Online Drawing Pad and Image Annotator
Use our free online drawing pad to sketch on a blank canvas or annotate images directly in your browser. Draw, blur, and sign documents instantly.
About Drawing Pad / Annotator
The Doffl online drawing pad allows you to sketch ideas from scratch or annotate existing images directly in your web browser. Whether you need to highlight key details on a screenshot, blur sensitive information, or create a quick digital signature, this versatile canvas handles your visual markup tasks without any software installation.
Designed for educators, designers, remote teams, and casual users, the tool runs entirely on your device for fast performance and privacy. Open an image, apply custom brush strokes, shapes, and text notes, and export your finished work in seconds.
Key features
- Blank canvas and custom image upload support
- Precision freehand drawing with adjustable brush sizes
- Blur tool to obscure private or sensitive details
- Digital signature creator for quick document approvals
- Shape, text, and highlighter tools for clear annotations
- Instant local export to standard image formats
How to use Drawing Pad / Annotator
- Open a blank canvas or upload an image from your device.
- Select your preferred tool, such as brush, highlighter, text, or blur.
- Adjust stroke thickness, opacity, and color palette settings.
- Draw, add notes, or mark up areas directly on the canvas.
- Click export to download your annotated image immediately.
Who is it for?
- Students and teachers adding visual notes to diagrams and assignments
- Remote workers highlighting feedback on design mockups and screenshots
- Professionals generating and saving quick digital signatures
- Content creators obscuring personal data and license plates before publishing
- Casual artists sketching quick concepts and ideas on a responsive canvas
Frequently asked questions
Is this online drawing pad free to use?
Yes, the drawing pad is completely free to use with no account registration or subscription required.
Can I annotate an existing image or photo?
Yes, you can upload JPG, PNG, and other standard image formats to draw, write, or highlight over them directly on the canvas.
Are my uploaded images stored on your servers?
No, the tool operates entirely within your web browser. Your images and drawings are processed locally on your device and are never sent to external servers.
How do I blur sensitive details on an image?
Select the blur tool from the toolbar and drag it across the areas containing private data, such as addresses, phone numbers, or faces.
Can I use the tool to make a digital signature?
Yes, you can draw your signature using the pen tool on a blank canvas and save it as an image file for use in documents.