Casual to Formal Language Rewriter
Free to download on every platform. Comes pre-installed on BotFone, BotPad and BotFlip — with extra free apps included.
About this app
WHAT IT DOES
Casual to Formal Language Rewriter extracts selected text or page content and uses advanced AI to convert casual, informal language into formal, professional prose suitable for business, academic, or professional contexts. It transforms informal expressions, contractions, and casual phrasing into polished, professional language while preserving the original meaning and key information. Whether you're preparing a business email, academic paper, professional report, or formal correspondence, this tool helps you achieve the appropriate tone and style.
WHERE IT RUNS
This tool operates as a userscript within the BotGentz extension framework, running directly in your browser on any website. It works on emails, social media drafts, blog posts, academic writing, business communications, and virtually any text you need to elevate from casual to formal. The tool integrates seamlessly into your workflow, appearing as a draggable panel that stays accessible as you write and edit.
HOW TO USE
Select text on the page and click "Get Text" to extract it automatically, or paste content directly into the panel. Configure your formality settings: choose your target formality level (Business Professional, Academic, or Professional Correspondence), toggle voice preservation on or off to maintain your unique style, and toggle explanatory notes on or off to understand what changes were made. Click "Rewrite to Formal" to send the content to the AI backend. Within moments, you'll receive a polished, professional version of your text. Use the "Copy Rewritten Text" button to paste it into your document, email, or application.
TECHNICAL OPERATION
Casual to Formal Language Rewriter employs a multi-strategy extraction pipeline that first checks for selected text, then attempts WebMCP (navigator.modelContext) when available—a W3C proposal for structured page content access—and falls back to full-page content extraction. The user's formality level selection, voice preservation preference, and explanatory notes setting are encoded as system-level instructions in the prompt sent to the AI. The text is truncated to 8000 characters and transmitted via GM_xmlhttpRequest to the AI backend. The AI, specifically prompted as a professional writing specialist, analyzes the text for casual markers including contractions, informal vocabulary, colloquial expressions, sentence fragments, and conversational tone. It then applies appropriate transformations: replacing contractions with full forms, substituting informal vocabulary with formal alternatives, restructuring sentence fragments into complete sentences, expanding abbreviations, and adjusting the overall tone. The output preserves the original meaning while elevating the formality level to match the selected style. When explanatory notes are enabled, the output includes brief annotations explaining key changes. Each request is authenticated with a subscription key and counts against your monthly usage cap.
THE PANEL
The Casual to Formal Language Rewriter panel is fully draggable and remembers its position between sessions using GM_setValue. It snaps to the edge of the viewport for a clean interface and can be collapsed to a small icon when not in use. The panel is resizable to accommodate longer content. Press Escape to quickly close or collapse the panel. The design is optimized for productivity with a dark theme, clear visual hierarchy, and responsive controls that adapt to your workflow.
PLEASE NOTE
This tool requires the free BotGentz extension installed in your browser and an active subscription to access the AI backend. AI-generated formal rewrites are intended as aids for professional writing and should be reviewed for tone appropriateness, accuracy, and alignment with your specific context. The tool may not capture all nuances, and some rewrites may require additional personalization. Always review formal content before sending or publishing. No page data is stored or transmitted beyond the content you explicitly submit for rewriting. All processing occurs through secure HTTPS connections, and your subscription key is never exposed to the page context.