# ExplainTXT vs Sider

ExplainTXT records 0 monthly visits with 0% month-over-month growth and Freemium pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.

| Metric | [ExplainTXT](https://openaitools.app/tool/explaintxt) | [Sider](https://openaitools.app/tool/sider) |
| :--- | :--- | :--- |
| Website URL | https://explaintxt.com | https://sider.ai |
| Categories | AI Translate, AI Summarizer, AI Text Generator | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 0 | 2,644,740 |
| MoM Growth Rate | 0% | -10.6% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 1,699,535 |
| Review Score | 4.1 | 4.5 |
| Saved Count | 0 | 31 |
| Supported Platforms | Website | Website |

## ExplainTXT

ExplainTXT turns any web page into something you can interrogate. After installing the Chrome extension, a single shortcut (⌘⇧E on Mac, Ctrl+Shift+E on Windows) reads whatever is in front of you. With nothing selected it summarizes the entire page — one line on what it is, followed by the key points. With text highlighted it explains just that passage in plain words and opens a sidebar where you can keep asking follow-up questions.

The workflow is designed to keep you in the text rather than bouncing to another tab or chatbot. Long articles, dense documentation, contracts full of legalese, forum threads and emails all become easier to skim. You can trigger it from the keyboard, from a highlight context menu, or from the toolbar icon, and the shortcut can be rebound at any time in Chrome. A dashboard on explaintxt.com lets you choose your language and text size.

The extension is free to install and monetized through in-app purchases, and the developer notes that mobile browsers do not yet support extensions. The Chrome listing reports version 4.4.0, a 4.2 rating and a few hundred users, positioning ExplainTXT as a lightweight utility for students, researchers, professionals and anyone who reads a lot of dense material online.

**Pricing & Plans:** Free to install with in-app purchases (freemium model). The developer does not publish fixed subscription tiers on the site; payments happen through the Chrome extension's in-app purchase flow.

- **One-shortcut page summaries:** 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.
- **Highlight-to-explain:** Select any term, clause or paragraph and ExplainTXT explains just that part in plain language, right where you are reading.
- **Sidebar follow-up chat:** Answers open in a sidebar so you can ask additional questions about the page without leaving it or opening a separate chatbot tab.
- **Flexible triggers:** Run it from the keyboard shortcut, a highlight context menu, the toolbar icon, or an alternate ⌘⇧S shortcut, and rebind the keys in Chrome.
- **Language and text-size controls:** A dashboard on explaintxt.com lets you set your preferred explanation language and reading text size.

**Strengths:** Zero-friction workflow: one shortcut works on any website without copying text; Sidebar answers keep you in context and allow follow-up questions; Keyboard, mouse and toolbar triggers with rebindable shortcuts; Works across articles, docs, contracts, emails and forums

**Limitations:** No mobile support yet, since mobile browsers do not run extensions; Currency of full feature set depends on the extension, so the website itself is thin; Fixed pricing tiers are not published, only in-app purchases

[Profile (Markdown)](https://openaitools.app/tool/explaintxt.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 ExplainTXT and Sider compare in monthly traffic?

ExplainTXT has 0 monthly visits, while Sider has 2,644,740. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

ExplainTXT has a month-over-month growth rate of 0%; Sider has -10.6%.

### How does pricing compare?

ExplainTXT: Freemium. Free to install with in-app purchases (freemium model). The developer does not publish fixed subscription tiers on the site; payments happen through the Chrome extension's in-app purchase flow. 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) | 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) |
| 5 | [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) |
| 6 | [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) |
| 7 | [Linnk.AI](https://openaitools.app/tool/linnk-ai) | 451,514 | +12.4% | Freemium | Translate, summarize, and understand documents in 154 languages without losing the layout | [.md](https://openaitools.app/tool/linnk-ai.md) |
| 8 | [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) |
| 9 | [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) |
| 10 | [Voilà — AI Assistant, Chat and Writer](https://openaitools.app/tool/voil-chatgpt-browser-assistant) | 152,170 | -4.8% | Freemium | Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools. | [.md](https://openaitools.app/tool/voil-chatgpt-browser-assistant.md) |

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Source: https://openaitools.app/compare/explaintxt-vs-sider

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