Date Planning Tools
Anniversary Calculator
Upcoming anniversaries and their weekdays.
How it works
Three steps, no friction.
- Step 1
Paste your text
Drop copy, HTML, or Markdown into the workspace.
- Step 2
Adjust settings
Optional per-tool controls fine-tune the analysis.
- Step 3
Download or copy
Every run outputs artifacts you can copy, download, or share.
Benefits
Why teams choose WebRul.
- 100% client-side — no data leaves your browser
- Deterministic, offline-first math (no external APIs)
- Copy, download, and print-friendly reports (Markdown, CSV, JSON, TXT)
- Accessible, keyboard-first UI with reduced-motion support
FAQ
Questions, answered.
Is my content stored or logged?
No. Everything runs client-side in your browser. Nothing is uploaded, cached, or logged.
What file formats can I paste?
Plain text, Markdown, or HTML — the tool strips markup where it makes sense.
Can I export the results?
Yes. Every run generates copyable text plus downloadable artifacts.
Related tools
Keep the flow going.
Due Date Calculator
Add N days to a start date for a generic due date.
Pregnancy Due Date Calculator
Naegele-rule estimated due date from LMP.
Retirement Date Calculator
Date you reach a target retirement age.
Project Timeline Calculator
End date from start + business-day duration.
Need something custom?
Talk to the WebRul team about custom integrations, private tooling, or enterprise access.