Lunally
Chatgpt For Browsers
ChatGPT-powered browsing companion in your tab.
Like GPT Sidebar, Lunally is in the Chatgpt For Browsers category. Lunally is paid, while GPT Sidebar is free. Worth comparing on the detail page.
We've curated 46 of the best alternatives to GPT Sidebar, ranked by feature overlap, topic similarity, user ratings, and popularity. Lunally, GPT-EW, and ChatGPT for Google lead the list as the closest matches.
Updated May 18, 2026
The list includes 44 free alternatives and 2 paid, so whether you're looking for a no-cost replacement or a more capable paid tier, there's an option to compare. GPT Sidebar itself is free, which makes free alternatives the most natural starting point.
Many of these tools cluster around use cases like Free, Chatgpt, Chrome Extension, and Openai — the same problem spaces GPT Sidebar addresses. Cross-referencing tools that overlap on multiple topics gives a more reliable signal than category alone, because two products in the same category can still serve very different workflows.
Our ranking weighs eight signals: shared category, topic overlap, feature overlap, name and description text similarity (via PostgreSQL's pg_trgm and tsvector), Bayesian-smoothed user ratings, pricing-model match, popularity, and editorial overrides. Scores are then normalized within each tool's own candidate pool so the top match always represents the strongest available alternative.
Use the table of contents below to jump to free or paid alternatives, or scroll down to compare each option side-by-side with GPT Sidebar.
Ranked by compatibility score
Chatgpt For Browsers
ChatGPT-powered browsing companion in your tab.
Like GPT Sidebar, Lunally is in the Chatgpt For Browsers category. Lunally is paid, while GPT Sidebar is free. Worth comparing on the detail page.
Chatgpt For Browsers
Bring ChatGPT's AI to every website you visit.
Like GPT Sidebar, GPT-EW is in the Chatgpt For Browsers category. GPT-EW is paid, while GPT Sidebar is free. Worth comparing on the detail page.
44 free and 0 freemium options.
2 paid options.
2 paid alternatives to GPT Sidebar on /tools/gpt-sidebar/alternatives.
22 additional candidates
Lunally ranks as the highest-scoring alternative to GPT Sidebar, based on shared category, topic overlap, feature similarity, and user ratings. Ratings are still being collected for this tool.
Yes — 44 fully free and 0 freemium alternatives are available, including ChatGPT for Google, GPTAnywhere, and Sidekiiick.
Lunally is priced differently (paid) and sits in the same category (Chatgpt For Browsers). View its detail page to compare features, integrations, and reviews side-by-side.
Top Chatgpt For Browsers alternatives include Lunally, GPT-EW, ChatGPT for Google, and GPTAnywhere. These tools share the same primary category and have meaningful topic overlap with GPT Sidebar.
Chatgpt
Display AI responses alongside search results.
ChatGPT for Google shares 3 topics with GPT Sidebar: Free, Chatgpt, and Openai. Both are free.
Chatgpt
Super Easy access to ChatGPT with a simple Chrome-Extension
GPTAnywhere shares 3 topics with GPT Sidebar: Chrome Extension, Free, and Chatgpt. Both are free.
Chatgpt On Mac
ChatGPT at your fingertips: Spotlight for conversational AI
Sidekiiick shares 3 topics with GPT Sidebar: Free, Chatgpt, and Openai. Both are free.
Writing
AI-powered text input for smarter browsing.
TextGPT.app shares 3 topics with GPT Sidebar: Chrome Extension, Free, and Openai. Both are free.
Productivity
Seamlessly integrates AI into daily tasks, boosting productivity and creativity.
AIPal shares 3 topics with GPT Sidebar: Chrome Extension, Free, and Chatgpt. Both are free.
Meeting Summaries
Record, transcribe, and summarize meetings effortlessly.
MeetMemos AI shares 3 topics with GPT Sidebar: Chrome Extension, Free, and Openai. Both are free.
Reverse Image Search
Seek image copies with AI precision
Copyseeker shares 2 topics with GPT Sidebar: Chrome Extension and Free. Both are free.
Ai Content Detection
Spot AI-generated content as you browse.
Detect GPT shares 2 topics with GPT Sidebar: Chrome Extension and Free. Both are free.
Chatgpt For Chrome
Automate your browser with AI
BrowseGPT shares 2 topics with GPT Sidebar: Chrome Extension and Free. Both are free.
Arxiv Summaries
Chrome extension summarizing text documents/articles.
ArxivGPT shares 2 topics with GPT Sidebar: Chrome Extension and Free. Both are free.
Customer Support
AI Support Agent to accelerate ticket resolution
Growparabolic shares 2 topics with GPT Sidebar: Free and Chatgpt. Both are free.
Content
Generate AI content in Google Sheets instantly.
SV Master by Startupvisors shares 2 topics with GPT Sidebar: Free and Chatgpt. Both are free.
Music Creation
Generate music with AI, including singing.
Jukebox shares 2 topics with GPT Sidebar: Free and Openai. Both are free.
Summary To Image Generation
Summarizes and visualizes text on Chrome.
Simagizer shares 2 topics with GPT Sidebar: Chrome Extension and Free. Both are free.
Chatgpt
Free, open-source ChatGPT interface with privacy focus
Chatpad shares 2 topics with GPT Sidebar: Free and Chatgpt. Both are free.
Chatgpt
Supercharge ChatGPT: Customize, enhance, and share.
GPT-EZ shares 2 topics with GPT Sidebar: Free and Openai. Both are free.
Twitter Posts
Tweeting made easy with personalized and engaging content.
Tweeter shares 2 topics with GPT Sidebar: Chrome Extension and Free. Both are free.
Search Engine
Combine Google search with free ChatGPT answers
GooGPT shares 2 topics with GPT Sidebar: Free and Openai. Both are free.
Data Analysis
Turn Datasette into a ChatGPT plugin for data queries.
Datasette ChatGPT plugin shares 2 topics with GPT Sidebar: Free and Chatgpt. Both are free.
Product Comparison
Instantly compare prices and save on your shopping.
Zyft shares 2 topics with GPT Sidebar: Chrome Extension and Free. Both are free.
English Lessons
Learning English with support of ChatGPT.
ChatEngGPT shares 2 topics with GPT Sidebar: Free and Chatgpt. Both are free.
Amazon Review Summaries
Summarizes Amazon reviews for informed choices.
Review Hero shares 2 topics with GPT Sidebar: Chrome Extension and Free. Both are free.
38 more free/freemium alternatives listed below. Browse all GPT Sidebar alternatives ↓
44 free or freemium alternatives to GPT Sidebar on /tools/gpt-sidebar/alternatives.
GPT Games shares 2 topics with GPT Sidebar: Free and Chatgpt. Both are free.
Neither GPT Sidebar nor Lunally has user ratings yet — be the first to review either tool to help future visitors compare them.
