Answer in 2 sentences
The best Grammarly alternative depends on where you write. If you spend your day inside AI tools and text boxes across the web, PromptDC is a strong choice because it fixes grammar, rewrites emails and posts, and improves your AI prompts — all in one extension that works everywhere.
What to look for in a Grammarly alternative
Grammarly set the standard for grammar and clarity, but many people now want more than proofreading. When comparing alternatives, look at:
- Coverage — does it work in every text box, or only inside one app?
- Rewrite range — grammar only, or also email, social, summaries, and tone?
- AI prompt support — can it improve prompts inside ChatGPT, Claude, and Gemini?
- Customization — can you set defaults per website?
- Price — is there a usable free tier?
The shortlist
PromptDC
A universal AI prompt enhancer and writing assistant. It corrects grammar and tone like Grammarly, but also rewrites emails, social posts, and summaries, and improves AI prompts — inside any text box, with per-site profiles. See the full PromptDC vs Grammarly comparison.
QuillBot
Best known for paraphrasing, with a grammar checker and summarizer. Great for rewording, less focused on prompts. Compare PromptDC vs QuillBot.
Wordtune
Strong sentence-level rephrasing and tone shifts. Compare PromptDC vs Wordtune.
ProWritingAid
Deep grammar and style reports for long-form writers. Compare PromptDC vs ProWritingAid.
Which should you pick?
If you mostly edit long documents, a dedicated editor like ProWritingAid may fit. If you reword text often, QuillBot or Wordtune help. If you want one assistant that improves writing and AI prompts everywhere you type, try the writing mode in PromptDC.
FAQ
Is there a free Grammarly alternative? Some alternatives offer free tiers, but PromptDC does not. PromptDC's paid plans start at $9 per month and work in any text box.
Does any alternative work inside ChatGPT? PromptDC does, so you can fix grammar and improve prompts without leaving the chat.
What is the best Grammarly alternative for AI? For AI-heavy workflows, PromptDC, because it combines writing fixes with prompt enhancing.
CTA
Try the writing assistant or read the PromptDC vs Grammarly comparison.