Plagiarism checkers:Which brands are most popular in search?
In August 2026, Turnitin was the most searched among plagiarism checkers worldwide, with an estimated 1.5M branded searches and 71.9% estimated Share of Search within this set. These are worldwide searches for English-language branded terms.
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Share of SearchLeaderboard
Compare the tools that check work for copied text. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of Search by month for Turnitin, Scribbr, Copyleaks. The figures are in the table below the chart.
View monthly share of search table
| Month | Turnitin | Scribbr | Copyleaks | PlagScan | Unicheck |
|---|---|---|---|---|---|
| Oct 2025 | 67.1% | 24.5% | 7.4% | 0.81% | 0.24% |
| Nov 2025 | 74.1% | 18.2% | 6.7% | 0.73% | 0.33% |
| Dec 2025 | 71.1% | 21.4% | 6.4% | 0.86% | 0.31% |
| Jan 2026 | 66.8% | 24.6% | 7.3% | 0.99% | 0.24% |
| Feb 2026 | 65.8% | 24.2% | 8.8% | 0.97% | 0.24% |
| Mar 2026 | 66% | 24.2% | 8.9% | 0.65% | 0.24% |
| Apr 2026 | 71.8% | 17.6% | 9.6% | 0.58% | 0.32% |
| May 2026 | 73.1% | 18% | 8% | 0.59% | 0.32% |
| Jun 2026 | 75.7% | 15.2% | 8.3% | 0.61% | 0.18% |
| Jul 2026 | 74.3% | 14.9% | 10% | 0.73% | 0.14% |
| Aug 2026 | 71.9% | 17.6% | 9.6% | 0.71% | 0.12% |
| Sep 2026 | — | — | — | — | — |
This month’s ranking, August 2026
| Rank | Brand | Share of Search | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, held 1st | 71.9% | 1.5M | 0% | -2.4 points | |
| 2, held 2nd | 17.6% | 368K | +22.3% | +2.7 points | |
| 3, held 3rd | 9.6% | 201K | 0% | -0.3 points | |
| 4, held 4th | 0.71% | 14.8K | 0% | 0 points | |
| 5, held 5th | 0.12% | 2.4K | -17.2% | 0 points |
1.
Turnitin71.9%
Held 1st. 1.5M estimated branded searches, 0% vs prior month. Share -2.4 points.
2.
Scribbr17.6%
Held 2nd. 368K estimated branded searches, +22.3% vs prior month. Share +2.7 points.
9.6%
Held 3rd. 201K estimated branded searches, 0% vs prior month. Share -0.3 points.
4.PlagScan
0.71%
Held 4th. 14.8K estimated branded searches, 0% vs prior month. Share 0 points.
5.
Unicheck0.12%
Held 5th. 2.4K estimated branded searches, -17.2% vs prior month. Share 0 points.
Compare search popularity between leading brands
Which brand is most popular in search among plagiarism checkers worldwide?
5 brands
In August 2026, Turnitin was the most searched among plagiarism checkers worldwide, with an estimated 1.5M branded searches and 71.9% estimated Share of Search within this set. Scribbr is in 2nd place, 54.3 percentage points behind at 17.6% Share of Search.
| Brand | Share of Search | Peak | Low | Rank |
|---|---|---|---|---|
| Turnitin | 67.1% → 71.9% | 75.7%Jun 2026 | 65.8%Feb 2026 | 1st |
| Scribbr | 24.5% → 17.6% | 24.6%Jan 2026 | 14.9%Jul 2026 | 2nd |
 Copyleaks | 7.4% → 9.6% | 10%Jul 2026 | 6.4%Dec 2025 | 3rd |
| PlagScan | 0.81% → 0.71% | 0.99%Jan 2026 | 0.58%Apr 2026 | 4th |
| Unicheck | 0.24% → 0.12% | 0.33%Nov 2025 | 0.12%Aug 2026 | 5th |
Each finding as a sentence
- Across the 11 months ending August 2026, Turnitin’s estimated Share of Search among plagiarism checkers worldwide increased from 67.1% to 71.9%.
- Across the 11 months ending August 2026, Scribbr’s estimated Share of Search among plagiarism checkers worldwide decreased from 24.5% to 17.6%.
- Across the 11 months ending August 2026, Copyleaks’ estimated Share of Search among plagiarism checkers worldwide increased from 7.4% to 9.6%.
- Across the 11 months ending August 2026, Turnitin’s estimated Share of Search among plagiarism checkers worldwide peaked at 75.7% in June 2026 and was lowest at 65.8% in February 2026.
- Across the 11 months ending August 2026, Scribbr’s estimated Share of Search among plagiarism checkers worldwide peaked at 24.6% in January 2026 and was lowest at 14.9% in July 2026.
- Across the 11 months ending August 2026, Copyleaks’ estimated Share of Search among plagiarism checkers worldwide peaked at 10% in July 2026 and was lowest at 6.4% in December 2025.
- Across the 11 months ending August 2026, PlagScan and Unicheck held steady: their estimated Share of Search among plagiarism checkers worldwide each moved less than 0.5 percentage points.
How did search popularity change for plagiarism checkers worldwide in August 2026?
5 changes
In August 2026, Scribbr gained estimated Share of Search among plagiarism checkers worldwide, from 14.9% to 17.6%.
In August 2026, Turnitin lost estimated Share of Search among plagiarism checkers worldwide, from 74.3% to 71.9%.
Estimated monthly branded searches for Unicheck worldwide fell 75.8% over 11 measured months, from 9.9K to 2.4K in August 2026.
Estimated monthly branded searches for PlagScan worldwide fell 55.3% over 11 measured months, from 33.1K to 14.8K in August 2026.
Estimated monthly branded searches for Copyleaks worldwide fell 33.2% over 11 measured months, from 301K to 201K in August 2026.
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