Skip to main content

hrekov logoBuild Better Software. Practical guides, APIs, and tools that solve real-world problems.

Production-Ready Tools

Tools Used by Developers Worldwide

Most Popular
PasteDownloader

PasteDownloader

A simple tool to download images directly from your clipboard by pasting them on the page.

Trending
Google AdSense Checker

Google AdSense Checker

Enter a website URL to check for AdSense ownership verification, scripts, and ad units.

Newest Release
Free Text to PDF Converter Online

Free Text to PDF Converter Online

Instantly convert your text into a PDF file completely free, safely within your browser. No sign-up required and your data never leaves your device.

Get Early Access to New Tools

Be the first to try new APIs and applications. No noise. Only meaningful releases and practical engineering insights.

Latest Engineering Articles

pythonApril 2, 2026
Pyproject.toml: The Ultimate Guide to Python Packaging in 2026

Discover how to use `pyproject.toml` to create, manage, and distribute Python packages in 2026. This comprehensive guide covers everything from build systems to dependency management and best practices for modern Python development.

pythonApril 2, 2026
The `__main__.py` File: The Front Door to Your Python Package

Learn how to use the `__main__.py` file to make your Python packages executable. This guide covers the purpose of `__main__.py`, how it differs from `__init__.py`, and best practices for creating command-line interfaces in 2026.

pythonApril 2, 2026
How to Use `__init__.py` Like a Pro in 2026: Best Practices for Python Packages

Master the art of using `__init__.py` to create clean, efficient Python packages. Learn the best practices for package initialization, API simplification, and more in this comprehensive guide.

Serhii Hrekov

About

I build backend systems and practical tools used by developers and businesses. This site is a collection of my production-ready APIs, open-source projects, engineering insights and practical guides that solve real-world problems.