
A free, AI-powered academic search engine for 240M+ papers across every scientific field
A free, AI-powered academic search engine for 240M+ papers across every scientific field
ExplainPaper records 26,016 monthly visits with -39.3% month-over-month growth and Freemium pricing. SpecsPlain records 0 monthly visits with — growth and Free pricing.

Turn TC39 spec algorithms into plain-English explanations
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | explainpaper.com | chrome.google.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 26.02K (26,016) | 0 (0) |
| MoM Traffic Delta | -16.81K (-39.3%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (28.1%) | 🌐 Global (—) |
| Direct Visits / mo | 9.69K | 0 |
| User Rating | 4 | 1.8 |
| Supported Platforms | Website | Browser Extension |
Highlight dense research text and get plain-language explanations instantly
Select any confusing sentence or term and receive an immediate plain-language explanation that accounts for the rest of the paper.
Shift the reading level from beginner-friendly to expert-detail so the explanation matches your background.
Ask questions and get answers grounded in the document's actual content, with references back to the relevant sections.
Produce a smart outline, key-point extraction, and concept relationship views without reading the entire paper first.

Turn TC39 spec algorithms into plain-English explanations
Adds an Explain control to the specification document so you can request an explanation without switching tabs or tools.
Uses Google's PaLM AI to convert formal spec algorithms into readable, step-by-step descriptions.
Tuned for the ECMAScript specification, turning dense algorithmic text into something a developer can follow quickly.
Generates an explanation of what each step in an algorithm does, rather than restating the formal notation.

A free, AI-powered academic search engine for 240M+ papers across every scientific field
A free, AI-powered academic search engine for 240M+ papers across every scientific field

AI research platform for reading, understanding and writing scientific papers
AI research platform for reading, understanding and writing scientific papers
One-click AI assistant for browsing, writing and research
One-click AI assistant for browsing, writing and research
Chat with any PDF, video, or website and get cited answers in seconds
Highlight the web, learn in public, and build your AI clone
Highlight the web, learn in public, and build your AI clone

Map the literature around the papers you love—free
Map the literature around the papers you love—free
Explore the academic literature as a visual graph of related papers
Explore the academic literature as a visual graph of related papers
One browser agent that combines every major AI model with web automation

Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Summarize, bookmark and write with AI right in your browser
Summarize, bookmark and write with AI right in your browser

Screen thousands of papers down to the studies that matter
Screen thousands of papers down to the studies that matter
AI-powered platform to read, write, and stay current with research