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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    I have large time tracking app service. I am looking for experienced Yii2 developer to join team. With deep experience of Fullcalendar.io. We have now Task Sheluder but we need second module: Work Time Sheluder for employees (shift planner for factories/restaurants/etc). Current solution is based at Fullcalendar, if you have any other better solution please let me know. Please bid only if you are experienced with similar task and you are able to show your work.

    €17 / hr (Avg Bid)
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    looking for expert developer 6 ditë left
    VERIFIKUAR

    Hello Champs, Searching for someone who can develop a non scrollable static website. There are multiple column base pages but it will work as a slide. Website pages should change column by column on : Laptop / Desktop :- 1. Up/Down Key 2. Touchpad swipe up/down Mobile / Tab :- 1. Swipe up/down Website look will be same on all screens. Website content (text and images) should be editable easily by developer. I you read this then please write "I agree" and then bid.

    €92 (Avg Bid)
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    We have implemented Posthog in some apps however I want to be able to capture more events like a hover event and a few other things ideally without making changes to the underlying application, just config changes on Posthog side. Would be looking for an expert to help us get this done and be our go to person for questions like this moving forward. Please state your experience with Posthog, clickhouse and what is 5+5= so I know you are not a bot.

    €32 / hr (Avg Bid)
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    29 ofertat

    We're looking for a Chrome extension expert for affiliates and new tab extension.

    €6 / hr (Avg Bid)
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    5 ofertat
    VIN decoder scraper 6 ditë left
    VERIFIKUAR

    I would like a MAC-compatible python script that works as follows: 1- I would like to upload a csv list of multiple vehicle Identification numbers or VIN# (see sample ) 2- I would like to enter each VIN in the list on this website 3- I would like to extract all vehicle information fields for each VIN (see attached ) 4- Export a csv file including all extracted fields for each VIN on separate lines and columns See attached file **Script must be MAC compatible**

    €12 (Avg Bid)
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    Hey - i have an idea for a small plugin for shopware 6 (and 5) and if you have time i would like you to look at it and tell me if you can do it. The Task is to create a plugin, that connects Shopware with Reviewforrest. Reviewforrest is a system to collect reviews for google and amazon. For every Review the account owner plants a tree. The Review Forrest App offers a system to send mails to the clients and to place widgets on a website. We dont need to take care of this. More Details are in my pdf.

    €431 (Avg Bid)
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    Trophy icon Website functionality flow chart 6 ditë left

    Hi I require a flow chart to show the layout and function of each page of website

    €33 (Avg Bid)
    I garantuar
    €33
    0 kandidaturat
    Design an E-commerce Website 6 ditë left
    VERIFIKUAR

    I am looking for an experienced designer to help me Design an e-commerce website on the Salla Platform, based in the Twig Engine Template (Symfony PHP). I have an existing brand style guide to follow, so you should be familiar with it. I have the a Demo Website so you can put your Design Directly without Creating new Pages or anything else. So, The functionality is already present, so the primary focus of this project is the design. The things that the Designer should have experience with are: Twig Template Engine, Java Script, CSS and etc Also there are a Documentation can help you with your work. The requirements is on going and can result in to long term project. Experience of 2-4 years in the relevant field and should have successfully completed minimum 10 websites. If you have...

    €193 (Avg Bid)
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    Goldsvet 8 Project 6 ditë left
    VERIFIKUAR

    I'm looking for a specialist for Goldsvet 8. They should be able to make changes to the script. I want to build a social casino out of it. where the player can build villages with points gained and also gets trading cards for various prizes. the fontend and admin panel would have to be adjusted as well as the backend. Only programmers coming or resident from Poland, Cz, Slovakia, Hungary or Romania. You should already have a lot of experience with goldsvet.

    €19 / hr (Avg Bid)
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    Crypto Wallet 6 ditë left

    I want an experience developer to work on this project for me. A crypto wallet that has everything can send, receive, store and convert crypto coins. That support coins like: bitcoin, ethereum ,shiba, matic, bnb, and other 10 of it. It must be able to generate address and private keys. Must be secured and be able to go on the blockchain.

    €826 (Avg Bid)
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    i want expert wordpress or skill like html css or javascript.

    €48 (Avg Bid)
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    verification 6 ditë left

    focus to need the reac native developer ( type script) - Need to develop and modification in frontend - and integrate the frontend to wrap it tonite itself ( willing to work in late night also today nite ) to complete the requirments

    €64 (Avg Bid)
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    Good afternoon, We are developing a site that will correctly indicate the time and weather depending on the choice of place and time. We are looking for a talented and agile developer who can fix and improve the plugin for selecting drop-down data on the page in the shortest possible time. Link to the site: You can always get more detailed screenshots and information in private messages, looking forward to your reply!

    €139 (Avg Bid)
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    I am looking for a freelancer to create a website where I can invest USDT. I need a website that has investment capabilities and has the ability to offer automated trading and user account and login functions. Additionally, I require a secure payment system. I am not sure if I have existing software or technologies, so I'm open to suggestions. If you believe you have the experience and technical ability to create this website, please don't hesitate to get in touch. Thank you!

    €150 (Avg Bid)
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    Hello, I am looking for an experienced React UI and Javascript Developer to join my team in a long-term position. The exact duration of the engagement is yet to be determined, but I anticipate it will exceed 4 months. As the React UI and Javascript Developer, you would be responsible for developing both UI components using React, as well as writing robust Javascript for the application. It is expected that you have prior experience in both React and Javascript Development. If this sounds like the kind of opportunity you are interested in, please apply for the role! Experienced of working on atleast 2 react/javascript UI projects

    €19 / hr (Avg Bid)
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    I need help with uploading whole TV series in the form of embed links only. No compression is required, but the format of the media files should be MP4, AVI or MKV. I would like all of the series to be uploaded to a cloud storage drive and any additional software which is needed should be clearly indicated. I am looking for an experienced and reliable source of help with this project.

    €67 (Avg Bid)
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    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: 50 USD - Fixed. Thanks in advance.

    €45 (Avg Bid)
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    Hi There, I want inventory Management system using php and mysql.. Budget:- Rs:-20000-25000 (Indian Currency) 1. Edit the product 2. Add Invoice(Invoice generate) 3. View all Products with CRUD operation also with barcode generate 4. Views all the invoice with bill generate base on discount 5. Report generate (5.1 Date wise report, 5.2 Products Quantity Report) 6. Import & Export of Excel files

    €272 (Avg Bid)
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    Automated video making tool 6 ditë left
    VERIFIKUAR

    Hey, I need a tool that will automatically make videos for me from a selection of video files/pictures & songs. The tool will have options to choose the video files/pictures & songs randomly or manually, it will adjust the length of the videos/pictures to fit the length of the songs. It needs to have a UI, be easy to set up between multiple computers. For example using FFMpeg The tool needs to be able to: • Randomly pick 1 video file or picture & randomly select X amount of songs, then automatically trim the length of the video/picture to fit with the song in the final render • Randomly pick X amount of video files and stitch them together & randomly select X amount of songs, then automatically adjust the length of the videos to fit the songs in the final re...

    €195 (Avg Bid)
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    I need someone to configure the tooltip for existing plotlines with Highcharts. Rite now, tooltip is shown only for the first plotline. Task is to make tooltip show for all plotlines. This is a blazor project, so you will be working in c# and bit of JavaScript. The ideal person for this project should have experience in configuring Highcharts tooltip for plotlines and c#. The configuration required is for the tooltip only and does not involve the creation of new plotlines. I already have plotlines that need to be worked with. Budget: 30$

    €20 (Avg Bid)
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    Hello, I am in search of an experienced database developer who can design and develop a NoSQL database. Ideally, the developer would have an expertise in node js to produce the best end results. Expertise in this field is essential as I need the highest quality product. Therefore, I am looking for a sophisticated database developer with an expertise in NoSQL, node js, and a comprehensive knowledge of database development. If you think you have the skills and knowledge necessary to take on this project, I look forward to hearing from you. Need to create tables, write complex queries.

    €2 / hr (Avg Bid)
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    Imagine you're in a train and you realise that you'll need to get a porter at the destination station to carry your goods. Today, the model is to deboard the goods by yourself and then even sometimes have to wait for a porter standing at the platform. So, what we'll do is that you just have to enter the train number and name you're in along with your Coach+Seat No. As soon as you do a booking, the porter will be ready to deboard your goods and take you to your desired location as soon as your train touches the platform. This will save a lot of time and labour for the passengers. In the future, if IRCTC supports us, we can build a platform where you just need to enter your PNR number and all your details will be fetched in a blink of an eye. Now, to answer the most relev...

    €94 (Avg Bid)
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    Angular js 6 ditë left
    VERIFIKUAR

    Deep Knowledge on AngularJS. Implement complex Angular applications, directives, controller, and services Extensive knowledge of JS methods for providing performant visual effects Proficiency with Modern OOPS JavaScript and HTML5 Creating Self-contained , reusable and testable modules and components Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed Understanding of REST services. Creating custom, general use modules and components which extend the elements and modules of core AngularJS Experience with technologies like AJAX and DOM manipulation techniques. Knowledge on bootstrap will be addons

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    Need a website with Razorpay payment gateway integration

    €102 (Avg Bid)
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    I need the python and OpenAI coder for multiple jobs. Details will be discussed.

    €6 - €62
    I vulosur
    €6 - €62
    10 ofertat
    Simple Django Web App 6 ditë left
    VERIFIKUAR

    A UTMs links generator web app that use Vue for the front end and Python Django for the backend and Tailwind for CSS. The App has a Homepage, Features and Signup. When the user is logged in, the log into a dashboard where the user type a url, pick the UTM parameters. Links generated could be viewed in another page Solo developers only, no agencies

    €503 (Avg Bid)
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    web app needs to connect with DB,at DB we stored data related to some survey that information need to visulize on backend need python and front UI (use html,css,php,JS etc)

    €15 (Avg Bid)
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    I've taken on a project developed by somebody else. It has a page that makes use of a vue file, where there are some fields to select parameters for a chart that is rendered based on the provided parameters. I've managed to add an additional dropdown but when the form is submitted, the new dropdown's selection does not get submitted with the rest of the GET variables to the code that renders the report. If you know vue and laravel and nova, you will probably be able to spot the issue and help me correct it quickly. I suspect there must be a place where I need to specify the field name and tell the system to send it along with the another variables, but I am not sure what the correct way is to do this, and where to do this.

    €28 (Avg Bid)
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    Hi, I want a surebet/valuebet bot connected to BetBurger API. I want the bot to place the surebet automatically on the bookmakers websites. I use a few bookmakers Fortuna, Bet365, Betfair Sportsbook and Tipsport but I will add more with time. So anyone able to do a bot that places sure bets from Betburger on those 4 bookies?

    €1231 (Avg Bid)
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    Website Updation 6 ditë left
    VERIFIKUAR

    bug fixes on my webite & few other updations

    €13 (Avg Bid)
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    8 ofertat
    Simply my form for add product 6 ditë left
    VERIFIKUAR

    I am looking for a professional freelancer to help me create a simple form for adding products. This form will include a single item field of text and no submit button. I am hoping to quickly have this form created in order to streamline the process of entering products into my database. I am looking for someone to provide time-efficient service, accurate and reliable results, and competitive rates, so if you possess these qualities and have experience with creating forms, please don't hesitate to reach out! Thank you!

    €7 / hr (Avg Bid)
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    Dicom image text remove 6 ditë left
    VERIFIKUAR

    Dicom image text remove software or script needed.

    €17 (Avg Bid)
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    We are setting up software company and need primarily static website.

    €83 (Avg Bid)
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    Hello We're looking for a designer who can build animations similar to the below sites: -monday . com -edufront . co . in / a-day-in-the-life If you are confident in building animations like these, we can discuss them. If you've samples of work where you made animations like the attached files, please share. We'll share the requirements on a daily basis and milestones will be created for 1 object at a time. thanks!

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    We're aiming at building our new website sign-up/in process. Mock-ups are available, but some technical details still have to be defined. Technologies we're already using: * * next-auth (not strictly required) * tailwind * typescript (full typesafety) * firebase for storage (not strictly required) * vercel for hosting (not strictly required) We're also considering using tRPC and Prisma. Functionally, we want to achieve this: * sign-up/in with email, FB, Twitch, Google, and maybe more * possibility to associate multiple social IDs to the same account * multiple social IDs take to the same "local" account * the sign-in process follows a defined onboarding flow * password reset/recovery * user profile * user profile editing * user public profile * i18n * responsivene...

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    My organization is looking for an expert web developer for our Augmented Reality project. We are looking for an experienced individual to lead our development team and build out a comprehensive web app that meets our vision for this project. We expect the project to take more than three months to complete and as such we need an individual who has a thorough understanding of web development best practices and current trends in technology. Additionally, no additional expertise or skill-sets outside of web development are required for this project. If you are an experienced developer looking to showcase your talent in a cutting-edge project, please submit your application to this listing. Please check this service. the full body tracking. If you show me any of your past work, I will hire ...

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    I need a landing page for my company, preferably front end should be React.

    €250 (Avg Bid)
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    Build me an app 6 ditë left
    VERIFIKUAR

    Menu Push notification Reservation Calendar Biorhythm chart made by above calendar Analysts turned out after survey video contents

    €11 / hr (Avg Bid)
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    Django Web Development 6 ditë left
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    Develop a ui interface with the same layout as , deploy it on your own server, and support account login. When registering, it supports adding an invitation code to register. It needs to support the api interface of chatgpt to realize Realize the same chat effect as chatgpt by calling the interface

    €171 (Avg Bid)
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    we need a Shopify plugin / extension that when clicking on product details for a product in the catalogue will open an iframe with a webpage from another website. This other website will have a builder that lets the customer create a personalized design of a product. The other website page needs to be able to make an API call or Javascript call in order to tell the Shopify plugin that the customer is done with his design and also send price and other specifications in a JSON. The Shopify module will then make a second call to the other website in order to download an image of the personalized product and update the Shopify shopping cart with this image and the price that is returned when the other website notifies Shopify that the design is ready.

    €1155 (Avg Bid)
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    soft breeze 6 ditë left

    I am looking to build a website for my business called Soft Breeze. I already have a specific design in mind for the project, so this should help make the process much easier. I am also looking for technical support for both during and after the website’s launch. I will require assistance from the developer to make sure the website runs efficiently and that any issues or problems are solved quickly. Therefore, I'm hoping to find a reliable and experienced freelancer who can not only deliver the website to the highest standard, but also provide the necessary support.

    €38 (Avg Bid)
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    I need a web platform for real estate business

    €11 / hr (Avg Bid)
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    We have a registration form hosted on our website. which collected all the information and generated an instant e-badge to our event as well as sent an email with the e-badge along with other information as well. New changes to Form Verison 2.0- We want to take it to the next step. 1. updating some form fields and adding more. Like: - State, cities etc. - adding a (check for robot) 2. Connect it with WhatsApp - Instant badge post form fill goes to WhatsApp so we can send promotional WhatsApp messages for future events as well. 3. Better backend to be able to edit more content. - Like adding or removing fields as per our wish. - Button to send email or WhatsApp again if someone didn't receive it. 4. E-badge redesign - redesigning our e-badge. and other more changes as wel...

    €91 (Avg Bid)
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    Implement a user sign up/ sign in feature (username, email, password) on React Javascript webpage and connect to backend AWS Amplify Cognito user pool and DynamoDb tables. Cognito and DynamoDb is already connected to an existing iOS app. Requirements: 1. Backend AWS Amplify. 2. Frontend React, Javascript, HTML 3. Yarn, NPM as my project deploys to production with these tools. Bonus requirements: If you are familiar with iOS swift and objc, that will be a bonus as you can ramp up on my project's architecture more quickly.

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    We are currently seeking a talented Typescript Backend Developer with exceptional problem-solving skills to join our upcoming drone grocery delivery startup. Despite this project being posted on a freelance platform, we want to clarify we are not searching for only a freelance job. Instead we want to collaborate with you in the longer term in order to build a company committed to creating innovative solutions to revolutionize the way we shop for groceries. As a Typescript Backend Developer, you will be a crucial part of our team and will have the opportunity to work on cutting-edge technology that has the potential to shape the future of delivery. You will be responsible for designing and developing the backend architecture of our drone delivery app, ensuring its performance, security, an...

    €36 / hr (Avg Bid)
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    I'm looking for someone to develop a custom betting calculator for me with specific features. The calculator needs to perform odds calculations, so I need someone with expertise in this area. Additionally, I'm open to hearing about any custom features or ideas you think might be beneficial. In addition, I'm considering the possibility of integrating this calculator with existing software, so I'm definitely open to talking about options here as well.

    €406 (Avg Bid)
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    I am looking for a Nextjs developer with experience in Typescript to work on a medium complexity project. The timeline of the project is more than 4 weeks and the expected tasks focus on implementing features into an existing codebase. If you feel you are fit for the job and have the skills necessary, I would love to hear from you. I need someone who is expert in react with nextjs also use typescript in whole project.

    €14 (Avg Bid)
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    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 ...

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    My website traffic has decreased after AMP plugin activation. It is still decreasing although I removed the plugin. I need removing all these AMP effects on website

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    It's an water tanker application project, It's already running on. Now we want to track the Water Tankers on admin panel. You just have to Integrate google map or Map my India API's. Our admin panel is in PHP.

    €127 (Avg Bid)
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