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!

Da 820,075 valutazioni, i clienti danno una valutazione ai nostri Javascript Developers di 4.85 stelle su 5
Assumi Javascript Developers


Le mie ultime ricerche
Filtra per:
    Stato del lavoro
    806 lavori trovati, prezzi in EUR

    Ho bisogno di una estensione chrome che sia instalato su un browser (il mio principale) e monitori in tempo reale tutti i miei movimenti ( dove faccio i click ,tasti della tastiera ) e che replichi in tempo reale su un altro browser chrome ( che ho sullo stesso pc instalato una versione portable) la stessa operazione . Ho bisogno di controlare in tempo reale con minor delay possibile da un browser chrome , altri 2-3-4-5 browser chrome (portable) che ho sullo stesso pc in modo da operare in contemporaneea con piu account.

    €176 (Avg Bid)
    €176 Offerta media
    6 offerte

    Sto cercando un programmatore python per risparmiare tempo su alcune task che devo effettuare sui social. (removed by Freelancer.com admin) Durata del progetto: 1 mese Parliamo di ulteriori dettagli e proponimi la tua offerta

    €38 / hr (Avg Bid)
    €38 / hr Offerta media
    14 offerte

    Stiamo cercando una risorsa da aggiungere al team di sviluppo. Il candidato dovrà sostenere un test per valutare le sue capacità e il livello di conoscenza dei linguaggi di programmazione.

    €1251 (Avg Bid)
    €1251 Offerta media
    65 offerte
    Google Ads Script 1 giorno left

    Lo script deve essere in gradon di esportare in un foglio google sheet gli annunci adattabili presenti nell'account, suddividendoli per campagna a cui appartengono. L'url del foglio deve essere inserito dall'utente. Per ogni annuncio devono essere esportati, in colonne diverse, i titoli, le descrizioni, ed estensioni/asset attivi (callout,sitelink,snippet etc..). Per ogni asset, per ogni titolo, per ogni descrizione, devono essere esportate le metriche principali (clic, impression, ctr, conversioni, costo/conv, conversion rate, impression share).

    €49 (Avg Bid)
    €49 Offerta media
    5 offerte
    Sviluppatore Estensione Chrome 1 giorno left

    Ho bisogno di sviluppare un'estensione di Chrome che in una pagina qualsiasi di Google, sia in grado di estrarre gli annunci presenti nella pagina e copiarli in un google sheet, suddividendo in colonne diverse: titoli, descrizioni, url, path 1 e 2 (se ci sono), più le varie estensioni (callout, snippet, sitelink). Questo per gli annunci testuali. Per gli annunci di shopping deve esportare: titolo, prezzo, link immagine, descrizione. Inoltre deve essere in grado di fare la stessa cosa, ovvero estrarre gli annunci di testo, in una pagina qualsiasi della libreria annunci di google. Questa è un'estensione simile.

    €146 (Avg Bid)
    €146 Offerta media
    5 offerte

    Vorrei realizzare un app in italiano molto basica proprio per iniziare per noi migliorarla con il tempo . dove gli utenti che si registrano possono inserire i propri prodotti per venderli o inserire annunci di ricerca

    €1173 (Avg Bid)
    €1173 Offerta media
    51 offerte

    HI, I'm looking to build a website using either angular/react as the front-end and Python/C# for the backend. The initial screen should be a login - Select type of form> fill out a form > generate a pdf document. Later there will be views for visualizations using either charts or a similar library. It should have the option to retrieve the pdfs later and have the opportunity to search for them. Db should be mysql. The web design should be able to fit an iPad resolution if needed. The code needs to be reliable.

    €16 / hr (Avg Bid)
    €16 / hr Offerta media
    1 offerte
    WebFlow Webpage 6 giorni left

    I need help with my webflow webpage, speciall design and also technical like API Calls.

    €160 (Avg Bid)
    €160 Offerta media
    12 offerte

    Hi, i am looking for a Developer experienced with JS / Jquery and Ajax, i will give you a small condition which you need to convert into a code, if you succeed in it, i will then award you the project, Write "Vanilla" on top of your bid so that i know you have read this.

    €5 / hr (Avg Bid)
    €5 / hr Offerta media
    2 offerte

    We wish to accept credit cards through Stripe via Stripe's Prebuilt Checkout page as described here: . This link is the existing product and price list that we wish reflected in the checkout: Checkout must allow "Promotion Code" or "Discount Code" as shown in Stripe examples. There must also be all the pages described at the Stripe link above such as success, cancel, order preview, and checkout. Checkout should be tested using Stripe's test credit cards. When responding, please include an example of and link to a similar integration you have performed previously.

    €387 (Avg Bid)
    €387 Offerta media
    10 offerte
    Looking for development -- 3 6 giorni left

    make WebRTC video call service, php, nodeJS or another platform. 1:1 and group video call Call time limitation Record all calls, save as video with sound of all contributors Integrate this system with site on php

    €574 (Avg Bid)
    €574 Offerta media
    29 offerte
    Cordova project 6 giorni left

    Hi, I have an existing Cordova project, which needs a new API integration. I have an API postman collection for the same. I can show a complete demo of the app for you to understand.

    €155 (Avg Bid)
    €155 Offerta media
    6 offerte

    I am looking for Javascript developers to write a chrome extension for Automatically transcribing Teams, Google Meet and Zoom calls that works in real-time.

    €79 (Avg Bid)
    €79 Offerta media
    3 offerte

    I need to be able to take a photo or upload a photo to dropbox, retrieve the url in the form of a QR code to print on a label

    €182 (Avg Bid)
    €182 Offerta media
    15 offerte

    I am trying to build a progress bar on my home page () using async function. async function awaits for fetch from flask function @progress, and based on the fetched data, it updates the progress bar. In flask, I have multithreaded API calls, which are initiated within @home function after the submit button is pressed from the page. Submit button is part of a wtf form. After succesful completion of threads, there is redirect to @output where the result is displayed in output.html. This works perfectly in chrome browser in PC environment. However, in azure hosted environment, the async javascript function stops while the threadpoolexecutor is running in the backend. I cannot see the async function running in the log stream. The progress bar also stops updating since async has stopped. J...

    €163 (Avg Bid)
    €163 Offerta media
    9 offerte

    Aplikasi pembacaan data kwh meter menggunakan protokol DLMS. Untuk serverside bisa menggunakan PHP, javascript. Clientside PHP, javascript. Mobile app menggunakan flutter. Database MySql

    €437 (Avg Bid)
    €437 Offerta media
    4 offerte
    Small script 6 giorni left

    Need small script to get vehicle details from one portal. We will provide vehicle number and registration number. Using those two need to fetch 4 kind of documents and details written on excel and on different website.

    €12 (Avg Bid)
    €12 Offerta media
    8 offerte
    backend.developer.next.js 6 giorni left

    I need a (BACKEND) developer, who can implement the below features in my app:

    €39 (Avg Bid)
    €39 Offerta media
    3 offerte

    i need a php script to send sms with plivo it needs to have 3 fields Sender number. Meceived numbers list Message Sender number needs to rotate sender number for each message, ability to put multiple senders separated by coma all documentation here payment is 45$ since all codes are in documentation just need to be put together job have to be done in next hour

    €77 (Avg Bid)
    €77 Offerta media
    16 offerte

    Looking for xml pro who can fix the issue in shortly Thank You

    €59 (Avg Bid)
    €59 Offerta media
    6 offerte

    Job Description: BLOCKCHAIN BITCOIN FLASHING SOFTWARE I am looking for a developer who can develop the BITCOIN, Flashing Software in main network (windows based), the requirements are mentioned below, 1) The software can perform flash of the BTC , as well as the flashed BTC should be transferable from one wallet to 5 wallets and with confirmation is appreciated. since it is flash btc it must be visible in BTC wallet address for 60 days. There will be no transaction fee while sending from "flash s/w" to "btc wallet" as it will be no confirmations. eg:- If we send from bitcoin flashing s/w to 1 wallet, it must support sending btc to 5 wallets also no problem must arise. It will be displayed till 60 days note:- Screen will have a picklist(btc) to select , "addr...

    €578 (Avg Bid)
    €578 Offerta media
    6 offerte

    Hello, We are looking for a professional full stack developer that will be able to work with my company CTO regarding our trading bot development and other activities we are currently developing . The developer needs to: 1. 5 years at least of full stack development professional experience 2. Have experience in building trading bots and collaborate with other developers in chat 3. Only serious and professional developers i will accept for this project 4. Developer will remain as part of the company if he/she will successfully adjust to our needs and style 5. Developers highly expensive arent accepted as we are a company we work on multiple projects 6. Full Stack Developer with extra skills will consider as an extra add while selecting the relevant person 7. The developer wil...

    €7866 (Avg Bid)
    €7866 Offerta media
    18 offerte
    Trophy icon Outline VPN data search 2 giorni left

    I need a code to look up outline access key and shows the data table in a html file: KeyName KeyCreationDate KeyUsage KeyDataLimit KeyName: the name after # (in the following example TEST) ss://Y2hhY2hhMjAtaWV0Zi1wb2x5MTMwNTp2T2p0SGdvdfdfUWpCM0NoZlQ1UUQzTmNH@:18687#TEST KeyUsage: 57MB or 1.4GB KeyDataLimit: 20GB The search function should look for part of the key "ss://Y2hhY2hhMjAtaWV0Zi1wb2x5MTMwNTp2T2p0SGdvdfdfUWpCM0NoZlQ1UUQzTmNH@" (key before #)

    €10 (Avg Bid)
    1 proposte

    We are launching a new web development firm in Australia and are looking for smaller companies to have deal with our company. We will outsource the work and needs the jobs to be completed in time. We are looking for a team with websites build with HTML, CSS, XML, JavaScript, Python, PHP. As we are in the launch phase we will need to discuss the possibilities of a tie-up.

    €377 (Avg Bid)
    €377 Offerta media
    36 offerte

    I have a background video in Squarespace. I want it to play ONCE, then stop looping. Simple for anyone skilled on this platform. You must be able to do this now. $10 max.

    €9 (Avg Bid)
    €9 Offerta media
    5 offerte
    c# programmer 6 giorni left

    Need support on c# and javascript program

    €5 / hr (Avg Bid)
    €5 / hr Offerta media
    17 offerte

    i need source codes to login g mail in latest firefox version ( atm V109), using these 3 credentials in a given txt file : username, password, recovery email then return result OK/FAIL in to the same file same line

    €100 (Avg Bid)
    €100 Offerta media
    10 offerte
    Date calculator PHP (no database) 6 giorni left

    XONPM is a professional buyer with 5 out of 5 rating in Freelancer over 10 years, we confirm job fast, always availiable for comments on deliveriable, and release money fast after job finished. If you would like to work for us, please read the job description clear and place your accurate bid. *** Job description *** :: 1 php page for date calculator :: Path: /BNOCalculator :: No database is needed, no need to save record :: Prefer bootstrap UI interface, desktop & mobile friendly. See attached file for reference

    €26 (Avg Bid)
    €26 Offerta media
    10 offerte

    Im looking for full function booking hotel website based on ratehawk api. I want only freelancers with already made similar projects.

    €1548 (Avg Bid)
    €1548 Offerta media
    27 offerte
    2x3 gifting program 6 giorni left

    I need an automated gifting platform. Message me for details.

    €448 (Avg Bid)
    €448 Offerta media
    32 offerte

    I would like to make edit/upload app of video and image. I will share sample video in the quick chat.

    €31 / hr (Avg Bid)
    €31 / hr Offerta media
    21 offerte

    We are a small, fast growing B2B SaaS company based in Canada. We are looking for a full-stack senior developer fluent in English based in Portugal to join our team with the possibility to build our second development team in Portugal. You would join our team permanently on a full-time basis and help us build the team as our company scales. The role is primarily hands-on architecture and software development and progressively it could integrate project management, team management and external relationships management (e.g. managing projects where we integrate our software with a 3rd party application, client interactions for API usage etc). You should have experience working on and leading complex software development projects and managing remote teams. You should also have an entre...

    €32 / hr (Avg Bid)
    €32 / hr Offerta media
    27 offerte

    Quero uma página de Vendas de um Curso Online de Xadrez dentro da plataforma RD Station

    €121 (Avg Bid)
    €121 Offerta media
    14 offerte

    I am currently using this - I want to see if there is anyway you can create an app that I can use that will look the same that I can import all my star ratings into.

    €82 (Avg Bid)
    €82 Offerta media
    8 offerte

    Display car's longitude and latitude from the database on the map

    €143 (Avg Bid)
    €143 Offerta media
    45 offerte

    About the company: We are a data-driven digital-first media company that specializes in creating short-form web series for social video platforms. Our mission is to create fun factual content that educates the world about science and the humanities. We are ranked among the top 3 factual media properties on social media in the world. We are based in Toronto and Macedonia. Read more about us at What we are looking for: We are looking for 1-2 full-stack developers to manage our hosted web application. We are looking for a full-stack developer who can continue to maintain the platform as well as add new features. We are scaling back from a larger team who was doing all of the development. We are in a period of scaling down the new features but want to continue to add things as well as m...

    €20 / hr (Avg Bid)
    €20 / hr Offerta media
    16 offerte
    PHP development 6 giorni left

    We are looking for an experienced PHP developer that can take over an existing project (details below). If we find the right developer the hourly rate can be increased in the future and a full-time position will be available. Skills required: PHP, MySQL, HTML5, CSS3, JavaScript, jQuery, BootStrap, REST API, XML/CSV data feeds, Git Framework: The project is based on a customized version (old release) of this CMS script - First tasks: 1) Upgrade script from PHP 5.6 to PHP 7/8. 2) Upgrade MySQL database (with existing data) to a later MySQL release. 3) The script includes a built-in product listing data import tool - that needs modifying so we can automatically import product data (via CSV/XML) from data providers. 4) Setup the project in GitLab (self-hosted version).

    €11 / hr (Avg Bid)
    €11 / hr Offerta media
    54 offerte

    I need a professional person who has erp system, desktop and web application

    €2206 (Avg Bid)
    €2206 Offerta media
    31 offerte
    Looking for development -- 2 6 giorni left

    make WebRTC video call service, php, nodeJS or another platform. 1:1 and group video call Call time limitation Record all calls, save as video with sound of all contributors Integrate this system with site on php

    €157 (Avg Bid)
    €157 Offerta media
    22 offerte

    A WordPress plugin can be created to customize content for different types of personalities using the Myers-Briggs Type Indicator (MBTI). The plugin will have a cross-site tracker to determine the visitor's MBTI personality and store it in a Neo4j database. A controller will then decide the visitor's personality and show personalized content to the visitor based on their personality. 1st Milestone Create Elementor Add-on & classic editor to generate content using OpenAI GPT-3 API. 2nd Milestone Make a pop-up consent with 3 different mode. Guest, Anonymous & Logged-in. 3rd Milestone Integrate the cross-tracker to get their personality type based on tag/behavior and stored in the Neo4j database. 4th Milestone Next, a controller will be created to retrieve the visitor�...

    €413 (Avg Bid)
    €413 Offerta media
    26 offerte
    Nodejs Script Debugging -- 2 6 giorni left

    We have a scripts that import products to our Shopify Webshop . We need someone to debug and fix the scripts. and then create a product datafeed url .Our service Team will chat with you and give you more information

    €59 (Avg Bid)
    €59 Offerta media
    16 offerte

    ** Read the task list and contract criteria completely before bidding. Be sure to include the key word in the first line of your bid, or your bid will be ignored. ** Looking for a coder to do some customization work on the Chameleon dating site software (impact theme). We would like to have the current compatibility match graphs include the results of a compatibility survey that you will create. The site uses php, HML, js, MySQL and CSS as its stack. In summary, the project includes: Task List: 1. Create table in existing MySQL DB to hold user survey results. 2. Modify user table and admin user list page to include the ability to delete survey results for user. 3. Modify authenticated user header page to include link to Complete Survey, and Retake Survey. 4. Add script so that when Ret...

    €400 (Avg Bid)
    €400 Offerta media
    55 offerte

    i want to fine-tune GPT-3 on my own data, creating a custom version creating a text generator . Customizing makes GPT-3 reliable for a wider variety of use cases and makes running the model cheaper and faster. YouTube Descriptions YouTube Intros YouTube Titles Facebook Ads Instagram Ads Google Ad Titles Google Ad Descriptions Google Ads SEO Title and Meta Descriptions (Home Page) SEO Title and Meta Descriptions (Product Page) SEO Title and Meta Descriptions (Blog Page) SEO Title and Meta Descriptions (Services Page) Blog Ideas Blog Intro Blog Outlines Blog Title Blog Post Conclusion Paragraph Keyword Generator Product Descriptions Product Review Generator Amazon Sponsored Brands Ad Headline Amazon Product Features Amazon Product Titles Amazon Product Descriptions Creative Writing Cont...

    €3805 (Avg Bid)
    €3805 Offerta media
    17 offerte
    Book Turning Animation 6 giorni left

    I need one animation script that book turn, so that I can import it to website. Every page images will be provided.

    €19 / hr (Avg Bid)
    €19 / hr Offerta media
    52 offerte

    I am going to develop a web service of chat gpt , please reach me out for more info.

    €453 (Avg Bid)
    €453 Offerta media
    59 offerte

    We need you to work on an existing web-app implemented in React We need you to add a few new screens to our existing web app also we need you to apply correct styling to the app based on a Figma design. You need to have excellent HTML and CSS styling skills.

    €30 / hr (Avg Bid)
    €30 / hr Offerta media
    71 offerte
    Tools website 6 giorni left

    I want script file for tools website which converts all file types to other file types and image converter

    €12 (Avg Bid)
    €12 Offerta media
    2 offerte
    XRT Logistics CRM 6 giorni left

    i have a subscription to caspio low code software , i had the layout and i know exactly what i want i just need someone to login to my account and do it for me as i do not have the time to do it my self. i have pdfs you can reference from and i know exactly what i want and need. its all laid out for someone to just implement and do it. looking to get this done within a week . need ASAP

    €34 / hr (Avg Bid)
    €34 / hr Offerta media
    19 offerte

    So if a person comes to page example.com/utm_source=facebook&utm_medium=sponsored&utm_campaign=campaign X and click on a button or a link to go to another page which on a subdomain, I want that same utm_source=facebook&utm_medium=sponsored&utm_campaign=campaign to be passed on to the new URL. This has to be dynamic, because sourses, mediums and campaigns can all be different depending on the source and campaign. All sites are on wordpress.

    €22 (Avg Bid)
    €22 Offerta media
    22 offerte

    Articoli consigliati per te

    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