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Production-Ready Tools

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PasteDownloader

PasteDownloader

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

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Google AdSense Checker

Google AdSense Checker

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

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IP Tracker - What is my IP?

IP Tracker - What is my IP?

Instantly find out your public IP address, location, ISP, ASN, and map coordinates. Track any IPv4 or IPv6 address for free.

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Latest Engineering Articles

pythonMarch 31, 2026
How to enforce type hinting in Python: Static vs Runtime Strategies

Python's type hints are just suggestions by default. To actually enforce them, you need to choose between static analysis (like MyPy) or runtime validation (like Pydantic). This guide breaks down the pros, cons, and best use cases for each strategy in 2026.

pythonMarch 31, 2026
How to Fix the 'ModuleNotFoundError: No module named pre_commit' Error

A step-by-step guide to resolving the common `ModuleNotFoundError` for the `pre_commit` module. Learn how to identify the root cause and apply the right fix to get your Git hooks working again.

gitMarch 31, 2026
How to read and resolve Git merge conflicts without losing your mind?

How to read and resolve Git merge conflicts, step by step. Learn how to decode the conflict markers, make informed decisions, and get back to coding without stress.

Serhii Hrekov

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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.