Developer Tools
Catastrophic Backtracking: Finding the Regex That Freezes Your Service
One crafted input field can pin a CPU at 100 percent. Here is how to recognize the regex shapes that cause it and rewrite them.
Blog
Long-form guides and technical deep-dives for people who like to check things themselves, written from hands-on experience with the tools on this site.
Security & Privacy
Sanitizing Kubernetes and Terraform Manifests Before Committing to Version Control
Scan Kubernetes and Terraform configs for secrets before committing. Detect hardcoded credentials and security smells, and generate sanitized manifests.
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Guides & How-Tos
Why Passport and Visa Photo Apps Reject Your File
An exact-size photo still comes back rejected. Here are the automated checks a portal runs first, and how to measure them yourself in a browser tab.
Guides & How-Tos
Prepare a USCIS Filing Packet as Clean PDFs Without Uploading a Single Page
Assemble a USCIS filing packet with current form editions, clean scans, ordered merges, and portal-ready file sizes, all without uploading a page.
Guides & How-Tos
After IndexNow: 6 Launch Channels Indie Founders Skip, and How to Hit Them in a Weekend
IndexNow pings every URL, then launch week goes silent. Here are six distribution channels solo founders skip, with weekend time budgets for each.
Developer Tools
Debugging API Responses Locally in the Browser: A JSON Formatter Workflow That Never Sends Your Payload
A three-minute local debugging routine for API responses: format, validate, locate the broken line, browse large payloads as a tree, and minify.
Developer Tools
Running an LLM in Your Browser: Verifying WebGPU, Model Hashes, and Local Inference Without a Server
Verify a local browser LLM before you trust it: check WebGPU support, hash the model file, and audit what your browser leaks while it runs.
Security & Privacy
Post-Quantum TLS in 2026: What a Certificate Inspector Can and Cannot Tell You Yet
Half the web negotiates post-quantum handshakes while certificates stay classical. Run a five-minute local audit to see where your domains stand.
Security & Privacy
Where Your Text Goes When You Check It for AI: Six Detectors Compared
Six AI detectors compared on signup, free caps, price, and where your text is actually processed, plus how to read a 99% accuracy claim.
Audio & Acoustics
Testing a USB Audio Interface or DAC at Home: Browser Checks for Noise Floor, Loopback, and Latency
Test a USB audio interface or DAC noise floor, loopback quality, clipping headroom, and round-trip latency in your browser before the return window closes.
Security & Privacy
Verifying Your FIDO2 Hardware Security Key: What a Browser Can Confirm
Verify your FIDO2 key is genuine with a browser-only routine: read its attestation chain, check fingerprint leaks, and test backup password strength.
Security & Privacy
Privacy-First Smart Home Cameras and Doorbells: Local Processing vs. Cloud, and What To Check
Test whether a smart home camera or doorbell really keeps footage local, from a firewall check to on-device AI and open protocols, then choose.
Hardware & Peripherals
How to Tell If a microSD Card or External SSD Is Fake or Slower Than Advertised
Test a microSD card or external SSD for fake capacity and silent corruption, read the speed ratings that matter, and choose storage you can trust.
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