How do their growth rates compare?

JustSummarized has a month-over-month growth rate of —; LightPDF has -15.3%.

How does pricing compare?

JustSummarized: Free. Free to install from the Chrome Web Store. The store listing notes the extension offers in-app purchases, which suggests optional paid upgrades may exist, but the core summarization features are available at no cost. LightPDF: Freemium. Freemium. A free plan covers basic PDF tools with a 10MB file cap; paid plans start around $5.99/month, with a yearly tier and a one-time lifetime option. AI features consume monthly credits that differ by plan.

What are alternatives to JustSummarized and LightPDF?

Other tools in related categories include ChatGPT, Claude, DeepL, PDFgear, PDNob PDF Editor.

Head-to-Head Benchmark

JustSummarized vs LightPDF

JustSummarized records 0 monthly visits with — month-over-month growth and Free pricing. LightPDF records 1,742,568 monthly visits with -15.3% growth and Freemium pricing.

JustSummarizedFree

Summarize web pages, PDFs and YouTube videos in one click

Monthly Visits

0

MoM Velocity

—

Top Market

🌐 Global

View JustSummarized Analysis

chromewebstore.google.com

LightPDFFreemiumTraffic Leader

Free AI-powered PDF editor, converter and reader for every device

Monthly Visits

1.74M

MoM Velocity

-15.3%

Top Market

🇮🇳 India

View LightPDF Analysis lightpdf.com

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	JustSummarized	LightPDF
Official Domain	chromewebstore.google.com	lightpdf.com
Pricing Model	Free	Freemium
Monthly Visits	0 (0)	1.74M (1,742,568)

MoM Traffic Delta	0 (—)	-314.58K (-15.3%)

Primary Market & Share	🌐 Global (—)	🇮🇳 India (24.9%)

Direct Visits / mo	0	442.07K

User Rating	4.4	4.2

Supported Platforms	Browser Extension	Website

JustSummarized

Summarize web pages, PDFs and YouTube videos in one click

One-click web page summaries

Condense articles, blogs and news pages into a short, readable summary without leaving the tab.

PDF summarizer

Extract the key points from academic papers, eBooks and long reports rather than reading them end to end.

YouTube video summaries

Turn long videos, lectures and webinars into quick highlights you can scan in seconds.

AI-powered Q&A

Ask specific questions about any summarized page, PDF or video and get precise answers drawn from that content.

Strengths & Pros

+Handles three formats in one extension: web pages, PDFs and YouTube videos
+Follow-up Q&A lets you interrogate the content instead of re-reading it
+Multi-language summarization and translation across 50+ languages
+Free to install with a solid 4.8 user rating
+Stated to work on Chrome as well as Firefox, Edge and Safari

Frequently Asked Questions: JustSummarized vs LightPDF

JustSummarized has 0 monthly visits, while LightPDF has 1,742,568. Traffic estimates describe audience size, not product quality.

More Head-to-Head Matchups

ChatGPT vs JustSummarized

6.05B visits/mo

ChatGPT vs LightPDF

6.05B visits/mo

Claude vs JustSummarized

1.25B visits/mo

Claude vs LightPDF

1.26B visits/mo

DeepL vs JustSummarized

95.11M visits/mo

DeepL vs LightPDF

96.85M visits/mo

Best Alternatives to JustSummarized & LightPDF (12)

Limitations

–Modest install base, reflecting a smaller, less-proven user community
–Chrome Web Store version has not been updated since January 2025
–Listing mentions in-app purchases, so not every feature is guaranteed free

LightPDF

Free AI-powered PDF editor, converter and reader for every device

AI document agent and chat

Upload a PDF and ask questions in natural language, follow up on details and see which passages the answers came from. A separate chat mode works with YouTube videos.

Layout-preserving translation

Translate whole documents, including scanned and image-based PDFs, into 20+ languages while keeping the original formatting and layout intact.

AI data extraction to spreadsheets

Convert invoices, receipts, bank statements and purchase orders into structured, editable Excel files automatically.

Full PDF editing and conversion suite

Edit text and images, OCR scanned pages, convert to and from Office formats, then merge, split, compress, watermark, sign and annotate.

Strengths & Pros

+Very broad toolkit that covers both everyday PDF chores and advanced AI document tasks
+Free tier is usable for light jobs, and the paid plans are cheaper than many competing PDF editors
+Layout-preserving translation and AI data extraction handle scanned documents that trip up simpler tools
+One subscription covers five platforms, including desktop and mobile apps

Limitations

–Free plan caps files at 10MB and adds watermarks on some outputs
–AI features run on a credit system, so heavy usage means top-ups or a higher tier
–Advanced AI operations like text editing or logo removal consume credits quickly

01

ChatGPT

6B/mo

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

AI ChatbotFreemium+2.2%

02

Claude

1.3B/mo

SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

AI AssistantFreemium+23.8%

#2

03

DeepL

95.1M/mo

SpecialistEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.

AI TranslateFreemium63% direct

#3

04

PDFgear

2.8M/mo

Offers a completely free PDF editing and AI assistant experience, but lacks some of LightPDF's cloud-native collaboration features.

AI PDFFree24% direct

PDFgear editor interface showing PDF text editing and AI chat panel

05

PDNob PDF Editor

2.4M/mo

Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms.

AI PDF EditorFreemium, Free Trial, Paid+1.2%

Screenshot of PDNob PDF Editor editing a PDF with the AI summary panel open

06

Merlin AI

1.4M/mo

One AI assistant that plugs ChatGPT, Claude and Gemini into every tab

AI AssistantFreemium+13.1%

Screenshot of the Merlin AI Chrome extension summarizing an article with multiple AI models available

07

pdf.net

1.3M/mo

Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant.

AI SummarizerFreemium, Free14% direct

Screenshot of the pdf.net dashboard with numbered tools for editing, converting and signing PDF documents

08

UPDF AI

1.1M/mo

Provides a more polished cross-platform desktop PDF editing suite, but requires a paid upgrade for full AI features.

AI PDFFreemium, Free Trial, Paid19% direct

Screenshot of UPDF AI showing a summarised PDF beside the document and AI chat panel

09

ChatPDF

1M/mo

Offers a streamlined conversational interface for querying PDFs, but provides fewer document editing and conversion utilities.

AI PDFFreemium44% direct

Screenshot of ChatPDF with an uploaded research paper and a chat thread containing answers linked to source pages

10

Readray (formerly Lilys AI)

967.1K/mo

A proactive AI reading lens for papers, videos, and web pages

AI SummarizerFreemium45% direct

Readray showing an AI summary of a research paper with cited source references

11

Glasp

889.6K/mo

Highlight the web, learn in public, and build your AI clone

AI Research ToolFreemium45% direct

Glasp library showing highlights with notes, tags and AI-generated summaries

12

PDF.ai

387.8K/mo

Excels at developer API integration and chatting with PDFs, but lacks comprehensive traditional PDF editing tools.

AI PDFFreemium, Free Trial33% direct

#1

Visit

ChatGPT

6B/mo+2.2%

Official

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

AI Chatbot73% direct

Freemium

Visit

Claude

1.3B/mo+23.8%

Official

SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

AI Assistant72% direct

Freemium

Visit

DeepL

95.1M/mo

Official

SpecialistEnterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.

AI Translate63% direct

Freemium

Visit

PDFgear

2.8M/mo

Offers a completely free PDF editing and AI assistant experience, but lacks some of LightPDF's cloud-native collaboration features.

AI PDF24% direct

Free

Visit

PDNob PDF Editor

2.4M/mo+1.2%

Official

Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms.

AI PDF Editor22% direct

Freemium, Free Trial, Paid

Visit

Merlin AI

1.4M/mo+13.1%

One AI assistant that plugs ChatGPT, Claude and Gemini into every tab

AI Assistant50% direct

Freemium

Visit

pdf.net

1.3M/mo

Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant.

AI Summarizer14% direct

Freemium, Free

Visit

UPDF AI

1.1M/mo

Official

Provides a more polished cross-platform desktop PDF editing suite, but requires a paid upgrade for full AI features.

AI PDF19% direct

Freemium, Free Trial, Paid

Visit

ChatPDF

1M/mo

Official

Offers a streamlined conversational interface for querying PDFs, but provides fewer document editing and conversion utilities.

AI PDF44% direct

Freemium

Visit

Readray (formerly Lilys AI)

967.1K/mo

Official

A proactive AI reading lens for papers, videos, and web pages

AI Summarizer45% direct

Freemium

Visit

Glasp

889.6K/mo

Highlight the web, learn in public, and build your AI clone

AI Research Tool45% direct

Freemium

Visit

PDF.ai

387.8K/mo

Excels at developer API integration and chatting with PDFs, but lacks comprehensive traditional PDF editing tools.

AI PDF33% direct

Freemium, Free Trial

JustSummarized vs LightPDF

Side-by-Side Traffic & Specification Matrix

JustSummarized

Strengths & Pros

Frequently Asked Questions: JustSummarized vs LightPDF

How do JustSummarized and LightPDF compare in monthly traffic?

How do their growth rates compare?

How does pricing compare?

What are alternatives to JustSummarized and LightPDF?

More Head-to-Head Matchups

Best Alternatives to JustSummarized & LightPDF (12)

Limitations

LightPDF

Strengths & Pros

Limitations