# Choose a workspace with privacy in mind. > Compare ChatGPT extension privacy across StylerGPT, Superpower ChatGPT, GPT Master and AI Toolbox, with documented policies and practical considerations. Canonical: https://stylergpt.com/compare/chatgpt-privacy Last updated: 2026-09-27 ## Choose a workspace with privacy in mind. Client details. Unpublished work. Personal questions. What you share with ChatGPT can be sensitive. Your extension’s privacy approach should be part of choosing the tools you use. StylerGPT takes a privacy-first approach, with tools that work directly in your browser. Compare it with the documented choices in Superpower ChatGPT, GPT Master and AI Toolbox. ## Make privacy part of your choice. Look at an extension’s privacy policy alongside the tools it offers. Clear explanations and understandable controls help you choose a workspace that fits the way you use ChatGPT. Review the permissions you grant and keep the provider’s published policy as your reference for how data is handled. A privacy-first approach to everyday ChatGPT work, with clear controls and a dedicated policy explaining how data is handled. Read the provider’s explanation of data handling and check the permissions and controls available before choosing your tools. Compare each extension’s published policy alongside ChatGPT’s own privacy settings. ## Compare where your data goes. StylerGPT emphasizes a privacy-first browser experience. The alternatives have different choices for processing and synchronization, documented below. Read each product’s policy alongside its features. | Extension | Browser experience | Privacy details | | --- | --- | --- | | StylerGPT — Privacy-first by design | A privacy-first ChatGPT workspace, with tools that work directly in your browser. | See the [StylerGPT privacy policy](https://stylergpt.com/privacy) for a complete explanation of data handling. | | Superpower ChatGPT | PDF generation and the Chrome prompt optimizer use browser-side paths. | Conversation sync can upload full chats. Saved prompts, notes, highlights, annotations and audio features also send content. | | GPT Master | Folders, notes, bookmarks and the saved prompt library use local storage. | Side Chat and server-based prompt optimization send questions, drafts or conversation context to GPT Master’s AI services. | | AI Toolbox | Search and TXT, Markdown and JSON export run locally. Personal prompts and chains have a device-only option. | The normal PDF path uploads the conversation. Context summaries and cloud organization also use AI Toolbox’s services. | ## Superpower ChatGPT: A synchronized workspace adds another recipient Superpower’s conversation sync can send full conversation records to its own service. Other feature requests transmit saved prompts, notes, highlights, annotations and pinned-message text. Audio generation also sends selected message text for processing. Its policy says service data is hosted on AWS and is not sold, used for advertising or used to train AI models. These commitments describe how received data is handled. They do not mean that the data stays in your browser. Some paths are local: Superpower’s PDF generator and Chrome prompt optimizer run in the browser. That matters when choosing a feature, but does not make its synchronized workspace local. The data sent depends on the features you use and enable. StylerGPT offers a privacy-first ChatGPT workspace built around your browser. Settings and saved work do not synchronize between devices. [Read the full comparison](https://stylergpt.com/compare/stylergpt-vs-superpower-chatgpt#privacy) - [Superpower privacy policy](https://spchatgpt.com/privacy/) ## GPT Master: Local organization, separate AI processing GPT Master keeps its organizer and prompt library locally. Its AI features have a different boundary: Side Chat sends your question, the selected passage and the relevant user/assistant exchange. Prompt optimization can send your draft with recent conversation context. Its policy names OpenRouter and downstream model providers for AI processing, and describes retention of AI request and result content for up to 30 days. It also describes a Side Chat quality evaluation through your signed-in ChatGPT session, with the answer returned to GPT Master. An optimizer storage control can limit content retention. On a server-processing path, the draft and context still need to be transmitted to produce the answer. Choosing not to store a request does not remove that transmission. StylerGPT combines a privacy-first approach with guided prompt refinement. Read its privacy policy for the full data-handling details. [Read the full comparison](https://stylergpt.com/compare/stylergpt-vs-gpt-master#privacy) - [GPT Master privacy policy](https://gptmaster.app/privacy-policy/) ## AI Toolbox: An export can become a content upload AI Toolbox’s normal PDF workflow sends conversation messages and their title to its server for rendering; the full comparison also notes a local fallback. Long-context summaries send selected messages and their title for server processing. Its policy identifies OpenAI as the processor used for summaries. The policy says PDF and summary content is processed temporarily and discarded. That is a retention commitment after an upload. It also describes cloud storage for organization and saved prompt data. AI Toolbox’s search index stays on-device, and TXT, Markdown and JSON exports are generated locally. Personal saved prompts and chains can use a device-only setting. Folder operations and custom tag rules still use its service, so that setting does not make every workflow local. StylerGPT combines a privacy-first browser experience with five conversation export formats, including PDF and editable DOCX. [Read the full comparison](https://stylergpt.com/compare/stylergpt-vs-ai-toolbox#privacy) - [AI Toolbox privacy policy](https://www.ai-toolbox.co/privacy-policy) ## Privacy-first work in your browser. StylerGPT is designed to make everyday ChatGPT work more personal and manageable. These principles help you choose and use it with confidence. ### Designed around the browser. StylerGPT brings a privacy-first approach to the ChatGPT workspace you already use, with tools and controls that work directly in your browser. ### Optional checks before you send. Prompt Guard can flag sensitive text before supported sends so you can review your draft. It is off by default, can miss sensitive values and does not inspect files, images, voice or connector uploads. ### One place for the details. The StylerGPT privacy policy explains how data is handled. Use it as the reference for privacy questions and informed decisions about your workspace. ### Other extensions keep their own boundaries. Each extension follows its own privacy policy. Review the policies of the products you use together and choose one tool for overlapping controls. ## Sources and scope Published by StylerGPT. This privacy comparison summarizes our detailed comparisons reviewed September 17, 2026; linked vendor policies were checked on September 27, 2026. It assesses the documented data flows, not the security of every release or configuration. Retention and deletion statements are vendor commitments, not independently verified server behavior. Sending data does not establish misuse; avoiding an unnecessary upload reduces the trust required. [Read StylerGPT’s privacy policy](https://stylergpt.com/privacy) ## Make privacy part of your workspace. Personalize ChatGPT with a privacy-first extension designed around the browser and the way you work. [Get StylerGPT](https://stylergpt.com/download) ## Related - [StylerGPT features](https://stylergpt.com/features) - [Frequently asked questions](https://stylergpt.com/faq)