GetPayslip.com - Free Payslip Generator
I developed GetPayslip.com as a self-built SaaS product to help business owners, HR managers, and payroll teams generate professional payslips quickly. The application enables real-time editing with instant PDF generation, eliminating the need for separate editing and download steps.
Challenge & Goals
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Implementing live editing functionality that updates the payslip preview in real-time
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Generating PDF files directly in the browser without server-side processing
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Handling file uploads (logo and signature) with preview functionality
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Creating a flexible form system for custom earnings and deductions fields
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Implementing color customization for background and text while maintaining readability
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Ensuring alignment controls work properly for logo and signature positioning
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Optimizing PDF generation performance for instant downloads
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Building a user-friendly interface that requires no training
Solution & Implementation
I built the application using Next.js with React for the frontend, leveraging client-side PDF generation libraries to enable instant downloads without server round-trips. Implemented a reactive state management system where all form inputs update the payslip preview immediately. Created a dynamic field system that allows users to add or remove custom earnings and deductions rows. Integrated file upload handling with image preview and validation. Built alignment controls using CSS flexbox and grid for precise positioning of logo and signature. Implemented a color picker system with accessibility checks to ensure sufficient contrast ratios. Used Tailwind CSS for rapid UI development while maintaining responsive design across all devices.
Features Delivered
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Live payslip editing with real-time preview updates
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Instant PDF generation and download without page refresh
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Custom logo upload with preview and alignment controls
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HR signature upload with preview and positioning options
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Dynamic custom fields for earnings and deductions
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Color customization for background and text with contrast validation
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Alignment controls for logo and signature positioning
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Responsive design optimized for desktop, tablet, and mobile
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Form validation ensuring all required fields are completed
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Clean, intuitive interface requiring no training
Results & Impact
Quantitative Results
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PDF generation time under 1 second
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Page load time under 2 seconds
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Zero server-side processing required for PDF generation
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Supports unlimited custom fields without performance degradation
Qualitative Impact
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Instant feedback improves user experience and reduces errors
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No learning curve - users can generate payslips immediately
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Professional output builds trust with employees and stakeholders
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Self-service tool reduces HR administrative workload
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Free tool accessible to small businesses and freelancers
Project Screenshots
Lessons Learned & Technical Insights
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Client-side PDF generation eliminates server costs and improves user experience
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Real-time preview updates create a more engaging and intuitive editing experience
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Dynamic form fields require careful state management to prevent performance issues
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File upload handling needs proper validation and error messaging
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Color customization must include accessibility checks for contrast ratios
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Alignment controls benefit from visual feedback and preview positioning
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Progressive enhancement ensures the tool works even if JavaScript is disabled partially
Technologies Used
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Next.js
React framework providing SSR capabilities and optimal performance for the web application
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React
Component-based architecture for interactive UI with real-time updates and state management
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Tailwind CSS
Utility-first CSS framework for rapid responsive UI development
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PDF Generation Library
Client-side PDF creation enabling instant downloads without server processing
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File Upload Handler
Image upload processing with preview and validation for logos and signatures
Need a Frontend Developer?
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