title: Planning to make web app like Canva
body: <p>I want to make app like canva but i dont know where to start, i have good experience in html and css but a basic javascript.</p>
  
  <p>I need to know what they use.</p>
  
  <ul>
  <li>How to save html data to image like canva functions.</li>
  <li>How they save the data and load it again.</li>
  </ul>
  
  <p>I already try Html2canvas but problem in images limit.</p>