Glarity
Officially listedFree open-source AI browser extension for reading summaries, multilingual translation, and writing assistance.
Glarity
Glarity is a free, open-source AI browser extension that combines reading summaries, multilingual translation, and writing assistance in one tool, trusted by more than 1 million users. It integrates multiple AI models including ChatGPT, Claude 3.5, GPT-4o, and Gemini Pro, letting users freely choose the best engine for each task.
Core Capabilities
- Video summaries: Auto-generates timestamped summaries and FAQs for YouTube videos so you can quickly grasp long videos
- Web summaries: Summarize web pages, articles, and Google search results in one click to speed up research
- PDF analysis: Interactive Q&A on PDF documents for precise extraction of key information
- Multilingual translation: Side-by-side translation across 90+ languages to access global content without language barriers
- Email assistant: Gmail integration that drafts professional replies from context and short instructions
- Model switching: Freely choose between AI engines like ChatGPT, Claude, and Gemini
Use Cases Students and researchers use it to digest academic papers and long videos quickly; professionals use it to handle email and industry news efficiently; cross-language workers use it to read foreign content without friction; and content creators use it to generate video summaries and FAQs. If you process large volumes of multilingual information daily, this extension can save you at least half that time.
Unique Advantages The market has plenty of single-purpose tools, but Glarity unifies the three high-frequency needs of summarizing, translating, and writing — and it is completely free and open source. Multi-model support means you are not locked into a single AI vendor, and you can use your own API keys to unlock advanced features. The open-source nature guarantees code transparency and ongoing community contributions.
Editor's Review For a free open-source tool, Glarity's feature coverage and ease of use exceed expectations. It works across Chrome, Edge, Safari, Firefox, and Opera, and is ready to use right after install with no configuration. Community feedback shows it is especially popular for academic research and multilingual reading. The only limitation is a token usage cap on the free tier, so heavy users may need to upgrade to Pro or Plus. For everyday information processing, it is one of the best value picks available.
Pricing
### 💰 定价模式：免费增值 **起步价**：免费 #### 主要方案 - **免费版**：基础翻译引擎、核心摘要功能、无广告体验 - **Pro版**：GPT阅读token配额、快速支持 - **Plus版**：无限token、完整功能访问、优先支持 #### 试用/其他信息 免费版功能已相当完善，部分高级功能可使用自己的API密钥解锁。
FAQ
Is Glarity free?
Glarity offers a free version with the basic translation engine and core summarization features. The paid Pro and Plus tiers provide more GPT reading tokens and advanced features.
Which browsers does Glarity support?
Glarity supports mainstream browsers including Chrome, Edge, Safari, Firefox, and Opera, along with mobile access via iOS Safari.
What types of content can Glarity summarize?
Glarity can summarize YouTube videos, web articles, Google search results, and PDF documents, and supports interactive Q&A with the content.
How many languages does Glarity support?
Glarity supports translation and content summarization in 90+ languages, with a side-by-side display mode for easy cross-language information access.
Which AI models does Glarity use?
Glarity integrates multiple mainstream AI models including ChatGPT, Claude 3.5, GPT-4o, and Gemini Pro, and users can freely choose based on their needs.
Is Glarity open source?
Yes, Glarity is an open-source project hosted on GitHub, where users can view the source code and contribute to the community.
How does Glarity differ from tools like Merlin AI and Sider?
Glarity is free and open source, with multi-model support and 90+ language translation. Merlin focuses on ChatGPT integration and Sider emphasizes multi-model comparison, while Glarity unifies summarization, translation, and writing — and it is free.