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Media files such as images, documents and data files help you create a rich, interactive app experience for your app users. You can upload files both during the app-building process and in your live app, giving your app users new ways to share and engage.
Examples of images used across an app layout
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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Using your file library

Your app has its own file library where Base44 stores media files that you upload or generate while you build. This gives you one place to organize and reuse the visuals that appear across your pages, components, and flows. You can use your file library to keep all of your images in one place and add them to your app, as well as store reference files such as brand guides, PRDs, or data exports that you can use in your app and in the AI chat. Any images the AI generates and any files you upload from the editor or AI chat are automatically stored in the file library, and when you add a file from the library to the AI chat, the AI uses it as context for your prompts.
The file library is per app. Files saved in one app’s library are not shared with other apps in your workspace.
The file library showing uploaded and generated images
To access your file library:
  1. Go to your app editor.
  2. Click the Add icon in the AI chat.
  3. Click Choose from library.
Selecting files from the file library in the AI chat

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Adding files to your app

You can add files to your app from your file library, from your computer, or from Google Drive. All files you add this way are stored in your app’s file library so you can reuse them across your app and in the AI chat. For example, you can keep a folder of product photos in your file library and then attach those photos in the AI chat when you ask the AI to design a new gallery section.
Tip: You can also ask the AI to add images to your app, and it will create them using AI.

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From your file library

Use your file library whenever you want to reuse existing media instead of uploading a new file.
To add a file from the library in the AI chat:
  1. Go to your app editor.
  2. Click the Add icon in the AI chat.
  3. Click Choose from library.
  4. In the Select files dialog, search or browse to find the file you want.
  5. Select the file and click Add.
  6. Type your message to explain what you want the AI to do with the file, then send it.
You can replace standalone images on your site using Edit mode. This does not work for images that are parts of components, such as a gallery. For that, you need to use the AI chat or edit the data directly from Data in the dashboard.To replace an image using your file library:
  1. Go to your app editor.
  2. Click Edit in the chat.
  3. Click the file you want to change.
  4. Click Replace.
  5. Search or browse your file library to find the new file.
  6. Select the file and click Replace.
Replacing an image from the file library in Visual Edit mode

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From your computer

Upload files that are saved locally on your device when you want to share images, documents, or data files directly with the AI chat. To upload a file from your computer:
  1. Go to your app editor.
  2. Click the Add icon in the AI chat.
  3. Click Upload from computer.
  4. Select the file you want to use and confirm.
  5. Type your message to explain what you want the AI to do with the file, then send it.
Uploading files from your computer to the AI chat

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From Google Drive

Connect Google Drive if you want the AI chat to work directly with Docs, Sheets, and Slides stored in your Drive without downloading them first.
Adding files from Google Drive to the AI chat
When you connect Google Drive, only the files you select are accessed. Base44 stores a copy of each selected file in your app’s file library so the AI chat can use the content as context.
To add a file from Google Drive:
  1. Go to your app editor.
  2. Click the Add icon in the AI chat.
  3. Click Add from Google Drive.
  4. Review the information in the Connect to Google Drive window and click Connect Google Drive.
  5. Complete the Google sign-in flow and approve access if this is your first time connecting.
  6. Choose the Docs, Sheets, or Slides files you want to use from your Google Drive and confirm.
  7. Type your message to explain what you want the AI to do with the file content, then send it.
Tip: You can also add files from Google Drive in your very first prompt:
Firstpromptgogledrive

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File upload limits

These limits apply to any files you upload into your app’s file library, whether you add them from the AI chat or directly from the editor.

File upload limits for your file library and AI chat

Images: PNG, JPG, JPEG, GIF
  • Max size: 40MB
  • 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 and text files: PDF, TXT, HTML, DOCX, MD
  • Max size:
    • PDF: 10MB
    • TXT and HTML: 5MB
    • DOCX and MD: 5MB
  • Example: Upload a PRD or brand guide so the AI follows your product and style rules, or share a markdown file with requirements for a new app.
Data files: CSV, XLS, XLSX, JSON
  • Max size:
    • CSV and JSON: 10MB
    • XLS and XLSX: 15MB
  • Example: Upload a CSV, Excel, or JSON file with your existing business data and ask the AI to analyze it, suggest entities and fields, propose a data model for your app, or prepare the data for import. To learn how to import the data into your tables, see Managing your app data.
Videos: Not supported.

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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. This feature uses the built-in UploadFile integration. Adding a file upload option for people using your Base44 app

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File upload limits for your app

These limits apply to any files that app users upload through your live app using the UploadFile integration.

File upload limits on your live app

  • Images: PNG, JPG, JPEG, WEBP (max size: 50MB)
  • Documents: PDF, TXT, HTML (max size: 50MB)
  • Data files: CSV, XLS, XLSX, JSON (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.
  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.
Use these limits when you choose or generate a logo image for your app.

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.
This error can happen if you upload an image that was renamed to PNG, JPG, or JPEG without converting it properly (for example, changing the file name from .webp to .png).To fix this:
  • Try reverting your last message if you just uploaded the image.
  • Check that your file is one of the supported formats listed in the Media guide and has not simply been renamed from another file type.
  • Make sure your file does not exceed the size limits set in the Media guide.
  • Try uploading your file again using a supported format.
If you still have trouble after these steps, contact support for help.
You can disconnect Google Drive at any time from your account settings.To disconnect Google Drive:
  1. Click your profile icon at the top-right of Base44.
  2. Click Settings.
  3. Click Account settings under Account.
  4. Scroll to the Chat Settings section.
  5. In the Google Drive card, click Disconnect.
  6. Confirm the disconnection.
Disconnecting Google Drive from Base44
Yes, you can replace your logo image at any time from your dashboard inside the app editor. The new logo appears once your changes are published.
There is no hard storage limit per app. You can store as many files as your app needs. The only constraints are on individual file sizes, see the limits above for each file type.