AI essay checker tools compared

Essay checking tools now cover everything from grammar to plagiarism to AI detection. Here’s how the major options stack up for students in 2026.

All-in-One Solutions

Grammarly – Still the best overall writing assistant. Catches grammar errors, suggests clarity improvements, and has a plagiarism checker. The free version handles grammar well; premium adds advanced suggestions and plagiarism checking. Does NOT include AI detection.

Turnitin – The institutional standard. Checks for plagiarism AND AI-generated content. You likely access it through your school’s LMS. The most trusted name in academic integrity checking.

AI Detection Specialists

GPTZero – Decent accuracy, free tier available. Good for quick checks but inconsistent on edge cases. Works directly in your browser.

Copyleaks – Strong multilingual support. Good for international students. Offers both plagiarism and AI detection. Free tier is limited but functional.

Scribbr – Turnitin-powered AI detection that anyone can access without a school account. Great for self-checking.

Grammar and Style

ProWritingAid – More detailed writing analysis than Grammarly, including style reports, sentence variety analysis, and pacing. Better for longer academic papers. The learning curve is steeper but the depth is worth it for serious writers.

Hemingway Editor – Free web-based tool that highlights complex sentences and suggests simpler alternatives. Great complement to Grammarly.

My Recommended Stack

For most students, I’d recommend: Grammarly Free for everyday grammar and clarity, your school’s Turnitin for plagiarism and AI checks before submission, and Scribbr for a second opinion on AI scores if needed. That covers all your bases without spending a dollar.

If you write a lot and want to improve, add ProWritingAid ($10/month with student discount) for detailed writing analysis that actually teaches you to write better over time.