How do their growth rates compare?

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

How does pricing compare?

Browser Copilot: Free. Free 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.

What are alternatives to Browser Copilot and Sider?

Other tools in related categories include ChatGPT, Claude, VS Code, Monica, Clawdbot (OpenClaw).

Head-to-Head Benchmark

Browser Copilot vs Sider

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

Browser CopilotFree

Browser Copilot is a free, open-source Chrome extension that embeds AI assistants directly into your browser. Rather than bundling a single chatbot, it lets you load any web-hosted copilot by URL — or build your own — and use it while you work in web apps.

Monthly Visits

0

MoM Velocity

—

Top Market

🌐 Global

View Browser Copilot Analysis

chromewebstore.google.com

SiderFreemiumTraffic Leader

AI sidebar and browser agent for reading, writing and research

Monthly Visits

2.64M

MoM Velocity

-10.6%

Top Market

🇺🇸 United States

View Sider Analysis sider.ai

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Browser Copilot	Sider
Official Domain	chromewebstore.google.com	sider.ai
Pricing Model	Free	Freemium
Monthly Visits	0 (0)	2.64M (2,644,740)

Primary Market & Share	🌐 Global (—)	🇺🇸 United States (13.3%)

Direct Visits / mo	0	1.7M

User Rating	4.3	4.5

Supported Platforms	Browser Extension	Website

Browser Copilot

Browser Copilot is a free, open-source Chrome extension that embeds AI assistants directly into your browser. Rather than bundling a single chatbot, it lets you load any web-hosted copilot by URL — or build your own — and use it while you work in web apps.

Sider

AI sidebar and browser agent for reading, writing and research

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.

Strengths & Pros

+Works inside the browser you already use, with no context switching

Frequently Asked Questions: Browser Copilot vs Sider

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

More Head-to-Head Matchups

Browser Copilot vs ChatGPT

6.05B visits/mo

ChatGPT vs Sider

6.05B visits/mo

Browser Copilot vs Claude

1.25B visits/mo

Claude vs Sider

1.26B visits/mo

Browser Copilot vs VS Code

7.4M visits/mo

Sider vs VS Code

10.04M visits/mo

Best Alternatives to Browser Copilot & Sider (12)

+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

01

ChatGPT

6B/mo

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

AI ChatbotFreemium+2.2%

02

Claude

1.3B/mo

SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

AI AssistantFreemium+23.8%

#2

03

VS Code

7.4M/mo

Free / Open-sourceWrite code with precision, hand bigger jobs to agents, and keep working from anywhere

AI Code AssistantFreemium29% direct

Screenshot of VS Code with an agent session planning changes and a diff view for review

04

Monica

4.5M/mo

Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.

AI AssistantFreemium55% direct

Monica web app showing an AI chat conversation with model selector and sidebar tools

05

OpenClaw open-source personal AI assistant homepage

Clawdbot (OpenClaw)

1.9M/mo

Free / Open-sourceOpen-source personal AI assistant that runs on your own machine and works from chat apps

AI AssistantPaid, Free31% direct

OpenClaw assistant operating inside a chat app conversation

06

Merlin AI

1.4M/mo

One AI assistant that plugs ChatGPT, Claude and Gemini into every tab

AI AssistantFreemium+13.1%

Screenshot of the Merlin AI Chrome extension summarizing an article with multiple AI models available

07

Merlin AI

1.4M/mo

Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.

AI AssistantFreemium+13.1%

Merlin AI Chrome extension sidebar summarizing a webpage

08

Open WebUI

804.5K/mo

Free / Open-sourceSelf-hosted AI workspace for local and cloud models

Large Language Models (LLMs)Freemium37% direct

Screenshot of the Open WebUI chat workspace with model selector and sidebar of prompts and tools

09

Chatbox

567.2K/mo

One privacy-first AI client for GPT, Claude, Gemini and more

AI CopilotFreemium58% direct

Chatbox desktop interface with a file Q&A conversation, sidebar of chats and model settings panel

10

HARPA AI

537.5K/mo

Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.

AI AgentFreemium+99.3%

HARPA AI extension panel showing model selection and page-aware prompt shortcuts on a website

11

GPT Workspace

431.5K/mo

Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail

AI Productivity ToolsFreemium, Free Trial, Paid+43.8%

Screenshot of AI features inside Google Sheets and Gmail powered by GPT Workspace

12

CopilotKit

403.1K/mo

Free / Open-sourceOpen-source frontend stack for building AI agents and copilots inside your own product

AI CopilotFreemium+199.4%

CopilotKit homepage showing the enterprise agent product stack, supported frameworks, and an in-app agent rendering a live expense dashboard

#1

Visit

ChatGPT

6B/mo+2.2%

Official

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

AI Chatbot73% direct

Freemium

Visit

Claude

1.3B/mo+23.8%

Official

SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

AI Assistant72% direct

Freemium

#3

Visit

VS Code

7.4M/mo

Open Source

Free / Open-sourceWrite code with precision, hand bigger jobs to agents, and keep working from anywhere

AI Code Assistant29% direct

Freemium

Visit

Monica

4.5M/mo

Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.

AI Assistant55% direct

Freemium

Visit

Clawdbot (OpenClaw)

1.9M/mo

Open Source

Free / Open-sourceOpen-source personal AI assistant that runs on your own machine and works from chat apps

AI Assistant31% direct

Paid, Free

Visit

Merlin AI

1.4M/mo+13.1%

One AI assistant that plugs ChatGPT, Claude and Gemini into every tab

AI Assistant50% direct

Freemium

Visit

Merlin AI

1.4M/mo+13.1%

Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.

AI Assistant50% direct

Freemium

Visit

Open WebUI

804.5K/mo

Free / Open-sourceSelf-hosted AI workspace for local and cloud models

Large Language Models (LLMs)37% direct

Freemium

Visit

Chatbox

567.2K/mo

One privacy-first AI client for GPT, Claude, Gemini and more

AI Copilot58% direct

Freemium

Visit

HARPA AI

537.5K/mo+99.3%

Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.

AI Agent76% direct

Freemium

Visit

GPT Workspace

431.5K/mo+43.8%

Official

Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail

AI Productivity Tools41% direct

Freemium, Free Trial, Paid

Visit

CopilotKit

403.1K/mo+199.4%

Open Source

Free / Open-sourceOpen-source frontend stack for building AI agents and copilots inside your own product

AI Copilot44% direct

Freemium

Browser Copilot vs Sider

Side-by-Side Traffic & Specification Matrix

Browser Copilot

Sider

Strengths & Pros

Frequently Asked Questions: Browser Copilot vs Sider

How do Browser Copilot and Sider compare in monthly traffic?

How do their growth rates compare?

How does pricing compare?

What are alternatives to Browser Copilot and Sider?

More Head-to-Head Matchups

Best Alternatives to Browser Copilot & Sider (12)

Limitations