The ultimate toolkit for developers and financial planning. Fast, client-side, and 100% free.
Generate JSON, CSV, and SQL test data for your dev projects.
Calculate your future wealth with our advanced ROI tool.
Manage your exam schedule with our free online Exam Timetable Planner.
Free multi-currency savings tracker with smart forecasting.
Master your typing skills with our free Sinhala and English typing speed test.
Optimize and test your website's meta titles, descriptions, and rich snippet schemas in real-time.
Latest PAYE/APIT calculations based on the 2025/2026 Amendment Act.
Calculate monthly installments (EMI) and interest for personal or housing loans.
Detailed breakdown of EPF, ETF, and net take-home pay.
A smart finance dashboard to track income, expenses, and savings.
Create professional Sri Lankan tax invoices in English, Sinhala, and Tamil.
Generate professional digital business cards in seconds. Support for PNG, PDF, vCard, and QR.
Calculate employee gratuity instantly based on salary variables and years of service.
Create QR codes online for localized text formats, WhatsApp linkages, WiFi and web links.
Why thousands of developers and professionals trust DevToolsHub every single day.
Traditional utilities waste time processing your requests on remote servers. DevToolsHub compiles and processes data execution natively right inside your web browser engine.
We operate on a zero-trust infrastructure architecture. Your sensitive tax declarations, salary breakdowns, and database mock files stay confined directly within your sandbox memory.
No more guessing variations or relying on outdated calculations. Our computational systems are regularly audited against Inland Revenue Department (IRD) directives and corporate employment acts.