Chrome extension

Custom buttons — any LaTeX, one key

Turn a LaTeX snippet you type all the time into a mint key on your keyboard. Save it once and the key face renders the symbol itself — click it any time to drop it into your equation.

Custom buttons live under every keyboard mode
Empty slots show a dashed +, saved ones show your symbol
No naming step — the face is rendered from the LaTeX
Right-click any key later to edit or clear it

Create one in three steps Get the free extension

01 — Create a button

Three steps to a new key

Everything happens in the popup — no options page, no reload.

Step 01
Press an empty + slot
The Custom Buttons panel sits under the main keyboard in every mode. Mint keys are already saved; dashed tiles with a + are empty. Click any empty + to open the editor for that slot.
Need more room? Press ADD at the end of the row to grow another line of slots, and Less to shrink back.
Fig. 01 — Empty slots
Step 02
Type the LaTeX to insert
In the Custom Button dialog, click the LaTeX to insert field and type the command — \nabla, \phi, or \mathbb{R}. A live preview appears under the field, so you can confirm the key face before you save it.
Use a real LaTeX command starting with a backslash, not an HTML entity like φ. The face is rendered with MathLive from the same LaTeX the key inserts.
Fig. 02 — Custom Button dialog
Step 03
Save — then use the key
Press SAVE. The dialog closes and your new mint key replaces the empty +. Click that key any time to insert the LaTeX into the equation field. CLEAR empties a slot instead.
To change a key later, right-click it — or long-press on a trackpad — to reopen the same dialog.
Fig. 03 — Saved key

02 — What to save

Examples that work well

Start with a short command. These are the ones students pick most.

\infty

Infinity

\nabla

Nabla / del

\phi

Phi

\hbar

Reduced Planck constant

\mathbb{R}

Real numbers

\mapsto

Maps to

\therefore

Therefore

\partial

Partial derivative

03 — Manage the row

Edit, grow, and keep them in sync

A slot is never permanent — change the LaTeX, add more room, or clear it out.

Right-click to edit

Right-click a saved key — or long-press on a trackpad — to reopen the Custom Button dialog for that slot. CLEAR empties it again.

Grow the row

ADD at the end of the row opens another line of empty slots. Less shrinks the panel back down when you no longer need them.

Also in Options

The same list is editable from the extension's Options page — right-click the toolbar icon, then Options. Storage is shared, so edits stay in sync across keyboard modes.

Get started

Custom buttons ship with the free extension

Six keyboard modes, chemistry, graphing, and your own saved keys — nothing to sign up for.

Download Extension See the whole extension