Sketch App with AI Assist

A lightweight AI-assisted sketch app where users can quickly create simple drawings that are transformed into more complete, expressive images—enhancing the original idea with style.

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🎨Sketch App with AI Assist

Inspiration

I wanted a simple, lightweight way to sketch and transform ideas using AI—without bulky tools or complex workflows. Building the entire app with AWS Lambda was a new experience for me, and exploring serverless architecture made the project even more exciting.

What it does

Sketch App lets users:

  • Draw sketches directly in the browser
  • Save and revisit their work
  • Toggle visibility between public and private
  • Like public sketches published by others
  • Transform sketches into polished artwork

How I built it

  • Frontend: HTML/CSS, JavaScript, and a canvas-based drawing interface
  • Backend: AWS Lambda functions handling storage, user actions, and connect to other AWS services
  • Storage: DynamoDB for storing sketches, like counts, and metadata
  • AI Integration: connect to Amazon Bedrock service
  • UI: Clean, minimal layout with compact icons and intuitive controls

Challenges I ran into

  • Hitting payload limits on API request
  • Work around DynamoDB object size limit
  • Making hover/tap actions work seamlessly across devices
  • Keeping the app simple and responsive while supporting key features

Accomplishments I'm proud of

  • Finished most of the features I planned, and the app works well
  • This was my first time using an entirely new stack with AWS Lambda and DynamoDB
  • Learned many new tools and concepts along the way
  • Built a full-stack solo project that combines design, AI, and backend logic

What I Learned

  • Built and structured a serverless application using AWS Lambda
  • Gained hands-on experience with AWS services and related tooling
  • Balanced feature scope and simplicity effectively as a solo developer

What's next

  • Add more feature to the app
  • Explore real-time sketch collaboration
  • Address the bugs and improve scalability
  • Cost optimization
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