Context-aware drafting
Use the current page, editable field, selected text, selected browser tabs, and available session context as explicit inputs instead of moving the task to a separate chat.
ShroomPen
ShroomPen is a Chrome/Chromium writing assistant that drafts, rewrites, fixes, and translates text in browser pages using user-selected page, field, tab, and session context.
Browser-based writing with explicit context
ShroomPen is a Chrome/Chromium browser writing assistant for drafting and refining text directly in the page where the work happens. It can use the active page, the focused editable field, selected text, selected browser tabs, and available session context when the user explicitly enables those sources.
The extension is intended for practical, fact-dependent writing such as support replies, billing answers, forms, proposals, and other browser-based work. It presents output for review before insertion and sends generation requests directly to the AI provider endpoint configured by the user, rather than requiring a ShroomPen account or using a ShroomPen-hosted model.
Core features
Reply with source context
Generate a response to the message or request in front of you, using a rough note as the brief and selected sources for supporting facts.
Four writing actions
Apply focused transformations to the text in a field: Reply, Rewrite, Fix Grammar, or Translate. Translate lets you choose the target language.
Review before insertion
Review the generated result in ShroomPen before deciding whether to edit, copy, insert, or replace the text in the page.
Provider choice
Choose OpenRouter, OpenAI, Anthropic, Gemini, an OpenAI-compatible endpoint, or a loopback local-model endpoint rather than using a ShroomPen-hosted model.
Local-first control
Keep provider settings, prompts, notes, workspaces, and related working data in browser storage, with no required ShroomPen account, hosted model, extension telemetry, ads, or application backend.
Practical use cases
Customer support replies
Select the conversation page and relevant order or delivery tabs, then use Reply to draft a customer response with the available details included.
Inbox and helpdesk writing
Turn a rough note into a clearer answer while keeping the work inside an inbox, helpdesk, or other browser-based communication tool.
Research-backed business writing
Select proposal drafts, notes, documentation, or CRM pages as sources when preparing a fact-based response or business document in a browser editor.
Editing browser text
Use Rewrite or Fix Grammar on text already in a form, CMS, or document when the goal is clarity, natural phrasing, spelling, or punctuation rather than a new answer.
Multilingual responses
Choose a target language to translate only the selected text, making the workflow suitable for multilingual replies and form responses.
Pros and Cons
Pros
- Keeps drafting inside the active browser page instead of requiring a separate AI chat window.
- Lets users select exactly which page, field, text, tab, or session sources inform a request.
- Supports distinct Reply, Rewrite, Fix Grammar, and Translate actions with review before insertion.
- Offers multiple provider choices, including OpenAI-compatible and loopback local-model endpoints.
- Uses a local-first design with no required ShroomPen account, hosted model, extension telemetry, ads, or ShroomPen application backend.
Cons
- Requires a configured AI provider and the provider’s credentials or endpoint; no ShroomPen-hosted model is included.
- Availability is limited on Chrome-restricted pages, file URLs, settings, the extension store, and sites blocked by browser or ShroomPen access settings.
- The product is documented primarily for Chrome/Chromium browser workflows; broader browser or platform support is not established by the available sources.
FAQ
How is ShroomPen set up?
Install the Chrome extension, then connect OpenRouter or enter a key for OpenAI, Anthropic, Gemini, or an OpenAI-compatible endpoint. ShroomPen does not require a ShroomPen account or hosted model.
How does the writing workflow work?
Open ShroomPen with Ctrl+Q, from the Chrome toolbar, or from the page context menu. Choose the current page, selected text, editable field, selected tabs, or other available session context, then select an action.
Does ShroomPen replace text automatically?
The result appears in ShroomPen for review first. You can edit, copy, insert, or replace text explicitly; the tool does not change the field automatically.
Which websites and pages does it support?
It is designed for normal websites such as inboxes, CMSs, support tools, and browser-based documents. It stays off Chrome-restricted pages, file URLs, settings, and the extension store, and availability can also depend on Chrome site-access settings.
How does ShroomPen handle privacy and context?
Generation requests go directly from the extension to the provider endpoint configured by the user. Current-page and tab text are read only when those sources are enabled, and the extension is designed to exclude passwords, payment fields, one-time passcodes, and other sensitive inputs.
Quick Facts
- Category
- AI writing assistant and browser extension
- Platform
- Chrome/Chromium browser
- Primary workflow
- Draft, rewrite, fix grammar, translate, copy, insert, or replace text in browser pages
- Context model
- User-selected page, field, text, tabs, and session context
- Provider model
- Bring your own provider or endpoint
- Pricing
- Not established by the available product pages
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