Book Reading List - Online Track To‑Read & Finished
Add book titles and authors to a to‑read list. Move them to 'finished' and add a rating. Data saved locally.
UD5 Toolkit
Online Days Until Santa Claus Arrives
Santa is Here! Merry Christmas!
Wishing you a joyful and magical holiday season! 🎁
You're 0% of the way through the Christmas countdown cycle
Add book titles and authors to a to‑read list. Move them to 'finished' and add a rating. Data saved locally.
Paste a public SSH key to generate its fingerprint. Verify host keys. Local Web Crypto.
Zoom through sizes from the Planck length to the observable universe. Educational and awe‑inspiring visualization.
Easily convert JSON data arrays into CSV format for Excel or database import. Handles nested structures with flattening options. All conversions happen locally, no data uploaded.
Convert Markdown text into clean HTML code. GitHub Flavored Markdown supported. Copy the raw HTML or preview the rendered output instantly. No uploads.
Fold a virtual square paper step by step with crease lines and visual previews. Practice origami basics without wasting real paper. All canvas‑based.
Split a large CSV into smaller files by row count. Preview each chunk. No upload; streamed locally.
Convert between ounces and millimeters for leather. Visual guide to common project thicknesses.
Click any element to see its Bohr model with electrons orbiting in shells. Beautiful, educational diagram.
Shows live countdown to major holidays and allows custom ones. Visual calendar. Local browser storage.
Set a short timer with a themed emoji animation (e.g., pizza cooking). A playful visual countdown.
Set any future date and see a live countdown in days, hours, minutes, seconds. Fun animated display. Save multiple countdowns locally.
A festive, full‑screen countdown showing the exact days, hours, and minutes until December 25th. Snow effect.
Set your birth date and see a live countdown with days, hours, minutes, and seconds. Shareable link. Pure frontend.
Create a pure CSS countdown timer with a flipping number effect. Adjust duration and style. No JavaScript needed for display.
Run a countdown timer that automatically repeats for a set number of laps. Great for HIIT, study sprints, or any interval work.
Run multiple named timers simultaneously for cooking. Presets like pasta, rice, etc. Audio alarm. Works in background.
Create a personal countdown to any future date (birthday, vacation, launch). Shows days, hours, minutes, seconds. Locally stored.
Set your desired retirement date and see a live countdown of remaining days, hours, minutes. Totally motivating.
Dual-function tool: a precise stopwatch with laps and a configurable countdown timer with alarm sound. Works offline, perfect for activities.