AI prompt & writing assistant in every text box

PromptDC is an AI prompt & writing assistant that improves everyday writing and AI prompts. The desktop app works with selected text in any browser or app. Grammar, Email, Reply, Social, Summarize, Explain, Professional, and Concise fix grammar and tone, rewrite emails and replies, sharpen posts, and summarize or explain what you are reading. The Code profile turns vague developer requests into precise, implementation-ready instructions for AI code generation. In Chrome, the extension can rewrite an editable field in place without Accessibility permission.

Chrome extension featuresIDE extension features

One-click prompt & text rewrites, inside the box

PromptDC lives in the text box you're already typing in. Select your text or press the shortcut and PromptDC rewrites it in place, with no copy-pasting into a separate app or context switch. It works the same whether you're writing a Gmail reply, a LinkedIn post, or a Cursor prompt.

  • Rewrite selected text or the whole field with one click or a keyboard shortcut
  • Keep your voice. PromptDC sharpens clarity and structure without replacing your intent
  • Preview every change before it's applied. Nothing replaces your text until you click Accept

Writing profiles for everyday text

PromptDC ships eight built-in writing profiles that fix grammar, adjust tone, and reshape whatever you're writing. It is a practical Grammarly alternative that follows you across the web instead of staying in one app.

  • Grammar, Email, Reply, Social, Summarize, Explain, Professional, and Concise profiles
  • Per-website rules can set Email on Gmail, Social on LinkedIn, or another writing profile where you need it
  • The floating toolbar works in web text boxes, with a right-click action and one general shortcut for selected text

Profile selection and editor targets

PromptDC picks the right profile for where you are in Chrome, and per-site rules let you choose a different default. In the IDE extensions, you choose the target agent before PromptDC rewrites the prompt in the editor's AI chat panel.

  • Automatic profile selection on supported websites, with per-site overrides
  • Simple or Structured output and target agent selection in the editor extensions
  • The Code profile produces precise, implementation-ready prompts for AI code generation

Bring your own API key (BYOK)

On the Lifetime plan you connect your own OpenAI, Claude, Gemini, or Grok key and pick which provider and model to use. You pay your provider directly for usage with no recurring PromptDC subscription on top.

  • Use your own key and model; your provider bills you for usage
  • No monthly SaaS fee on the Lifetime plan, just a one-time payment
  • Your key is sent securely through PromptDC's backend to your chosen provider with each request

Explore each surface

Chrome extension

The Chrome extension rewrites editable web fields in place and needs no Accessibility permission. PromptDC Desktop also handles selected text in Safari, Edge and every other browser.

Chrome extension features

IDE extensions

Rewrite prompts typed in the AI chat panel in Cursor, VS Code, Windsurf, and more, with target agent selection for implementation-ready specs.

IDE extension features

Bring your own key

Pay once on the Lifetime plan, connect your OpenAI, Claude, Gemini, or Grok key, and pay your provider directly for usage.

How BYOK works

Where PromptDC works

PromptDC Desktop works with selected text in Safari, Edge and every other browser, plus any other app on macOS or Windows. The Chrome toolbar rewrites editable fields in place without Accessibility permission and ships tuned per-site defaults. For writing, it works in places such as Gmail, LinkedIn, X, and Notion, with a right-click action and shortcut. The Code profile enhances prompts in examples such as Cursor, Lovable, Bolt, Replit, v0, Windsurf, and browser AI studios. See the tool guides.

Pricing at a glance

Pro

$9/mo

200 prompt enhancements/month, unlimited profiles

Enterprise

$15/mo

unlimited enhancements, unlimited profiles & files

Lifetime

from $69

one-time payment, bring your own API key, unlimited enhancements using your key

See full pricing

Frequently asked questions

What does the PromptDC extension actually do?

PromptDC rewrites everyday writing and AI prompts into clearer, higher-quality text, right inside the box where you're typing. Its writing profiles work as a Grammarly alternative, and the Code profile creates implementation-ready prompts for AI code generation.

Which browsers and tools does PromptDC support?

PromptDC Desktop works with selected text in Safari, Edge and every other browser. Chrome rewrites editable fields in place without Accessibility permission, while IDE extensions rewrite prompts typed in editor AI chat panels.

How much does PromptDC cost?

PromptDC Pro is $9/mo (200 enhancements/month), Enterprise is $15/mo (unlimited enhancements), and the Developer Lifetime plan is a one-time payment from $69 (tiered launch pricing rising $69 → $99 → $124 as tiers sell out) where you bring your own OpenAI, Claude, Gemini, or Grok API key and pay your provider directly for usage. PromptDC has no free plan.

Does PromptDC work for everyday writing and coding?

Yes. Grammar, Email, Reply, Social, Summarize, Explain, Professional, and Concise cover everyday writing. The Code profile rewrites vague developer prompts into implementation-ready instructions for AI code generation. Chrome picks the right profile for where you are, and you can set a different default per site.

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Enhance your coding prompts.
Right where you code.

For clearer instructions, faster output, and better
coding results.

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