Text Highlighter & Annotation

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Use the CSS Custom Highlight API to style arbitrary text ranges without modifying the DOM. See the future of find‑in‑page.

Developer Tools CSS Custom Highlight API demo highlight

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Paste text with highlights (e.g., from Apple Books) and extract only the highlighted lines. Save as list.

Extractor extract highlight text

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Combine TTS with text highlighting. See each word colored as it is spoken. For e‑learning content creation. Local.

Educational audio emphasis highlight TTS

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Paste any text and have it read aloud while each spoken word is highlighted. Improve reading focus. Web Speech API.

Accessibility highlight read aloud speech TTS

Tag: Text Highlighter & Annotation