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LEMON WEB-APPS
Preparing Applications
BMI Calculator
This BMI Calculator is an interactive tool for determining Body Mass Index (BMI) based on weight and height. It features gender selection, smooth sliders, and a flip animation for a seamless experience. BMI is categorized into Underweight, Healthy, Overweight, and Obesity classes, each with color-coded backgrounds for easy interpretation. Personalized descriptions provide insights to help users understand their weight status and make informed health decisions. Whether tracking progress or checking BMI, this tool is simple, accurate, and engaging.
Background Remover
AI Background Remover is a web-based tool that allows users to quickly and effortlessly remove backgrounds from images using AI-powered processing via the Remove.bg API. Simply upload an image, and within seconds, receive a high-quality transparent background version ready for download. The app features a modern, user-friendly interface with real-time progress tracking, an auto-cleaning system to manage uploaded files, and a seamless restart option. Perfect for designers, marketers, and anyone needing quick background removal!
Calculate System Uptime
The uptime calculator is a simple yet powerful tool designed to streamline SLA reporting by calculating precise uptime percentages based on total downtime in days, hours, and minutes. With its intuitive design, detailed breakdowns, and built-in industry benchmarks, it provides actionable insights into system reliability and performance. Whether for internal analysis or stakeholder presentations, this calculator ensures accurate, error-free metrics, making it an essential resource for anyone managing service-level agreements and striving to meet or exceed uptime standards.
Cloud Drive - Lemon Cloud
Running and based on the popular ownCloud open source web applications, file sync and share community project, Lemon Cloud provides greater control of data — combining greater flexibility, openness and extensibility with on premise servers and storage.
DICOM Viewer
DICOM Viewer is a simple web-based application designed to help users easily view and convert DICOM images into standard JPG format. By allowing users to upload DICOM files directly from their devices, this tool provides a convenient way for patients to access medical images they have obtained from hospitals, whether stored on CDs, USB drives, or other media. It is particularly useful for individuals who wish to save and keep a personal copy of their medical images for easier viewing without needing specialized hospital software.
Domain & IP Address Checker
This Domain IP Checker helps users quickly verify website and server details — making it easier to identify who owns a domain, where it’s hosted, and how its DNS is configured. Whether you’re troubleshooting email issues, checking DNS propagation, or investigating suspicious domains, the tool provides instant WHOIS data, DNS records (A, MX, TXT), and ownership insights in one place. With its clean design, fade-in results, and restart option, it’s built for anyone who values clarity and speed when performing network or website lookups.
DR. Kiddo
Doctor Kiddo is a lightweight, kid-focused symptom checker that guides caregivers through a simple, step-by-step flow to explore possible causes for common pediatric complaints. You pick a main symptom (e.g., “Abdominal pain in children” or “Constipation in children”), then answer short, structured questions. Behind the scenes, the app maps each answer to standardized factor keys and compares them against a scoring table for many conditions. Results are shown in a clean accordion view with the top matches expanded, your matching symptoms highlighted, and an “About this condition” section that supports basic HTML for clear, readable guidance—all strictly educational, not a diagnosis.
Under the hood, most content is data-driven via CSV files, so you can update questions, mandatory flags, factors, and scoring without touching code. The interface is tuned for phones—sticky action buttons, smooth in-card scrolling, and single-row controls—while accessibility details (ARIA roles, keyboard handling) help it stay usable. There’s also a quick link to open Google Maps for “nearest pediatricians clinic,” encouraging timely, real-world care when needed. The overall goal: a fast, friendly tool that helps families organize observations, converse better with clinicians, and make safer choices for kids.
Drug Price Checker
The Malaysian Drug Price Checker System—developed to bridge the transparency gap in Malaysia’s healthcare pricing—serves as a reliable web-based tool for patients, pharmacists, and healthcare professionals. Users can search by generic or brand name to instantly retrieve comprehensive drug pricing details, such as product registration number, packaging descriptions, unit SKUs, quantity, suggested retail price, retail price per pack, and the year the price was updated. By sourcing data directly from the Pharmaceutical Services Programme under the Ministry of Health Malaysia, the system ensures users access accurate and up-to-date official pricing.
Beyond being a lookup tool, the system enhances affordability and informed decision-making by making it easy to compare medicine costs and identify cheaper generic alternatives, thus reducing the risk of overpayment, particularly for long-term or chronic treatments. Its user-friendly interface—with autocompletion after typing just three letters, responsive design for various devices, and clean table results—makes it highly accessible. More than a search engine, this system symbolizes a broader push for transparency, accountability, and trust within Malaysia’s healthcare sector
Email Security Checker
The Email Security Checker (SPF, DKIM & DMARC) by LEMON WEB SOLUTIONS is a powerful yet easy-to-use web app designed to help users instantly analyze their domain’s email authentication setup. By checking DNS records for SPF, DKIM, and DMARC, the tool identifies weaknesses that could expose your domain to spoofing or deliverability issues. It presents results in a clean, interactive interface complete with detailed breakdowns and actionable recommendations, making it ideal for IT teams, administrators, or anyone who wants to secure their outgoing email communications and strengthen domain reputation with just a few clicks.
FACE-APP
FACE-APP is an innovative facial expression analysis tool designed to interpret and quantify emotions with precision. Leveraging the advanced capabilities of the Google Cloud Vision API, the app identifies and measures key emotional states, including Happiness, Anger, Sorrow, Surprise, and Confidence, by analyzing facial features in real-time or from uploaded images.
The app provides users with detailed insights into their emotional expressions, making it a versatile solution for various applications. Whether you’re looking to enhance self-awareness, improve communication, gather customer feedback, or simply enjoy exploring emotions in a fun and engaging way, LEMON FACE-APP has you covered.
Guitar Tabber
The GuitarTabber Player is a web application designed for guitar enthusiasts to explore a vast collection of guitar tabs and play them directly within their browser. The app provides an intuitive interface where users can search for their favorite songs, view detailed tablature, and hear how each tab sounds using an integrated playback feature powered by AlphaTab JS. Whether you're a beginner looking to learn or an experienced guitarist refining your skills, the GuitarTab Player offers a seamless experience with customizable playback speed, highlighting features, and support for multiple tunings. Its responsive design ensures compatibility across devices, making it easy to practice on the go.
HL7 DECODER
The HL7 Decoder app is a simple yet powerful tool designed to make interpreting raw HL7 v2.x messages effortless for healthcare professionals, IT analysts, integrators, and anyone dealing with medical data exchange. Instead of struggling with long, cryptic HL7 strings, users can instantly paste a message and view it transformed into beautifully organized, human-readable segments presented in a modern, intuitive interface. Each segment is grouped, explained, and broken down into fields and components, helping users quickly troubleshoot interfaces, validate message structures, analyze lab results, or understand system-to-system communication. Whether you're working in hospitals, labs, EMR development, or integration testing, the HL7 Decoder delivers clarity, speed, and productivity—turning complex healthcare data into something anyone can understand.
ICD Coder
With its blend of intelligence and simplicity, ICD Coder transforms the way healthcare professionals handle diagnosis coding. Whether you’re documenting in English, Malay, or a mix of clinical shorthand, the app intuitively understands your input and delivers accurate, WHO-verified ICD-10 or ICD-11 codes in seconds. It’s designed to save time, reduce errors, and bring clarity to the coding process through a modern interface and AI-powered understanding.
Beyond convenience, ICD Coder also empowers users to learn—each result is accompanied by clean explanations and verified references, helping medical staff and students strengthen their diagnostic accuracy over time. It’s more than just a tool; it’s your personal medical coding assistant that bridges human language with precise global standards.
ICO Converter
ICO Converter makes it effortless to turn any image into a clean, professional website icon without needing design skills or extra software. Just upload a PNG, JPG, or GIF, crop it perfectly in the built-in square preview, choose the sizes and color depth you want, and download a ready-to-use ICO file containing multiple icon resolutions in one shot. Whether you’re refreshing your brand, polishing a personal site, or testing different favicon designs, ICO Converter gives you fast, precise results in a modern, mobile-friendly interface that feels simple enough for beginners yet flexible enough for power users.
Impossible Quiz
The Impossible Quiz is a deceptively simple yet hilariously frustrating online math challenge designed to test your focus, reflexes, and patience. What starts as a basic arithmetic question quickly turns into an unexpected experience that only 1% of over 4,000 participants have managed to complete. It’s a light-hearted way to gauge your mental sharpness, with a twist that catches most people off guard. Whether you're a math whiz or just looking for a fun brain teaser, this quiz dares you to try — but don’t be surprised if it messes with your confidence along the way..
Insurance Gap Protection Calculator
In 2017, I developed the Insurance Gap Protection Calculator at the request of industry associations MTA and LIAM, under the guidance of Bank Negara Malaysia (BNM). The system was designed as a consumer-friendly platform to help individuals calculate the amount of insurance or takaful coverage they would need to achieve their financial protection goals. Beyond determining protection gaps, the calculator also guided users in estimating how much coverage they could realistically afford, striking a balance between adequate protection and financial capability. Simplicity and accuracy were central to its design, ensuring that people from all walks of life could confidently use the tool and rely on its results.
The initiative played an important role in raising financial awareness by making complex calculations accessible and easy to understand. With inputs such as income, dependents, and liabilities, the calculator generated clear, actionable projections that empowered individuals to plan for their future with greater confidence. This project reflected ISM’s commitment to public service and innovation, positioning the calculator as a valuable resource for personal financial planning while supporting Malaysia’s broader goals of financial literacy and protection.
Just Me
Just Me is a simple, privacy-first photo tool that lets you shine in group pictures without exposing everyone else. Just upload a photo, pick which face is yours, and choose what happens to the rest of the image: blur and darken the background, crop the shot to just your head, or hide other people behind lemons, smileys, or bold “CENSORED” bars. It all runs automatically in a couple of clicks, giving you shareable, social-media-ready photos that keep your friends, family, and colleagues out of the spotlight while you stay perfectly in focus.
Malaysian Highway CCTV
The Malaysian Highway CCTV Feed offers real-time access to major highways, enabling users to monitor traffic and road conditions. With a user-friendly interface, it allows quick searches or browsing of highway routes. Featuring live feeds from Lembaga Lebuhraya Malaysia (LLM), it provides trusted, up-to-date information to help users make informed travel decisions.
Malaysian Ringgit Inflation Calculator
The Malaysian Ringgit Inflation Calculator is a handy web-based tool designed to help users understand the real value of money over time in Malaysia. By factoring in historical inflation rates, this calculator allows users to determine how the purchasing power of the Ringgit has changed from one year to another. Whether you're comparing past salaries, assessing the impact of inflation on savings, or simply curious about how much a given amount from a previous year would be worth today, this tool provides quick and accurate insights. With its user-friendly interface and reliable data, the Malaysian Ringgit Inflation Calculator is an essential resource for financial analysis, budgeting, and economic research.
Monitor FPS Tester
The Monitor FPS Tester is a simple, interactive tool that helps you instantly check your screen’s true refresh rate in a fun and visually engaging way. Instead of plain numbers, it uses three 3D-spinning lemons—one at 24 FPS, one at 60 FPS, and one that rotates in real time based on your actual monitor performance—making it easy for anyone to see and compare smoothness at a glance. Just click the Start button, watch the animations come to life, and within seconds you’ll know whether your display is running at 60Hz, 75Hz, 120Hz, 144Hz, or beyond. It’s fast, accurate, and designed with a playful Lemon-Web touch to make hardware testing feel refreshing instead of boring.
PDF to WORD Converter
The PDF to Word Converter is a simple, free online tool I built to help users convert PDF files into editable Word documents quickly and securely. It was developed in response to frequent requests from colleagues who needed an easy way to make changes to PDF content. The application is mobile-friendly, requires no sign-up, and uses a trusted third-party API to ensure accurate conversion. Uploaded files are handled securely, encrypted during processing, and automatically deleted afterward to maintain privacy and save server space. While it's currently free with a monthly limit of 800 conversions, there's room to scale if usage grows alongside my website.
Port Scanner
The Port Scanner is a fast, reliable, and easy-to-use web tool built to help you uncover open ports on any IP address or domain. Whether you’re testing your own network for security gaps or simply exploring server connectivity, this app gives you instant results with just a few clicks. Designed with a clean, responsive interface, it displays scan progress and outcomes in real time—no complicated setup or technical commands needed. An integrated INFO panel also explains common port usages, making it easy for beginners to understand what each result means. Perfect for IT enthusiasts, students, or professionals, the Port Scanner combines speed, simplicity, and accuracy to make network diagnostics effortless and accessible to everyone.
QuickBASIC
Quick Basic 4.5 was a gateway into programming for many in the late ‘80s and ‘90s, offering a simple yet powerful environment to write, test, and compile code before the era of modern GUI-based development. Whether you’re revisiting it for nostalgia or testing your classic coding skills, the experience of typing commands in a blue DOS screen still carries a unique charm. To bring back those memories, I’ve set up a Quick Basic 4.5 online emulator where you can run old-school BAS programs, experiment with BASIC syntax, and relive the early days of coding. Try it out here.
QR-CODER
QR-CODER is a fast, user-friendly, and lightweight web app that makes generating QR codes effortless. Built for simplicity and efficiency, it lets you instantly convert text, URLs, contact info, or any custom data into a scannable QR code with just a few clicks. The clean, modern interface ensures a smooth experience across all devices, while the real-time preview helps you see your code before saving or sharing it. Whether you’re creating QR codes for business cards, product labels, event invitations, or quick file sharing, QR-CODER delivers speed, clarity, and convenience—making it the perfect companion for anyone who values time and precision.
QR-NameCard
This app is a QR Name Card Generator that lets users create a professional digital business card right from their browser. By filling in details like full name, company, title, phone numbers, email, website, and address, users can instantly generate both a scannable vCard QR code and a beautifully styled digital name card that can be saved and shared. The app also supports uploading a profile photo, which is automatically cropped and processed, with all images and name cards stored neatly on the server for permanent links. Designed to be mobile-friendly yet polished on desktop, it ensures fields are validated (like requiring a full name), hides unused rows for clean layouts, and even provides dual QR outputs—one linking to the digital card and one embedding contact info directly—making it a simple, all-in-one tool for modern networking.
Salary PCB Calculator
The Malaysian Salary Tax Deduction Calculator for 2025 is a user-friendly web application designed to help individuals and businesses accurately calculate their net monthly earnings by accounting for deductions such as PCB (Potongan Cukai Bulanan), SOCSO, EIS, and EPF. By inputting their gross salary, users can quickly obtain a breakdown of deductions and their final take-home pay, ensuring compliance with the latest government regulations. The app is accessible on any device, saving time and enhancing financial planning by providing accurate and up-to-date information.
WEB Radio
WEB-RADIO is a popular online platform offering Malaysian radio streaming, providing listeners with access to a wide range of local radio stations. From news and talk shows to music and entertainment, LEMON WEB-RADIO connects audiences to the vibrant Malaysian radio scene, allowing them to enjoy live broadcasts from anywhere.
WEB TV
The platform will initially feature a wide range of local channels, including RTM1, RTM2, TV3, OKEYTV, RTM Sukan, RTM Berita, TV7, and RTM Parliament. These channels were selected to ensure a comprehensive representation of Malaysian entertainment, news, sports, and parliamentary broadcasts. By focusing on local channels, the platform will celebrate and promote Malaysian culture and content.
Windows 3.11
The Windows 3.11 Web-Based Edition lets you relive the golden age of computing directly in your browser, offering a fully functional recreation of Microsoft’s classic 1993 operating system without any installation required. Its nostalgic interface, complete with the familiar Program Manager and vintage applications, delivers a fun, interactive experience that blends retro charm with modern convenience—perfect for anyone who wants to explore or reminisce about the early days of Windows in an instant, hassle-free way.
Windows 95
The Windows 95 Web-Based Edition brings back the groundbreaking desktop experience that defined an entire era of personal computing—now accessible instantly through your browser. It faithfully recreates the familiar Start Menu, taskbar, and windowed interface that once revolutionized how users interacted with their PCs. Whether you’re a nostalgic tech enthusiast or simply curious about where modern Windows began, this browser-based revival lets you explore the iconic system effortlessly, offering a smooth, interactive, and educational glimpse into the roots of today’s operating systems—no installation, just pure retro computing magic.
Windows 98
The Windows 98 SE Plus Web Edition delivers a beautifully nostalgic return to one of the most polished and beloved versions of classic Windows—now recreated directly inside your browser with zero installation needed. It brings back the refined Start Menu, smoother interface, enhanced system tools, and charming aesthetics that made Windows 98 Second Edition a standout upgrade in the late-90s era. Whether you're reliving the golden days of dial-up computing or discovering this iconic OS for the first time, this interactive browser-based revival offers a seamless, lightweight, and enjoyable way to experience the improved stability, performance, and personality that defined Windows 98 SE Plus—all from the comfort of modern web technology.
Light Apps. Heavy Performance. No Downloads.
Launch practical, lightweight tools right in your browser—no installs, no fuss. Our apps are built for speed, privacy, and cross-device use: instant start, clean interfaces, reliable file handling, and seamless integrations when you need them.
Works on Any Device
Fast & Lightweight
Clean, Usable UI
API Integrations (when needed)
Self/Private Hosting Ready
