An one-person indie lab crafting Windows apps, web tools, and developer utilities. Built by Pavel Osadchuk — senior .NET engineer by day, indie hacker by night.
Shipping practical yet useless software with clean UX, solid engineering, and a bias for self-hosting and simplicity.
Products
netdiag.dev
2026
Website Connectivity Diagnostics API. A simple API for DNS, TCP, TLS, and HTTPS health checks built for developers.
AnyMCP.io
2025
A catalog of single-file MCP servers for .NET 10 (Preview 4+). Works with any LLM that supports local MCP connections.
AI Token Price Calculator
2025
Calculate and compare token costs across AI providers. Estimate pricing for your LLM API usage.
OpenPost
2025
The free open-source tool for easy, self-hosted email campaigns.
htmx-pal
2024
htmx Code Completion and IntelliSense extension for Visual Studio 2019 and 2022.
AI DEV Assess
2024
AI-powered tool that generates role-specific interview questions and assessment matrixes for evaluating software developers.
CreateHTMLForm
2023
Easily create and customize interactive HTML forms.
CreateOnlineMenu
2023
QR Digital Menu for Restaurants.
Windows Apps
Wizible
2026
Windows Widget that displays your website analytics directly in the Widgets panel. Monitor traffic, track goals, and spot trends.
Fizzy WinForms
2025
A Windows Forms app that wraps a Docker-containerized Rails application, providing a native desktop experience for the Fizzy web app.
TextBeam
2025 · $6.99
From Screenshot to Notes in 17 Seconds. Turn screenshots into clean, searchable notes — privately, offline.
API.chat
2025
One Windows app that turns every API key you own into a private, super-chat.
Blog Posts
Building a Powerful MCP Server in .NET
Aug 2025 · .NET / AI
WinUI 3: How to Set Minimum Window Size
Jan 2025 · Desktop
Extending Visual Studio 2022
Sep 2024 · IDE
ASP.NET Forms Validation and HTMX
Jun 2024 · Web
HTMX + .NET
Aug 2023 · Web
Let's Build a Countdown Timer with Blazor
Jun 2022 · Blazor
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