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Production-Ready Tools

Tools Used by Developers Worldwide

JWT Secret Key Generator

JWT Secret Key Generator

Generate cryptographically secure secret keys for JWT authentication with one-click formatting for .env files.

Strong Password Generator

Strong Password Generator

A secure microservice for generating highly random and strong passwords with full control over character sets and length.

Barcode Generator

Barcode Generator

Generate Barcodes images instantly using our interactive Bar code generator powered by a dedicated API backend. Enter text or a URL to see your Bar code created in real time! Download the generated Bar code as a PNG image.

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Latest Engineering Articles

gitFebruary 16, 2026
SOLVED - fatal: Not possible to fast-forward, aborting

This error occurs when your local Git history has diverged from the remote. Here are 5 ways to fix it, ranked from "Standard Practice" to "Nuclear Option."

pythonFebruary 15, 2026
Reasons to use dataclass over pydantic basemodel

While Pydantic is the industry standard for external data (APIs, JSON parsing), Python's built-in dataclasses are often the better choice for internal data. Here are 4 reasons why.

pythonDecember 18, 2025
Generating Stylized QR Art with Stable Diffusion & ControlNet

Learn how to create stunning, scannable QR codes using AI image generation models like Stable Diffusion combined with ControlNet for structure preservation.

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.