QuickShrink
Compress and convert images before publishing or sharing them.
Works with: JPEG, PNG, and WebP. Free: 20 compressions per day. Pro: $3.99 once for batch, format, resize, preset, and ZIP features.
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HashForge
Generate and compare hashes for text or files.
Works with: MD5, SHA-1, SHA-256, SHA-384, SHA-512, HMAC, comparison, hex, and Base64. Files load fully into memory.
Open toolRegexLab
Test and debug regular expressions against sample text.
Works with: JavaScript regex, flags g/i/m/s/u/d, replacement, capture groups, test cases, and a pattern library.
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Security
Harden applications and infrastructure without losing the recovery path.
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Build safer delivery pipelines with practical, runnable controls.
Open guideHomelab
Plan storage, networking, access, and recovery as one system.
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Selected field notes
SSH Server Hardening in 2026: A Version-Aware sshd_config Guide
A version-aware rollout that keeps a tested login and recovery route open.
Read field noteBatch Image Compression in CI with QuickShrink CLI: WebP, AVIF, and Metadata Stripping
A reproducible image-optimization workflow for local development and CI.
Read field noteWhat SHA-256 Checksums Prove — Verify Files with HashForge
A clear boundary between integrity checks, authenticity, and trust.
Read field noteRecently published
Latest articles
SSH Server Hardening in 2026: A Version-Aware sshd_config Guide
A version-aware OpenSSH hardening guide covering key-only authentication, modern crypto defaults, real idle timeouts, key audits, and safe rollout.
Browser Fingerprinting Defenses That Actually Work in 2026
Field notes on browser fingerprinting: how it works, which defenses hold up under testing, and a practical daily-use setup that actually reduces your identifiability.
yfinance 1.6.0: Practical Python Stock Data, Live Streaming, and Equity Screening
Field notes on yfinance 1.6.0: historical data fetching, live WebSocket streaming, EquityQuery screening, and practical rate-limit handling for personal finance projects.
Best NVMe SSDs for Docker Builds: Capacity, Endurance, and Cooling
Choose Docker build storage using measured capacity, endurance, cooling, and platform compatibility instead of one peak-speed number.
Batch Image Compression in CI with QuickShrink CLI: WebP, AVIF, and Metadata Stripping
A source-checked guide to batch image compression with QuickShrink CLI, including WebP and AVIF output, resizing, metadata, and CI usage.
Base64 Is Not Encryption: How I Debug Base64 Data Without Uploading It Anywhere
I was reviewing a pull request last week when I spotted it: a developer had base64-encoded a JWT payload to "hide" the user ID before logging it. The…
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