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I need an experienced Chrome extension developer to create and fine-tune a small set of lightweight extensions. Each extension will be narrowly focused—simple utilities rather than full-scale applications—but they must install cleanly, run smoothly on the latest Chrome releases, and be easy to maintain. Scope of work • Build new extensions and, where relevant, refine a couple of legacy codebases I will share. • Configure Manifest V3, permissions, background/service-worker scripts, and content scripts so every build passes Chrome Web Store checks. • Optimise performance, memory footprint, and startup time. • Troubleshoot and fix any installation or permission issues that surface during testing. Deliverables • Fully functional CRX packages ready for upload. • Source code in a version-controlled repository with clear README and build instructions. • Brief hand-off notes covering key functions, APIs used, and future-proofing considerations. When you respond, please 1. Link to comparable extensions you have built or maintained—especially those using Manifest V3, Chrome Storage API, or declarativeNetRequest. 2. Outline the high-level approach you’d take. 3. Provide a realistic timeline and ball-park cost for the initial batch so I can plan milestones. I value clean, maintainable code and clear communication, and I’m ready to start as soon as we agree on scope.
Project ID: 40217173
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58 freelancers are bidding on average $148 USD for this job

Hello, I am really excited about the opportunity to collaborate with you on this project! It aligns perfectly with my skill set and experience, and I’m confident I can contribute meaningfully to your vision. I genuinely enjoy working on projects like this, and I believe we can create something both functional and visually engaging. Please feel free to check out my profile to learn more about my past work and client feedback. I’d love to connect and discuss the project details further your goals, expectations, and any specific features or ideas you have in mind. The more I understand your vision, the better I can bring it to life. I am ready to get started right away and will put my full energy and focus into delivering quality results on time. My goal is not just to complete the project, but to exceed your expectations and build a long-term working relationship. Looking forward to hearing from you soon! With regards! Nikhil
$250 USD in 7 days
8.1
8.1

Hello I have thoroughly reviewed your project description and am confident in my ability to assist you in completing it successfully. I believe it would be highly beneficial to delve deeper into the specifics of the job to determine the most effective way forward. I am open to scheduling an interview at your convenience, and I genuinely appreciate the chance to collaborate with you on this project. Your response is eagerly anticipated, and I'm excited about the prospect of working together. Thank you for considering my proposal. Looking forward to your prompt reply! Best regards Rekha!!!
$250 USD in 7 days
8.0
8.0

With 8+ years of software development, machine learning, and automation experience under my belt, I can confidently say I am the right choice for your Chrome extension project. I understand your need for concise and efficient utilities, and my specialized skill set - particularly in Python and web scraping - uniquely position me to build and maintain tailored extensions that align with your project scope. Let's connect
$130 USD in 3 days
6.5
6.5

Hello , I checked your project, and it looks interesting. This is something we already work on, so the requirements are clear from the start. We mainly work on PHP, C Programming, JavaScript, Python, Troubleshooting, Software Architecture, Google Chrome, Web Development, Documentation, API Integration We focus on making things simple, reliable, and actually useful in real life not overcomplicated stuff. Let’s connect in chat and see if we’re a good fit for this. Best Regards, Ali nawaz
$129 USD in 4 days
6.3
6.3

Hi there, I’m offering a 25% discount on this project. With experience in Chrome Extension development and JavaScript/HTML/CSS, I will build a custom extension tailored to your needs—enhancing browser functionality, automating tasks, or integrating with specific websites. I’ll start by understanding your workflow and the problem you want the extension to solve. I will then design the architecture, develop the front‑end (popup, options page, content scripts) and back‑end (background scripts, storage, API calls), and ensure it follows Chrome’s security and performance best practices. The extension can include features like data scraping, UI modifications, notifications, or custom shortcuts. You’ll receive a fully functional Chrome Extension with source code, documentation, and support for publishing to the Chrome Web Store if desired. Let’s build a tool that makes browsing work better for you. Best regards, Sohail
$30 USD in 1 day
6.7
6.7

Hello Dear! I write to introduce myself. I'm Engineer Toriqul Islam. I was born and grew up in Bangladesh. I speak and write in English like native people. I am a B.S.C. Engineer of Computer Science & Engineering. I completed my graduation from Rajshahi University of Engineering & Technology ( RUET). I love to work on Web Design & Development project. Web Design & development: I am a full-stack web developer with more than 10 years of experience. My design Approach is Always Modern and simple, which attracts people towards it. I have built websites for a wide variety of industries. I have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB What you'll get? • Fully Responsive Website on All Devices • Reusable Components • Quick response • Clean, tested and documented code • Completely met deadlines and requirements • Clear communication You are cordially welcome to discuss your project. Thank You! Best Regards, Toriqul Islam
$100 USD in 3 days
6.3
6.3

Hi there, I'm excited to bid on your "Custom Chrome Extension Development" project. My expertise in JavaScript, Manifest V3, Chrome Storage API, and declarativeNetRequest perfectly aligns with your need for lightweight, robust, and maintainable extensions. I've successfully developed and optimized numerous extensions leveraging these critical Chrome APIs to pass Web Store checks effortlessly. My high-level approach: 1. **Discovery & Strategy:** Analyze existing legacy code and new requirements, focusing on MV3 architecture, service workers, and content script design. 2. **Development & Optimization:** Build clean, performant JavaScript solutions (using pure JS/React for UI if needed), ensuring minimal memory footprint and fast startup. 3. **Quality Assurance:** Thorough testing for functionality, permissions, and performance, followed by packaging CRX for smooth upload. 4. **Documentation & Handoff:** Provide detailed source code (Git/GitHub), clear README, and hand-off notes for future maintenance. For an initial batch of 1-2 focused extensions, I estimate a timeline of 1-2 weeks, with a ballpark cost typically ranging from $500-$1000 per extension, depending on specific complexity. I value clean code and transparent communication, and I’m ready to start as soon as we agree on scope. Regard's Nikhil Chandra Roy. Nikhil Chandra Roy.
$140 USD in 7 days
6.3
6.3

As an experienced AI Mobile & Web Developer, my skillset aligns perfectly with your project needs. I've successfully built and maintained various Chrome extensions, some utilizing the Manifest V3, Chrome Storage API and declarativeNetRequest you mentioned. If you'd like a closer look at my work, I can provide you with thorough examples that demonstrate the clean, maintainable code I value. In regard to the high-level approach for this project, I intend to bring my understanding and expertise in high-performance technologies to ensure that these simple utilities function flawlessly for you. Our initial milestone will be to build the new extensions and refine the legacy codebases, then move on to configuring Manifest V3 and optimizing performance, memory footprint and start-up time. Lastly, I'll focus on seamless troubleshooting to resolve any installation or permission issues. I recognize the importance of a realistic timeline and budget and I assure that both would be crafted meticulously considering effective yet timely delivery of quality work. As a developer well-versed in your mentioned areas, I estimate our collaboration will require X weeks/months and will cost around $X. Ready to demonstrate how design, technology and compelling content can converge in the most user-friendly way possible? Let's get started!
$30 USD in 1 day
5.9
5.9

Getting lightweight Chrome extensions to install cleanly, run smoothly, and pass every Chrome Web Store check can be a real headache, especially with changing requirements around Manifest V3 and tricky permission issues. It’s frustrating when buggy installs or unclear code slow everything down and make maintenance a pain. You can expect polished, reliable extensions that not only meet Chrome’s latest guidelines, but are easy to update and understand in the future. First, I’ll review your existing codebases and requirements, then build or refine each extension with a focus on performance and clean installs. Next, I’ll optimize scripts and permissions so every extension passes validation and runs efficiently. Finally, I’ll deliver ready-to-upload CRX packages, source code with clear instructions, and concise hand-off notes for future-proofing. Could you share which legacy extensions you’d like prioritized, or any specific Chrome APIs you want used?
$139 USD in 7 days
5.9
5.9

Dear Hiring Manager, ➡ I am an experienced Chrome extension developer specializing in lightweight, utility-focused extensions built with Manifest V3. My approach ensures clean installation, smooth performance, and easy maintenance across the latest Chrome releases. ➡ I will build new extensions and refine your legacy codebases, configuring permissions, background/service-worker scripts, and content scripts to meet Chrome Web Store requirements. Performance, memory optimization, and troubleshooting will be prioritized for reliable operation. ➡ Deliverables include ready-to-upload CRX packages, well-documented source code in a version-controlled repository, and concise hand-off notes covering key functions, APIs, and future-proofing. ➡ I have developed similar extensions using Manifest V3, Chrome Storage API, and declarativeNetRequest, and can share links and details upon request. My timeline and cost estimates will be transparent and tailored to your needs. Best Regards, Mayank Saluja
$125 USD in 5 days
5.6
5.6

Hello , We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on PHP, C Programming, JavaScript, Python, Troubleshooting, Software Architecture, Google Chrome, Web Development, Documentation, API Integration Please come over chat and discuss your requirement in a detailed way. Thank You
$140 USD in 7 days
4.9
4.9

Greetings, I appreciate your interest in creating a set of lightweight Chrome extensions. It sounds like you’re looking for someone to develop new extensions while also refining existing ones. My approach would involve focusing on the specific functionality of each extension and ensuring they comply with the latest Chrome Web Store requirements, particularly using Manifest V3 and optimizing performance. I have experience in building extensions that utilize the Chrome Storage API and I’m familiar with handling background scripts and permissions effectively. This helps in creating extensions that are not only smooth to run but also easy to maintain in the long run. One question I have is: what specific functionalities are you envisioning for these new extensions? This will help me align my development approach with your vision. Best regards,
$85 USD in 2 days
4.7
4.7

Hi there, I understand you need clean, lightweight Chrome extensions tailored for seamless installation and smooth performance on the latest Chrome versions. With extensive experience developing and refining Chrome extensions using Manifest V3, Chrome Storage API, and declarativeNetRequest, I am confident in delivering exactly what you need. I’ll build new utilities, optimize legacy code, and ensure robust permission setups compliant with Chrome Web Store standards. The final delivery will include fully tested CRX packages, well-documented source code in version control, and clear hand-off notes to make future maintenance straightforward. I propose starting with a thorough review of your legacy codebases, followed by iterative builds and testing phases. A realistic timeline for the initial batch would be around 10 days, with a total budget estimate near $220, offering great value for quality and sustainability. Looking forward to discussing the scope and getting started soon. Could you please share the legacy codebases you want refined and any specific utilities you have in mind for the new extensions? Best regards,
$155 USD in 28 days
4.9
4.9

? Let's streamline your Chrome extensions seamlessly! As an experienced Chrome extension developer with 5 years of expertise, I've honed my skills in building and maintaining similar lightweight extensions. I've worked on projects emphasizing clean, professional code that is easily maintainable and user-friendly. I'll ensure your extensions install cleanly, run smoothly on the latest Chrome versions, and are easy to manage. My solutions focus on optimized performance, minimal memory footprint, and quick startup time. I've successfully worked on Manifest V3 and integrated various APIs ensuring seamless functionality. I’d love to chat about your project! Worst case, you get free advice that can guide your project. Regards, Chirag Pipal
$200 USD in 7 days
4.7
4.7

Hi there, I read your plan for lightweight Chrome extensions and it sounds clear. You need small tools that install cleanly, follow MV3 rules, and stay easy to maintain. I’ve shipped several MV3 extensions using Chrome Storage API and declarativeNetRequest, so the setup is familiar. I’d keep things simple: • Build each extension with clean MV3 structure • Set up service workers, permissions, and tests to avoid Web Store errors • Optimise load time and memory • Clean up the legacy code you share I can start right away and deliver the first batch within a few days depending on complexity. Which parts of your legacy codebases do you expect to reuse inside the new MV3 builds, and are there any permission models you want preserved? Thanks, Slavko
$50 USD in 1 day
4.9
4.9

As an award-winning CEO and the head of a dynamic team at Prime Code Tech, I'm well-equipped to handle your Custom Chrome Extension project. I have a wealth of experience in designing and developing innovative solutions that cater to different market needs, and this includes extensive experience creating useful yet lightweight Chrome extensions. I can guarantee that the extensions will install seamlessly, run smoothly on the latest Chrome versions, and remain easy to maintain. In terms of approach, I prioritize clean and maintainable code throughout the development process. With compatibility in mind, I would utilize my expertise in Manifest V3, Chrome Storage API, and declarativeNetRequest to ensure successful deployment on the Chrome Web Store. Additionally, I'd provide a detailed README alongside version-controlled source code for your easy reference, empowering you to understand the key functions and APIs used. Regarding timelines and cost, I strive for efficiency without compromising quality. I estimate an initial batch completion within [estimated time] and an approximate cost of [estimated cost]. However, rest assured that this is just a "guesstimate" at this stage, and I'll be happy to refine these figures once we identify clear milestones. In summary, let's embark on this journey together as I promise you not only great results but also open lines of communication for a productive relationship.
$80 USD in 7 days
4.2
4.2

Hello, I can build and refine lightweight, maintainable Chrome extensions that install cleanly, pass Manifest V3 requirements, and run efficiently on current Chrome releases. I’ve worked on utility-style extensions where correctness, permissions discipline, and long-term maintainability matter more than feature bloat. Approach: • Review scope and any legacy codebases to identify quick wins and refactors • Implement Manifest V3 correctly (service worker lifecycle, permissions, content scripts) • Use Chrome Storage API and messaging cleanly to avoid race conditions • Optimize performance and startup time; keep memory footprint minimal • Test installs, permissions, and edge cases to ensure Chrome Web Store compliance Deliverables: • Production-ready CRX packages for upload • Source code in a version-controlled repo with clear README and build steps • Short hand-off notes covering key APIs, extension flow, and future-proofing tips Timeline & cost (initial batch): • 2–4 days per simple utility (new build) • 1–2 days per legacy extension (refine/fix) • Fixed price or hourly—happy to align once scope is confirmed I work hands-on as a single developer with clear communication and clean code standards. If you share the extension ideas and any existing repos, I can confirm timelines and a precise quote quickly. Thanks, Dax Manning
$130 USD in 5 days
4.3
4.3

Hello. How are you? I've checked your project description. I am a senior chrome extension developer with over 10 years experience. I am familiar with Backend (Laravel, Node.js, ) endpoints ... I can perfectly implement your project. Please contact me. Thank you. Joizel Morojo
$100 USD in 2 days
4.7
4.7

I have extensive experience developing lightweight Chrome extensions using Manifest V3, Chrome Storage API, and declarativeNetRequest, ensuring clean installs and smooth performance on the latest Chrome versions. I will start by reviewing your legacy codebases, then build new extensions focusing on minimal permissions and optimized background/service-worker scripts. My approach emphasizes clean, maintainable code with thorough testing to prevent installation or permission issues. Deliverables will include fully functional CRX packages, source code in a Git repository with clear README and build instructions, plus concise hand-off notes covering key APIs and future-proofing. I estimate 2-3 weeks for the initial batch, with a budget around $150-$180 depending on complexity. I prioritize clear communication and am ready to begin once scope is finalized.
$140 USD in 7 days
4.0
4.0

Hello, As an experienced full-stack and smart contract engineer with over eight years in building production web platforms and blockchain systems, I bring to the table a unique blend of skills that is ideal for your Chrome extension project. While PHP and Python aren't specific languages to creating Chrome extensions, my solid grasp of JavaScript provides a strong foundation for successful extension development -- one that I have demonstrated time and again. Additionally, when it comes to project scope alignment, I have a proven track record in successfully delivering sophisticated projects on-time and within budget while meeting high-quality standards needed for maintainable code. My extensive work in Ethereum and React-Node stacks has cultivated my ability to tackle complex projects with multiple layers, such as your need for Manifest V3, permissions, background/service-worker scripts, and content scripts configurations. Drawing from the depth of my knowledge as a developer, not only can I build new extensions promptly but I can also effectively troubleshoot any installation or permission issues during testing. Rest assured that with me, you'll receive fully functional CRX packages ready for upload along with a comprehensively documented version-controlled repository. I value clean code and clear communication, two traits which become particularly crucial in maintaining easy-to-manage Chrome extensions. Let's get started today! Thanks!
$180 USD in 2 days
4.1
4.1

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