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Comments Drawing Canvas

A freehand drawing comment system for React and Next.js with HTML5 canvas, color picker, brush sizes, undo/redo, and inline sketch display built with shadcn/ui and Tailwind CSS

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Add visual annotation to discussions with this drawing canvas comment block for React and Next.js. Features HTML5 canvas freehand drawing, color palette selection, adjustable brush sizes, undo/redo controls, and inline sketch preview in comment threads. Built with TypeScript, shadcn/ui Button, Badge, and Avatar components, motion/react animations, and Tailwind CSS. Perfect for design feedback, visual brainstorming, and creative collaboration.

File Attachment Comments

Comments with multi-file upload

Rich Text Comments

Comments with formatting toolbar

Code Review Comments

Comments for code review

Inline Comments

Inline commenting on content

Basic Comments

Simple threaded comment section

Reactions Comments

Comments with emoji reactions

FAQ

Last updated on April 4, 2026

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Digital Signature

A cryptographically signed comment section for React and Next.js with digital signatures, verification badges, and non-repudiation proof built with shadcn/ui and Tailwind CSS

Edit History

Full revision history for comments in React and Next.js with diff view, version comparison, and rollback capability built with shadcn/ui and Tailwind CSS