About this tool
Learn the six-dot braille cell with a full dot-number chart, a live text-to-braille view and dot-position quizzes.
Braille Dot Chart Trainer teaches the six-dot braille cell: dots 1, 2 and 3 down the left column and 4, 5 and 6 down the right, giving 64 possible patterns including the blank cell. It shows a full dot-number chart for a-z, 0-9 and common punctuation, transliterates typed text into uncontracted (grade 1) cells, and quizzes you on letters in three directions — cell to letter, dot numbers to letter, and letter to dots. Useful for teachers, accessibility staff and anyone starting braille from scratch.
Open Braille Dot Chart Trainer on AltFTool — it loads instantly in your browser.
Add your input to the workspace.
Adjust the options until the result looks right.
Copy or download the output and put it to work.
Every character is stored as its dot numbers, so the chart, the text view and the quiz all agree.
A wrong dot answer lists the missing and extra dot numbers instead of just marking it wrong.
Capital, number and letter indicator cells appear in the output, so the cell count matches real braille.
Dots 1, 2 and 3 run down the left column from top to bottom, and dots 4, 5 and 6 run down the right column the same way. A cell of six dots gives 64 patterns in total, counting the blank cell used as a space.
The first ten letters, a to j, use only the top four dots (1, 2, 4 and 5). Letters k to t repeat those ten shapes with dot 3 added, and u, v, x, y and z repeat a to e with dots 3 and 6 added. W is dots 2-4-5-6 and breaks the pattern because the original French alphabet had no w.
A number sign (dots 3-4-5-6) is placed before the digits, after which the letters a to i stand for 1 to 9 and j stands for 0. If a letter from a to j follows the digits directly, a grade 1 indicator (dots 5-6) is used to show it is a letter again.
Grade 1, also called uncontracted braille, where each print letter maps to one cell. Most published braille books use grade 2, which contracts common words and letter groups into single cells; that larger system is not produced here.