RecollectViewer ver.1.4 - Unified AI Chat History Viewer & Search

[Overview]
Search and browse your ChatGPT, Gemini, and Claude chat history locally — offline and private.
A dedicated Windows viewer that helps you find past AI conversations in seconds.

Load official export JSON from ChatGPT, Gemini, and Claude into one app.
Full-text search, tree navigation, and one-click jump from search results to the original conversation.
No data is sent to any external server.

Japanese and English UI are supported (auto-selected by OS language; override with RECOLLECTVIEWER_LOCALE).

[Who is this for?]
- Users who want to reuse code or prompts written by AI, but struggle to find the right conversation
- Users who switch between ChatGPT, Gemini, and Claude and lose track of past chats
- Users who want to keep AI conversations as a personal knowledge asset on their own PC

[Highlights]
- Cross-AI viewer for ChatGPT, Gemini, and Claude in one window
- Fully offline and privacy-focused (no network calls while using the app)

[Main features]
- Tree view tailored to each AI
  - ChatGPT / Claude: Year-Month → Chat → Prompts
  - Gemini: Year → Month → Day (date-based, due to Takeout format)
- Cross-AI full-text search (AND keywords with spaces)
- Advanced search (7 filters): scope, target AI, code-only, files/images, date range, exclude keywords
- Jump from search results to the matching tree conversation
- Markdown rendering and syntax highlighting
- One-click copy for code blocks
- Open attachments when the export ZIP actually includes the files
  (Claude attachments are not included in Anthropic’s official export — see Limitations)
- Second Opinion: export the current conversation as text and hand it off to another AI in one click for a different perspective

[Prepare your data]
Export official history data (JSON) from each service:

- ChatGPT: Settings → Data controls → Export data
- Gemini: Google Takeout → My Activity → Gemini Apps → JSON
- Claude: Settings → Privacy → Export data → use conversations.json from the ZIP

See the product page for step-by-step guides.

[System requirements]
- OS: Windows 10 / 11
- .NET Framework 4.7.2 or later
- Microsoft Edge WebView2 Runtime (install separately if missing)

[License / Terms]
Free for personal and commercial use.
Prohibited: using this software to view, monitor, or analyze other people’s data without permission.

[Disclaimer]
Provided as-is. The developer accepts no liability for damages or issues arising from use.
No warranty or support obligation.

[Limitations]
Based on each provider’s official export format:

1. ChatGPT conversation branches
   Only one representative linear path is shown when chats were edited/regenerated.

2. Attachments / generated images
   Files open only when included in the export ZIP.
   Claude’s official export does not include attachment binaries; Claude attachment preview/search is not supported.

3. Gemini tree structure
   Takeout data has no stable chat-thread IDs, so history is shown by date, not as ChatGPT-style threads.

4. Deep Research
   ChatGPT Deep Research results are not supported. Gemini is supported.

5. Claude extended thinking
   Thinking/reasoning blocks in Claude exports are excluded from display and search; only the final answer text is shown.

[Install]
Extract RecollectViewer.zip anywhere (portable; no installer).

[Uninstall]
Delete the extracted folder. No registry entries are created.

[Homepage]
https://www.yasui-kamo.com/labo/recollectviewer/

[Japanese documentation]
See readme.txt for the Japanese documentation.
