Last month I pulled a random Node.js base image for a side project and ran Trivy against it out of curiosity. 47 CVEs. Twelve of them critical. The image had been on Docker Hub for two years with 10M+ pulls. Nobody checks these things. If you’re running containers — homelab, production,… Read more →
Security, DevOps & Trading Tech — Practical Guides
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How to Convert Images to WebP Online (Free, No Upload Required)
WebP is the modern image format that delivers 25-35% smaller files than JPEG and PNG with no visible quality loss. Google created it, Chrome and Safari support it, and if you’re building for the web in 2026, you should be using it. But how do you convert your existing images to… Read more →
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How to Compress Images Online for Free (Without Losing Quality)
Need to compress images for your website, email, or social media? Large image files slow down page loads, eat up storage, and frustrate users. The good news: you can dramatically reduce file sizes without visible quality loss — and you don’t need to install anything. In this guide, we’ll cover the… Read more →
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Dangerzone: Open-Source Document Sanitization That Actually Works
Last month I received a PDF from a vendor that triggered three different AV signatures. The file was “clean” — just a contract — but it had embedded JavaScript, an auto-open action, and metadata pointing to an internal network share. The vendor had no idea. This is the reality of… Read more →
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JavaScript Fingerprinting: Advanced Troubleshooting Tips
TL;DR: JavaScript fingerprinting is a powerful tool for identifying users and securing web applications, but it comes with significant security and privacy challenges. This article explores how to implement a production-ready fingerprinting solution in Kubernetes, mitigate risks like spoofing, and ensure compliance with privacy regulations like GDPR. We’ll also cover… Read more →
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Debugging & Optimizing JavaScript Fingerprinting
TL;DR: JavaScript fingerprinting is a powerful tool for identifying users and securing web applications, but it comes with significant security and privacy challenges. This article explores how to implement fingerprinting securely, integrate it into Kubernetes workflows, and monitor its performance. By following production-tested practices, you can avoid common pitfalls and… Read more →
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Free JWT Decoder Online — Decode and Inspect JSON Web Tokens
Need to inspect a JWT token? This free online JWT decoder lets you decode JSON Web Tokens instantly, showing the header, payload, and expiration status — all without sending your token to any server. How to Use This JWT Decoder Paste your JWT token into the input field Click Decode JWT to see… Read more →
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Free HTML Encoder & Decoder — Escape Instantly
Need to escape HTML characters for safe display? This free online HTML entity encoder converts special characters like <, >, &, and quotes into their HTML entity equivalents — or decodes entities back to text. Runs entirely in your browser. How to Use This HTML Entity Encoder Paste your HTML or text… Read more →
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Free Online Lorem Ipsum Generator — Instant Placeholder Text
Need placeholder text for your mockups? This free Lorem Ipsum generator creates dummy text in paragraphs, sentences, or words — instantly in your browser with no signup required. How to Use This Lorem Ipsum Generator Choose how many paragraphs, sentences, or words to generate Optionally check “Wrap in <p> tags” for HTML-ready output Click… Read more →
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Free Stock Price Alerts: Built with Finnhub in 30 Minutes
Last month I missed a 12% move on AMD because I was heads-down in a deploy. My broker’s mobile alerts? Delayed by 3 minutes. Robinhood’s push notifications? Unreliable on Android. I decided to build my own alert system that hits me on Telegram the instant a price crosses my threshold. The… Read more →