ideal candidate will have experience with optimizing APIs and be familiar with the programming language used. Additionally, they should be able to work efficiently and provide clear communication throughout the project.

    $22 (Avg Bid)
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    7 bids

    I am looking for a Next JS developer to create an air ticket booking demo with basic search and booking functionality. The project requires the ability to record booking details on a database. While I don't have a preferred design, I do have some ideas that I would like to incorporate into the design. It is an ideal job for someone who has proficiency in Next JS, Prisma and Docker. However, database can be used alternatively as well. You have to be very efficient to deliver this project within timeframe. Please message for further information.

    $118 (Avg Bid)
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    27 bids

    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.

    $13 (Avg Bid)
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    I am looking for a skilled developer who can help me fix my Auth0 authentication issue. Specifically, I am unable to login to my web application with iphone. Ideal skills and experience: - Strong experience with Auth0 authentication - Expertise in JavaScript, specifically Node.js and Express - Previous experience in fixing login issues for web applications - Familiarity with web application security measures If you meet these requirements and have the skills to help me fix my authentication issue, please reach out to me with your proposal. Thank you.

    $277 (Avg Bid)
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    18 bids

    I am looking for a Shopify developer who can convert my existing Bootstrap theme and templates to Shopify Polaris. The application is based on Symfony and implements Twig templating. The templates currently use static Bootstrap based components, classes, and the javascript is jQuery based. The expection is to convert the static Bootstrap based HTML components into static Shopify Polaris HTML Components. Shopify also has certain design requirements. We will need to adhere to their design requirements. Design Requirements: - The overall functionality of the app will not change. - Only the page design and layouts must meet Shopify requirements to fulfill the requirement of an app designed for Shopify Functionality: - No change to existing functionality - Improvements can be discusse...

    $1083 (Avg Bid)
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    Milestone 1 --- $50 Milestone 2 --- $400 Milestone 3 --- $300

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    Front end error fixing 6 days left
    VERIFIED

    I need someone good in front end to help me fix an issue with my page, the person must be good in java script, html css and php.

    $43 (Avg Bid)
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    51 bids

    I am looking for a developer to help me create an exciting 2D Digital PVP Turn-Based Strategy Board Game prototype with Construct 3, similar to chess but the pieces are different fantasy characters. The objective of the game is simple: eliminate all of the opponent's characters. You begin the match choosing your combatants/characters and then the first player to lose all characters loses the match. Although at some point I want to make this an online PVP game, with story mode (levels with AI enemies), microtransactions (buy currency, skins. etc), achievements, quests, different game modes and more, at the moment I'm only looking for someone to help me set up a prototype of the game. So that would be creating about 20 characters, a local PVP mode (with the foundations for onlin...

    $247 (Avg Bid)
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    10 bids
    Vue Front End Development 6 days left
    VERIFIED

    I am looking for a Vue Front End Developer to implement a task bar element with basic CRUD operations, integration with third-party APIs and real-time updates. The desired design for the Vue application is modern and sleek. I would prefer to use Vuetify as the UI library or framework. The ideal candidate should have experience in Vue.js, Vuetify, and API integration.

    $202 (Avg Bid)
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    51 bids

    I am looking for a developer to migrate my simple Chrome extension from manifest V2 to V3. The purpose of the extension is to provide a page outline sidebar. The extension is currently working well with Chrome version 89 or higher, and there are no compatibility issues to address. There are no specific features or functionalities that need to be added or modified during the migration. Ideal skills and experience for this job include: -Expertise in Chrome extension development -Experience with manifest V2 and V3 -Strong understanding of JavaScript and HTML/CSS -Familiarity with Chrome API -Ability to troubleshoot and resolve issues quickly and efficiently.

    $30 (Avg Bid)
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    9 bids
    Need Shopify API to ManyChat 6 days left
    VERIFIED

    I am looking for a developer who can integrate Shopify's Orders and Products API to ManyChat. The primary goal of this integration is to bring Shopify triggers to ManyChat. Ideal skills and experience for this project include: - Strong knowledge of Shopify's Orders API - Experience with integrating APIs - Familiarity with inventory management systems - Ability to work with existing platforms and ensure smooth integration

    $289 (Avg Bid)
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    48 bids

    I am looking for a freelancer who can install and customize a Laravel dashboard design based on my inspiration. I am open to recommendations for features and functionality that will help me manage my projects and tasks effectively. Ideal skills and experience: - Expertise in Laravel framework - Proficiency in front-end technologies such as HTML, CSS, JavaScript - Ability to design and customize dashboard interfaces - Strong communication skills to provide recommendations and updates throughout the project. No need configuration with database No need configuration with front-end 1. you will recommend any dashboard them 2. customize UX just we need to know everything in dashboard before we start develop

    $203 (Avg Bid)
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    29 bids
    Scraping data from a JS site 6 days left
    VERIFIED

    Scraping Data from a JS Site I am looking for a freelancer who can scrape text data and download PDF files from a JS site. The site requires authentication to access the data, which I will provide. Ideally, the freelancer should have experience with web scraping and be familiar with JS sites. The site uses Authorization Bearer. Ideally the developed tool should be developed using c# and 4.8 Framework... other technologies and languages or frameworks could be considered as options. Skills and Experience: - Web scraping - Knowledge of JS sites - Proficiency in C# and other relevant programming languages - Familiarity with data extraction tools - Attention to detail and accuracy

    $235 (Avg Bid)
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    32 bids

    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

    $15 / hr (Avg Bid)
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    6 bids

    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.

    $214 (Avg Bid)
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    35 bids
    Btc Flash Software -- 2 6 days left
    VERIFIED

    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...

    $867 (Avg Bid)
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    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

    $148 (Avg Bid)
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    42 bids

    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...

    $647 (Avg Bid)
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    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:

    $203 (Avg Bid)
    Guaranteed
    $203
    5 entries
    Update Website 6 days 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.

    $729 (Avg Bid)
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    143 bids
    React 18 expert needed 6 days left
    VERIFIED

    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

    $17 / hr (Avg Bid)
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    62 bids
    Typescript developer 6 days left
    VERIFIED

    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.

    $17 / hr (Avg Bid)
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    lightbox php 6 days left
    VERIFIED

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

    $138 (Avg Bid)
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    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.

    $374 (Avg Bid)
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    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.

    $6817 (Avg Bid)
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    I need a api developer 6 days left
    VERIFIED

    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

    $894 (Avg Bid)
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    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.

    $852 (Avg Bid)
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    implement 3rd party API 6 days left
    VERIFIED

    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

    $203 (Avg Bid)
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    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.

    $12 / hr (Avg Bid)
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    Image API NEEDED 6 days left
    VERIFIED

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

    $35 (Avg Bid)
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    14 bids
    ecommerce community site mvp 6 days left
    VERIFIED

    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...

    $5337 (Avg Bid)
    NDA
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    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

    $54 (Avg Bid)
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    11 bids

    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

    $12 / hr (Avg Bid)
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    9 bids

    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

    $8 / hr (Avg Bid)
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    9 bids

    Api integration for our website

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    31 bids

    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.

    $130 (Avg Bid)
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    9 bids

    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.

    $562 (Avg Bid)
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    86 bids

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