Online Whiteboard – Free Browser Canvas for Fast Sketching

Use this free online whiteboard from PlainBench to sketch ideas, draw diagrams, and take visual notes right in your browser. Pen, highlighter, shapes, text, undo/redo, eraser, export, and local saves – no sign-up, no uploads.

Browser whiteboard (draw, annotate, export)

Keyboard: Ctrl + Z undo Ctrl + Y redo

Pick a tool, choose a color and brush size, then draw directly on the canvas. You can undo/redo changes, erase, add text, switch backgrounds, and export your board as an image.

Tool:
Color:
Brush size: 4 px
Background:
History:

Text tool: choose Text, click on the board, and type your note when prompted. Great for labels and quick comments.

Local & private – stays in your browser

Saving uses your browser’s local storage on this device only. If you clear site data or switch browsers/devices, your saved board won’t follow you.

How to use the PlainBench online whiteboard

This PlainBench online whiteboard is designed for fast sketching and visual note-taking without logins or complicated menus. Everything centers around a single canvas that you can draw on with a mouse, trackpad, or touch device.

  • Select the Pen or Highlighter for freehand notes and rough sketches.
  • Switch to Line, Rectangle, or Circle to create simple diagrams.
  • Use the Text tool to add labels, titles, or quick annotations wherever you click.
  • Adjust color and brush size to match your style or emphasize important ideas.
  • Tap Undo / Redo (or use keyboard shortcuts) while you refine your board.
  • Change the background between a clean white canvas, a subtle grid, or a dark board.
  • When you’re happy, export your whiteboard as PNG or JPG and drop it into slide decks, docs, or chats.

Because this tool runs directly in your browser, it’s ideal for internal team notes, client brainstorming, and personal planning where you don’t want anything uploaded or tied to an account. Just open the page, sketch, export, and move on.