Chalk−1
Saved on this device
The link itself carries a copy of the workspace, after the # sign. Nothing is sent to a server. For a large workspace, use Export instead.

Learn
Press Text, Math or Chem to start.
Have an idea or found something broken?

Send a bug report, feature idea, or anything else that could make Chalk Inverse better.

Only the feedback you submit and basic page/version information are sent.

You can also email feedback@chalkinverse.com.

Rounding

Reuse and Send follow the displayed result. Ans keeps the underlying value. = means exact, ≈ means rounded.

Stickers

Turn your own PNG or JPEG into a sticker, then drag it into place and lock it.

PNG keeps a transparent background. Stickers have no frame and can be locked to the chalkboard.

On this page

Lock a sticker once it's where you want it. Select or unlock it here later.

Stickers save and print with your work.

Saved workspaces

Saved in this browser only.
Chalkboards to print

Label a math line

Labels are notes. They don't change checking.
Prints and shares with the workspace.

Hidden hint or answer

Stays hidden until the reader taps it.
Whether it's been revealed is saved with this workspace.

Shortcuts

Toggle drawing mode
Ctrl/CmdShiftD
Math actions, or show Chemistry tools, for the current box
Ctrl;
Add a math box
CtrlM
Bold text in a text box
CtrlB
Italic text in a text box
CtrlI
Add a line in the math box
Enter
Leave the box
ShiftEnter
Evaluate the highlighted line, in a math box
CtrlS
Simplify the whole math line, in a math box
Ctrl.
Factor the line, in a math box
CtrlF
Expand the brackets, in a math box
CtrlG
Next cell or nested list level
Tab
Previous or next chalkboard (outside text editors)
CtrlPageUpPageDown
Move the current chalkboard left or right
Alt←→
Flip a focused Flashcard
EnterSpace
Duplicate a focused Flashcard
Ctrl/CmdD
Delete the selected object
Backspace
Undo
CtrlZ
Redo
CtrlY
Redo (alternative)
CtrlShiftZ
Save a named copy
CtrlShiftS
Print or save as PDF
CtrlP
New workspace
CtrlAltN
Leave drawing mode
Esc
Copy or paste a selected chemical structure
CtrlC / V
Nudge a selected drawing; hold Shift for larger steps
Arrow keysShift

Settings

Math and Chemistry actions

On desktop, show actions when the caret is inside Math. Touch screens use a dismissible action strip.When off, open them with ⋯ or Ctrl + ; inside a Chemistry box.

Style

Classic

Board

Light or dark
Paper

Pen

Your writing color. It also colors the ruling.

Writing

Face
Size
Line width

Reading

High readability shows Classic with bigger text, stronger contrast and clearer focus. Your theme is remembered.
Readability

Calculator

Side panel
Key size

Keypad

Turn off keys you never press. The rest get bigger.

Backups and sharing

Export downloads a file you can open again with Import. Share puts a copy of the workspace inside the link itself, so nothing goes to a server. For a big workspace, Export instead.

Tools

Choose a subject or search all tools.

Recent

Chalkboards

Jump to another chalkboard. Nothing changes.

Help

The Chalk Inverse manual

None of this leaves your device.

Graph

Pick an element