# Browserfly vs Sider

Browserfly records 462 monthly visits with +1,220% month-over-month growth and Freemium pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.

| Metric | [Browserfly](https://openaitools.app/tool/browserfly) | [Sider](https://openaitools.app/tool/sider) |
| :--- | :--- | :--- |
| Website URL | https://browserfly.app | https://sider.ai |
| Categories | AI Agent, AI Browsers, AI Assistant, AI Copilot | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 462 | 2,644,740 |
| MoM Growth Rate | +1,220% | -10.6% |
| Primary Market | Indonesia | United States |
| Direct Visits | 184 | 1,699,535 |
| Review Score | 4.1 | 4.5 |
| Saved Count | 0 | 31 |
| Supported Platforms | Website | Website |

## Browserfly

Browserfly is built around a simple premise: instead of asking you to adopt a brand-new AI browser, it drops an AI agent into the browser you already use. After installing the extension, you get a side panel that can read the page you are on, summarize long articles or video transcripts, and answer questions grounded in what is actually open in front of you.

The feature set covers day-to-day browsing chores. Summary compresses content across sites, Quick Actions let you save and re-trigger recurring prompts, and cross-tab chatting is aimed at research-heavy tasks like comparing products or weighing a purchase decision. Agent Mode goes further: you describe a goal and the agent navigates sites, interacts with elements, extracts content, and completes forms.

Because Browserfly supports a bring-your-own-key model, you can connect an API key from the AI provider you already pay for and control which model does the work. The extension is free to install, and the team publishes documentation and a blog to help users get set up and understand how the tool compares with alternatives.

**Pricing & Plans:** Free to install, with a BYOK (bring your own API key) approach. The pricing page lists a BYOK option and a free plan; using your own key means model costs are billed by your AI provider rather than Browserfly.

- **Cross-page summarization:** Condense long articles and video pages, including YouTube and Bilibili, into short summaries that stay grounded in the source content.
- **Quick Actions:** Save customized chat prompts and fire them off with one click to handle repetitive browsing and writing tasks repeatedly.
- **Agent Mode automation:** Give the agent an outcome and it will navigate sites, interact with interface elements, extract information, and fill out forms.
- **Cross-tab shopping research:** Chat across multiple open tabs so the assistant can compare options and help you reach a buying decision.
- **Bring your own API key:** Plug in a key from your preferred model provider to choose the AI model behind the assistant and keep control of usage costs.

**Strengths:** Works with the browsers you already have installed rather than forcing a switch; Bring-your-own-key support gives you control over model choice and cost; Combines reading assistance with real browser automation in one extension; Free to install, with documentation and a blog for onboarding

**Limitations:** BYOK means setup involves obtaining and configuring a separate API key; Agent Mode reliability will vary by site, since web layouts change constantly; Some features depend on the capabilities of the model key you connect

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

Browserfly has 462 monthly visits, while Sider has 2,644,740. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Browserfly has a month-over-month growth rate of +1,220%; Sider has -10.6%.

### How does pricing compare?

Browserfly: Freemium. Free to install, with a BYOK (bring your own API key) approach. The pricing page lists a BYOK option and a free plan; using your own key means model costs are billed by your AI provider rather than Browserfly. 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 | [Dia Browser](https://openaitools.app/tool/dia-browser) | 1,254,172 | +108.4% | Free | The AI browser that reads between your tabs | [.md](https://openaitools.app/tool/dia-browser.md) |
| 6 | [Tabbit Browser](https://openaitools.app/tool/tabbit-ai) | 670,981 | -30.2% | Freemium | The agentic AI browser that reads your tabs, files, and screenshots as context | [.md](https://openaitools.app/tool/tabbit-ai.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 | [Sigma AI Browser](https://openaitools.app/tool/sigma-ai-browser) | 240,775 | -47.1% | Free | A private Chromium browser with a built-in AI agent and offline LLM | [.md](https://openaitools.app/tool/sigma-ai-browser.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/browserfly-vs-sider

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