# Sider vs SummifyYT (Summarize YouTube Comments)

Sider records 2,644,740 monthly visits with -10.6% month-over-month growth and Freemium pricing. SummifyYT (Summarize YouTube Comments) records 0 monthly visits with — growth and Free pricing.

| Metric | [Sider](https://openaitools.app/tool/sider) | [SummifyYT (Summarize YouTube Comments)](https://openaitools.app/tool/summifyyt) |
| :--- | :--- | :--- |
| Website URL | https://sider.ai | https://chrome.google.com/webstore/detail/summifyyt-summarize-youtu/mcjgidambippeaajehcfimmephgholco |
| Categories | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader | AI Youtube Summary, AI Summarizer, AI Chatbot, AI Assistant |
| Pricing Model | Freemium | Free |
| 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 | 1.9 |
| Saved Count | 31 | 4 |
| 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)

## SummifyYT (Summarize YouTube Comments)

SummifyYT is a browser extension for people who want to understand how an audience reacted to a video without manually reading through a comment thread that may run to thousands of entries. It embeds directly into the YouTube watch page, adds a summary button to the interface, and returns a short digest of the comment section covering the points viewers repeat, praise, or push back on.

Unlike many summarizers that charge for API usage, SummifyYT leans on the ChatGPT session already active in your browser. That design keeps the tool free, but it also means you need to be logged in to ChatGPT for it to work at all. The extension exposes a small settings panel where you can switch on GPT-4, toggle auto-start so a summary is generated the moment a watch page loads, and pick the language you want the summary written in.

The extension has been on the Chrome Web Store for years and is small (roughly 140 KB). Development has slowed — the last published update dates to April 2023 — and the rating sits at a modest 2.8 out of 5. It remains a functional, free option for a quick read on a comment section, especially for creators and researchers triaging audience feedback at scale.

**Pricing & Plans:** Completely free. The extension itself costs nothing and has no in-app purchases; it reuses your existing ChatGPT account, so any costs are whatever your ChatGPT plan already covers.

- **Comment section summarization:** Turns a long YouTube comment thread into a short, readable digest of the main points viewers are making.
- **Embedded on the watch page:** Adds its controls directly to YouTube's UI, so you can trigger a summary without leaving the video you are watching.
- **Language selection:** Lets you choose which language the generated summary is written in, useful for multi-language audiences.
- **GPT-4 toggle and auto-start:** An optional setting switches summarization to GPT-4, and another can fire the summary automatically whenever a watch page loads.
- **Uses your ChatGPT session:** No separate API key or subscription — the extension works through the ChatGPT login you already have in the browser.

**Strengths:** Free to use with no subscription or API key; Lives inside YouTube, so no copy-pasting links between tools; Adjustable summary language and a GPT-4 option; Very small download size and quick to install

**Limitations:** Requires you to be signed in to ChatGPT, so it is unusable without an account; Last updated in April 2023 and receives infrequent maintenance; Modest user rating (2.8/5) suggests inconsistent results for some users

[Profile (Markdown)](https://openaitools.app/tool/summifyyt.md)

## Frequently Asked Questions

### How do Sider and SummifyYT (Summarize YouTube Comments) compare in monthly traffic?

Sider has 2,644,740 monthly visits, while SummifyYT (Summarize YouTube Comments) 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%; SummifyYT (Summarize YouTube Comments) 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. SummifyYT (Summarize YouTube Comments): Free. Completely free. The extension itself costs nothing and has no in-app purchases; it reuses your existing ChatGPT account, so any costs are whatever your ChatGPT plan already covers.

## 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 | [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) |
| 6 | [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) |
| 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 | [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 | Summarize, bookmark and write with AI right in your browser | [.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/sider-vs-summifyyt

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