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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    772 jobs found, pricing in USD

    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

    $17 (Avg Bid)
    $17 Avg Bid
    7 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...

    $27 (Avg Bid)
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    12 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.

    $166 (Avg Bid)
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    10 bids

    Develop a PowerPoint add-in for a custom organization where employees will be able to utilize the framework template presentation/icons for more information about the requirements and implementation please review the attached PDF

    $23 / hr (Avg Bid)
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    6 bids

    N8n is cloud self hosted, On webhook Request I want data that should be received on n8n My budget is Rs 500 for just 30 minutes of work

    $13 (Avg Bid)
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    7 bids
    Mautic UI Need some custom 6 days left
    VERIFIED

    Hello, We looking for an dev / designer for custom UI of mautic script. i need edit menu, change the menu from vertical to horizontal, and group some iteam to sub link. Ready to hire you now.

    $23 / hr (Avg Bid)
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    21 bids

    Hi I want to modify the atomicdex-mobile open source wallet by adding the features described in this video. The github address is here Can you do ?

    $160 (Avg Bid)
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    10 bids

    I am looking for a mobile application developer to build an app for video uploads, akin to YouTube, as well as a teaching app. The app required should be able to upload video, but I am open to anything in terms of content. In terms of the user interface, I will need both graphical and text-based elements implemented. The hiring developer must have expertise in developing mobile applications, as well as experience specifically dealing with video upload apps. Experience with teaching apps is a bonus. The necessary development capabilities should include coding, bug fixing, debugging, and other maintenance tasks. Successful completion of this project should result in a user-friendly, fully-functional mobile application on the app stores.

    $120 (Avg Bid)
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    2 bids

    I need a script to convert a custom txt file to a csv file. The project must use Python, and no database is required. The input file is a txt file. The script must be able to read the contents of the txt file, parse through that content, and then save it as a csv file. There is a clear structure to the custom txt file. I'm attaching a sample input and a sample output. To show that you are not placing an automated bid, please mention one Python function you might use for this. The input file would be around 300 MB and the script must be able to handle this. Thank you

    $23 (Avg Bid)
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    28 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)
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    12 bids

    Only bids that start with the word "Blackjack" are going to be read. If you don't know any AI library in javascript don't waste my time or yours. I want it in javascript and will not change to any other language. I need a Class code in javascript that I can give how many inputs will be received as also how many outputs will have. I don't want it to have training material as I want it to learn will testing. Like generations. The reward function will be given to know which generation will move. Very similar to how the game of snake is used as an example for ai (ej. ) The code will iterate through a multidimensional array on which I can give N numbers of inputs and will give me -1, 0, or 1 as the output but I want it to be able to have another variation of th...

    $174 (Avg Bid)
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    7 bids
    Fix Addon for Plugin 6 days left
    VERIFIED

    I created a custom add-on for a Wordpres plugin called Bookly. It should take by pass the SMS cloud notification settings in the plugin and instead use a local sms api. It is not working Need some help to get this issue fixed.

    $21 (Avg Bid)
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    7 bids

    Let say for example, I have this line of code <div><object data=""/> </div> instead of using iframe to embed , then inside , there's a href that I want to modify its value. Is there a possibility of doing that? When I inspect it in the browser I can see the href, I can perform some css style on it, but if I put that css code in my file, it doesn't do anything.

    $26 (Avg Bid)
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    15 bids

    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)
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    3 bids
    Trophy icon Build a simple GIF generator 2 days left

    Here is a simple CSS GIF I made: Using a free, stable, and legal GIF generator, please build and share a script (via JS Fiddle or something) that can capture a CSS animation. 25-30 frames per second (FPS), please. Attached is an acceptable example (I used Snagit to make it... but Snagit isn't scalable - I need to do this programmatically). It should record the smallest space possible, but get all the animation in there (we're going to be generating a lot of GIFs and it'd be nice if they were small :D). For this contest, please upload and submit the GIF you generated using your code.

    $25 (Avg Bid)
    Guaranteed
    $25
    1 entries

    we have a web game that some people use web scraps as a bot (control their chrome to do some stuff ) we need to define , block these people we can not use captcha at all , need other solutions

    $57 (Avg Bid)
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    5 bids

    I can't get the html code to render from an ACF field. The page is built with Elementor and it uses ACF to create a looping post section. The ACF options include text areas that all work fine. They work in Elementor and things look fine, however 1 field has an iframe embed code. That fields goes missing completely

    $24 (Avg Bid)
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    14 bids

    I want a php developer to check and solve of slow load of the website. Automated bids will be ignored.

    $25 (Avg Bid)
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    31 bids
    PHP Developer 6 days left
    VERIFIED

    I am looking for a reliable PHP developer to help me with a web development project. The programming language required will be strictly PHP, so experience with this language is a must. Specifically, the project will require coding for web development. I do not have any back-end code already written, so I need help with that as well. If you have experience writing code from scratch or know where to find such code, I need your help. Let's get to work!

    $145 (Avg Bid)
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    21 bids

    I am looking for an experienced freelancer to create HTML code based on an existing code LARAVEL. The desired code should be at an intermediate complexity level. The code will be used online, so I need it to be compatible with various web browsers. I'm open to suggestions and ideas on how to best get the job done effectively, as long as the end result is a satisfactory outcome. I look forward to collaborating with a skillful freelancer on this project. I NEED THE WORK DURING 3 DAYS.

    $437 (Avg Bid)
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    71 bids
    ecommerce website 6 days left
    VERIFIED

    My goal is to develop an ecommerce website for my business. I need someone who is highly experienced in the full development lifecycle of such a project, from design to implementation. Specifically, I need someone who can create a website using the WooCommerce platform. I also require help setting up my choice of payment gateway, as I am not particularly familiar with this aspect of website development. Finally, I am looking for someone who is able to deliver the website as soon as possible. my web site fully customization

    $500 (Avg Bid)
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    152 bids

    I am looking for an expandable datatable with user-defined settings similar to the one outlined here - - and explained in this video - My data relates to golf rather than horses so there are some differences, but the functionality remains the same. All the data needed for this is in a mysql table. Please confirm that you have read the guide and watched the videos in the above links.

    $495 (Avg Bid)
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    39 bids

    I am looking for an experienced Laravel API developer to build and optimize a caching system for my API. Security is essential. The task is given below: 1. We will give you a live score API. 2. You need to fetch and store the API in our server on redies memory 3. We will build the same API with the same score api response model on our own username and password. 4. we will add a time interval for fetching the API from the score API server. this is it I don't need a specific version of Laravel to be used, so the developer can choose the best one to use for this project. Thank you!

    $169 (Avg Bid)
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    19 bids
    website repair 6 days left
    VERIFIED

    we are having an issue with our site loading properly on mobile (Iphone) and the quick quote form is not functioning properly. I also need the same form that is on the home page quick quote to be updated on all pages so that it is the same on all pages. I also need to create a new more complex estimating form with more information.

    $137 (Avg Bid)
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    97 bids

    I am looking for an expert in typescript/react/+ supabase/portgresql/api to help me resolve bugs in a code. The bug resolution requires testing and debugging of the code at an medium to advanced level. If you have experience with these technologies and you are confident that you can help me fix my issues then please get in touch. I will be sure to provide detailed instructions on the nature of the bugs and what my expectations are. Thank you for your time and I look forward to hearing from you soon. Here is the url () Please run the code and let me know if you are able to fix these, and how fast.

    $50 (Avg Bid)
    $50
    3 entries
    build a weekly time sheet 6 days left
    VERIFIED

    Create a WEB BASED version of the time sheet that allows someone to fill out and print it. There is no need to save the entries (since it will be printed), however the HUMAN RESOURCES department has requested that the calculations happen on the web page (this will reduce error prone manual calculations). Build a single page mini app that presets the time sheet in the familiar(not exactly same) design I attached. Use JavaScript to perform the calculations and update the time sheet. Send me JavaScript, HTML, and CSS separately.

    $37 (Avg Bid)
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    27 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...

    $53 (Avg Bid)
    $53 Avg Bid
    8 bids
    Project Management Software 6 days left
    VERIFIED

    This is similar to any project management tool (e.g. Asana) and I need the following features: Chat - with websockets Google SSO - Azure auth service Daily Backup - later Exporter from ClickUp and importer in Snappy Automations - to send email with automations (Integration with Sendgrid) Sharing of a task Folder, Subfolders, list Time tracking from the subtask to the task and up. Tasks, subtasks, custom fields, custom status Task description should be able to hide Sharing of task with outside people Sharing of list with outside people Add checklist in the task Support attachments Forms for automation Gantt Chart

    $1475 (Avg Bid)
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    9 bids

    Build flashcards in a flashcard site that supports customized html and css. Basic html and css knowledge is required. And upload resume which contains your skills. Only US developers

    $13 / hr (Avg Bid)
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    44 bids

    Hello, I have an API java script which fires a custom conversion pixel to an ad network every time an action is completed on my webpage. However, this conversion pixel is not firing properly, and the issue is on my side. I am using the method as "GET" and the mode as "no-cors" and it is not working. My console error message says that the API call was "stalled". I'm able to fire the pixel manually by visiting the webpage however, so it's definitely an issue with my code. I'm looking for someone to fix the code so that it fires successfully. My website is located at so you can see the script in action on the homepage by viewing network details under console. I need this completed today. So please only respond if you're able to do it right...

    $18 (Avg Bid)
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    11 bids
    Prestashop project. 6 days left
    VERIFIED

    Need the following updates and fixes to our Prestashop: - activate filters on brand page - fix ajax on a custom module (it's not the cart!); - custom-plugin: - product preview from product-list: - product preview from custom plugin: - check out process: - check out process: need to manage link "termini e condizioni" - add captcha to "verify password" process; ------------------------------------- **Very Important -- READ CAREFULLY ** by placing a bid, you accept the following: - ONLY ACTUAL DEVELOPERS ARE WELCOME. NO REBIDDERS; - Money released only when the job is COMPLETELY done; - we have a test site for devs, once everything works, the job is moved to the production site for the final test; - no PS or Theme core files can be touched, everything needs ...

    $169 (Avg Bid)
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    19 bids

    Hi! Some time a go someone build a website for me. The website wasn't finished and I wasn't able to work on it for a while. Now I want to go further with the development but unfortunately the person who was building with me is not available right now. So I need a person who can help me with the next step of the site. The most important is the backend of the website which has to communicate with a mysql database. The website is build in React with Node.Js / Tailwind CSS. I am searching for someone who can work for me on a price per hour as I will ask each time some small tasks. I want to communicate in english and I will ask for a some of a guide for each task that is finished. By using the guides I want to learn to code by myself also. Please let me know when interested and p...

    $13 / hr (Avg Bid)
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    78 bids

    Dear Freelancers, we are looking to rapidly develop our GTA 5 RP Game mode based on the RAGE MP engine. We are looking for people who have previous experience or fast learners who can help us with javascript, vue3, svelte, node.js... We have all the art and UI/UX already done and now its time to bring the project to reality. Thank you for your interest and your applications

    $36 / hr (Avg Bid)
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    23 bids

    Looking for a WordPress developer to help with some coding tasks

    $25 (Avg Bid)
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    80 bids

    Reference: I would like to build a website for interactive maths courses(quiz) for specific grade. a list of courses (list of courses (topic) will be provided later)

    $2072 (Avg Bid)
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    95 bids

    Hello everyone, I need to obtain data on the 1x2 odds changes and Asian handicap odds (Spread), as well as the over/under (line) odds changes for Bet365 football matches, including but not limited to the top five leagues (with the ability to add other leagues at any time, with detailed match discussions). The frequency of data capture should ensure that when there are changes on the official website, the delay in obtaining data is no more than 10 seconds compared to the official website. The captured data should be stored in a local database (such as MySQL) and displayed through HTML showing changes in data. (I don't need to use an API to get data, what I need is to scrape the bet365 website to obtain data.) The main page is a directory page displaying league names, match times, home ...

    $578 (Avg Bid)
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    19 bids

    Hello everyone, I need to obtain data on the 1x2 odds changes and Asian handicap odds (Spread), as well as the over/under (line) odds changes for Bet365 football matches, including but not limited to the top five leagues (with the ability to add other leagues at any time, with detailed match discussions). The frequency of data capture should ensure that when there are changes on the official website, the delay in obtaining data is no more than 10 seconds compared to the official website. The captured data should be stored in a local database (such as MySQL) and displayed through HTML showing changes in data. (I don't need to use an API to get data, what I need is to scrape the bet365 website to obtain data.) The main page is a directory page displaying league names, match times, home ...

    $654 (Avg Bid)
    $654 Avg Bid
    18 bids

    We are looking for an experienced web developer for a short-term project aiming to start as soon as possible. You will work on an interactive browser App that allows users to explore data on different consumers' search engine usage. The App should allow its users to load a simple data file in a pre-defined format and provide different options to explore and visualize it interactively. Broadly, the envisioned App should provide users with functionalities such as - apply various filters to the given data - make selections - perform simple calculations (counts, means, standard deviations) based on user selections - visualize results in simple graphics (e.g., bar charts, scatterplots) - use graphics to refine selections and zoom in on the data that used to calculate them - create output ...

    $22 / hr (Avg Bid)
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    58 bids

    Hello guys. I need to add Tyl Natwest payment to our business. This is guide for tyl.

    $25 (Avg Bid)
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    21 bids

    A simple mentorship app using flutter and firebase(preferably). The main features/pages: 1. login in/sign up 2. homescreen for mentor | homescreen for mentee 3. chat feature Budget range: 70-80 USD deadline: 7.4.23 figma file:

    $104 (Avg Bid)
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    19 bids

    I have a react native project which has some bugs which needs to be fixed urgently. - Apply with Form > Render error - Chat crash due to avatar : Chat > Create a chat > Render error/ App gets crashed - Unlimited scrolling : Login > All Page (Home Page) Upon scrolling, the contents on ‘All’ page are not able to load infinitely. Only limited no. of contents can be seen on the screen. - Professional/Personal/ Financial > Any milestone > Text/Audio/Video bar on the top > Blank screen : The content is being shown when we open any milestone but when we click on the top tabs (text/audio/video), the page is blank. The requirement is that the content should be segregated into text/audio/video when we click on those tabs. Looking for a reliable person so that...

    $100 (Avg Bid)
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    20 bids

    I am in need of a talented Python Selenium developer who can complete a project within 1-2 weeks. This project will require the integration of an pass the recaptcha using python-capmonster. Expert Python programming skills are essential for the successful completion of this project. The successful candidate will be expected to provide source code and documentation upon completion.

    $16 / hr (Avg Bid)
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    29 bids

    I want a expert developer who having atleast 4 years of experience in react , css3, bootstrap 5

    $43 / hr (Avg Bid)
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    19 bids
    Create webhook for open solar 6 days left
    VERIFIED

    Create webhook for open solar

    $13 (Avg Bid)
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    4 bids
    Zapier /Chat gpt 6 days left
    VERIFIED

    Hi. I want to have a pdf with a step by step instructions how i set up Zapier to do what he does in the video i attached. All steps.

    $36 (Avg Bid)
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    16 bids

    I am looking to hire a freelancer to create a Dockerfile to run a very small app built using php/mysql (or a docker-compose works too). The environment it will be running in is Docker, and there are no resource limitations set for the Dockerfile. I am aware that this is a fairly quick job, so I am looking for an experienced freelancer to get the job done quickly and efficiently. Please let me know if you have any questions. Thank you for considering this project. The mysql database only have 2 tables and must be created and exported when I run the dockerfile THE PROJECT MUST BE FINISHED IN A COUPLE OF HOURS DUE TO THE PROJECT DOESN'T HAVE COMPLEXITY

    $20 (Avg Bid)
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    13 bids

    I am looking for someone to make minor customizations to the LatePoint WordPress plugin. Specifically, I am looking for someone to add custom features to the existing plugin. The customization should be minor tweaks as opposed to major overhauls. I am not looking for someone to integrate with other plugins, but I am open to suggestions if needed.

    $26 (Avg Bid)
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    33 bids

    Teach me software basis, terminologies and make me understand enough to manage team. PHP and JAVA

    $94 (Avg Bid)
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    9 bids

    Looking for a freelancer to set the products cards on my e-commerce site. All cards are well-designed and are printed using JSON. Message me If you're capable to do this task. More info will provided by me in Message box.

    $6 / hr (Avg Bid)
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    10 bids
    Angular developer 6 days left
    VERIFIED

    We are looking for an angular developer for a 3-4 months must have hands on experience on latest angular versions and google map apis implementation.

    $4 / hr (Avg Bid)
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    9 bids

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