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⏰ Cron & scheduling · Build, test, convert and debug schedules
Build and test by dialect
One builder per scheduler, each with next runs and the traps of that dialect.
Convert and translate
Move a schedule between dialects, time zones and systemd.
Generate config and code
Manifests, unit files and Java code that run your schedule.
Audit and visualize
Find collisions, daylight-saving surprises and see the month at a glance.
☕ Java developer · Classes, config, traces, Kafka, dates and regex
Generate classes
Turn tables and JSON into entities and POJOs.
Debug and size the runtime
Read traces and dumps, and size heap, pools and partitions.
Build and configuration
Maven, Gradle, Spring properties, JDBC URLs and Docker images.
Strings, numbers and dates
Formatting, regex, rounding and java.time patterns.
🗂️ JSON, YAML, XML, CSV & SQL · Format and convert data
Format and validate
Tidy a document and find out why it is invalid.
Convert between formats
JSON, YAML, XML, CSV and .env, both ways.
Query and compare
Pull values out with JSONPath and see exactly what changed.
Generate code and schemas
Typed models, schemas and SQL from an example.
🧰 Encoders & dev utilities · cURL, Base64, URLs, QR, bases and more
Paste and check
Paste anything and get it identified, or verify what an AI wrote.
HTTP and the web
curl, CORS, cookies, caching and JWTs.
Encode and decode
Base64, URLs, HTML entities, number bases and mystery strings.
Handy utilities
Sizes, checksums, QR codes and Unix permissions.
🚢 DevOps & Kubernetes · Manifests, CI, nginx, networks and Git
Kubernetes and containers
Manifests, Compose conversion and resource maths.
Web servers and networks
nginx server blocks and subnet maths.
Git and CI
Workflows, ignore files and commit messages.
Reliability
Retries that back off instead of hammering.
🎛️ Frontend & CSS · Fluid type, Tailwind palettes, layout, motion
Layout and type
Fluid sizes, flexbox and grid.
Colour and style
Palettes, gradients and shadows with live previews.
Motion
Easing curves and keyframes.
Content and assets
Meta tags, tables, beautifying and inline images.
🔐 Security & IDs · Hashes, passwords, tokens, UUIDs
Tokens and passwords
One-time codes, JWTs and password hashing.
Hashes and IDs
Digests, UUIDs and what an ID encodes.
Certificates and headers
Read certificates and grade security headers.
📝 Text tools · Count, convert, sort and compare
Count and inspect
Words, characters and hidden Unicode.
Convert and generate
Case, slugs, amounts in words and placeholder text.
Clean and compare
Sort, de-duplicate and diff.
🕰️ Date & time · Time zones, meetings, timestamps, date maths
Time zones and meetings
Convert between zones and find shared work hours.
Timestamps and date maths
Epoch values and days between dates.
🎨 Color & design · Pick, convert and check colors
📚 Cheat sheets · Quick references you will reuse
Java and HTTP
Exceptions, versions, regex and status codes.
Ops and Git
Ports and Git undo recipes.
Cron references
Symbols, error fixes and ready-made schedules.
🎯 Play · Learn something while you wait for the build
Next up
What we are building next.