Annotation Tool + Multi-Page Whiteboard
Draw, highlight, add text, and manage multi-page whiteboards — all inside the browser.
Works on http://, https://, and file:// pages.
No sign-up. No data collected.
Free download · Chrome · Firefox · v1.4.4 Stable
Why Self-Annotate
A complete annotation toolkit that lives in your browser — lightweight, private, with partial eraser, undo/redo, color picker, autosave, layout editor, and Firefox support.
Pen, highlighter, shapes (arrow/rectangle/circle), text, partial eraser (stroke-split), multi-level undo/redo, clear all — plus 7 color swatches, a custom color picker, and stroke width slider. Drag-and-drop toolbar with position memory.
A full floating whiteboard with multi-page support, sidebar thumbnails, export to PNG/PDF, zoom, background colors, and save/load .sswb files.
Annotations and whiteboard data saved per URL in Chrome storage. Blacklist URL patterns to exclude specific sites. Auto-restore when revisiting a page.
Built-in presets (Default, Minimal, Drawing, Compact), custom drag-and-drop groups with Inline or Flyout modes. Works for both annotation and whiteboard toolbars.
Injects on http://, https://, and file:// pages. No sign-up. No servers. No tracking. Chrome MV3 + Firefox build available.
No accounts. No servers. No tracking. Everything stays in your browser — layout, settings, and annotations never leave your device.
What's New in v1.4
v1.4 adds a stroke-split partial eraser, full multi-level undo/redo, a custom color picker, plus all v1.3 features (autosave, layout editor, Firefox, multi-page whiteboard).
Erase through strokes without deleting entire annotations — the eraser splits strokes at the erasure point.
Full undo/redo history for annotations — undo individual strokes or batch actions.
Choose any color beyond the 7 preset swatches — full spectrum color picker for pen, highlighter, and shapes.
Annotations and whiteboard data persist across visits — saved per URL in Chrome storage.
Fully customize both the annotation toolbar and whiteboard toolbar from the popup:
Self-Annotate now ships as a Firefox add-on alongside the Chrome MV3 extension.
The floating whiteboard gets smarter with better page management and export options.
Quickly switch between toolbar configurations with built-in presets.
Quality-of-life improvements across the board.
New Popup Menu
Everything is now in the popup — no gear button cluttering your pages. Three tabs, all settings in one click.
Full Feature List
Installation
No store needed. Load directly as an unpacked extension or temporary add-on.
Get the right package for your browser:
Chrome: self-annotate-v1.4.4-chrome.zip
Firefox: self-annotate-v1.4.4-firefox.zip
Extract the Chrome ZIP to a permanent folder (e.g. C:\Extensions\self-annotate\).
Open chrome://extensions → enable Developer mode (top-right)
Click Load unpacked → select the extracted folder.
Open about:debugging#/runtime/this-firefox
Click Load Temporary Add-on → select the Firefox ZIP file directly.
For permanent install, submit to addons.mozilla.org.
Chrome: Click the 🧩 puzzle icon → find Self Annotate → click the 📌 pin icon.
Firefox: Add-on icon appears in the toolbar automatically.
Chrome: Extension details → enable "Allow access to file URLs"
Firefox: about:addons → Self Annotate → Preferences → enable "Access to file:// URLs"
Click the ✏️ Self Annotate icon → the popup opens.
Toggle Annotate Mode ON — badge turns green.
Open any webpage → a ✏️ button appears bottom-right.
Click it to open the toolbar and start drawing!
Live Demo
The real annotation tool running on an actual physics lecture page. No install needed — opens in a new tab.
Download Self-Annotate v1.4.4 for Chrome or Firefox — autosave, layout editor, multi-page whiteboard, partial eraser, undo/redo, and custom color picker included.