# Sider vs Text Assistant

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

| Metric | [Sider](https://openaitools.app/tool/sider) | [Text Assistant](https://openaitools.app/tool/text-assistant) |
| :--- | :--- | :--- |
| Website URL | https://sider.ai | https://chrome.google.com/webstore/detail/text-assistant/jglecadoijaoddgfadfodbfamemmoald |
| Categories | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader | AI Assistant, Large Language Models (LLMs), AI Proofreading, AI Text Generator |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 2,644,740 | 0 |
| MoM Growth Rate | -10.6% | — |
| Primary Market | United States | Global |
| Direct Visits | 1,699,535 | 0 |
| Review Score | 4.5 | 1.7 |
| Saved Count | 31 | 0 |
| Supported Platforms | Website | Browser Extension |

## 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)

## Text Assistant

Text Assistant is a Chrome extension for people who want OpenAI's models available anywhere they read or write on the web. Rather than switching to a chat tab, you select text on the page and invoke the extension to get explanations, grammar and spelling corrections, or a ready-to-send reply.

Its most distinctive feature is chart creation: you can select structured text and have the model return a chart, which turns pasted numbers or lists into a quick visual without a spreadsheet. The other parts of the workflow cover comprehension and writing quality, so it works as a general-purpose reading and drafting aid.

Text Assistant is bring-your-own-key. You sign up for an OpenAI API key, paste it into the extension settings, and then pay OpenAI for what you use. The extension itself is free, published by an individual developer, and last updated in 2023, so its feature set is simple rather than expansive.

**Pricing & Plans:** Free to add from the Chrome Web Store. Access to the AI features requires your own OpenAI API key, and OpenAI bills you directly for usage.

- **Explain selected text:** Highlight any confusing passage and ask the model to explain it in plain language.
- **Proofreading and suggestions:** Get grammar, spelling, and clarity suggestions on a selection so your writing reads correctly.
- **Reply generation:** Generate a natural-language reply to a message or email based on the text you selected.
- **Chart creation:** Turn selected data or list text into a simple chart to visualize it quickly.
- **Bring your own API key:** Your OpenAI API key is entered in the extension settings so all requests run through your own account.

**Strengths:** Explains, proofreads, replies, and charts from a single selection; Works on any web page without leaving the tab; Free extension with no subscription of its own; Simple setup: add your OpenAI key and start selecting text

**Limitations:** Requires an OpenAI API key and a separate OpenAI account/billing; Last updated in April 2023 and still at version 0.2; No user ratings and a modest install base; English-only interface and limited built-in formatting options

[Profile (Markdown)](https://openaitools.app/tool/text-assistant.md)

## Frequently Asked Questions

### How do Sider and Text Assistant compare in monthly traffic?

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

### How do their growth rates compare?

Sider has a month-over-month growth rate of -10.6%; Text Assistant has —.

### How does pricing compare?

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. Text Assistant: Freemium. Free to add from the Chrome Web Store. Access to the AI features requires your own OpenAI API key, and OpenAI bills you directly for usage.

## 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 | [Grammarly](https://openaitools.app/tool/grammarly) | 58,867,412 | -1.5% | Freemium | Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides. | [.md](https://openaitools.app/tool/grammarly.md) |
| 4 | [LanguageTool](https://openaitools.app/tool/languagetool) | 5,707,795 | -4.2% | Freemium | AI grammar, spelling and style checker for 30+ languages | [.md](https://openaitools.app/tool/languagetool.md) |
| 5 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | All-in-one AI assistant across web, browser, desktop and mobile | [.md](https://openaitools.app/tool/monica-ai.md) |
| 6 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | One-click AI assistant for browsing, writing and research | [.md](https://openaitools.app/tool/merlin-ai.md) |
| 7 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | One browser agent that combines every major AI model with web automation | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 8 | [HyperWrite](https://openaitools.app/tool/hyperwrite-ai) | 255,429 | +34.4% | Freemium | AI writing assistant with autocomplete, research, and a Chrome extension | [.md](https://openaitools.app/tool/hyperwrite-ai.md) |
| 9 | [Linguix](https://openaitools.app/tool/linguix) | 227,398 | -4.5% | Freemium | AI grammar checker and writing assistant for teams and professionals | [.md](https://openaitools.app/tool/linguix.md) |
| 10 | [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) |

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Source: https://openaitools.app/compare/sider-vs-text-assistant

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