Here’s a clean, developer‑friendly README.md for your Skype/Teams Log Viewer — written to match the architecture we built together, without exposing anything internal or proprietary. It explains the tool, its features, and how to use it, while staying concise and readable.

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Skype / Teams Log Viewer

A standalone, browser‑based viewer for exploring and exporting Skype/Teams chat history from a messages.json export.
No backend. No dependencies. Just open the HTML file and load your data.

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✨ Features

📂 Load & Explore Conversations

• Load a messages.json export directly in the browser.
• Conversations automatically grouped into:
  • People
  • Groups
  • Bots & Services
  • System & Special
• Long conversation IDs wrapped cleanly.
• System threads (e.g., 19:…@cast.skype) auto‑collapsed.

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🗂 Export Mode

Toggle Export Mode to enable selective export of conversations, participants, and messages.

Conversations

• Sidebar checkboxes appear for each conversation.
• Select All / Select None buttons.
• Unselected conversations show an “Excluded” notice when opened.

Participants

• Sticky participant bar at the top of the chat.
• Select All / Select None buttons.
• Per‑participant checkboxes.
• Hides messages from unchecked participants immediately.
• Selection state remembered per conversation.

Messages

• Sticky message bar under the participant bar.
• Select All / Select None buttons.
• Each message gets a checkbox (for export only; visibility unaffected).
• Selection state remembered per conversation.

Export

Two export buttons:

• Export Selected (this chat)
• Export Selected (all chats)

Exports a filtered messages.json containing only:

• selected conversations
• selected participants
• selected messages

Selections are stored as a compact “diff from default” for efficiency.

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📅 Vertical Adaptive Timeline

A non‑scrolling, clickable timeline beside the chat:

• Automatically adjusts resolution:
  • Day → Week → Month → Year
• Each box represents a time bucket with color‑coded density.
• Clicking a box scrolls the chat to that date.
• Always visible, never modal.

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💬 Rich Message Rendering

The viewer understands and renders Skype/Teams message types:

System Events

• Topic changes
• Member additions
• Thread activity

Rendered as clean system cards.

Media & Files

• <MediaAlbum> → album card
• <URIObject> → file card with size + link

Bing / Copilot Responses

• <bing-response> rendered as assistant cards.

Metadata Stripping

• <context><location encrypted="…"> blocks removed automatically.

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🧭 Navigation

• Sticky participant/message bars gain a subtle shadow when scrolling.
• Date separators inserted automatically.
• Messages from your own account highlighted.

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🛠 How to Use

1. Open skype-log-viewer.html in any modern browser.
2. Click Load Export and select your messages.json.
3. Browse conversations normally.
4. Toggle Export Mode to filter and export.

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📁 File Structure

This tool is a single self‑contained HTML file:

• No external libraries
• No build step
• No server required

Just open and use.

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🔒 Privacy

All processing happens locally in your browser.
No data is uploaded or transmitted anywhere.

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Licensing: CC-BY-NC. ©2026 Andrew Kingdom, all rights reserved.