MatTalX - LaTeX to Unicode math symbols by Samuel Leblanc

Type LaTeX where you are already typing. Press Alt+Shift+W. Get Unicode maths.

MatTalX turns LaTeX commands into real Unicode characters, inside the text box you are writing in — an email, a message, a post, a comment. There is no popup to open and no symbol to hunt down on another website.

• \alpha → 𝛼
• x_n \to 0 → 𝑥ₙ → 0
• \mathbb{R}^n → ℝⁿ
• A \subseteq B → 𝐴 ⊆ 𝐵

Because the answer is ordinary text, it goes wherever text goes. It can be searched, selected, quoted, forwarded and read aloud by a screen reader. It is not a picture of an equation.

Writing with MatTalX

Press Alt+Shift+W in any text field and what you have written is converted where it sits. Select part of it first and only that part is converted.

Cannot remember a command? Write a piece of it and press Alt+Shift+C. Typing "\arrow" brings up all 67 arrows MatTalX knows, each shown beside the character it gives — \rightarrow: →, \hookrightarrow: ↪, \Longrightarrow: ⟹. Arrow keys to move, Enter to take one. It works in the page and in the popup, the same way in both.

An ordinary sentence stays an ordinary sentence: the maths goes between $ ... $, ( ... ) or [ ... ]. Prefer to convert everything? Turn on Math mode.

Make it yours

\newcommand, \renewcommand, \DeclareMathOperator and \DeclareUnicodeCharacter all work, so \RR can be your ℝ and \Aut your operator. Commands you define are suggested next to the ones MatTalX ships with.

What you get

• More than 650 commands, the LaTeX ones you already know
• Suggestions as you type, in the page or in the popup
• Your own commands and operators
• Greek, blackboard bold, script, fraktur, bold, sans serif, superscripts, subscripts, arrows, accents, matrices, and many math symbols
• Free and open source under the MIT licence

Where it works

In ordinary text boxes — Gmail, Outlook, Stack Exchange, GitHub, comment forms — the text is converted where you typed it.

Some editors keep their own copy of what you write and refuse to be written into by anything but themselves. X, Discord, Messenger, Slack and Reddit are the common ones. There MatTalX puts the converted text on your clipboard and leaves what it replaces selected, so a single Ctrl+V finishes the job.

Privacy

MatTalX reads the field you are writing in, on the tab you are looking at, and only after you press one of its shortcuts. The conversion happens on your own computer. Nothing is uploaded, nothing is collected, there is no account and there are no analytics.

Source code: github.com/MatTalX
Documentation: mattalx.org/docs
Try it before installing: mattalx.org/web-version