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+[![](https://deepwiki.com/badge.svg)](https://deepwiki.com/ccleberg/crumb)
+
+Crumb is a local-only browser history tracker. It consists of two parts:
+a WebExtension-based browser plugin and a local HTTP server. Crumb logs
+each visited web page to a plaintext file in Org-mode format.
+
+# Components
+
+- Browser extension (WebExtension API, JavaScript)
+- Local HTTP listener (Python + Flask)
+- Plaintext log file (~/.crumb/history.log)
+
+# Functionality
+
+Each time a page is loaded in the browser, the extension sends the page
+metadata to the local server. The server appends this data to a
+structured log file.
+
+Data captured per page:
+
+- Page title
+- URL
+- Timestamp (UTC)
+- Hostname
+- Path
+- Optional: query string, tab ID, window ID, favicon URL
+
+The log is formatted as an Org-mode file, with one top-level heading per
+visit and standard `:PROPERTIES:` metadata.
+
+# Requirements
+
+- Python 3.x
+- Flask
+- A Chromium-based or Firefox browser with extension developer mode
+  enabled
+
+# Usage
+
+1.  Start the local listener:
+
+    ``` shell
+    python3 -m venv venv
+    source ./venv/bin/activate
+    pip install -r requirements.txt
+    python server.py
+    ```
+
+2.  Load the extension into your browser:
+
+    - Enable Developer Mode
+    - Load the `crumb_extension/` directory
+
+3.  Browse the web. Entries will appear in `~/.crumb/history.org`
+
+4.  Search the log using:
+
+    ``` shell
+    python search.py <term>
+    ```
+
+# Example Log Entry
+
+``` org
+* Example Domain
+:PROPERTIES:
+:URL:       http://example.com
+:TIMESTAMP: 2025-06-04T20:31:01.123456
+:HOST:      example.com
+:PATH:      /
+:TAB:       143
+:WINDOW:    1
+:FAVICON:   https://example.com/favicon.ico
+:END:
+```
+
+# Preview Images
+
+Screenshots of Crumb in use.
+
+<figure>
+<img src="./screenshots/devtools.png" />
+<figcaption>Developer Console Output</figcaption>
+</figure>
+
+<figure>
+<img src="./screenshots/history.png" />
+<figcaption>Org-Mode History Log</figcaption>
+</figure>
+
+<figure>
+<img src="./screenshots/search.png" />
+<figcaption>Search Utility in Terminal</figcaption>
+</figure>
+
+# Limitations
+
+- Browser extensions cannot write files directly; communication requires
+  the local server.
+- History is stored in plaintext and is not encrypted. You can bolt-on a
+  third-party encryption tool, if required.
+- Data is stored locally and is never transmitted externally.
+
+# License
+
+GPL 3.0 License. See LICENSE file.