# Dia Browser vs Sider

Dia Browser records 1,254,172 monthly visits with +108.4% month-over-month growth and Free pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.

| Metric | [Dia Browser](https://openaitools.app/tool/dia-browser) | [Sider](https://openaitools.app/tool/sider) |
| :--- | :--- | :--- |
| Website URL | https://www.diabrowser.com | https://sider.ai |
| Categories | AI Browsers, AI Assistant | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader |
| Pricing Model | Free | Freemium |
| Monthly Visits | 1,254,172 | 2,644,740 |
| MoM Growth Rate | +108.4% | -10.6% |
| Primary Market | United States | United States |
| Direct Visits | 740,363 | 1,699,535 |
| Review Score | 4.3 | 4.5 |
| Saved Count | 0 | 31 |
| Supported Platforms | Website | Website |

## Dia Browser

Dia rethinks the browser as a workspace assistant rather than a window full of tabs. Instead of bolting a chatbot onto a page, it gives the assistant awareness of your broader context: open tabs, linked Google Workspace or Microsoft Teams content, plus connected tools such as Slack, Notion and GitHub. Practical examples include a Morning Brief that assembles your calendar, inbox and key links before the day starts, a 'Live Work' tab row that surfaces the places work is actually happening, and a Better Meetings mode that opens the right meeting page, agenda, notes and related docs with a countdown so you join on time.

The assistant is designed to produce artifacts rather than just answers. You can ask Dia to turn scattered context into a shareable report, or request a deck and receive real slides with headings, layout and flow that need no redesign. Splits let you place a meeting on one side and a document on the other, and Dia remembers layouts for recurring meetings or focus blocks. Tabs can be grouped automatically with meaningful names such as 'Design Review' or 'Q2 Planning' instead of an unreadable strip. Profiles keep work, freelance and personal browsing — and their AI context — separate, switchable with a swipe.

Privacy is treated as a product feature. Controls are explicit and user-facing: tracker blocking, ad blocking, memory on/off, personalised new chats, and sharing of content data, all toggleable. The company states that data is never sold or used to build ad profiles, that Sync is end-to-end encrypted, and that a separate 'Dia for Work' tier adds SSO and admin tooling for teams. Dia is available as a free download for macOS and Windows, with a release notes and changelog page tracking frequent updates.

**Pricing & Plans:** Free to download and use on macOS and Windows. The company also promotes a 'Dia for Work' offering aimed at teams, which adds enterprise controls such as SSO and admin tools; check the official site for current enterprise terms.

- **Morning Brief:** Starts the day with a consolidated view of your calendar, inbox and key links so you know what is coming before work begins.
- **Context-aware answers across tabs and apps:** Ask once and Dia searches open tabs along with connected Slack, Notion, Teams, GSuite and other tools to answer with full context.
- **Decks and reports from scattered context:** Requests for a deck or a summary come back as presentable slides and shareable reports rather than raw chat text.
- **Live Work tab bar:** Surfaces where work is actually happening, like a specific pull request or spec draft, so one click lands you in the right place.
- **Profiles and encryption controls:** Separate work, freelance and personal browsing contexts, with tracker/ad blocking toggles and end-to-end encrypted sync.

**Strengths:** AI is built into the browser's core workflow rather than added as a sidebar; Context spans tabs, email, calendars and connected work tools for genuinely useful answers; Outputs are artifacts — reports and slide decks — not just chat responses; Explicit, user-facing privacy toggles plus end-to-end encrypted sync

**Limitations:** Only available on macOS and Windows, with no Linux or mobile release at present; Deep integrations work best inside Google Workspace or Microsoft 365 environments; Heavy reliance on connected data may not suit strict compliance setups without the work tier

[Profile (Markdown)](https://openaitools.app/tool/dia-browser.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 Dia Browser and Sider compare in monthly traffic?

Dia Browser has 1,254,172 monthly visits, while Sider has 2,644,740. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Dia Browser has a month-over-month growth rate of +108.4%; Sider has -10.6%.

### How does pricing compare?

Dia Browser: Free. Free to download and use on macOS and Windows. The company also promotes a 'Dia for Work' offering aimed at teams, which adds enterprise controls such as SSO and admin tools; check the official site for current enterprise terms. 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 | [Eigent AI](https://openaitools.app/tool/eigent-ai) | 575,703 | +1.4% | Freemium, Free Trial, Contact for Pricing | Provides an open-source desktop AI workforce for browser and terminal tasks, though less polished as a daily web browser. | [.md](https://openaitools.app/tool/eigent-ai.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 | [Sigma AI Browser](https://openaitools.app/tool/sigma-ai-browser) | 240,775 | -47.1% | Free | Combines local LLMs with web automation inside a private browser, though lacking Dia's native workspace integration. | [.md](https://openaitools.app/tool/sigma-ai-browser.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/dia-browser-vs-sider

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