Chess Opening Trainer – Online ECO Code Flashcard Practice
Drill opening names from their ECO codes. See a code and recall the opening. Improve your chess vocabulary.
UD5 Toolkit
No chores added yet. Use quick-add or type your own!
Week of —
| Chore | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
|
Add chores on the left to see your chart here! |
|||||||
Drill opening names from their ECO codes. See a code and recall the opening. Improve your chess vocabulary.
Step-by-step interactive assistant to adjust chair height, monitor distance, keyboard. Save back.
Convert HTML code into well‑formed XML with proper self‑closing tags and attributes. Fixes common HTML5/XHTML mismatches. Local only.
Display an astigmatism dial and instructions for self-assessment. Educational, not a medical diagnosis.
Explore all Intl APIs: NumberFormat, DateTimeFormat, RelativeTimeFormat, ListFormat. See outputs for any locale. Powerful i18n.
Paste HTML and convert to plain text while preserving basic structure (paragraphs, list items). Removes all tags and images. Instant local processing.
Type text and get every character converted to &#xxxx; entities. Useful for encoding.
Paste text and instantly see every character's decimal and hex ASCII/Unicode code point. Supports emojis and symbols.
Strip leading line numbers from code snippets or poetry. Quick and accurate. Restore the original text. Entirely local processing, no data upload.
Paste HTML and instantly remove all tags, leaving only the text content. Optional keep line breaks. Quick cleaning.
Convert normal text to Unicode mathematical bold, italic, script, fraktur, and double‑struck. Copy rich text for anywhere.
Remove all line breaks and turn multi-line text into a single continuous string. Optionally replace line breaks with spaces. Fast and secure local tool.
Drop an .xlsx file and convert each sheet to CSV. Processed entirely in your browser. No upload needed.
Convert CSV data to a real Excel spreadsheet with multiple sheets and simple formatting. Fully local.
Paste delimited data and split it into columns. Choose custom separator. Shows a preview table. Local.
Paste a sentence and remove repeated words (keep first occurrence). For cleaning auto‑generated text. Local.
Convert text between various cases: uppercase, lowercase, title case, sentence case, and more. One-click transformations without altering your original formatting style.
Paste CSV data and pick which columns to keep or drop. Rearrange column order by dragging. Download the new file. All local.
Generate a storyboard grid with notes area. Print or fill online. Pre-production helper.
Spin a wheel to assign weekly chores to children. Customizable tasks. Ends arguments.
Generate a small printable note with an encouraging message or joke to slip into a lunchbox.
Cute vegetable-themed memory matching game for preschoolers. No ads, simple interface.
Custom dimensions for a square paper box with lid. Generate SVG/PDF for cutting. Perfect for small gifts.
Randomly picks an indoor activity from a curated list sorted by age. No materials, no prep ideas included. Banish boredom.
Scale a classic homemade playdough recipe to any amount. Choose colors with safe options. Simple local calculator.
Generate a balanced lunchbox meal suggestion (main + sides) with a click. Prevent lunch rut. No account, local.
A digital sticker board where kids can place virtual stickers for completed chores or goals. Encourages positive behavior with no paper waste.
Create custom number lines (0-20, negative, fractions, decimals) for math education. Adjustable ticks and labels. Instant download.
Fill in your details and generate a professional‑looking invoice ready to print or save as PDF. No sign‑up, all data stays on your device.
Build a small crossword by adding words and clues. Export as a printable PNG or JSON. For classroom and fun.