Best Prompt for Grammar and Clarity (Free)

Writing Updated August 20, 2026 by GenPrompto

Prompt

Fix the grammar, clarity, and readability of this text, without changing its meaning or tone: "[paste your text]". Keep my original voice and word choices where they're already clear -- only change what's actually unclear or grammatically incorrect.

What this does

Fixes grammar and clarity issues in your actual text while explicitly preserving your voice, rather than rewriting everything into a generic, flattened style.

Variations

Two more versions, ready to copy on their own.

Formal/Professional Context Version

Fix the grammar, clarity, and readability of this text for a professional context, without changing its core meaning: “[paste your text]”. Keep it polished and appropriate for [email/report/proposal], but don’t over-formalize language that’s already clear.

Explain-the-Fix Version

Fix the grammar and clarity of this text: “[paste your text]”. For each change you make, briefly note why — so I can learn the pattern for next time, not just get a corrected version.

Who this is for

Anyone editing their own writing who wants genuine grammar and clarity fixes without losing their personal voice in the process — particularly useful for Content Creators, Students.

Example Output

“Original: "The thing is we been trying this approach for months and it's just not really working the way we thought." Fixed: "We've been trying this approach for months, and it's not working the way we expected." (Casual tone kept, grammar corrected.)”

Voice preserved, Genuine fixes only, Tested on Claude Sonnet 5, Aug 2026.

This is built for genuine grammar and clarity improvement, not a generic style rewrite — if the goal is specifically to sound less AI-generated or more human, see the writing-quality prompt on this site built for that instead.

Tips for better results

The "keep my original voice" instruction matters — without it, AI grammar tools often rewrite far more than necessary, flattening distinctive phrasing along with genuine errors.
For longer pieces, run this section by section rather than the whole document at once — it's easier to check each section actually preserved your voice.
If a suggested change feels off, ask specifically why it was flagged — sometimes what reads as "incorrect" is actually a stylistic choice worth keeping.

What didn’t work as well

A version without the voice-preservation instruction, run on a piece with a distinctive, casual tone, came back sounding generic and corporate — adding "keep my original voice, only fix what's actually unclear or incorrect" preserved the tone while still catching real errors.

FAQ

Why does this keep emphasizing preserving my voice?

Generic AI grammar tools often over-correct, smoothing out distinctive phrasing along with genuine errors — being explicit about preserving voice keeps the fix focused on what’s actually wrong.

Is this different from a “humanize my writing” prompt?

Yes — this is for genuine grammar and clarity correction of your own writing. A separate prompt on this site is built specifically for improving AI-generated text’s natural writing quality.

Does this work for non-native English writing specifically?

Yes — mention that English isn’t your first language for context, and ask it to flag patterns worth learning, not just fix them silently.

Can this check tone consistency across a longer document?

Ask it directly to flag any sections where tone shifts noticeably from the rest — this works better as a follow-up question than trying to catch it in the first pass.

What this does

Variations

Who this is for

Example Output

Tips for better results

What didn’t work as well

FAQ

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