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 693,663 reviews, clients rate our Javascript Developers 4.87 out of 5 stars.
Hire Javascript Developers

Filter

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

    Hi, I need someone to do small fixing on website PHP fix login register and integrate Paypal with buy credits very small I will pay low amount

    $3 / hr (Avg Bid)
    $3 / hr Avg Bid
    13 bids

    My project is looking for an experienced and knowledgeable Java/Eclipse expert to solve an issue. When I try to run my selenuim code, I face this error message: caused by: : org/openqa/selenium/webdriver I installed all depandices but still not working.. I couldn't solve it, I need expert to solve this issue on my PC remotely, and insure the code run.

    $32 (Avg Bid)
    $32 Avg Bid
    5 bids

    We have a ESPOcrm instance that has been hacked together by a past developer. We need someone to be able to implement all of the updates on our current ESPOcrm instance and make them work on the new updated instance. It is not as simple as just porting over the data as there are some fundamental issues with the current version that makes it un-updateable. Updates include adding fields, making new Entities, incorporating logic into the CRM. Perhaps some integrations with Zapier and Quickbooks. Could turn into a longer term engagement.

    $19 / hr (Avg Bid)
    $19 / hr Avg Bid
    37 bids
    Angular Project Work 6 days left
    VERIFIED

    Hello Freelancer, if you are ready to work for Angular Will discuss on chat

    $115 (Avg Bid)
    $115 Avg Bid
    20 bids

    Need to develop an ecommerce kind of website mainly with the front end only as the start.

    $84 (Avg Bid)
    $84 Avg Bid
    9 bids

    backend of my app has 8 tables in postGres database. I need someone to write node.js APIs to perform CRUD operation on these 8 table. Very basic business logic involved. Need to follow JWT authentications Detailed spec will be provided.

    $156 (Avg Bid)
    $156 Avg Bid
    56 bids

    I need a reservation script and at the same time a cost estimate. It can be programmed on a simple basis or what I prefer is on Amelia plugin for Wordpress. This is the main page of Amelia, maybe have a look first The script has two main services ( housekeeping & cleaning) and also two complete different selects and layouts. For some selection fields, a price range is displayed (no fixed price). This means that the customer can select several items and a price range will be shown. Which of course was set by me In the image with the name ( Select), the customer can enter numbers in the fields, which are also indicated as a price range. Besides that, I need a calendar that must be able to do the following - The calendar must work with the selection options and compare them with ...

    $168 (Avg Bid)
    $168 Avg Bid
    24 bids
    programmer updates 6 days left
    VERIFIED

    we use big commerce as a host, we use Kitco to supply metal values, we use our own program to compute prices we currently have an information disconnect "invalid URI"

    $144 (Avg Bid)
    $144 Avg Bid
    11 bids

    I need the site to work only with the hyperlinks with one main page like most sites. I could not figure out how to do that. And a form for quoting plus a newsletter subscription These are very minimal things but canvas doesn't give me a lot of options

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

    Don't waste your time, please don't get in touch if you can't give me a demo

    $180 (Avg Bid)
    $180 Avg Bid
    10 bids

    Simple bugs needs to fix in a PHP, Smarty project .

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

    Hello, We are a startup based in Belgium focusing on providing digital tools for travel professionals across the globe. I am the co-founder and I am in charge of all IT services. We are searching for a (part-time or) full-time Frontend JavaScript/TypeScript developer to help take some burden off of me. We have many different and versatile projects (both bigger and smaller projects) currently sitting in our pipeline. We are searching for someone that not only wants to finish the projects but also thinks critically about them in order to help grow the company. We are very open to all kinds of new ideas such as new internal or external projects, new ideas to further automate our IT services/infrastructure, new tools or technologies, … Some of the current tools we are using: ExpressJS ...

    $7 / hr (Avg Bid)
    $7 / hr Avg Bid
    29 bids
    Create hash code generator 6 days left
    VERIFIED

    I am looking for someone to create a hash code generator for an existing word game web app. A simple code to verify a player has not cheated The completed product should be easy to use and able to generate a safe and secure hash code. Hosted on Heroku and made using Node.JS. The project should be completed to a high standard, with reliable coding practices and industry-standard methodologies. I am looking for someone that has experience in coding similar functions, as well as frequent and reliable communication throughout the project to ensure I am updated and happy with the progress. Thank you for taking the time to read this brief. Please get in touch if you have the expertise and knowledge to complete this project please see the attached full specification.

    $64 (Avg Bid)
    $64 Avg Bid
    11 bids

    I have a very very small, simple website. It has 5 pages. Most of the content is updated weekly. What I have so far I hand coded in HTML/CSS/JS. It is very functional and provides the data displays I want. However, it looks horrible. I really need someone that can come in and spruce it up a bit so it looks nice. Most pages are HTML tables with some basic CSS formatting that report data, again updated each week. So I'd like to see those look as nice as possible, I'd like the site to work better on mobile, and I'd like some images tossed in that are on theme. I can cover theme and show what we have so far down the road.

    $28 (Avg Bid)
    $28 Avg Bid
    27 bids
    MERN PROJECTS 6 days left
    VERIFIED

    Project 1 - Btlo Panel - Front End & Backend with Mongo Database- 10k Screens only for Mobile View - Backend & Front end with Mongo Database 10k Tech Stack - MERN Project 2 - D App Admin Panel Front end - 10k Panel & API Backend (only 3-4 small) - 10k Tech Stack - MERN Project 3 - AITOO Panel reuse from above admin panel and changes - frontend + backend - 15k (10-15) medium to small)- 10k Hi , we are also an IT company , we have multiple projects and we outsource the developers for our client projects we have 3 projects in pipeline , pls share if you can do it , we can work on more in future if you give 100% service satisfaction. Note : budgets are fixed , only minor changes are possible thanks

    $331 (Avg Bid)
    $331 Avg Bid
    16 bids

    Hello, I am looking for a freelancer to help me with a real time option greek value with customised calculation. Specifically, I need someone to help me calculate vega, theta, and delta values in real-time. Additionally, I require customisation in the calculations. Finally, I need the output of real time option greek values to be delivered via an API. If you have the necessary skills and can complete this project, please reach out!

    $84 (Avg Bid)
    $84 Avg Bid
    1 bids
    progressive web app 6 days left
    VERIFIED

    so we require an app in stages. stage 1: user signs up to app and they will use this to send consent forms to their clients for them to sign and it comes back to them to save the record within `app. the consent forms will all be standard and the only part which changes is when they select a certain utem and it then loads the pre filled terms super admin has made. us as super admin can add features to the consent forms like the terms for each product etc. we will be adding many other features as this grows with you so think long terms we will disclose more via DM

    $16 / hr (Avg Bid)
    $16 / hr Avg Bid
    31 bids
    immobiliari -- 2 6 days left

    create web base application of document management and flow related to real estate following link provides the mockup. need quotation and time.

    $17 / hr (Avg Bid)
    $17 / hr Avg Bid
    29 bids
    Fix HTML + JS animation 6 days left
    VERIFIED

    HTTPS:// When you scroll down on chrome there are glitches in the animation. When you click on “who we are” from the menu the homepage loads and then freezes on safari

    $128 (Avg Bid)
    $128 Avg Bid
    49 bids

    I'm looking for a developer to create an informational website for me. I already have existing content that I want included in the website, but I also need special features added to make it stand out from the rest. I'm therefore looking for someone with experience in developing websites and can help me create a website that will capture my audience's attention and entice them to take action. I look forward to working with someone who has a great eye for design, the perfect coding skills and a knack for understanding my project needs. Thank you for your time.

    $447 (Avg Bid)
    $447 Avg Bid
    61 bids

    I'm looking for someone to help me with a project involving option chain and its greek analysis using python and excel. Specifically, I'm interested in someone who can develop Python scripts based off my requirements, as well as provide me with an Excel spreadsheet containing the necessary information and/or graphs. Additionally, I need the Greek values to be calculated in the process as well. Ultimately, I'm looking for someone to create one single option chain and its associated greek analysis with my own customised calculation

    $134 (Avg Bid)
    $134 Avg Bid
    9 bids

    I am looking for an experienced backend developer to help me with fixing a bug in my existing module. The module is working on the Yii2 framework, but I'm not sure which version. You will need to have expertise in Yii2 to complete this project. I already have a hosting service, so you won’t need to arrange that. However, there may be other code optimization or new modules required. If so, these will need to be discussed before the project starts. If you feel confident you can solve my problem quickly and accurately, please get in touch. I look forward to hearing from you.

    $15 (Avg Bid)
    $15 Avg Bid
    4 bids
    Flutter - IAP 6 days left
    VERIFIED

    We updated our fitness app and asked the dev to add IAP subscriptions. It's been 8 weeks and still no good. We have an admin area (php) where price points are loaded. Users selecting a Pro area are directed to Upgrade page where the Price points load. Select price option. Pay. On confirmation upgrade user to pro. Redirect to home page. Receipts need to be checked on login to see if the user is still paid (cancelled, refunded, chargeback). If no payment then downgrade user. pls start your proposal with API

    $27 (Avg Bid)
    $27 Avg Bid
    2 bids

    We are integrating Keycloack with our product and to speed up this activity we are looking for Keycloack and JAVA experts to support the team. Is important a good knowledge of Keycloack.

    $34 (Avg Bid)
    $34 Avg Bid
    4 bids

    I'm requesting that you compile my android webview app for me. This android webview app converter is built with Flutter and an Admin Panel. Please keep in mind that I need someone who has experience in Flutter WebView Converter, to compile the apk. I have a limited budget and can only offer $10 for the APK compilation. If you're not willing to accept this offer, please don't bid on the project. I'm hoping to have this completed within 24 hours and only want serious freelancers to bid. Please note that below is the documentation URL tells you how to compile this app in 5 minutes. Only bid if you're confident you can complete the project within 26 hours. I WILL ATTACH APK INFORMATION IN CHAT...

    $25 (Avg Bid)
    $25 Avg Bid
    2 bids

    Seeking an automated QA testing expert that has vast experience testing web-based applications with Angular, Python, HTML, CSS, and cloud database (Google). Would like to know your preferred automation software (Selenium, Pytest, Cypress, JMeter, or other) and your number of years of experience. We are nearing our beta launch data and would need this to be completed almost immediately. The following is a common checklist that we'd expect you to complete: 1. Compatibility testing / Ensure Cross Browser Compatibility: Ensure the app is responsive on all common browsers. 2. Performance testing / Test for Responsiveness: Do load testing to see if it crashes under different scenarios. 3. Functionality Testing: Check all of the different components of our web app, including links, forms, ...

    $21 / hr (Avg Bid)
    $21 / hr Avg Bid
    23 bids
    looking for nexjs developer 6 days left
    VERIFIED

    looking developer who good in nextjs and typescript only expert apply and submit ur posrtfolio

    $344 (Avg Bid)
    $344 Avg Bid
    16 bids

    Dear Team, We are looking for a NodeJs developer who can integrate the ABHA APIs (A system where user can login and insert and get their health records). Please check the sample attachment of APIs there are total 60APIs we need to integrate. I am looking for only and only experienced person who can devote 40-50 hours a week and can get them really quickly. The person must be good in English and only Indian candidates need to apply. Write PHR in the bid otherwise I will ignore the bid.

    $766 (Avg Bid)
    $766 Avg Bid
    19 bids

    I am looking to have an app developed using Python, designed for the web platform. The purpose of the app is to provide automated services for users, who will be able to interact with it through text inputs. It should be able to store data securely, so that any information entered into the application is stored safely. I am looking for experienced developers who possess expertise in Python and app development, and can design the app from start to finish. for reference

    $313 (Avg Bid)
    $313 Avg Bid
    14 bids
    fix wordpress 6 days left
    VERIFIED

    I need to correct two problems. 1. When I fill in the data in the user's frontend, it does not save the information 2. I can't send message with the plugin: WP Guppy

    $7 / hr (Avg Bid)
    $7 / hr Avg Bid
    41 bids

    We are looking for a number of Scrapy Developers to join our team and help us collect meeting agenda, minutes, and videos from various municipal websites. The successful candidates will be responsible for identifying the location of the council meeting documents and videos, and developing or assigning appropriate Scrapy spiders to extract the data. Responsibilities: - Navigate municipal websites to find the location of council meeting documents and videos - Develop Scrapy spiders to extract the data from the identified locations - Assign existing Scrapy spiders (if available) to extract data from known hosting providers Requirements: - Proven experience in web scraping using Scrapy or other frameworks - Strong knowledge of Python programming language and web technologies (HTML, CSS, Ja...

    $2346 / hr (Avg Bid)
    $2346 / hr Avg Bid
    12 bids

    Enhancements required in AI models, python script/javascript for existing project. Image processing experience is must required for this task. Full requirement of the task will be discussed over a call.

    $443 (Avg Bid)
    $443 Avg Bid
    14 bids

    I want to be able to ad custom messages when i turn on my sandisk sportclip mp3 player. I want the message to show on boot screen when i turn it on. Simple text message that i can customise. I can provide the system image (.iso) that you can flash onto a sd card and work on it. The mp3 player have no hard drive, so The sd card is the system of a sandisk mp3 player so thats all you need. I can provide short clips with how its starts stock and how i want it to start.

    $190 (Avg Bid)
    $190 Avg Bid
    10 bids

    I'm looking for an experienced Java programmer and developer Remote Position Full Time to assist with a project I'm currently working on. Specifically, this project requires the creation of a web application using the Java language. The code base is completely new, so someone who is capable of starting from the ground up is pivotal. In addition to programming and development using Java, knowledge of other technologies such as PHP, CSS, and MySQL will also be required. Any successful candidate must have a strong understanding of all these languages and frameworks as they will likely be required at some point during the project. I need someone well-versed in the Java language and perfectly comfortable with developing complex web applications. An eye for detail, creativity, and a...

    $779 (Avg Bid)
    $779 Avg Bid
    14 bids

    I'm looking to create an e-commerce website for my business and need help finding a hosting platform and additional services like SEO. My business is called TimberBuddy and I thought that creating an e-commerce website would be the best way to connect with customers and showcase our products. I understand the importance of SEO and want to ensure that I'm doing everything I can to market my business and draw in new customers. I'm looking for someone who can help me with this project and provide the best hosting platform and SEO services. I want my website to be engaging, informative, and easy to use. I'm hoping to find someone who can provide me with these services at a reasonable cost, so I can make sure my project is successful. With your help, my goal is to create a...

    $374 (Avg Bid)
    $374 Avg Bid
    10 bids

    we want to develop dynamic website, for our sport ed the company points are as follows I am reaching out to request a proposal for the development of a dynamic website for our sports ed tech company. We are looking for a developer who can design and create a website with full features like payment gateway, application platform, video content, and other features required for our company. Our goal is to create a website that is engaging, user-friendly, and dynamic. We want our website to be the go-to platform for our users to access all the information about our services, products, and content. We would like to know more about your experience in building dynamic websites with these features. Please share your portfolio and any relevant information about your experience in developing websi...

    $148 (Avg Bid)
    $148 Avg Bid
    16 bids

    Tipos de traducción Traducción de texto DETECTAR IDIOMA ESPAÑOL INGLÉS FRANCÉS INGLÉS CATALÁN ESPAÑOL Texto original Tenemos una web que ya existe, y que tiene campos generados con Advanced Custom fields. Uno de estos campos es una dirección de email. Otro de los campos es un checkbox con 14 opciones. Necesitamos que, cada vez que desde el administrador del post se active uno de los checks de este ACF y se actualize, el post con este cambio, el sistema mande un email al correo del ACF antes mencionado notificando del cambio. Cada opción del checkbox tiene que enviar un texto de email distinto. Ejemplo: ACF email: - hello(a) ACF Checkboxes: - Estado 1 - Estado 2 - Estado 3 - Estado 4...

    $146 (Avg Bid)
    $146 Avg Bid
    18 bids

    Looking for a chatgpt bot to create users in Active directory using information from jira tickets

    $15 (Avg Bid)
    $15 Avg Bid
    6 bids

    In this page we need to autocompile the hidden field identified by id="custom_referral_code" that is present in this code row: <input type="hidden" name="custom_referral_code" id="custom_referral_code" class="form-control" placeholder="referral_code" value="null" style="pointer-events: auto;"> The value must be the Google Tag Manager variable {{referral_code}} that is already present in the page and that is picked from the URL parameter ref (in the example, the ref parameter is 9c59b). So, in the example where the ref=9c59b and the GTM dataLayer variable {{referral_code}} is 9c59b, we need to obtain this final row autocompiled: <input type="hidden" name="custom_referral_code" id=...

    $8 (Avg Bid)
    $8 Avg Bid
    1 bids
    NextJs APIs intgration 6 days left
    VERIFIED

    Have NextJS project already complete UI Flow, need to integrate APIs

    $125 (Avg Bid)
    $125 Avg Bid
    27 bids
    Flutter - IAP subscription 6 days left
    VERIFIED

    We updated our fitness app and asked the dev to add IAP subscriptions. It's been 8 weeks and still no good. We have an admin area (php) where price points are loaded. Users selecting a Pro area are directed to Upgrade page where the Price points load. Select price option. Pay. On confirmation upgrade user to pro. Redirect to home page. Receipts need to be checked on login to see if the user is still paid (cancelled, refunded, chargeback). If no payment then downgrade user.

    $13 (Avg Bid)
    $13 Avg Bid
    2 bids

    We are using the Multi-Vendor Marketplace app in our Shopify store to enable sellers to have accounts to manage products and inventory and sell them through our platform. Each seller can set a minimum order value as a restriction for accepting orders. Currently, when a buyer adds products from a seller to their cart but doesn't meet the minimum order value, they are unable to proceed with the purchase, and an error message is displayed. We would like to improve the way this alert is shown to create a better user experience. Project requirements: Customize the Multi-Vendor Marketplace app's cart alert for minimum order value requirements. Create a clear, informative, and user-friendly alert message that informs the buyer they haven't met the minimum order value for a speci...

    $72 (Avg Bid)
    $72 Avg Bid
    15 bids

    Software that connects an SQL database to Shopify inventory and orders using the Shopify API. Take the query of the balance line every 30 minutes and subtract every incoming order from that value. When the value reaches zero make every product go out of stock till a sufficient balance is returned.

    $1144 (Avg Bid)
    $1144 Avg Bid
    59 bids

    International company specializing in ethnobotanical plant products with several e-commerce websites and a logistic/production hubs is looking for a FREELANCE WEB DEVELOPER WITH EXPERIENCE IN ODOO to join our team. Essential knowledge: - Odoo development: +2 years - Phyton: +2 years - PostgreSQL: + 2 years - Version control experience GitHub/git, bitbucket: + 1 year Complementary knowledge: - HTML/CSS – 1 year - Javascript – 1 year - Bootstrap – 1 year - Linux Command knowledge – 1 year - Odoo website and accounting modules – 1 year - Wordpress - Woocommerce - PhP Fluent English knowledge is a must for this position Working Timezone GMT...

    $13 / hr (Avg Bid)
    Local
    $13 / hr Avg Bid
    10 bids
    Build backend (small project) 6 days left
    VERIFIED

    i need a js developer with knowledge of , MongoDB, Stripe Connect, and complex algorithms. the tasks needed done are listed in the below Trello board:

    $34 (Avg Bid)
    $34 Avg Bid
    6 bids

    We need the fullstack developer who works on JavaScript for front end and back end development. Work: Adding subscription module to vendors panel and adding event module to existing website to show particular event on particular occasion.

    $280 (Avg Bid)
    $280 Avg Bid
    15 bids
    Wordpres plugin or code 6 days left
    VERIFIED

    I want to put in my site the option for NFC to write the user the data profile on the NFC chip. I'm open for plugin or code to add on the page

    $45 (Avg Bid)
    $45 Avg Bid
    13 bids

    EST Time zone is Mandatory Looking for a senior technical project manager who is a coder and has expertise in delivering applications in Python, Php, JavaScript, mobile applications and other web technology. You will be responsible of giving over all solution architect for each project, We get a lot of projects and we need someone who can give solution and estimations for the project and can do research to close the sale. Areas of handling Tech: 1. Php frameworks 2. JavaScript framework 3. Mobile apps - Native and Hybrid 4. Python frameworks 5. Depth knowledge abt existing tools like, crm, ERP and other SaaS to integrate and give solutions Process: 1. Agile Scrum 2. CI/CD

    $21 / hr (Avg Bid)
    $21 / hr Avg Bid
    34 bids

    Performance evaluation of hyperledger based on transaction time, no of transactions, CPU usage, etc.

    $24 (Avg Bid)
    $24 Avg Bid
    1 bids

    I want to implement affiliate company's website and I am looking for someone who has deep knowledge and skills and experiences about affiliate project and who has ex-project about affiliate system. Let's talk more more on chat. start with your bid with this letter. (^_^)

    $19 / hr (Avg Bid)
    $19 / hr Avg Bid
    17 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