
Closed
Posted
Paid on delivery
I'm looking for an experienced JavaScript reverse engineer. The JavaScript I have is already decrypted. The goal is to modify its behavior so it can run standalone, decoupled from mobile device functions. Ideal skills and experience: - Proficiency in JavaScript, especially in reverse engineering - Experience with mobile device interaction and decoupling - Strong problem-solving skills Please provide relevant experience in your bids.
Project ID: 40487227
15 proposals
Remote project
Active 15 hours ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
15 freelancers are bidding on average ₹977 INR for this job

Hello, I understand that you’re seeking to modify decrypted JavaScript to function independently, without reliance on mobile device features. This is a critical task that requires in-depth knowledge of reverse engineering and a solid grasp of how mobile interactions typically work. With over 12 years of experience in full-stack development and mobile automation, I have successfully navigated similar challenges using a variety of technologies such as Node.js for backend processes and React.js for frontend improvements. My expertise extends to tools like Appium and Selenium, which are essential in ensuring the modified code performs seamlessly across different environments. I thrive on problem-solving and enjoy tackling complex issues head-on. By decoupling the JavaScript from mobile functions, I can help you achieve a robust solution tailored to your needs. To better understand your requirements, could you share any specific functionalities that must remain intact after modification? Looking forward to your response!
₹1,500 INR in 7 days
4.6
4.6

Here’s the thing: once JavaScript has been decrypted, the challenge usually stops being “reverse engineering” and becomes “dependency surgery”. The code may look readable, but its behavior is still often glued to mobile bridges, native callbacks, or environment-specific assumptions. I’ve handled JavaScript analysis and behavior modification work where the goal was to make code executable outside its original runtime without destroying the intended flow. That usually means tracing invocation paths, identifying mobile-only bindings, and replacing them with predictable standalone logic or mocks that preserve execution. The reason this kind of task goes wrong is simple: people remove device calls, but forget that other parts of the script still depend on the returned state, timing, or side effects. Then the code runs... but incorrectly. I approach it by preserving behavior first, then simplifying safely. Since you already have the decrypted JS, I can jump directly into: understanding the execution structure, isolating the mobile-coupled sections, and modifying those parts so the script can run independently and reliably. Have you already identified the functions tied to the mobile device layer, or do you want a full dependency trace from scratch?
₹1,000.61 INR in 7 days
4.4
4.4

Hello There, I am JavaScript expert and would change its current logic as per your needs. Look forward.. Thank You Sincerely
₹600 INR in 7 days
4.0
4.0

Greetings I can surely help you for JavaScript Behavior Modification I am in the IT industry since more than a decade and serve so many clients in building and rebuilding websites, software, and applications I have strong hands-on different cms like webflow, Wordpress, shopify, squarespace, wix and on different programming languages like PHP, Laravel, React, Node.js, HTML, CSS, And I did the migration from HTML to click funnels. I have made so many websites (E-commerce, WordPress, Classified admin, WooCommerce, etc.), bots, softwares, and Mobile applications (Android, IOS, and Huawei Play store) in my entire career. I have strong hands on both the front end and back end. Currently, I am part of the team who are dealing with miscellaneous tasks in dubizzle and Mzad Qatar including design and layouts and they both have more than 1 million users. I believe that you are looking for a web designer and for sure you will get your end desire result with plagiarism-free work and with better quality as I am assuring you this. Package deals can also be done for long-term collaboration as per the client's requirement. Kindly do come on chat so that we can discuss project details further more.
₹600 INR in 2 days
3.2
3.2

Hi, this is an interesting project and aligns well with my JavaScript debugging and code analysis experience. Since the code is already decrypted, the focus will be on understanding its dependencies, identifying mobile-specific integrations, and refactoring or mocking those components so it can run independently. I have experience working with complex JavaScript codebases, API integrations, and application behavior analysis, and I'm comfortable digging into unfamiliar code to determine how it functions and what needs to be modified. I’m reliable, easy to communicate with, and committed to delivering work that meets your expectations. Let's connect over chat or a quick call to discuss the details. I can start immediately. Best Regards, Shubham
₹1,050 INR in 7 days
1.6
1.6

Hi, there! I recently undertook a project where I transformed a complex web application reliant on mobile APIs into a fully functional desktop application, enhancing its accessibility and usability. In this endeavor, I implemented features such as local storage for user data, offline capabilities, and a responsive UI. The primary challenge was identifying and replacing mobile-specific functions without compromising the user experience, which I overcame by creating mock functions that simulated mobile interactions. This ensured that the application maintained its intended functionality across different platforms. I offer to conduct a comprehensive analysis of the existing codebase to identify dependencies on mobile features and systematically decouple them. My unique approach involves utilizing advanced techniques in code refactoring and testing methodologies, similar to a past project where I successfully migrated a mobile-first application to a web-based platform by rewriting critical functions and integrating robust testing frameworks. If I use my previous experience, your project will likely be completed successfully. Hope to discuss this in detail. Through detailed discussion, I think I can find the better solution to finish your project successfully. Thank you!
₹1,050 INR in 7 days
0.0
0.0

This Project caught my eye, so I had to reach out. I understand the need for modifying JavaScript to run standalone, decoupled from mobile functions. With expertise in JavaScript reverse engineering and decoupling from mobile devices, I can help achieve this seamlessly. New to Freelancer, yet backed by over 10+ years of crafting sleek web, game, and brand solutions. Let’s create something exceptional together. I would love to chat more about your project! Regards, Marco Agrela
₹750 INR in 7 days
0.0
0.0

Hi there, I read your project details regarding the decoupling of decrypted JavaScript from mobile device functions, and I am confident I can deliver a fully standalone version for you. Why I am the right fit: I specialize in JavaScript Reverse Engineering and have extensive experience isolating core logic from mobile dependencies (like Cordova, React Native bridges, or native API calls). My Execution Plan: Dynamic Analysis: I will use Frida to hook into the script's runtime, intercepting calls to mobile-specific APIs (e.g., device ID, sensors) to understand exactly where the dependencies lie. Environment Emulation: I will create "stubs" or mock functions in a Node.js environment to replace these mobile calls, ensuring the script runs without crashing. Refactoring: Once the logic is verified in a standalone environment, I will modify the source code to permanently remove or bypass these checks, delivering a clean, decoupled script. Tools I use: Frida, JSDetox, Node.js, and Chrome DevTools. I am available to start immediately and can sign an NDA if required to ensure your code's confidentiality. Best regards, [abdalla emad]
₹1,050 INR in 7 days
0.0
0.0

ঔৣ☬✞ Hello ✞☬ঔৣ As an experienced Senior Full Stack AI Engineer and Software Architect with a proficiency in JavaScript, I am confident in my abilities to successfully undertake your project. My expertise in reverse engineering coupled with my vast experience in mobile device interaction and decoupling make me an ideal match for this job. Over the years, I've designed and built scalable SaaS platforms and high-performance mobile applications that required JavaScript reverse engineering to ensure their functionality remained intact away from mobile device functions. I've also worked on various REST API designs and third-party integrations, skills that could come in handy during this task. I believe my solid grasp of Javascript alongside my demonstrated problem-solving capabilities would enable me to understand, modify, and run the decrypted script independently fulfilling your objective to ensure it operates standalone. You can look forward to receiving a reliable, efficient and future-proofed solution when selecting me for your project. Thanks, Bruno
₹600 INR in 5 days
0.0
0.0

Hi, I can help modify the JavaScript behavior so it can run standalone and no longer depends on mobile device functions. I have experience working with JavaScript, frontend logic, jQuery, PHP-based pages, and debugging existing scripts. I can review the decrypted JavaScript, identify where it depends on mobile/device-specific functions, and replace or decouple those parts with browser-safe logic. What I can do for you: * Analyze the current JavaScript flow * Find mobile/device function dependencies * Modify the behavior to run independently * Keep the existing main functionality working * Provide clean changes with a short explanation I can start once you share the JavaScript file or snippet. I will make sure the changes are clear, tested, and easy to apply.
₹700 INR in 7 days
0.0
0.0

Hello, I am a Full-Stack Developer with nearly 6 years of experience working with JavaScript, frontend applications, APIs, and complex codebases. I have experience analyzing and debugging JavaScript applications, identifying dependencies, and modifying code behavior to meet specific requirements. I can review your decrypted JavaScript, understand its interaction with mobile device functions, and assess the feasibility of decoupling it for standalone execution. Before proceeding, I would like to review the code and understand the expected standalone behavior so I can provide an accurate solution and timeline. I look forward to discussing the project details. Best regards, Shruti Singh
₹1,050 INR in 7 days
0.0
0.0

I am interested in your project and have extensive experience in Java, JavaScript, HTML5, and jQuery development, including analyzing and modifying complex web applications. I can investigate the existing JavaScript codebase, identify dependencies on mobile device functions, and refactor the application to operate independently as a standalone solution. My approach includes detailed code analysis, dependency mapping, decoupling device-specific APIs, and implementing suitable alternatives while preserving existing functionality. With 17+ years of software development experience, I have worked on enterprise applications, browser-based systems, API integrations, workflow platforms, and legacy code modernization projects. I am comfortable reverse engineering undocumented code, troubleshooting complex issues, and delivering maintainable solutions. Deliverables: ✔ Analysis of current mobile dependencies ✔ Refactored standalone implementation ✔ Testing and validation ✔ Source code with documentation ✔ Deployment guidance I would be happy to review the existing application and discuss the required standalone behavior before starting.
₹1,050 INR in 5 days
0.0
0.0

As a dedicated Front-End Web Developer, I find myself passionate about transforming ideas into tangible creations. With my expertise in HTML, CSS, JavaScript, and React, I am well-versed in the core skills needed for a Javascript reverse engineering project like this one. Not only do I have a knack for clean code and performance optimization, but I also possess strong problem-solving capabilities which are essential for your task. My experience in responsive web design and UI implementation will particularly come in handy as we strive to make your JavaScript decoupled from mobile device functions. In addition to my technical skills, my focus on user experience echoes the goal of your project - to make it stand-alone yet effective. Furthermore, I'd like to emphasize my dedication to improving and expanding my skill set-essential traits for any reverse engineer. My desire to learn new technologies would complement the existing decrypted Javascript as well as aid me in offering you the best outcome possible. Ultimately, choosing me means choosing reliability, professionalism, and someone who is genuinely excited about bringing your vision to life!
₹1,050 INR in 7 days
0.0
0.0

I understand you need a JavaScript reverse engineer to decouple it from mobile device functions. I have already worked with JavaScript-heavy projects and understand how to modify and restructure code behavior in the past. DM me directly and I will walk you through the method I am thinking to use for your project. Waiting for your message. Once you message, consider your work done. Thanks in Advance, Dinesh Kharah
₹1,050 INR in 7 days
0.0
0.0

Bengaluru, India
Payment method verified
Member since Jun 2, 2026
₹600-1500 INR
min ₹2500 INR / hour
$15-25 USD / hour
₹750-1250 INR / hour
€1500-3000 EUR
£10-15 GBP / hour
₹750-1250 INR / hour
$30-250 USD
$45-50 USD
₹400-750 INR / hour
$8-15 USD / hour
$250-750 USD
₹12500-37500 INR
₹75000-150000 INR
$25-50 USD / hour
₹600-1500 INR
₹750-1250 INR / hour
$250-750 USD
₹12500-37500 INR
₹600-1500 INR