Last updated 06-28-2026
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Glarity
Glarity is a free browser extension from Felo Inc. that summarizes and translates content as you browse. Install it on Chrome, Edge, Safari, Firefox, or Opera, then get AI summaries for YouTube videos, Google results, Twitter posts, Gmail threads, PDFs, and any open webpage.
The extension runs on models including GPT-4o, Claude 3.5, and Gemini Pro. You can summarize full-length pages and videos, chat with page content, translate pages side by side, and use built-in writing help for emails and drafts. Glarity also offers Felo AI Chat with access to multiple models, a large context window, and image generation.
It suits readers who work across languages, researchers who need quick page and video digests, and anyone who wants ChatGPT-style tools inside the sites they already use. The core extension is free and ad-free; paid Glarity membership plans add higher token limits and advanced query allowances.
Summarize YouTube videos with highlights, transcripts, subtitles, and timestamped key moments
Generate summaries for Google search results, Twitter posts, news pages, and any webpage
Translate full webpages side by side, including selected text, PDF text, and images
Chat with PDF and webpage content using an AI reading assistant
Draft and refine emails in Gmail with quick replies, summaries, and sender intent analysis
Use Felo AI Chat with multiple models, a 200k context window, and image generation
Covers summarization and translation across YouTube, search, email, PDFs, and general webpages in one extension.
Available on all major desktop browsers plus an online YouTube summarizer option.
Free extension is ad-free, with optional paid plans for higher token and query limits.
Paid membership limits depend on monthly token and advanced query allowances that can change as upstream model policies evolve.
Some FAQ and blog resource links on the site currently return 404 pages.
How does Glarity summarize YouTube videos?
Glarity generates video summaries in more than a dozen languages, creates timestamped highlights, builds video FAQs, generates and translates subtitles, and lets you chat with the video to pull out specific details.
Can Glarity summarize any webpage?
Yes. The extension can summarize any webpage you open, and you can chat with that page content or use custom prompts to extract specific information.
What translation features does Glarity offer?
Glarity provides real-time full-page translation, side-by-side webpage translation, selected text translation, PDF text translation, and image translation through its free translation extension.
Do I need a ChatGPT or OpenAI account to use Glarity?
Glarity supports ChatGPT and OpenAI key usage along with other models such as Claude 3.5 and Gemini Pro. Check the extension setup and pricing page for current account requirements on free versus paid features.
Which browsers support Glarity?
Glarity offers extensions for Chrome, Edge, Safari, Firefox, and Opera, plus an online YouTube summarizer that works without installing the extension.