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Braille Alphabet Chart

The full braille alphabet with the pattern behind it — which letters are stored, which are derived, and why w breaks the rule.

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In short The braille alphabet is not twenty-six symbols to memorise. It is ten, plus two rules. The first ten letters, a to j, use only the four dots in the top two rows of the cell. Add dot 3 to each of them and you get k to t, in order. Add dots 3 and 6 instead and you get u, v, x, y and z. That is twenty-five of the twenty-six letters from ten facts, which is why braille can be learned far faster than it looks. The odd one out is w, dots 2-4-5-6, and the reason is historical rather than logical: Louis Braille was writing for French, which had no w, so the letter was appended later and fits none of the three groups. That is also why w sits between v and x in the chart but breaks the pattern there. The same trick generates the punctuation. Take one of the first ten letters and drop it one row, so dot 1 becomes dot 2 and dot 4 becomes dot 5, and you get the marks: a gives the comma, b the semicolon, c the colon, d the full stop, f the exclamation mark and h the question mark. Only the apostrophe and hyphen have to be learned separately. Enter a word above and each of its letters is shown with the rule that produced it.

How to use the Braille Alphabet Chart

  1. Enter your figures in the input fields.
  2. The result updates as you type, together with the full working.
  3. Check the breakdown table to see exactly how the number was reached.

About the Braille Alphabet Chart

The Braille Alphabet Chart the full braille alphabet with the pattern behind it — which letters are stored, which are derived, and why w breaks the rule. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.

What people use it for

  • Learning the alphabet by its pattern rather than by rote.
  • Checking a single letter before making a label.
  • Teaching how the braille cell works.

Details

Letters storedTen — a to j
Letters derivedFifteen — k to t add dot 3, and u, v, x, y, z add dots 3 and 6
The one exceptionw, dots 2-4-5-6, added later because French had no w
Punctuation derivedSix of eight, by dropping a letter one row
Every cell on this page is computed from U+2800 plus a bitmask rather than read from a stored table, so the chart and the translator cannot disagree.

Frequently asked questions

Why is w out of order?
Louis Braille was designing for French, which did not use w. It was added afterwards and does not fit the three-decade pattern, which is why it looks misplaced.
Do I have to memorise 26 letters?
No. Ten letters and two rules give you twenty-five of them. That structure is the reason braille is quicker to learn than it appears.
Are the numbers different cells?
No. The digits 1 to 9 and 0 reuse the cells for a to i and j, with a number sign in front to say which is meant.
Is this chart the same as a printable one?
The cells are the same. What is here that a printed chart usually leaves out is where each cell comes from, which is what makes the alphabet memorable.
Is the Braille Alphabet Chart free?
Free, unlimited, and no email address required. You can use it a hundred times a day and nothing changes.
Is my data uploaded anywhere?
No. The Braille Alphabet Chart runs entirely in your browser using JavaScript. Because the work happens locally, the page also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
What do I get if I try it?
Enter braille and the Braille Alphabet Chart returns seven cells, each with the rule that generated it.
What is the Braille Alphabet Chart used for?
The jobs it is built for: learning the alphabet by its pattern rather than by rote. Checking a single letter before making a label. Teaching how the braille cell works. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Is there a catch?
Every cell on this page is computed from U+2800 plus a bitmask rather than read from a stored table, so the chart and the translator cannot disagree.
What figures does the Braille Alphabet Chart work from?
Letters stored is Ten — a to j. Letters derived is Fifteen — k to t add dot 3, and u, v, x, y, z add dots 3 and 6. The one exception is w, dots 2-4-5-6, added later because French had no w. These are printed on the page itself, so you do not have to take them on trust.
Is the number rounded?
The calculation runs in double precision and the result is shown to ten significant figures, so converting a value and converting it back returns the original. What is displayed is rounded for readability; what is copied is not.

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