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Media files such as images, documents, and audio help you create a rich, interactive app experience for your users. You can upload files both during the app-building process and in your live app, giving your users new ways to share and engage. You can also add a custom logo that appears when someone adds your app to their home screen. The logo is also used as the browser favicon, so your app always looks professional and on-brand from both desktop and mobile.

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Uploading media to the AI chat

When building with AI chat, you can upload files to help generate app content and styles. To upload a file to the AI chat, click Upload files and type your message to explain what you want it to do with the file. 2025 10 05 15 44 20 Pn

File upload limits in the chat

  • Images: PNG, JPG, JPEG
    • Max size: 25MB
    • Max dimensions: 1024×1024 pixels (larger images are resized automatically)
    • Example: Upload a screenshot of a website you like and say: “Use this header style for my homepage.”
  • Documents: PDF, TXT, HTML
    • Max size: 25MB
    • Example: Upload a brand guide PDF so the AI follows your company’s style rules.
  • Videos: Not supported.
Tip: You can also ask the AI to add images to your app, and it will create them using AI.

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Sharing media on your live app

Let your users upload media directly in your live app. You and your users can share, download, or interact with content to create a more engaging experience. Just tell the AI chat what you want your users to be able to do, and the AI will set it up for you. Adding a file upload option for your Base44 app users

File upload limits on your live app

  • Images: PNG, JPG, JPEG (max size: 50MB)
  • Documents: PDF, TXT, HTML (max size: 50MB)
  • Video: MP4 (max size: 50MB)
  • Audio: MP3, WAV (max size: 50MB)
Personalize your app by adding a logo. Your logo is visible to users when they add your app to their home screen and also appears as the browser favicon. To change your logo:
  1. Go to your app’s dashboard and click Overview.
  2. Click the Edit icon on the logo and either:
    • Upload your own image file
    • Click Generate Logo to create a new one with the AI
Changing your app's logo in Base44
Logos generated in Base44 can only be used within your app and cannot be exported.

File limits for your logo

  • Image formats: PNG, JPG, JPEG
  • Max size: 5MB
  • Max dimensions: 1024×1024 pixels (larger images are resized automatically)
For best results, use a clear, square image with a transparent background.

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FAQs

Click a question below to learn more.
If your file isn’t uploading to the chat, it’s most likely because the file is too large or the wrong format. Review the limits above and try again.
Yes, you can replace your logo image at any time from your dashboard inside the app editor. The new logo will appear once your changes are published.
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