What Is JavaScript? JavaScript is a scripting language used to enable programmatic access to objects within software applications. JavaScript will make your website more interactive, allowing your users input information, move elements around on the page, and make your website more functional.

If you are a JavaScript guru, can finish tasks with high level standards and in a timeless manner, then this is the right place for you! Freelancer.com supplies JavaScript freelancers with thousands of projects, having clients from all over the world looking for having their job done professionally and settling for nothing but the best. Jobs vary from building a dynamic web & desktop applications to fixing errors and malfunctions with Scripts. Those clients are looking for someone like you to get the job done. If you believe you can do that, then start bidding on JavaScript project and get paid with an average of $200 per project!

828954のレビューにより、クライアントは星5個中 Javascript Developers 4.85/の評価をしました。


    769 仕事が見つかりました。次の価格: USD

    Come da titolo, sono in cerca di uno scripter per un nuovo server. Contattatemi su telegram @ruddy222

    $31 - $260
    $31 - $260
    0 入札
    Need a core PHP developer 6 日 left

    Hello, I am using a ticketing tool in which I need to make few changes. The ticketing tool is made of PHP and Mysql.

    $4 / hr (Avg Bid)
    $4 / hr 平均入札額
    27 入札
    Plugin para Gestión de envios 6 日 left

    Crear un plugin con funciones especificas para la gestión de envíos, usar el plugin local delivery driver como referencia en el archivo adjunto coloco las funciones.

    $270 (Avg Bid)
    $270 平均入札額
    9 入札

    We are looking for experienced developers with ReactJS. We will inform you of the details in connection with each other. check it.

    $72 (Avg Bid)
    $72 平均入札額
    14 入札

    Hello, I need one simple image converted to html/css/javascript. Please don't bid if you can't start immediatly.

    $17 / hr (Avg Bid)
    $17 / hr 平均入札額
    19 入札

    I have 10 custom fields for my post, 9 are text based select fields and 1 which is price is numeric. Now I need to make filter from backend which will create new page based on my filtered post. I need WP Query which filter posts as per my selection, if “Any” from drop down selection is selected show all, and for numeric field which is price if price is added show less than entered price.

    $29 (Avg Bid)
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    3 入札

    Hello, I need one simple image converted to html/css/javascript. Please don't bid if you can't start immediatly.

    $435 (Avg Bid)
    $435 平均入札額
    35 入札

    Most of the site need to be front end. Some parts of Java Script. Should look good.

    $155 (Avg Bid)
    $155 平均入札額
    39 入札
    fix dropdown filter 6 日 left

    fix dropdown filter not working bootstrap work via anydesk

    $5 / hr (Avg Bid)
    $5 / hr 平均入札額
    23 入札

    Hello freelancers I need seven freelancers who work with me in the future and you must have great profile on freelancer. I will provide all the details about my project. Please do not waste your time and bid if you don't have a good profile. My work is related to HTML, CSS, PHP, JAVASCRIPT, WORDPRESS ETC. So I am waiting. Thanks

    $278 (Avg Bid)
    $278 平均入札額
    9 入札

    We are in the process of integrating Amazon Seller Central with our own application to manage our customers. However, we are struggling with Amazon Login and Seller Central authorizations. We need a development. which contains a PLAIN javascript Oauth flow to connect and authorize and in turn posts to Backend so that It can be identified by our Backend (similar to any FB, Google Oauth implementation). You should have your own developer account which we can authorize and we can create a new sample app in seller central so that you can test. At the end, you are expected to deliver a working JS, implementation documentation (so that any appID & developerID can use it) and tests which prove you have been able to receive a valid and successful response from any API on seller central (ie I...

    $790 (Avg Bid)
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    Need to create an interactive animation game for web page. This was an swf and the swf file is with me. It is a blood donor match game for public awareness. We have attached a mp4 which shows how the game is played. Have a look at the video and then quote. Though it shows the long drawn game, it just needs to set the matching content logic to make the game work Can make it single level or more

    $428 (Avg Bid)
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    mobile issues 22 時間 left

    I created a site on blogger. It was working fine on desktop and mobile. However, suddenly, I don't see my site on mobile. How do I fix it. It may be a redirect error or an indexing issue, I am not sure as this is above my ken.

    $113 (Avg Bid)
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    43 入札
    Build IELTS simulation website 6 日 left

    Dashboards , Ielts mock exams

    $281 (Avg Bid)
    $281 平均入札額
    11 入札
    Need a php software developer 6 日 left

    I want to modify a php software. So if you are experienced with php cloud software development. Let me know.

    $147 (Avg Bid)
    $147 平均入札額
    19 入札

    I am looking for someone to help me build a chrome extension. The extension will have 3 tabs, Notifications, My network and My messages. When you click on the extension icon, it will show the 3 tabs and let;s you view your notifications without going to Linkedin. It will also mark them as read. Finally, in the messages section, I should be able to reply to messages.

    $229 (Avg Bid)
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    5 入札

    Hi, We wish to get annotations developed for on screen marking (OSM) app. We have done the entire app except annotations. We only need Front End in React. OSM and Annotations Ref -

    $644 (Avg Bid)
    $644 平均入札額
    16 入札

    I need a Java full Stack developer who is good at the following to develop a small web and mobile application. Frontend :JAVA,SpringBoot,Hibernate,Micro services/API's Frontend :Angular10/12,Javascript,HTML CSS for Mobile & Web UI. Database :Postgres Please let me know If you are interested ,we can talk further. Regards, philo

    $649 (Avg Bid)
    $649 平均入札額
    12 入札

    I need a person who is good at the following to develop a small web and mobile application. Frontend :JAVA,SpringBoot,Hibernate,Micro services/API's Frontend :Angular10/12,Javascript,HTML CSS for Mobile & Web UI. Database :Postgres Please let me know If you are interested ,we can talk further. Regards, Philo

    $691 (Avg Bid)
    $691 平均入札額
    15 入札
    Build me a unrar project -- 2 6 日 left

    Hello. I am looking for a rar unarchive node.js solution. If you have developed a similar on app or any other solution related to rar unarchive javascript kindly submit. Budget/milestone: $10/1 day Thanks.

    $10 (Avg Bid)
    $10 平均入札額
    3 入札

    We are looking for web application developers for our internal project that will collect work orders

    $263 (Avg Bid)
    $263 平均入札額
    13 入札
    Engineers 6 日 left

    Looking for web application developers who knows JSP / Servelets / Advanced Java

    $391 (Avg Bid)
    $391 平均入札額
    5 入札

    Hello friends, I have a problem with the display of banner ads. As you'll be able to see, in the articles of my site, some banners are not displayed correctly as you can see a black space, the ones I put under the menu instead do not appear at all. I am using the Ad Inserter plugin and I think I have placed them correctly but the problem still remains. I also tried installing the Advanced Ads plugin but in the bulletin board it also gives me this error: "Missing PHP extensions may be causing problems. Ask your hosting provider to enable them: mbstring" On the site also, if I click at the top on Ad Inserter to see the placement of the blocks, I get a "JAVASCRIPT ERROR". I would kindly like to have the work done with ANYDESK because I would like to see what you ...

    $26 (Avg Bid)
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    12 入札

    Looking for a Skilled developer who can design a tool to design Flipable PDF I want to make these types of Fliapable PDF https://static.fliphtml5.com/web/demo/starbucks/STARBUCKS.html#p=1 Need a profesional Tool to design in such a way that a NON- CODER can make this flipable PDF through that tool

    $704 (Avg Bid)
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    13 入札

    Hello, I want to give users access to WIX online course app after they successfully have made the payment.

    $83 (Avg Bid)
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    3 入札

    I have some hard drives based on . I would like to make routines to generate backups of them using API: This is the idea: 1. User selects drives from a list of drives 2. User determines interval for backup (minute, hour,day, month) 3. Store of backups: User determines how many backups want to store, for example, latest 30 A new backup then will delete the older one.

    $25 (Avg Bid)
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    8 入札

    for an existing VS2022 C++ window project needed small compile task: ======================================================== an experienced C++ coder with libWebRTC to update existing code running with older libWebRTC (version M97) to work with the latest one (M109/10) you must show proven experience integrating libWebRTC (not WebRTC used in JS) latest library version (>100) into the existing C++ VS2022 project. ---- IF YOU HAVE NO EXPERIENCE with LibWebRTC, PLEASE Don't Bid,

    $142 (Avg Bid)
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    3 入札

    Hello, I need to Create a Spot Channel to the Selected Image Object area through Java or Python. Please quote only who having solution handy. If I give you input image need a code which can converts the image including spot channel in it.

    $245 (Avg Bid)
    $245 平均入札額
    4 入札

    We need a bootstrap5 extension for Yii1. We are going to upgrade bootstrap2 to 5. As a software developer team we are going to assist your development and guide. Our team has knowledge and experience to the this work. We need to have more resource.

    $495 (Avg Bid)
    $495 平均入札額
    20 入札
    Ad exchange scripts 6 日 left

    I need to develop RTB header bidding Ads script. Run multiple ads network to provide our publishers high revenue.

    $531 (Avg Bid)
    $531 平均入札額
    30 入札

    Need help with angular internationalisation errors.

    $58 (Avg Bid)
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    13 入札
    Make a page and add some features. 6 日 left

    I need to accomplish the following types of requirements. 1. Mimic these two pages. On the home page of my website, add a hover button like this at the bottom. All pages of the site will have a small pop-up window with information about the order, like the screenshot below. The information in this small window is something that I can customize the content of. 2. Make a checkout page of this type: This page is to perform several functions. The top of the page has elements like images, text, etc. I have uploaded two products on my website, I want these two products to be directly selected by the customer and then the order will be paid directly on this page and support paypal and credit card payment function. Add a required box for order notes, because I need the customer to fill...

    $31 (Avg Bid)
    $31 平均入札額
    15 入札

    I have a custom Worpdress theme and there is a small style bug on the homepage, i cant get the posts to show in poster layout, the theme is completely designed just needs settings changed to make it work.

    $26 (Avg Bid)
    $26 平均入札額
    7 入札
    Core PHP Small Task 6 日 left

    I have a PHP Project and I want to load data based on certain conditions (like $_POST or $_GET) and also i want clean code.

    $41 (Avg Bid)
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    32 入札

    Pre-seed startup with secured funding is looking for a backend developer expert in AWS Amplify and frontend developer expert in React to build the first MVP.

    $15605 (Avg Bid)
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    20 入札

    We are looking for a front-end developer and graphic designer in one for a long-term partnership. The scope of work includes the creation of LP designs + new landing pages for sweepstakes and VODs (Affiliate Marketing verticals). We often create the same landing pages but in different languages for other countries. This means one of your tasks will be also placing orders for a language translation (on our partner's platform). The volume of work is not big, however, what we require is the response time. We would like to have new landing pages (when a pre-established design) ready within a day. Preferable time zone: within Europe (GMT+1, GMT+2). The onboarding training will be provided. **Required: HTML / CSS / JavaScript

    $619 (Avg Bid)
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    44 入札

    Hello i have installed quickdate script but im looking for someone who will customize that for me i mean: -add polish language -change landing page -add two more gender: couple and trans -add new one info about sexuality: Hetero, Gej, Les, Bi -and some more information in profile (i will write everything, when we will make a deal) -create term, rules, privacy etc -add notice +18 Max 2 days is time frame

    $51 (Avg Bid)
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    17 入札

    Hello i am looking for someone who can create a tool like wondershare filmora, animoto or animaker tool. any language in back-end will work. But i want PHP in front because i want to create versions and want it very flexible.

    $56 (Avg Bid)
    $56 平均入札額
    10 入札

    How are you? We need a dev who has rich experience with Plotly Dash

    $187 (Avg Bid)
    $187 平均入札額
    15 入札

    I am attaching my HTML code u need to use pdfrector () PHP or Javascript and create report like this. You can make trail and make it SamplePDF:

    $3 / hr (Avg Bid)
    $3 / hr 平均入札額
    4 入札
    Programmer 6 日 left

    Full time freelancer Knows a thing or two about PHP, APIs, HTML, CSS, Javascript and Regular Expressions

    $509 (Avg Bid)
    $509 平均入札額
    42 入札
    Woocomerce Error code in loop 6 日 left

    We have issue on small code error going in loop. So it's something vad code on that row of the code and it's stop sync orders. Problem be solved and always come back Your task it's fix this error row code so it's not going in loop

    $31 (Avg Bid)
    $31 平均入札額
    36 入札
    Programmer 6 日 left

    Full time freelancer Knows a thing or two about PHP, APIs, HTML, CSS, Javascript and Regular Expressions

    $622 (Avg Bid)
    $622 平均入札額
    48 入札

    Hi, I want an anime website. Automatic fetch content from the internet

    $487 (Avg Bid)
    $487 平均入札額
    39 入札

    I will commission to write/rework a plugin for WordPress Finally, the plugin is to be made nicely graphically and the following data to be entered by the user are to be there: Gender age Weight Height Activity Level Goal - ---> Calories to consume Of course, the plug in Polish and entering data in measures used in Poland. and that it only gives an answer about the suggested number of calories to be consumed + a link to 3 websites depending on what the caloric demand for consumption will come out. I will want to include this on my website as either HTML or SHORTCODE

    $47 (Avg Bid)
    $47 平均入札額
    22 入札

    Hi, I want an anime website. Automatic fetch content from the internet.

    $498 (Avg Bid)
    $498 平均入札額
    25 入札

    We are looking for a tech developer to helps us with Brilliant directories. We are building an MVP to have the equivalent to G2. We will have vendors that have different products, and each of them must have reviews and particular fields in their profile. The reviews will be attributed to the vendor, not per individual product. This is the scope of the project: We have a list of 50 suppliers to upload as an account. The supplier should be able to claim it later on (claimable listing). For each supplier we want to upload 5 reviews for each as average. The reviews are related with the suppliers with 4 attributes to review not the standard Send Lead by email to the supplier and tracking (we have pay per lead) Specific changes on the UI such as round borders on buttons. API configuration to G...

    $199 (Avg Bid)
    $199 平均入札額
    9 入札
    Drupal REACT developer 6 日 left

    Hi, need a react developer to help us on a headless drupal project.

    $686 (Avg Bid)
    $686 平均入札額
    23 入札

    Hey everyone! I have a quick task for you - it won't take more than just a few hours. I have a website with automatic ads. When you click these ads, it should look exactly the same for all of them but right now some of these ads are opening without animation. I need this to be fixed. DO NOT SEND PROPOSALS UNLESS YOU HAVE ANALYSED THE PROBLEM

    $416 (Avg Bid)
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    51 入札