NopeCHA records 53,284 monthly visits with -14.8% month-over-month growth and Freemium, Paid pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.
AI CAPTCHA solving for browsers and automation pipelines
AI sidebar and browser agent for reading, writing and research
| Dimension / Metric | ||
|---|---|---|
| Official Domain | nopecha.com | sider.ai |
| Pricing Model | Freemium, Paid | Freemium |
| Monthly Visits | 53.28K (53,284) | 2.64M (2,644,740) |
| MoM Traffic Delta | -9.29K (-14.8%) | -314.2K (-10.6%) |
| Primary Market & Share | 🇺🇸 United States (18.2%) | 🇺🇸 United States (13.3%) |
| Direct Visits / mo | 26.51K | 1.7M |
| User Rating | 4.4 | 4.5 |
| Supported Platforms | Website | Website |
AI CAPTCHA solving for browsers and automation pipelines
Chrome, Firefox, and Edge add-ons solve image and audio challenges in-page, including on sites that require the official extension.
Returns verified tokens for Cloudflare Turnstile and Google reCAPTCHA v2/v3 without launching a browser.
Supports reCAPTCHA, Turnstile, FunCAPTCHA, Arkose, AWS WAF, GeeTest, Lemin, PerimeterX, and text CAPTCHAs.
Python (PyPI) and Node.js (npm) libraries plus a REST API for any other language.
AI sidebar and browser agent for reading, writing and research
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 long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
SpecialistAI-powered CAPTCHA solving API built for scale
SpecialistAI-powered CAPTCHA solving API built for scale
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools.
Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools.
Free / Open-sourceAI agents that automate browser workflows on any website
Free / Open-sourceAI agents that automate browser workflows on any website
One AI sidebar for ChatGPT, Claude and Gemini across the web
One AI sidebar for ChatGPT, Claude and Gemini across the web
SpecialistSolve reCAPTCHA, Cloudflare and more in under 0.7 seconds
SpecialistSolve reCAPTCHA, Cloudflare and more in under 0.7 seconds
