Guides & Updates
Practical debugging write-ups, tool deep dives, and engineering notes from building jsonyaml.com.
Cron Expressions Explained: Read Schedules and Convert Cron to Time
5/28/2026By RMcrondevopsschedulingcrontabgithub-actionskubernetesLearn the five cron fields, decode common schedules like */5 * * * *, and verify next run times before you deploy a job.
Date Calculator: Debug Dates, Ranges, and Durations
5/28/2026By RMdatetimedebuggingopsschedulingQuickly compute date ranges, offsets, and durations without hand math.
Image Compressor for Web Assets: Reduce Size Safely
5/28/2026By RMimagescompressionperformancewebShrink image sizes for the web without destroying quality.
JSON Merge Online: Combine Configs Without Breaking Keys
5/28/2026By RMjsonmergeconfigsdebuggingdevopsMerge two JSON objects and catch conflicts before they break your config.
JSON to YAML Converter: Prep Configs for K8s and CI
5/28/2026By RMjsonyamlkubernetesciconfigsdevopsConvert JSON configs into readable YAML for ops workflows.
JSONPath Examples: Extract Values from JSON with a Path Finder
5/28/2026By RMjsonjsonpathapidebuggingjavascriptdataLearn JSONPath basics with copy-paste examples for nested objects, arrays, and wildcards, then test paths on real API payloads before you ship code.
Kubernetes Spec Compare: Spot Breaking API Changes
5/28/2026By RMkubernetesk8sapiupgradedevopsCompare Kubernetes API specs across versions before an upgrade surprises you.
PNG to Banner Sizes: Quick Social and Web Banners
5/28/2026By RMpngbannersimagessocialwebassetsResize a single PNG into common banner sizes without guessing dimensions or redoing exports.
Quick Data Visualization from CSV or JSON (No Setup)
5/28/2026By RMdatavisualizationcsvjsondebugginganalyticsDrop in data and explore charts instantly to spot trends and outliers.
Time to Cron Converter: Schedule Jobs from Human Time
5/28/2026By RMcronschedulingdevopssretimeTurn a human schedule into a cron expression without manual math.
Unicode Decode: Fix Garbled Text in Logs and APIs
5/28/2026By RMunicodeencodinglogsapidebuggingjsonDecode escaped Unicode sequences so you can read the actual text again.
Convert PNG to ICNS for macOS Apps (Xcode-ready icons)
3/8/2026By RMmacosicnspngxcodeapp-packagingiconsassetsTurn a single PNG into a proper multi-size ICNS file that macOS and Xcode actually like, without fiddling with manual resizing.
Why Googlebot Kept Showing My Old Website on Netlify (Even After Deploys), And How I Finally Solved It
11/29/2025By RMnetlifyseogooglebotcachingprerenderingtroubleshootingnextjsweb-developmentdeploymentWhen Googlebot and Google Search Console showed an old cached homepage while regular users saw the updated site, I discovered Netlify's prerendering cache was the culprit. Here's how I fixed it.