Top Chrome Extensions for Plagiarism Checker
Plagiarism Checker Chrome extensions — 1.8M monthly searches · Rankings shifted 33× in 7 days · Top 3 locked — dominated by incumbents
What Developers Can Learn
Intelligence derived from tracked keywords across all Plagiarism Checker sub-keywords
Most Congested
Only 21 active extensions compete for a keyword with 1.8M Google Search volume.
The market leader holds just 9,000 users with a 3.0 rating — a weak position that signals unmet user needs despite massive demand.
Possible Openings
Adjacent SEO keywords like Local Seo (81K), Sitemap Generator (67K), and Domain Authority Checker (139.8K) offer lower competition with solid search interest.
Positioning Patterns
Top extensions show a quality gap: Integrito (4.8 rating) and Google Classroom tool (4.7) outperform the leader (3.0).
The avg top-5 rating of 4.4 means new entrants must deliver polished experiences to compete.
Top Extensions Leaderboard
7-day ranking snapshot and appearances in Top 10
| # | Extension | Users | Rating | Appearances | Category | Momentum |
|---|---|---|---|---|---|---|
| 1 |  Plagiarism Checker | 9,000+ | ⭐ 3 | 7/7d | Seo | — stable |
| 2 |  Google Classroom plagiarism and AI checker | — | ⭐ 4.7 | 7/7d | Seo | — stable |
| 3 |  Integrito — Analyze Text, Check Plagiarism&AI | 6,000+ | ⭐ 4.8 | 7/7d | Seo | — stable |
| 4 |  Grammarly: AI Writing Assistant and Grammar Checker App | 42,000,000+ | ⭐ 4.5 | 7/7d | Seo | ↑ rising |
| 5 |  Advanced Plagiarism and AI Checker : PlagiarismDetector.net | 117 | ⭐ 4.8 | 7/7d | Seo | ↑ rising |
| 6 |  Self Plagiarism Checker | 1 | ⭐ 0 | 7/7d | Seo | ↓ dropping |
| 7 |  SEO Content Checker: Plagiarism & Readability | 9,000+ | ⭐ 3.4 | 7/7d | Seo | ↓ dropping |
| 8 |  Polygraf AI Content Detector: Advanced Plagiarism & ChatGPT Detector | 1,000+ | ⭐ 4.4 | 7/7d | Seo | ↑ rising |
| 9 |  AI Detector and Human Writing Report - Originality.ai | 30,000+ | ⭐ 3.7 | 7/7d | Seo | ↑ rising |
| 10 |  AI Content Detector - Copyleaks | 200,000+ | ⭐ 4.1 | 7/7d | Seo | ↑ rising |
Plagiarism Checker
9,000+ · ⭐ 3 · 7/7d
Google Classroom plagiarism and AI checker
— · ⭐ 4.7 · 7/7d
Integrito — Analyze Text, Check Plagiarism&AI
6,000+ · ⭐ 4.8 · 7/7d
Grammarly: AI Writing Assistant and Grammar Checker App
42,000,000+ · ⭐ 4.5 · 7/7d
Advanced Plagiarism and AI Checker : PlagiarismDetector.net
117 · ⭐ 4.8 · 7/7d
Self Plagiarism Checker
1 · ⭐ 0 · 7/7d
SEO Content Checker: Plagiarism & Readability
9,000+ · ⭐ 3.4 · 7/7d
Polygraf AI Content Detector: Advanced Plagiarism & ChatGPT Detector
1,000+ · ⭐ 4.4 · 7/7d
AI Detector and Human Writing Report - Originality.ai
30,000+ · ⭐ 3.7 · 7/7d
AI Content Detector - Copyleaks
200,000+ · ⭐ 4.1 · 7/7d
Ranking Volatility - Top 10 Ranks
7-day Top 10 movement snapshot (2026-05-12 to 2026-05-18)
✦ Entered Top 10 This Week
↓ Dropped Out of Top 10
Data Methodology
- Data source:
- Chrome Web Store search results
- Update frequency:
- Weekly
- Monthly Search Demand:
- Estimated demand indicator sourced from third-party keyword data. Not CWS-internal figures.
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Track your extension's ranking for any Plagiarism Checker keyword, monitor weekly changes, and find the exact gaps between you and the top 10.