ExplainTXT records 0 monthly visits with 0% month-over-month growth and Freemium pricing. Semantic Scholar records 8,198,672 monthly visits with +5.8% growth and Free pricing.
Highlight text. Ask AI. Instant summaries and explanations on any page.
A free, AI-powered academic search engine for 240M+ papers across every scientific field
| Dimension / Metric | | |
|---|---|---|
| Official Domain | explaintxt.com | semanticscholar.org |
| Pricing Model | Freemium | Free |
| Monthly Visits | 0 (0) | 8.2M (8,198,672) |
| MoM Traffic Delta |
| 0 (0%) |
| +450.65K (+5.8%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (22.9%) |
|---|
| Direct Visits / mo | 0 | 1.88M |
|---|
| User Rating | 4.1 | 4.8 |
|---|
| Supported Platforms | Website | Website |
|---|
Highlight text. Ask AI. Instant summaries and explanations on any page.
Press ⌘⇧E (Ctrl+Shift+E on Windows) with nothing selected to get a concise summary of the whole page, led by a one-line gist and then the key points.
Select any term, clause or paragraph and ExplainTXT explains just that part in plain language, right where you are reading.
Answers open in a sidebar so you can ask additional questions about the page without leaving it or opening a separate chatbot tab.
Run it from the keyboard shortcut, a highlight context menu, the toolbar icon, or an alternate ⌘⇧S shortcut, and rebind the keys in Chrome.
A free, AI-powered academic search engine for 240M+ papers across every scientific field
Search 241 million-plus publications from every scientific field using natural-language queries that match meaning rather than exact keywords.
Each indexed paper gets a one-sentence machine-generated TLDR so you can triage results before committing to reading the full text.
An augmented PDF reader that highlights citations, definitions, equations and figures inline, and shows which later papers cited the passage you are reading.
See how a paper was cited, whether citations were influential, and which references shaped the work — useful for literature reviews and citation chasing.
SpecialistBroader real-time web search capabilities with academic filters, but less specialized for deep bibliographic citation analysis than Semantic Scholar.
Synthesizes direct evidence-based answers from scientific papers, but has a less comprehensive raw database than Semantic Scholar.
#2
All-in-one AI assistant across web, browser, desktop and mobile
Offers an immersive AI reading and PDF analysis workspace, but is less focused on pure bibliographic search.
AI sidebar and browser agent for reading, writing and research
Excels at automated systematic review data extraction and evidence synthesis, but indexes a narrower slice of literature.
Highlight the web, learn in public, and build your AI clone
SpecialistProvides advanced Smart Citations showing how papers support or dispute each other, but has a smaller overall index.
SpecialistFeatures excellent visual citation collections and literature tracking recommendations, but lacks inline paper summarization features.
SpecialistOffers superior visual graph mapping of academic paper connections, but lacks traditional keyword search and full-text reading tools.
Translate, summarize, and understand documents in 154 languages without losing the layout
AI-native workspace for literature reviews and auditable systematic reviews
SpecialistBroader real-time web search capabilities with academic filters, but less specialized for deep bibliographic citation analysis than Semantic Scholar.
Synthesizes direct evidence-based answers from scientific papers, but has a less comprehensive raw database than Semantic Scholar.
All-in-one AI assistant across web, browser, desktop and mobile
Offers an immersive AI reading and PDF analysis workspace, but is less focused on pure bibliographic search.
AI sidebar and browser agent for reading, writing and research
Excels at automated systematic review data extraction and evidence synthesis, but indexes a narrower slice of literature.
Highlight the web, learn in public, and build your AI clone
SpecialistProvides advanced Smart Citations showing how papers support or dispute each other, but has a smaller overall index.
SpecialistFeatures excellent visual citation collections and literature tracking recommendations, but lacks inline paper summarization features.
SpecialistOffers superior visual graph mapping of academic paper connections, but lacks traditional keyword search and full-text reading tools.
Translate, summarize, and understand documents in 154 languages without losing the layout
AI-native workspace for literature reviews and auditable systematic reviews
