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I need a lightweight browser-side extension that lets me control multiple [login to view URL] accounts from one screen—very similar in spirit to the “HSLO Agario multibox” script. The core goals are twofold: • True multibox support so I can issue synchronized moves, splits, and feeds to several in-game windows at once. • Visual enhancements that make crowded playfields clearer (cleaner zooming, optional overlays, better cell outlines or color tweaks—feel free to propose improvements). Because I want this to run directly in a standard browser I prefer it delivered as a Tampermonkey userscript. Tampermonkey will handle installation on Chrome, Firefox, and Edge, so please structure the code and resource loading accordingly and bind it cleanly to the [login to view URL] domain. Key points to keep in mind – Everything must execute client-side; no standalone desktop app. – Code should be modular and easy for me to tweak or disable individual visual tweaks without touching the multibox core. – Avoid anything that could trigger bans or break the game’s normal matchmaking flow; clean WebSocket hooking and DOM manipulation only. – Please document functions inline and include a short README outlining how to install, configure hotkeys, and update the script. Hand-off deliverables 1. Tampermonkey .[login to view URL] file with multibox + visual modules. 2. README / quick-start guide (Markdown or plain text). 3. Optional: a short demo video or GIF showing the script in action so I can verify before merging. If you have previous userscript or HTML5 game-modding examples, link them when you respond so I can gauge fit quickly.
Project ID: 40410940
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45 freelancers are bidding on average $138 USD for this job

Good to see this project, I will build your Tampermonkey userscript with a modular architecture — multibox core handling synchronized moves, splits, and feeds across windows, plus a separate visual module for zoom, overlays, and cell outlines you can toggle independently. For WebSocket hooking, I will intercept the game connection cleanly using a Proxy wrapper rather than patching prototypes directly — this minimizes detection risk and keeps matchmaking intact. Questions: 1) How many simultaneous accounts do you need to control? 2) Do you have preferred hotkey bindings for split/feed/toggle? Send me a message and we can go over the details. Best regards, Kamran
$90 USD in 5 days
8.5
8.5

Hi, I’ve developed multiple browser extensions and userscripts, including a Tampermonkey script for a web-based game that allowed users to automate gameplay and manage multiple accounts. This experience has equipped me with the skills to create a robust solution that avoids common pitfalls like browser bans. For your project, I’d suggest using a dedicated Chrome extension instead of a userscript. This approach allows us to run background tasks independently of the active tab, enabling us to manage multiple accounts more effectively. We can also implement features like auto-login and session management, which are not possible with a userscript. Let’s schedule a 10-minute call to discuss your requirements in detail and ensure I’m fully aligned with your vision. I’m eager to learn more about your exciting project. Best regards, Adil
$133.38 USD in 7 days
7.6
7.6

Dear Client, I’m an experienced full-stack developer with over 10 years of experience in web and mobile application development, specializing in building scalable, responsive, and high-performance solutions for diverse business needs. I understand you are looking for a reliable developer to build or improve your project, including web or mobile applications similar to CRM, dashboards, or APIs, and I have worked on similar solutions successfully. My skills in React, Vue, Laravel, PHP, Python, REST APIs, and database design ensure efficient and high-quality delivery. Feel free to share more details or ask questions. I’m ready to refine my approach to match your exact requirements. Looking forward to working with you. Best regards, Md Ruhul Ajom
$70 USD in 4 days
5.4
5.4

Hi, there, I'm Kris from McKinney, Texas and have been working as a Sr. software engineer for over 15 years. I am an expert with 15 years of experience in PHP, JavaScript, HTML5, Web Development, Frontend Development, Software Architecture and I worked on similar projects before. I’m available to start right away and would be happy to discuss the details whenever it’s convenient for you. I would love to connect in chat to discuss details. Best regards, Kris Kramer
$30 USD in 1 day
4.8
4.8

Hello, As a versatile Senior Full Stack & DevOps Engineer with over 9 years of experience, I possess an array of skills that make me perfect for your project. From Frontend and Backend Development to Web Scraping and Data Engineering, my expertise is tailor-made for your requirements. I have successfully built high-performance frontend, robust backend systems, cloud-native infrastructure, and AI-driven capabilities - all key components needed for your multibox tampermonkey extension. My track record says it all: I design systems that deliver exceptional real-world performance. I specialize in making complex applications work seamlessly while remaining highly scalable under production workloads - a crucial attribute considering the sheer intricacy of a multibox tampermonkey extension like this. My fluency in HTML5, JavaScript, and Software Architecture further strengthens my ability to create precisely what you need. Furthermore, I am no stranger to building browser-side userscripts like your required Tampermonkey extension. My focus on clean WebSocket hooking and DOM manipulation minimizes any risks of broken match-making or account bans. Additionally, I have experience documenting functions inline - an aspect emphasized by you - so it will be easy for you to tweak or disable individual visual tweaks without compromising the multi-boxing core. Trust me to deliver a solution that not only meets your requirements but surpasses them in quality and functionality. Thanks! Chib
$155 USD in 2 days
2.7
2.7

Hi, I can take this on. Multibox scripts like this usually fall apart when input syncing feels laggy or inconsistent so getting that part smooth is where I focus first. The visual side is where we can really make gameplay clearer without overcomplicating things or hurting performance. I like building these so you can toggle features easily instead of being stuck with one rigid setup. I will build a Tampermonkey userscript that hooks into the game client and synchronizes input events across multiple sessions with clean timing and minimal overhead. Then I will add modular visual layers like zoom control overlays and cell styling that can be enabled or disabled independently without touching the core logic. I will also structure the code cleanly with inline documentation and provide a simple setup guide covering installation hotkeys and configuration. I work with JavaScript browser scripting and game level interaction systems with around eight years of experience. You will get a clean flexible script that feels responsive and easy to control without breaking normal gameplay flow.
$200 USD in 7 days
2.6
2.6

Hi there, You’re in the right place. I’ve successfully handled similar projects before and understand how to execute them efficiently from the start. To better define the scope, timeline, and pricing, I’d like to ask a few important questions. Due to Freelancer’s character limit, I’m unable to explain everything in detail here. Let’s connect on chat so I can share relevant past work, explain the results I’ve achieved, and provide a clear plan for your project. This will give you a better idea of my approach and how I can help. If you're ready to move forward, I’m available to discuss anytime. Looking forward to connecting. Best regards, Royal IT Service
$140 USD in 7 days
0.1
0.1

As a South African, I know what it is to work hard and succeed at anything you do and complete tasks at 100%. I’ve handled similar projects requiring clean design, smooth integration, and reliable performance. Your need for a lightweight, browser-side Tampermonkey userscript with true multibox support and visual enhancements aligns perfectly with my expertise. I understand the importance of modular, user-friendly code that executes client-side without disrupting normal game flow, plus clear inline documentation and a seamless installation experience. While I am new to freelancer, I have tons of experience and have done other projects off site involving userscripts and HTML5 game modding. I would love to chat more about your project! Regards, Byron Walbrugh
$40 USD in 7 days
0.0
0.0

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