Convert Unix timestamps to human-readable dates and dates to epoch time instantly. Supports seconds and milliseconds, multiple timezones, and ISO 8601 format. Free, no signup — everything runs in your browser. Timestamp → Date Convert to Date Date → Timestamp … Read more →
Security, DevOps & Trading Tech — Practical Guides
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Free Markdown Table Generator Online — Create Tables Instantly
Generate Markdown tables visually with this free online tool. Add rows and columns, import from CSV or Excel, and export clean Markdown table syntax for GitHub, GitLab, Notion, and documentation. No signup required — runs entirely in your browser. + Row + Column … Read more →
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I Tested 4 Free Stock Market APIs — Here’s Which One Actually Works for Side Projects
Last month I needed real-time-ish stock quotes for a personal trading dashboard. Nothing fancy — just current prices, daily OHLCV, and maybe some basic fundamentals. I figured this would take an afternoon. It took a week, because every “free” market data API has a different definition of “free.” I tested Polygon.io,… Read more →
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I Ran Trivy on Every Container in My Homelab — The Results Were Embarrassing
Last weekend I had a quiet Saturday morning and made the mistake of running trivy image against every container in my homelab. I have 47 containers running on TrueNAS. I expected maybe a handful of medium-severity CVEs. What I got was 312 critical vulnerabilities across 23 containers. Here’s what I found,… Read more →
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I Replaced All My Passwords with a YubiKey — Here’s What Actually Happened
Last month I locked myself out of my GitHub account. Again. My TOTP app had synced to a new phone but silently dropped three seeds during the transfer. That was the third time in two years I’d lost access to something important because of software-based 2FA. I ordered a YubiKey… Read more →
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Build a Portfolio Rebalancing Bot with Python and Alpaca API
Last month I noticed my portfolio had drifted 12% off target allocation. Tech was at 45% instead of 30%, bonds had dropped to 8%. I’d been meaning to rebalance for weeks but kept putting it off. So I spent a Saturday afternoon writing a Python script that does it automatically… Read more →
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How to Batch Compress Images Online (Free Tools Compared)
Need to compress dozens of images at once? Whether you’re optimizing a website, preparing product photos, or cleaning up your photo library, batch image compression saves hours of manual work. In this guide, we compare the best free tools for batch compressing images online — with a focus on speed, privacy,… Read more →
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How to Compress Images Without Uploading to a Server
Most image compression tools require you to upload your photos to a remote server. TinyPNG, iLoveIMG, Compressor.io — they all work the same way: your image leaves your device, gets processed on someone else’s computer, and comes back smaller. But what if you don’t want your images leaving your browser? What… Read more →
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Stop Pasting Sensitive Data Into Online Developer Tools
Last month I watched a coworker paste a JWT token into an online base64 decoder. The token contained user emails, internal API endpoints, and an expiration timestamp for a production service. He got his decoded output. The website got a copy of everything. This happens thousands of times a day across… Read more →
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How to Compress Images Without Uploading Them (Privacy-First Guide)
Every time you use an online image compressor, your photos travel to someone else’s server. They get processed, maybe cached, maybe logged — and you have no idea what happens after that. For most images, that’s fine. But if you’re compressing screenshots with sensitive data, client deliverables, medical images, or personal… Read more →