Vetted & Ranked
Best Vetted Grammar Checker & AI Writing Tools Companies in 2026
✓ Independently vetted by the WhatiseBrokering team · Last updated July 21, 2026
Every company below passed our vetting checklist — try before you buy or a real money-back guarantee, no fine-print returns, and a human you can reach. TrustScores reflect what we actually verified, not what companies claim.
🏆 Best Choice in 2026
✓ Grammar Check
✓ VettedAI tool that checks and fixes grammar, spelling, and punctuation errors in your text instantly.
Why we like them
✓Free to use with no sign-up required; paid plans start at $2.50/mo (Lite) and $4/mo (Pro) with more credits and faster processing
✓One-click 'Fix All Errors' feature plus support for multiple languages including Spanish, German, and French
✓Includes additional tools: AI Humanizer, AI Checker, Plagiarism Checker, Summarizer, and Paraphraser
What we verified
✓Money-back guarantee verified
✓Free trial available
—Reachable customer service
✓No fine-print return conditions
✓No unrealistic claims detected
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