# JustSummarized vs Sider JustSummarized records 0 monthly visits with — month-over-month growth and Free pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing. | Metric | [JustSummarized](https://openaitools.app/tool/justsummarized) | [Sider](https://openaitools.app/tool/sider) | | :--- | :--- | :--- | | Website URL | https://chromewebstore.google.com/detail/justsummarized/adgpelkikkemeijopnceihiekbaekdfe | https://sider.ai | | Categories | AI Summarizer, AI Article Summarizer, AI PDF Summarizer, AI Youtube Summary | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader | | Pricing Model | Free | Freemium | | Monthly Visits | 0 | 2,644,740 | | MoM Growth Rate | — | -10.6% | | Primary Market | Global | United States | | Direct Visits | 0 | 1,699,535 | | Review Score | 4.4 | 4.5 | | Saved Count | 0 | 31 | | Supported Platforms | Browser Extension | Website | ## JustSummarized JustSummarized targets the everyday problem of content overload. Instead of opening a long article, a dense PDF report or an hour-long video and reading or watching the whole thing, you click the extension's toolbar icon and get a condensed summary in seconds. The extension handles three main content types: ordinary web pages such as articles, blogs and news, PDF documents including academic papers, eBooks and reports, and YouTube videos, which it turns into quick highlights useful for tutorials, lectures and webinars. Beyond straight summarization it adds an interactive Q&A mode. After generating a summary you can ask specific questions about the underlying content and get targeted answers, which is far more efficient than re-reading the source. The extension advertises multi-language output, summarising and translating content across 50+ languages, and states that processing happens locally on your device with no tracking or personal data storage. The listing describes support for Chrome plus Firefox, Edge and Safari, and says it is powered by a mix of models including ChatGPT, Claude, Google Gemini and DeepSeek. The Chrome Web Store version is 1.0.0.3, last updated in January 2025, carries a 4.8 rating from 16 ratings and has a modest install base. It is free to install, and the store listing notes that the extension offers in-app purchases, so some features may sit behind a paid unlock. **Pricing & Plans:** 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. - **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. - **50+ language support:** Summarize and translate content across more than 50 languages. **Strengths:** 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 **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 [Profile (Markdown)](https://openaitools.app/tool/justsummarized.md) ## Sider Sider's premise is that you should not have to leave the page you are reading to use an AI assistant. Its sidebar overlays the browser, detects the content in view, and responds with chat, summaries, translations or explanations using frontier models from multiple providers. The result is a lightweight research and reading workflow: highlight a paragraph, ask for a simpler explanation, translate a PDF and keep the original in sight. Recent versions push Sider beyond chat. Sider Hand is a browser agent that works across real websites and uses your logged-in sessions to carry out multi-step jobs such as comparing prices while shopping, filling forms, doing cross-site research or triaging a Gmail inbox. Sider Code goes the other way, letting you instruct changes to a website's appearance or behaviour in plain language and preserving the customisation for next time. A Create module generates images, videos, slides and documents from the same panel. Pricing moves from a limited free tier to credit-based paid plans aimed at heavier users. Lower plans suit occasional chat, summarisation and translation, while higher tiers add a dedicated cloud computer that keeps the browser agent running around the clock and a larger monthly credit allowance. Sider ships as browser extensions for Chrome and Edge plus desktop and mobile apps for macOS, Windows, iOS and Android, and is used by a very large installed base. **Pricing & Plans:** Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans. - **AI sidebar on any page:** A persistent panel that reads the page you are on and answers follow-ups with GPT, Claude or Gemini without copying content into another tab. - **Summarise and chat with documents:** Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material. - **Translation and read-aloud:** Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move. - **Sider Hand browser agent:** Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions. - **Sider Code page customisation:** Describe a change in plain words and have Sider restyle or simplify any website, remembering the modification for future visits. **Strengths:** Works inside the browser you already use, with no context switching; Access to multiple frontier models from one subscription; Strong reading toolkit: PDF chat, YouTube summaries, translation and read-aloud; Increasingly capable agent features for multi-step browser tasks **Limitations:** Useful credits run out quickly on the free and lower tiers; Model availability and quota rules change over time, so expectations must be checked per plan; Some agent and code features depend on a cloud machine and heavier plans [Profile (Markdown)](https://openaitools.app/tool/sider.md) ## Frequently Asked Questions ### How do JustSummarized and Sider compare in monthly traffic? JustSummarized has 0 monthly visits, while Sider has 2,644,740. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? JustSummarized has a month-over-month growth rate of —; Sider has -10.6%. ### 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. Sider: Freemium. Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | [.md](https://openaitools.app/tool/chatgpt-4.md) | | 2 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | [.md](https://openaitools.app/tool/claude-2.md) | | 3 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools. | [.md](https://openaitools.app/tool/monica-ai.md) | | 4 | [Merlin AI](https://openaitools.app/tool/merlin-ai-plugins) | 1,382,634 | +13.1% | Freemium | One AI assistant that plugs ChatGPT, Claude and Gemini into every tab | [.md](https://openaitools.app/tool/merlin-ai-plugins.md) | | 5 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features. | [.md](https://openaitools.app/tool/merlin-ai.md) | | 6 | [Readray (formerly Lilys AI)](https://openaitools.app/tool/lilys-ai) | 967,113 | -9.7% | Freemium | A proactive AI reading lens for papers, videos, and web pages | [.md](https://openaitools.app/tool/lilys-ai.md) | | 7 | [Glasp](https://openaitools.app/tool/glasp) | 889,564 | -14.1% | Freemium | Highlight the web, learn in public, and build your AI clone | [.md](https://openaitools.app/tool/glasp.md) | | 8 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider. | [.md](https://openaitools.app/tool/harpa-ai.md) | | 9 | [Glarity](https://openaitools.app/tool/glarity-summarize-google-and-youtube) | 188,823 | -49.6% | Freemium | Summarize YouTube, Google, and any page with AI — free in your browser | [.md](https://openaitools.app/tool/glarity-summarize-google-and-youtube.md) | | 10 | [Kome AI](https://openaitools.app/tool/kome-ai) | 174,910 | -6.5% | Freemium | Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider. | [.md](https://openaitools.app/tool/kome-ai.md) | --- Source: https://openaitools.app/compare/justsummarized-vs-sider More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)