Fix Grammar in Any Text You Select on the Web — Desktop Writing App

Select any text on the web and PromptDC fixes spelling, grammar, and punctuation while preserving your wording and meaning. It works on blogs, articles, chat, email, forms, Google Docs, and AI tools.

Voice-safe corrections

It only fixes errors and awkward phrasing; it does not rewrite you in a new voice. Editable text is replaced in place, while read-only results are copied to your clipboard.

Even inside AI chats

Unlike many grammar tools, PromptDC works inside ChatGPT, Claude, and Gemini too.

From every text box to every app, PromptDC goes with you

The PromptDC desktop app for macOS and Windows rewrites selected text in every text box, every desktop app, browser and text field. Use Cmd+Shift+E or Ctrl+Shift+E to review an editable result, then Replace or Copy.

PromptDC is also the first desktop app to enhance prompts inside terminal CLIs, including Claude Code, Codex CLI, Gemini CLI, Grok, Agy and OpenCode. Select the Code profile for coding prompts, and choose a default profile for each application.

The Chrome and IDE extensions are optional additions. The browser add-on supports in-place rewriting without Accessibility permission and per-site defaults; editor add-ons provide a target-agent picker and Simple or Structured output, while the desktop app already works everywhere.

Related links

Write better with AI

Enhance any text you select on the desktop, on the web, in your editor or terminals.

Download PromptDC