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I need a Microsoft Word Add-in built with modern C# on the latest .NET framework that focuses exclusively on advanced text-formatting tools. The add-in should install seamlessly within Word for Windows, expose its features through a custom ribbon group, and run without external dependencies outside standard Office and .NET libraries. Core scope • Implement rich formatting commands—think custom style presets, fine-grained font controls, and one-click “clean & re-apply” logic—delivered through an intuitive UI that feels native to Word. • Use the current Long-Term Support version of .NET; the solution must compile under Visual Studio and follow Microsoft’s recommended VSTO or Office Add-in patterns for C#. • Persist user settings locally so preferred options survive across sessions, yet never write outside the user profile. • Code must be well-structured, commented, and ready for future expansion (e.g., additional template features down the line). Deliverables 1. Visual Studio solution (.sln) with all source code, assets, and a signed deployable installer (MSI or ClickOnce). 2. Step-by-step build and installation guide in Markdown. 3. Short demo document or screen-capture showing the formatting tools in action. 4. Two weeks of post-delivery bug fixes for issues reproducible on Word 2019 or Microsoft 365 (Windows desktop). Acceptance criteria • Add-in loads without security warnings on a clean machine. • Ribbon buttons perform their designated formatting actions on selected text reliably. • No unhandled exceptions appear in the Visual Studio diagnostics output when running in debug mode. • All requirements above are met and confirmed during a live hand-over session. If any clarification is needed on Word versions, UI mockups, or specific style behaviors, let me know early so we can lock requirements before you dive into coding.
Project ID: 40593572
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Dear Client, I can deliver a robust, high-performance Microsoft Word Add-in built using modern C# and the latest .NET LTS framework, adhering strictly to your requirements for native integration, zero external dependencies, and local-only state persistence. My Technical Approach: - Framework & Architecture: Built using VSTO on the latest .NET LTS framework, ensuring seamless execution within Word for Windows. - UI & Ribbon Integration: Custom Office Ribbon group featuring native-feeling controls for custom style presets, advanced font configurations, and one-click "clean & re-apply" formatting logic. - Settings & Security: Local user profile configuration storage to persist user preferences across sessions without external dependencies. - Deployment: Fully packaged Visual Studio solution with a professionally signed installer (ClickOnce or MSI) for secure, warning-free deployment. I am ready to start immediately and ensure a smooth, fully tested handover session. I look forward to the opportunity to work for you. Sincerely, Raphael
$250 USD in 3 days
5.5
5.5
167 freelancers are bidding on average $469 USD for this job

One thing we've learned while building Microsoft Office extensions is that the challenge isn't adding ribbon buttons it's making the add-in feel like a native part of Word. A clean architecture, responsive ribbon actions, reliable document manipulation, and robust error handling are what make an add-in stable enough for everyday use. I'm currently running an offer for new clients looking for a long-term development partner. I can provide a 1-day free trial so you can evaluate my development approach and code quality before making any commitment. We've developed enterprise desktop applications, document automation tools, and custom Microsoft Office solutions using C#, .NET, and VSTO. Our experience includes building extensible plugins, document processing workflows, and Windows applications with a strong focus on maintainability and performance. For your add-in, I'd recommend using VSTO with .NET 8 LTS (where compatible with your Office version) and a modular architecture separating the ribbon UI, formatting engine, settings manager, and document services. The solution will include custom ribbon controls, advanced formatting presets, font management, one-click formatting cleanup and reapplication, locally persisted user preferences, a signed MSI/ClickOnce installer, complete source code, build documentation, and post-delivery support. Everything will be structured to make future features, such as templates and document automation, straightforward to add. Thanks, Rajesh
$500 USD in 5 days
8.6
8.6

Hello I am Windows Desktop application developer and I have over 15 years of experience with C# and .NET Also I am experienced with creating Excel/Word Add-ins and rich formatting. I am able to create custom ribbon group, use the current Long-Term Support version of .NET, and make it without external dependencies. I am ready to start working immediately.
$270 USD in 2 days
8.4
8.4

A reliable Word Add-in isn't just about adding ribbon buttons—it needs to feel native, perform formatting consistently, and remain easy to extend as new document tools are introduced. The architecture is what determines whether future enhancements become simple or expensive. I would build the add-in using modern C# with the latest .NET LTS, following Microsoft's recommended VSTO patterns. The solution will include a custom ribbon UI, reusable formatting engine, local user preference storage, a signed installer, clean project structure, and thorough testing to ensure stable behavior on both Word 2019 and Microsoft 365. I have extensive experience developing enterprise-grade .NET applications with C#, Visual Studio, and scalable software architecture, focusing on maintainable, production-ready code. Before development begins, I'd like to confirm whether you already have predefined formatting presets or would like me to propose a default set based on common document workflows. Best Ahtesham
$600 USD in 10 days
7.6
7.6

Hello Sir, I am a highly skilled VSTO Add-in developer and I can deliver your required Add-in in quick time and with precision. I have delivered several Add-ins over the past decade for multiple clients around the globe. Lets discuss and kick off. Regards, Usman
$500 USD in 8 days
7.5
7.5

Hi, I am an experienced .NET developer. I can create a word add-in for advance text formatting. We will deliver the visual studio solution, and it will be built on .NET LTS version. Let's discuss in chat. If you can provide mockup, that will be great.
$500 USD in 7 days
7.3
7.3

Got the given description -------------->>>>>>C# Word Add-in: Text Formatting. I am highly proficient to work on this project . I am Passionate .NET /Full stack developer having rich experience with all the latest technologies with so many successful Tasks. I have some queries to give you accurate time and price Please ping me to get started and provide you great results. Thanks
$700 USD in 7 days
7.1
7.1

As an experienced and highly recommended C# developer with a strong background in building robust Microsoft-centric solutions like the one you're seeking, I am confident I have the expertise to successfully complete this project. My track record speaks for itself, with 94% job completion rate and 100% satisfaction within budget. Indeed, client satisfaction and quick delivery align perfectly with my work ethic. You can rely on me to develop a comprehensive, well-structured and commented codebase, ensuring future-proofing that can handle potential expansions or additional features you may require in the long run. My deep understanding of the latest .NET framework together with the recommended VSTO or Office Add-in patterns for C# development will ensure smooth integration within Microsoft Word without any external dependencies, improving security and UX. Additionally, my skills extend beyond mere programming to encompass effective communication and problem-solving abilities. I commit to thoroughly understand your specific requirements right from the beginning, addressing any queries or clarifications early on. By hiring me, you'll not only get your desired deliverables of high-quality coding (including signed deployable installer) but also a responsive partner who knows how to keep the lines of communication open at all times. Let's create an amazing Word Add-in!
$500 USD in 7 days
6.6
6.6

Hello Sir/MAM I am a skilled full stack developer. Having rich experience in Java , C++ , C , C# , Python , Eclipse , Sql , Mysql , .Net ,Oracle , Object Oriented Programming , Data Structure , Algorithms, Linux , Windows , Cloud , Azure . I have a perfect grip on “Artificial Intelligence” “Automation” , and work in “Machine Learning” Deep Learning “Computer Vision ”. My track record as demonstrated in my 100% job completion and 5-star review rating showcases My ability to deliver exceptional results on time and with utmost quality I believe that my skill set makes me the ideal candidate for this project Please come on chat we will discuss more about this I will be waiting for your reply . Thanks and Best Regards
$251 USD in 1 day
6.3
6.3

As a software engineer and your prospective Microsoft Word Add-in developer, I bring to the table comprehensive expertise in C# on the latest .NET framework, which aligns perfectly with your project requirements. My vast experience in full-stack web development and desktop applications using C# allows me to create solutions that are not only well-structured and optimized but also consistent with Microsoft's recommended VSTO or Office Add-in patterns. One of the key highlights of my profile is my ability to deliver future-proof solutions, an attribute specifically mentioned in your project description. My code is always well-commented, thoroughly tested for exceptions, and designed with scalability in mind. Plus, my knack for maintaining clear and concise documentation would definitely play a critical role in creating a 'Step-by-step build and installation guide' for you. Lastly, as an avid problem-solver who doesn't shy away from responsibilities, I guarantee a seamless delivery with no security warnings during installation, flawless functioning ribbon buttons, and negligible post-delivery bug fixes. Choosing me means relying not only on technical competence but also on strong communication skills for any early clarifications needed. Together we can surpass your expectations!
$753.33 USD in 4 days
6.3
6.3

Hi there, I am excited to submit my proposal for your C# Word Add-in project, which focuses on advanced text-formatting tools. Your emphasis on creating a seamless and intuitive user experience within Word aligns perfectly with my expertise. With extensive experience in .NET, C# programming, and Microsoft Office development, I have successfully delivered several similar projects, ensuring robust functionality and user-friendly interfaces. I understand the importance of using the latest .NET framework and adhering to Microsoft's recommended patterns for VSTO and Office Add-ins. My approach will involve developing a custom ribbon group with rich formatting commands, enabling users to apply custom style presets and fine-grained font controls effortlessly. I am committed to ensuring the add-in installs seamlessly, loads without security warnings, and maintains user preferences across sessions. The deliverables will include a comprehensive Visual Studio solution with source code, a detailed build and installation guide, and a demo showcasing the add-in's capabilities. I am also prepared to provide post-delivery support to address any issues that may arise. I am confident that my skills and dedication to quality align with your project goals. I look forward to the opportunity to collaborate and bring this project to fruition. Best Regards,
$500 USD in 10 days
5.9
5.9

Hi, I can build your Word add-in with a clean custom Ribbon for advanced text formatting—style presets, font controls, and one-click clean/reapply formatting. I’ll use the supported VSTO C# approach for Word 2019 and Microsoft 365 on Windows, with user settings saved locally. You’ll receive the full Visual Studio solution, installer, build guide, and a short demo. Note: VSTO uses .NET Framework 4.8/4.8.1 rather than modern .NET. For a warning-free installer, a trusted code-signing certificate will be needed. I’m ready to start and can confirm the exact styles and ribbon layout with you first.
$500 USD in 2 days
5.7
5.7

I'll build the Word Add-in in C# using VSTO on the latest .NET LTS — custom ribbon group, rich formatting commands, style presets, fine-grained font controls, and one-click clean and re-apply logic that feels native to Word. User settings persisted locally, signed MSI installer, Markdown build guide, and two weeks of post-delivery bug fixes included. Let's talk over chat or hop on a call to lock requirements before coding starts.
$250 USD in 1 day
5.6
5.6

Hi, I reviewed your project: C# Word Add-in: Text Formatting. Your requirement involves Firebase, Microsoft Azure, and/or Power Platform integration—not a generic Laravel build. I can design the required data flow, connect APIs and cloud services, automate business processes, and implement secure synchronization with clear logging, monitoring, and error handling. I can work with Firebase/Firestore, Cloud Functions, Azure Functions, Azure Data Factory, Azure SQL, Dataverse, Power Apps, Power Automate, Power BI, .NET/C#, REST APIs, authentication, and production deployment. I will first confirm your current architecture, data sources, required workflows, access model, and acceptance criteria, then provide a practical implementation plan. Portfolio: https://www.freelancer.com/u/irfanui Regards, Mohammad 4th Dimension Partners
$750 USD in 1 day
5.8
5.8

Hi, I can build this Microsoft Word Add-in in C# using the latest .NET LTS and make sure it works smoothly with Word 2019 and Microsoft 365 on Windows. The add-in will have a custom Ribbon section with the formatting tools you need, including style presets, detailed font controls, and the one-click "clean & re-apply" feature. I'll keep the code clean and organized so it's easy to maintain and expand in the future. User settings will also be saved locally so they stay available between sessions. You'll receive: * Complete Visual Studio solution with full source code. * Signed MSI or ClickOnce installer. * Build and installation guide in Markdown. * Demo document or screen recording. * Two weeks of bug-fix support after delivery. Before I start, I'd just like to confirm a few things: * Which Word versions should I support? * Do you already have a Ribbon design, or should I create one? * Do you have specific formatting rules for the style presets and the "clean & re-apply" feature? I can start right away once we lock down the requirements, and I'll keep you updated throughout the project. Thanks, Ozgur
$500 USD in 7 days
5.4
5.4

hello there, i am a senior software engineer, i can help you in this work and deliver a high quality work in perfect time. regards,
$750 USD in 7 days
5.3
5.3

I propose to develop a robust Microsoft Word Add-in with advanced text formatting capabilities, seamless integration, and user-friendly design. Leveraging my experience in developing Office Add-ins using C# on the latest .NET framework, I will ensure a solution that exceeds expectations. The add-in will include rich text formatting commands, intuitive UI, and local user settings storage. Deliverables will comprise a Visual Studio solution, installer, build guide, and demo document. Post-delivery bug fixes will be provided for two weeks. Success criteria include seamless loading, reliable execution of formatting commands, consistent performance, and meeting all requirements. I am committed to ensuring your satisfaction and proactively addressing any further needs or changes. Let's collaborate to deliver a high-quality solution tailored to your requirements.
$675 USD in 5 days
4.9
4.9

Hi, I went through your entire project description and have a clear understanding of what you're looking to achieve. I'll develop a production-ready Microsoft Word Add-in using modern C# and the latest .NET LTS framework, following Microsoft's recommended VSTO architecture. The add-in will integrate seamlessly into Word with a native ribbon interface, providing advanced text-formatting tools, custom style presets, fine-grained formatting controls, and one-click formatting actions, all within a clean and intuitive user experience. The solution will be modular, well-documented, and built for future expansion while securely storing user preferences within the user profile. I'll also provide the complete Visual Studio solution, a signed installer, setup documentation, a demo showcasing the add-in in action, and post-delivery support to ensure everything runs smoothly on both Word 2019 and Microsoft 365. I can start whenever you're ready and keep you updated throughout the development process to ensure every feature meets your expectations.
$300 USD in 1 day
5.0
5.0

✋ Hi There!!! ✋ The Goal of the project:- DEVELOP A MODERN C# MICROSOFT WORD ADD-IN WITH ADVANCED TEXT FORMATTING TOOLS AND A NATIVE WORD EXPERIENCE. I carefully read your complete project and understand you need a modern .NET Word Add-in with a custom ribbon, advanced formatting tools, local settings persistence, clean architecture, and a signed installer. I am the best fit because I build reliable Office add-ins using Microsoft best practices with maintainable and extensible code. 1. VSTO or Office Add-in with custom ribbon interface 2. Advanced text formatting, style presets, and clean re-apply tools 3. Local user settings with secure profile-based storage 4. UI design, database management, testing, and full source code delivery 5. MSI or ClickOnce installer, documentation, demo, and post-delivery support With 9+ years experience as a full stack developer, I have completed similar .NET, C#, Microsoft Office automation, and desktop application projects successfully. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$1,500 USD in 12 days
4.9
4.9

Hi there, Thank you for the detailed project description—it’s clear you have a strong vision for this Word Add-in, and we’re confident DemiVision LLC is the right team to bring it to life. We understand you’re seeking a robust, user-friendly Microsoft Word Add-in designed in modern C# that delivers advanced text-formatting capabilities directly through a native-feeling ribbon group. Your emphasis on seamless installation, adherence to Microsoft’s best practices, and future extensibility absolutely aligns with our development philosophy. Our team has a proven track record in creating Office Add-ins using the latest .NET LTS releases and Visual Studio, with deep expertise in VSTO patterns and the Office interop libraries. We’ve delivered similar solutions focused on enhancing document workflows, custom ribbon UI design, and implementing sophisticated formatting logic—always with an eye toward maintainability, user experience, and security. For your project, we propose a modular, well-structured solution that leverages the latest .NET features and the official VSTO toolkit. We’ll design an intuitive custom ribbon group that surfaces your advanced formatting tools, including custom style presets, granular font controls, and streamlined “clean & re-apply” actions. User preferences will be securely persisted within the user profile, ensuring a personalized experience each session. All deliverables—including the signed installer, clear documentation, and demo—will be crafted for easy review and handover. We’ll also provide thorough commenting and organization in the codebase so future extensions, such as additional template features, can be integrated smoothly. If you have any preferences around UI layout, specific style behaviors, or targeted Word versions, feel free to share them up front so we can tailor our implementation precisely to your needs. We look forward to collaborating and making your vision a reality.
$500 USD in 10 days
4.6
4.6

Hi, I can build the add-in as a clean C# VSTO solution that integrates directly into the Word ribbon without external dependencies, keeping settings in the user profile for seamless installation. I’ve done similar work with a C# Outlook add-in where we had to handle custom ribbon groups and text formatting without touching the registry outside the user’s AppData folder. I’d approach this using .NET 6 LTS with VSTO because it keeps the deployment stable and future-proof while avoiding COM registration issues. The biggest improvement will come from isolating the formatting logic so changes stay confined to the selected text and don’t interfere with Word’s native behavior. I’ll keep the code modular and provide a build guide that lets you reproduce the installer locally, so you can verify the output before deployment. This should give you a lightweight, maintainable tool that integrates naturally into Word without friction. If we’re aligned, I can start right now. Thanks, Denis.
$400 USD in 5 days
4.6
4.6

Edison, United States
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