How to Compare HTML Bookmarks Quickly and Accurately

python
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# parse both bookmark HTML files with BeautifulSoup
# extract entries: {url, title, path}
# normalize urls and titles
# compute sets and differences

Heuristics for matching

• Exact URL match → same bookmark (check title/path for changes).
• Title match but different URL → possible update; verify manually.
• Same URL in different path → moved bookmark.
• Minor URL differences (http vs https, trailing slash, utm params) → normalize and treat as same.

Tips

• Always work on exported copies; keep originals backed up.
• Normalize before comparing to reduce false positives (remove tracking params, sort attributes).
• Use automated scripts for large bookmark collections.
• Review uncertain matches manually.

Quick checklist

• Export both sets as HTML.
• Normalize and parse entries.
• Use a diff tool or script to detect adds/removes/changes/moves.
• Manually verify ambiguous cases.