According to AlphaMoat, as of 2026-09, the Chrome extension HighlightGPT has 64 users (+3.2% MoM), rated 5 (1 reviews) — ranked #4,980 of 9,324 AI browser extensions, and #1,220 of 2,418 in General AI.
What is HighlightGPT
Explain selected text in seconds using context from any page! Don't understand something? Just highlight it on the page, and HighlightGPT will explain it to you in MERE SECONDS, using mainly content from the page you are on to maximize relevance!
Choose between 3 different levels of context, the more the merrier, of course. Higher values for context will use more text from the page. HighlightGPT generates context with the information surrounding your highlighted text. If the request size is too big, HighlightGPT automatically decreases the page ingest amount!
Requires an OpenAI API key!
HighlightGPT intentionally ignores highlights made by double clicking.
Careful, high values might eat into your OpenAI quota!
HighlightGPT Update v1.1.3
Show the rest of the store description▾
- Upgraded model to gpt-4o
Extension profile
User Growth Trend
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+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.