I'm Muthukumar, but you can call me Mak. Let's code something amazing!
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Projects & Open Source

A selection of things I've built: web apps, Chrome extensions, AI tools, and open-source .NET libraries and templates.

Quiline screenshot
Featured

Quiline

A free, private Markdown editor that runs in your browser. Live preview, a visual table builder, paste tables straight from Excel, and offline support with no account needed.

MarkdownPWAIndexedDBOffline-first
WaveFlare screenshot
Featured

WaveFlare

A Chrome extension that turns any tab into a live audio light show, with audio-reactive frequency bars over YouTube, Spotify, and more. Everything runs locally on your device.

Chrome ExtensionManifest V3Web Audio APICanvas
What Happened This Day screenshot

What Happened This Day

A Chrome extension that shows historical events and a famous birthday for today's date in a vintage almanac-style popup, cached locally so it opens instantly.

Chrome ExtensionJavaScriptHTMLCSS
~/projects/nselens

NSELens

A Claude skill for Indian stock research. It screens Nifty 100 stocks, verifies live prices from named sources, and builds GTT setups with confidence scoring.

Claude SkillAIPrompt EngineeringStock Market
AdminLTE for ASP.NET MVC screenshot

AdminLTE for ASP.NET MVC

The free AdminLTE dashboard template ported to ASP.NET MVC, with OWIN token authentication, Autofac, Entity Framework 6, and the repository pattern.

ASP.NET MVCEntity FrameworkAutofacAdminLTE
~/projects/totp-clean-arch

TotpCleanArch

A .NET 8 Web API template with TOTP multi-factor login, built on Clean Architecture with EF Core, PostgreSQL, Serilog, Docker, and .NET Aspire.

.NET 8.NET AspirePostgreSQLMFA
~/projects/core-webapi-boilerplate

Core Web API Boilerplate

A .NET 6 Web API starter with an n-layered architecture, JWT authentication, Swagger, AutoMapper, Serilog, and EF Core using the repository pattern.

ASP.NET CoreJWTSwaggerEF Core
~/projects/file-validator

FileValidator

A NuGet library that adds extension methods to FileInfo and IFormFile for validating uploaded files by size, extension, and MIME type.

C#.NETNuGetASP.NET Core
Electron Music Visualizer screenshot

Electron Music Visualizer

A minimal desktop music visualizer built with Electron. Audio-reactive frequency bars float over your desktop in a transparent window, with bar size and colours set in a JSON file.

ElectronJavaScriptWeb Audio APIDesktop App
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