Free · Open Source · Chrome Extension

Annotate Anything.

On Any Webpage.

Draw, highlight, write, and whiteboard — directly on top of any website. No sign-up. No data collected. Works everywhere.

Download for Chrome ✨ Try Demo How to Install

Free download · Windows · Chrome · v1.0

✏️ Pen
✨ Magic Pen
🖊️ Highlighter
➡️ Arrow
⬜ Rectangle
⭕ Circle
T Text
🧹 Eraser
🖥️ Whiteboard

Everything you need.
Nothing you don't.

A complete annotation toolkit that lives in your browser — lightweight, private, and always ready.

🎯

Works on Any Page

Turn ON once — Self Annotate injects itself on every page you visit, every refresh, every tab. No need to click again.

🖥️

Floating Whiteboard

A full multi-page whiteboard that floats over any website. Resize, minimize, go fullscreen. Export pages as PNG or PDF.

🌙

Auto Dark Mode

Follows your Windows system theme automatically. Switch between Light, Dark, or Auto — saved across all sessions.

📍

Remembers Your Setup

Drag the toolbar anywhere — it stays there on every page. Language and theme preferences are saved permanently.

🔒

100% Private

No accounts. No servers. No tracking. Everything stays in your browser — nothing leaves your device.

🌍

English & বাংলা

Full support for both English and Bangla interfaces. Switch instantly from the settings panel.

Every tool, detailed.

✏️ Annotation Overlay
✏️
Pen
Smooth freehand drawing on any webpage
Magic Pen
Draws and fades away after 2 seconds
🖊️
Highlighter
Semi-transparent marker for highlighting text
➡️
Arrow
Draw arrows to point at content
Rectangle
Draw boxes to frame content areas
Circle
Draw circles and ellipses freely
T
Text
Type text labels directly onto the page
🧹
Eraser
Erase specific strokes by touch/click
↩️
Undo
Undo last stroke — also Ctrl+Z
🗑️
Clear All
Remove all annotations from the page
👁️
Hide / Show
Temporarily hide all annotations
🤚
Scroll Mode
Pause drawing to scroll freely
↔️
Rotate Bar
Switch toolbar between horizontal and vertical
🖥️ Whiteboard
📄
Multi-page
Add, navigate, delete whiteboard pages
Page Thumbnails
Visual overview of all whiteboard pages
⬇️
Export PNG / PDF
Save current page as PNG or all pages as PDF
🎨
5 Backgrounds
Grey, White, Dark, Yellow, Green
↔️
Resizable Window
Drag any edge or corner to resize
Fullscreen Mode
Expand whiteboard to fill entire screen
Minimize
Collapse to a tab at the screen bottom
⚙️ Extension Settings
🟢
Permanent ON/OFF
Toggle once — auto-injects on every page
🌙
Auto / Light / Dark Theme
Follows system preference or manual override
🌍
English / বাংলা
Full bilingual interface support
📍
Position Memory
Toolbar location saved across all pages
💾
Persistent Settings
Saved in chrome.storage + localStorage

Up in 60 seconds.

No Chrome Web Store needed. Load it directly as an unpacked extension.

1
Download & Extract the ZIP

Click the download button below to get self-annotate-v1.0.zip.
Right-click the ZIP → "Extract All..." → extract to a permanent folder, for example:

C:\Users\YourName\Extensions\self-annotate\

After extracting, the folder should contain:

manifest.json
background.js
content.js
options.html
icons\
⚠️ Do NOT delete this folder after installing — Chrome loads the extension directly from it.
2
Open Chrome Extensions

In the Chrome address bar, type and press Enter:

chrome://extensions
3
Enable Developer Mode

Look at the top-right corner of the extensions page.
Toggle ON the switch labelled "Developer mode".
New buttons will appear on the top-left of the page.

4
Load the Extension

Click "Load unpacked" (top-left button).
In the folder picker, navigate to your extracted folder where manifest.json is visible.
Click "Select Folder".

Self Annotate will now appear in your extensions list.

✅ Extension installed successfully
5
Pin the Extension

Click the 🧩 puzzle icon in the Chrome toolbar (top-right).
Find "Self Annotate" → click the 📌 pin icon.
The ✏️ pencil icon will now always show in your Chrome toolbar.

6
Turn It ON & Start Annotating

Click the ✏️ Self Annotate icon in the Chrome toolbar.
The badge turns green showing "ON".

Open any webpage — a ✏️ button appears at the bottom-right.
Click it to open the annotation toolbar and start drawing!

🎉 You're ready to annotate!

Try it before installing.

The real annotation tool running on an actual physics lecture page. No install needed — opens in a new tab.

📄 তড়িৎচৌম্বকীয় আবেশ — Online Physics
Physics · Chapter 5
তড়িৎচৌম্বকীয় আবেশ
ফ্যারাডের সূত্র ও লেঞ্জের সূত্র
কোনো বর্তনীর মধ্য দিয়ে চৌম্বক ফ্লাক্সের পরিবর্তন হলে বর্তনীতে একটি তড়িচ্চালক বল আবিষ্ট হয়...
ε = −dΦ/dt
important!
✏️ 🖊️ ➡️ T
✏️
Open Live Demo in New Tab
✏️ Full annotation toolbar
🖥️ Whiteboard with export
📜 Real scrollable page
💾 No install needed
Latest — v1.0 Stable

Ready to annotate?

Download Self Annotate for free and install it in under a minute.

Download self-annotate-v1.0.zip
Chrome on Windows No sign-up required Free forever