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openclaw - 💡(How to fix) Fix Feature Request: Display images directly in webchat responses [1 participants]

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openclaw/openclaw#50946•Fetched 2026-04-08 01:06:17
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wangbiwangwangbiwang
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wangbiwangwangbiwang

Fix Action

Fix / Workaround

Current Workaround

RAW_BUFFERClick to expand / collapse

Problem

When the assistant generates or reads an image file (PNG/JPG), the image is not displayed directly in the webchat interface. Instead, users see either:

  • A broken/empty response
  • Need to manually open the file path in the filesystem

This happens with:

  • read tool on image files
  • message tool with image attachments
  • Screenshots and generated images

Expected Behavior

Images should render inline in webchat, similar to how they work in other channels (Discord, Telegram, Slack).

Current Workaround

Users must:

  1. Open file path directly: \\wsl$\Ubuntu\home\wang\.openclaw\...
  2. Use a local HTTP server and open in browser
  3. Switch to another messaging channel

Proposed Solution

Add image rendering support to webchat:

  • Detect when read tool returns an image
  • Display inline with proper MIME type
  • Support message tool image attachments

Environment

  • OpenClaw version: latest
  • Channel: webchat
  • Platform: WSL2 (Linux)

Related

This would improve the user experience for:

  • newspaper-brief skill (generates newspaper-style images)
  • stock-analysis skill (charts)
  • Any screenshot or image generation use case

extent analysis

Fix Plan

To add image rendering support to webchat, follow these steps:

  • Detect when the read tool returns an image by checking the file extension or MIME type.
  • Display the image inline with the proper MIME type using an <img> tag.
  • Support message tool image attachments by parsing the attachment metadata and rendering the image.

Example Code

import mimetypes

def render_image(file_path):
    # Detect MIME type
    mime_type = mimetypes.guess_type(file_path)[0]
    
    if mime_type and mime_type.startswith('image/'):
        # Render image inline
        return f'<img src="{file_path}" alt="Image">'
    else:
        # Handle non-image files
        return f'File: {file_path}'

# Example usage:
file_path = '/path/to/image.png'
rendered_image = render_image(file_path)
print(rendered_image)

Verification

To verify the fix, test the following scenarios:

  • Use the read tool to generate or read an image file and verify that it is displayed inline in the webchat interface.
  • Use the message tool to send an image attachment and verify that it is rendered correctly.
  • Test with different image file types (e.g. PNG, JPG, GIF) and verify that they are displayed correctly.

Extra Tips

  • Make sure to handle errors and exceptions properly when rendering images, such as file not found or invalid image files.
  • Consider adding support for other media types, such as videos or audio files, to further enhance the user experience.

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