# Moly vs Sider

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

| Metric | [Moly](https://openaitools.app/tool/moly) | [Sider](https://openaitools.app/tool/sider) |
| :--- | :--- | :--- |
| Website URL | https://chromewebstore.google.com/detail/moly/lmbdjehkimkamfohnndnoplmhihhlcgi | https://sider.ai |
| Categories | AI Writing Assistants, AI Writing, AI Copywriting, 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 | — | -10.6% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 1,699,535 |
| Review Score | 4.6 | 4.5 |
| Saved Count | 0 | 31 |
| Supported Platforms | Browser Extension | Website |

## Moly

Moly is a lightweight Chrome extension built around one simple idea: instead of copying text into a separate chatbot tab, you bring the AI directly to whatever you are reading. Once installed, the extension adds an assist layer to every page, and you activate it by selecting text and choosing an action. The listed feature set covers instant summaries, plain-language explanations of difficult topics, inline translation, AI-assisted email replies and fully custom actions where you describe what you want done with the highlighted content.

The extension targets people who spend their day in the browser: professionals skimming long reports, students working through dense research material, writers looking for a different angle, and international users who constantly run into content in other languages. The intended pitch is speed and low friction — no context switching, no re-pasting, and a consistent interaction everywhere on the web.

Moly is distributed through the Chrome Web Store and offers in-app purchases, with a free trial advertised in the listing so users can test the assist layer before paying. It is an independent, small-team product; treat the store listing as the canonical source for current features, version number and pricing tiers.

**Pricing & Plans:** Freemium. The Chrome Web Store listing flags in-app purchases and advertises a free trial that unlocks the full feature set, with paid upgrades available inside the extension. Check the listing for current tiers.

- **Instant summaries:** Select a long article, document or page section and get a short, readable summary without leaving the tab.
- **Smart explanations:** Ask Moly to break down a complex passage in simpler terms, useful for technical, academic or legal text.
- **Inline translation:** Translate highlighted text on the spot, so foreign-language pages stay readable without a separate translator site.
- **Email wizard:** Draft and polish replies to messages with AI-generated suggestions while you are still in the webmail tab.
- **Custom AI actions:** Define your own instructions to analyze, rewrite or transform selected content the way you want.

**Strengths:** Works on any website through a single highlight-and-click interaction; Removes the copy-paste round trip to a separate AI chat tab; Covers several common tasks in one extension: summaries, explanations, translation, rewriting; Active store listing with recent version updates and a free trial to test first

**Limitations:** Only available for Chrome-based browsers; Requires an account / paid upgrade for the full feature set after the trial; Small user base and few ratings, so long-term support signals are limited; The companion website moly.ai currently has certificate problems, so support pages may be hard to reach

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

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

### How do their growth rates compare?

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

### How does pricing compare?

Moly: Freemium. Freemium. The Chrome Web Store listing flags in-app purchases and advertises a free trial that unlocks the full feature set, with paid upgrades available inside the extension. Check the listing for current tiers. 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 | [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 | [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) |
| 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 | [AI Blaze](https://openaitools.app/tool/ai-blaze-fast-ai-writing-with-dynamic-prompts) | 781,086 | -8.1% | Freemium | Your free AI study and writing assistant that works on any website | [.md](https://openaitools.app/tool/ai-blaze-fast-ai-writing-with-dynamic-prompts.md) |
| 7 | [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) |
| 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 | [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) |

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

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)