Developer Tools
UUID v4 or v7 as a Primary Key: What Changes in Your Index, Your Logs, and Your URLs
The UUID version digit decides how your index absorbs writes, what a public identifier reveals, and how keys behave in logs and exports.
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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Audio & Acoustics
Testing a New Soundbar with Browser Tools: Frequency Response, SPL, and Lip-Sync Checks You Can Run at Home
Use three free browser tools to measure frequency response, SPL, and A/V sync on your soundbar. No lab gear, no uploads.
Buying Guides
Power Bank and GaN Charger Capacity Claims: How to Verify the mAh-to-Wh Math Yourself
Battery listings show mAh, not watt-hours. Learn to convert, spot inflated claims, and pick a power bank that delivers.
Buying Guides
Portable Second Monitors: How to Verify a Panel Before Your Return Window Closes
A browser-only checklist for testing dead pixels, backlight bleed, uniformity, USB-C connectivity, and defect documentation on delivery day.
Buying Guides
What NPU TOPS Doesn't Tell You: How Memory Bandwidth Bounds Local LLM Performance
Decode spec sheets to find memory bandwidth, not TOPS. Learn to evaluate NPU hardware for local LLM performance before you buy.
Hardware & Peripherals
Verifying LED Panel Driver Failures Before Desoldering: What Ohm's Law Covers That a Visual Inspection Misses
Measure power-rail voltage, decode resistor markings, and compute expected dissipation to decide if your LED driver is worth repairing before desoldering.
Guides & How-Tos
Portable Power Station Claims Don't Add Up: How to Check the Math Yourself
Marketing specs obscure the real runtime. Use Ohm's Law and free browser math tools to verify power station capacity before you buy.
Buying Guides
Wi-Fi 7 Router Buying Guide: What the Specs Actually Mean for Gaming and Streaming
Decode Wi-Fi 7 spec sheets and learn which router features affect gaming latency, streaming stability, and NAT behavior.
Buying Guides
What Mechanical Keyboard Specs Actually Matter and How to Verify Them in Your Browser
Which keyboard specs separate real improvements from marketing filler, and how to verify polling rate, debounce, and rollover claims before you buy.
Buying Guides
What to Look for in a VPN That Actually Protects Your Privacy
How to verify a VPN's privacy claims before subscribing, using browser-based network tools to test IP leaks, DNS routing, and tunnel integrity.
Security & Privacy
Auditing URLs Before You Share Them: Catching Tracking Tokens, API Keys, and Credential Leaks
Catch tracking tokens, API keys, and credential leaks in URLs before you share them. A 30-second audit workflow using CapyToolkit's URL Parser.
Audio & Acoustics
Verifying Your Full Audio Signal Chain Before Every Recording Session
A 5-step pre-session workflow using three browser tools to verify your microphone, speakers, room, and gain staging before recording or voice sessions.