A better index works for all readers:
The standard EPUB 3 specification supports page-list navigation, but most publishers treat it as an afterthought. Here is why the old model fails: index of epub books better
| Tool | Best for |
|------|----------|
| Sigil (with Index Generator plugin) | Manual creation & fine-tuning |
| Adobe InDesign (export to EPUB) | Auto-generates clickable index from page references—but requires cleanup |
| Calibre + Modify EPUB plugin | Adding/editing indexes in bulk |
| Python script using html.parser + BeautifulSoup | Custom conversion from print index to linked EPUB index | A better index works for all readers: The
Recommended simple workflow: