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I have a single-page Excel file that needs to live online behind one shared password. After logging in, two permission tiers should apply: Admin (full rights) and Editor (data entry only). Once inside, users must be able to view the sheet in table form, change any value, save, and—crucially—step back through a complete, timestamped history of every revision so nothing is ever lost. Clean, intuitive UI is important; I’d like it to load quickly on desktop and mobile. A simple admin screen for changing the common password and restoring prior versions will round things out. When the build is finished, please hand over the source code, deployment notes, and a brief user guide so I can host it on my own server.
Project ID: 40462309
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Active 6 days ago
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Hello Hi there, I understand you need your single-page Excel file to become a dynamic, live web application. With 5+ years of full-stack experience, I specialize in transforming spreadsheets into user-friendly online tools that streamline data management and accessibility. Let's discuss how I can build a robust solution for you. Giáp Văn Hưng
$250 USD in 7 days
6.7
6.7
123 freelancers are bidding on average $142 USD for this job

I can definitely build the online, password-protected Excel app you need. I understand your requirements completely and can handle this perfectly. I'm ready to start right away. You only pay once you're 100% happy with the finished app. Let's chat if you're ready to get started.
$100 USD in 1 day
8.0
8.0

Hello, As a proficient frontend developer, stopping at nothing short of excellence and efficiency, I believe my skills align flawlessly with your project. My expertise in JavaScript will lend itself extremely well to the task at hand, allowing me to ensure a seamless user-interface providing a crisp, clean and intuitive experience both on desktops and mobile devices ensuring quick load times. Additionally, my team has a wealth of knowledge and practice in developing complex systems that involve multiple authorization levels. We can design a robust login system for you that includes the two permission tiers, Admin and Editor, perfectly tailored to your specifications. Considering your preference for a detailed revision history, we can integrate version control capabilities into the web app. Rest assured that your data would always be secure. Upon completion of the project, not only will I deliver the source code but also comprehensive deployment notes and a user guide so you can easily manage the application on your own server. Frankly speaking, client satisfaction is at the heart of our endeavors and we are fully committed to bringing you exceptional workmanship. Give me the opportunity to turn this vision of yours into a digital reality and I won't let you down. Let's build something amazing together! Thanks!
$180 USD in 3 days
7.7
7.7

Hi, You need an Excel file accessible online with password protection—simple and secure. Quick question: does this data need live updates, or is it static content users just view? We can build this as a lightweight web app in a day or two. Password auth, clean interface, done. Message me to discuss. Best Regards, Hasan
$200 USD in 7 days
7.5
7.5

Migrating your Excel file into a secure, version-controlled web application is exactly what I do. I specialize in replacing fragile spreadsheets with robust, multi-role data systems. Here is my approach: • Architecture: I will build a React frontend and Python/PostgreSQL backend. PostgreSQL is perfect for maintaining an immutable, timestamped audit trail of every revision so no data is ever lost. • Roles & UI: I will implement the shared-password entry, routing users to Admin or Editor tiers. The mobile-responsive data table will allow easy edits, while the Admin dashboard will manage the password and instantly restore prior versions. • Handoff: You will receive the source code, deployment notes, and a user guide for your server. My experience directly aligns with this. I recently built an Automated Sales Commission SaaS that replaced manual spreadsheet workflows with dynamic, Excel-like web functionality. I also developed a Python Deterministic Scoring Engine, removing Excel dependency while adding comprehensive, timestamped audit trails. For my full portfolio and case studies: [https://www.freelancer.com/u/microlent](https://www.freelancer.com/u/microlent) ~ Rajesh
$160 USD in 20 days
7.8
7.8

AVAILABLE TO START IMMEDIATELY. FREE SAMPLE PROVIDED.,,. I will build your secure, responsive web application using Python, SQLite, and JavaScript, delivering the interactive Excel-compatible data table, dual-tier access controls, timestamped revision history, admin restore panel, and full source code with deployment notes. 10+ years Advanced Excel experience, Certified VBA Programmer, MBA.
$51 USD in 1 day
6.5
6.5

Hello, I understand you need a secure web-based Excel-style application where a single password gates access, followed by role-based permissions (Admin and Editor), allowing users to view and edit tabular data while maintaining a complete timestamped version history of every change. The solution must be lightweight, fast, mobile-friendly, and include admin controls for password management and restoring previous versions. I will build a secure web app using a modern stack (e.g., Node.js or PHP backend with a structured database such as MySQL or SQLite) where the Excel file is converted into a dynamic editable grid interface. Every edit will be logged as a versioned record with timestamps and user role tracking, enabling full rollback history. Admin features will include password updates, user role management, and version restoration, while Editors will have controlled input-only access. The UI will be optimized for speed, responsive layout, and clean usability across desktop and mobile devices. The final delivery will include full source code, deployment instructions for your server, and a simple admin/user guide so you can maintain and host it independently. The system will be designed to be secure, maintainable, and easily extendable for future features like multi-user authentication or file import/export. Thanks, Asif
$250 USD in 4 days
6.2
6.2

Hi there, I’ve read your Password-Protected Excel Web App spec and I’m confident I can build a clean, fast, responsive UI with a robust backend that keeps every revision safe. I’ll implement a lightweight login with two roles (Admin and Editor), enforce role-based permissions on data entry and viewing, and keep a full, timestamped history of every change for auditability. The plan uses a small, secure serverless or Node.js backend with a SQLite/Postgres store for your spreadsheet data and a simple API to load the sheet as a table, save changes, and restore prior versions if needed. The admin screen will include a password change function and a restore history feature so you can revert safely without downtime. I’m interested in the project and I have several experience with similar projects, including secure multi-user Excel-like web apps, versioned data stores, and responsive UI that works on desktop and mobile. I’ll deliver a clean codebase, deployment notes, and a user guide so you can host it on your own server, with getting started docs and a brief maintanence checklist to keep things running smoothly. Best regards,
$155 USD in 11 days
6.4
6.4

Hello, I can build this as a lightweight, secure web application that preserves the simplicity of your Excel workflow while adding controlled access, revision tracking, and reliable data recovery. From your description, the key requirement is not just editing the spreadsheet online, but maintaining a complete audit trail where every change is versioned and recoverable. I would structure the system specifically around that reliability and ease of use. Final delivery will include: • Full source code • Deployment/setup instructions • Database schema/configuration notes • Brief user/admin guide • Assistance preparing it for self-hosting on your server If useful, I can additionally implement: • Automatic backups • CSV/Excel export • Change highlighting between revisions • Activity logs • Optional multi-user authentication later I’m available to start immediately and can keep communication consistent throughout the build process. Best regards ADEEL
$140 USD in 7 days
6.4
6.4

Hi, I can build this as a lightweight web app that turns your single-page Excel file into a secure online editable table with shared-password access, role-based permissions, and complete revision history. I have experience building data-entry portals, spreadsheet-style interfaces, backend APIs, database storage, and version tracking systems. For your project, I can create a clean responsive UI where users log in, view the sheet in table format, edit values, save updates, and review timestamped revisions. Admin users can have full control, while Editors can be limited to data entry only. The revision system can store every saved change safely, allowing admins to compare, restore, and roll back to earlier versions when needed. I can also include an admin screen for changing the shared password, managing roles, and restoring previous data states. The final delivery will include source code, deployment notes, and a short user guide so you can host and manage it on your own server. I would be grateful for the opportunity to build this cleanly and will gladly accept any feedback you may have. Best, Justin
$140 USD in 7 days
6.4
6.4

I can build a secure web-based Excel management system with role-based access, full edit history tracking, password control, mobile-friendly UI, and complete source code with deployment and user documentation for self-hosting.
$140 USD in 7 days
6.0
6.0

Hey, i will build a secure web based Excel style data system where your file lives online behind a shared login with Admin and Editor roles, full edit capability, and complete timestamped version history so every change is tracked and recoverable. I will implement a fast responsive table interface with clean UX, role based access control, password management screen, and a versioning system that lets Admin restore any previous state while keeping the system lightweight and easy to host on your own server. Do you want the history tracking to be visible per cell or only per full row change for your workflow Please Check my Profile: https://www.freelancer.com/u/zainalitariq245 Best Regards: Zain Ali
$150 USD in 7 days
5.7
5.7

Hi, I’ve done a project just like this before and got great results. I have over 50 positive reviews on similar work. I can start right away and send you a sample that matches your project if needed. I have these skills JavaScript, Excel, Frontend Development, API Development, Database Management, UI / User Interface, Backend Development and Web Development. Just one quick question before I begin which I prefer to discuss in the chat.. Looking forward to your reply!
$180 USD in 1 day
5.3
5.3

Converting Excel spreadsheets into secure, interactive web apps is a sweet spot of mine; I recently migrated a complex financial modeling sheet into a clean, responsive web application while preserving all underlying formulas. I understand the goal here is to transition your single-page sheet into a lightweight web tool protected by a secure, shared password gateway. We can deploy this quickly so your users experience zero friction and enjoy a modern, responsive interface that works flawlessly across both desktop and mobile devices. To build this, I suggest a lightweight front-end using HTML5 and Tailwind CSS, coupled with robust JavaScript (utilizing SheetJS if necessary) to replicate and handle your Excel calculations instantly in the browser. To ensure your formulas and proprietary data remain secure, we will implement a lightweight serverless backend (via Vercel or Netlify) to handle the shared password authentication, preventing unauthorized users from bypassing the gate via client-side inspect-element workarounds. Once authenticated, the web app will load dynamically, keeping your source file safe and the user experience fast, clean, and entirely self-contained. Does the Excel sheet rely on any complex VBA macros or external data connections, or is it driven purely by standard formulas and cell inputs? Also, do you have a preferred hosting provider, or would you like me to set up a secure, cost-effective, and automated deployment pipeline for you? Let's connect in the chat to review the sheet's layout, and I would be happy to jump on a brief call if you'd like to quickly align on the design and functional requirements.
$193 USD in 21 days
5.2
5.2

Hi, I can turn your Excel-based workflow into a secure web app with password access, role permissions, and full version history. I saw you need Admin and Editor roles with undoable, timestamped changes and I have 7 years full stack experience building data-driven web tools with audit trails and secure access control. I will build a lightweight responsive web app that loads your sheet as an editable table, logs every change, and lets admins restore any previous version safely. Do you already prefer a stack like Node.js or PHP, or should I choose the simplest option for fast deployment and easy hosting Best Regards, Fizza Nadeem K
$90 USD in 4 days
5.3
5.3

Hello, I can build a secure web based system that converts your Excel sheet into an online editable table with full version history and role based access. The platform will support Admin and Editor permissions allowing controlled data entry while preserving a complete timestamped audit trail of every change. Users will be able to edit values save updates and restore previous versions easily through a clean responsive interface optimized for desktop and mobile. I will also include an admin panel for password management version recovery and basic user controls. The solution will be lightweight fast and easy to self host with full source code deployment instructions and a simple user guide included. Ready to start immediately and deliver a clean reliable system.
$150 USD in 7 days
5.2
5.2

Hello, I understand your requirements and surely can help you with this. Let's chat and discuss this project in more detail. I am excited to collaborate with you, Fahad.
$100 USD in 1 day
5.4
5.4

I can build a secure web-based Excel-style application with a shared login system, role-based access (Admin and Editor), and full version-controlled edit history with timestamps so every change is traceable and reversible. I’ll ensure a fast, responsive UI with a clean table interface for editing data, plus an admin panel for password control and version restoration, along with full source code and deployment documentation for your own hosting. Best Regards, Muhammad
$30 USD in 1 day
5.0
5.0

Hello, I have 4 years of experience in Web Development, Frontend Development, Backend Development, and UI design. I understand your requirement for a password-protected Excel Web App with different permission tiers and revision history. I am confident in providing a professional solution that includes a clean and intuitive UI for both desktop and mobile platforms. I have expertise in JavaScript, Excel, UI design, Web Development, Backend Development, Database Management, and API Development. I have carefully read the project requirements and believe I can deliver this project with perfection. Let's connect in the chat to discuss the details further. Looking forward to collaborating on this project. Best regards, Taimoor from Pixels Soft
$199 USD in 7 days
4.9
4.9

I can build a web-based system for your Excel file with a single shared login password, including two permission tiers, a clean table-based interface for viewing and editing data, and full timestamped version history tracking for every change so nothing is ever lost. The system will be fully responsive, optimized and will include an admin panel to manage the shared password and restore previous versions when needed. Once completed, I will provide the full source code, deployment instructions Lets chat
$90 USD in 2 days
4.7
4.7

Hello, I’ve gone through your job description and understand that you need a secure web app to manage an Excel file with login access, role-based permissions, and full version history tracking. With 5+ years of experience in full-stack development, I can build a clean and efficient solution. What I can help you with: • Build a web-based Excel table with edit and save functionality • Implement Admin and Editor roles with password-protected access • Add full timestamped version history with restore option Warm regards, Monica Bhatia
$100 USD in 2 days
5.0
5.0

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