ToolBoxToolBox Blog
Tool usage guides, real-world applications, and game walkthroughs
100 articlesHTML Validator: Complete Usage Guide
The HTML Validator instantly catches syntax errors, missing tags, and improper nesting in your HTML5 code without signup
Readability Checker Guide & Tips
The Readability Checker automatically analyzes your Japanese text and calculates readability scores, grade levels, and k
HTML Preview Tool Guide
The HTML Preview tool lets you write and test HTML, CSS, and JavaScript code with instant live preview and console outpu
Tree Diagram Maker Guide
The Tree Diagram Generator converts simple indented text into professional visual hierarchy charts. Create organization
Venn Diagram Maker Guide
The Venn Diagram Generator creates 2-circle and 3-circle Venn diagrams instantly with custom labels and region text. Vis
Bulk URL Opener Guide
Bulk URL Opener loads multiple websites instantly by pasting a simple list of links. Save hours when you need to access
Number Memory Game: Strategy Guide
Number Memory Test challenges your short-term memory with sequences that get longer each time you pass a level. Start me
1D Reversi: Strategy Guide
1D Reversi simplifies the classic board game to a single row of 21 squares, stripping strategy down to pure tactical dec
Table Style Generator Guide
Table Style Generator lets you design professional HTML tables visually without writing CSS code. Customize borders, col
Typing Speed Test Guide
Typing Speed Test measures how fast and accurately you type Japanese text using romaji input method. Get instant CPM (ch
Color Temperature Converter Guide
The Color Temperature Converter transforms Kelvin values (1000K–40000K) into RGB and HEX color codes, eliminating manual
Dots and Boxes: Strategy Guide
Dots and Boxes is a turn-based strategy game where you connect dots with lines to complete and claim boxes before your o