★★★★★Trustpilot · August 2026
Short review titled prewriting with no detail on performance.
We ran the SmallSEOTools plagiarism checker on the same 50 documents we use for every plagiarism checker. Thirty had copied or paraphrased passages planted in them, and 20 were original. It judged 38 of the 50 correctly, which is 76%. It scored 2 out of 5 overall and came fourth of the six checkers we tested.
It missed 8 of the 30 documents with copied text and wrongly flagged 4 of the 20 original ones. Each check took 26.6 seconds. Those are middling results: not the worst we saw, but not ones you'd rely on for anything important.
SmallSEOTools suits bloggers and freelancers who want a quick, free check of short texts up to 1,000 words. If you need reliable detection, academic sources or clear rules on what happens to your text, a higher-scoring checker is a better fit.
How we scored it
SmallSEOTools scored 3 out of 5 for ease of use, 2.5 for false positives, 2 for accuracy and speed, and 1.5 for value for money. That gives it 2 out of 5 overall and fourth place.
Accuracy2.0
False-positive rate2.5
Speed2.0
Ease of use3.0
Value for money1.5
Overall score: 2 / 5, the average of the five parts, rounded to the nearest half point.
- Accuracy (2/5): It judged 38 of our 50 documents correctly, 76%, and missed 8 of the 30 documents with copied text.
- False-positive rate (2.5/5): It wrongly flagged 4 of our 20 original documents, 20%, so one innocent document in five was marked as copied.
- Speed (2/5): Each check took 26.6 seconds on average, too slow for checking many documents quickly.
- Ease of use (3/5): Pasting or uploading text and reading the matches was simple, and you can download PDF or Word reports.
- Value for money (1.5/5): The free plan is useful for short texts, but for $9.80 a month you get detection that missed about a quarter of our copied documents.
Best of 2026
See the ranking →
The best plagiarism checkers
Before you pick SmallSEOTools, see how all 6 tools ranked in the same test.
SmallSEOTools in plain terms
SmallSEOTools is a website with many free online tools, and its plagiarism checker is one of them. You paste text or upload a file, and it compares your text with web sources, showing exact matches, partial matches and the sentences it flagged.
Free scans are limited to 1,000 words each. Paying for Pro raises that to 30,000 words per scan, with a monthly or yearly word allowance and a WordPress plugin. The site says it detects paraphrasing and synonym swaps as well as straight copying, and claims support for more than 25 languages.
Unlike most writing tools in our test, SmallSEOTools isn't a dedicated plagiarism service. The checker sits alongside lots of other tools on the same site, which is handy if you use several of them, but means it's less focused than its rivals.
What happens after you sign up
Checking text with SmallSEOTools takes four steps.
1. Add your text. Paste text or upload a doc, docx, txt, odt or pdf file.
2. Run the check. Start the scan. You can leave out up to 10 web addresses, such as your own site, so they don't count as matches.
3. Review the matches. See exact and partial matches with links to their sources and the sentences that were flagged.
4. Export a report. Download the result as a PDF or Word report with the similarity score, sources and flagged sentences.
What you get
The plagiarism checker is simple, with a few options that help keep false alarms down.
Exact and partial matches
Separates word-for-word copying from reworded matches, so you can see which passages need the most attention.
Exclude web addresses
Leave out up to 10 web addresses from the check, such as your own blog, so your published work doesn't count against you.
Ignore cited content
An option to leave properly cited text out of the score, so quotes you've credited don't raise false alarms.
PDF and Word reports
Download a report with the similarity score, sources and flagged sentences to share with a client or editor.
WordPress plugin
Pro plans include a WordPress plugin, which suits bloggers who want to check posts from their site.
Who gets the most out of SmallSEOTools
SmallSEOTools is at its best for short, low-stakes checks. The higher the stakes, the more its middling detection and thin privacy details matter.
A good fit for
- Bloggers checking short drafts
- Freelancers who want a cheap monthly plan
- People who use many small web tools in one place
- Anyone who needs PDF or Word reports
Not a good fit for
- Students who need checks against academic databases
- Anyone who needs to know how long their text is kept
- Teams that need a tool that works every time
- Long documents on the free plan
SmallSEOTools vs Plagium, Quetext and a manual search
Two checkers in our test scored higher than SmallSEOTools. Plagium and Quetext both scored 3 out of 5, against its 2. Pro Monthly at $9.80 a month is cheaper than Quetext Essential at $14.99 a month or Plagium Unlimited at $19.98 a month, but both of those scored higher. Our best plagiarism checkers list has the full ranking.
You could also paste sentences into a search engine yourself. That's free but slow. SmallSEOTools automates the matching against web sources and highlights the flagged sentences, which saves time on anything longer than a paragraph.
| Option | Price | How it compares |
|---|---|---|
| SmallSEOTools | Free; Pro Monthly $9.80 a month | Free 1,000-word scans, with Pro raising the limit to 30,000 words per scan. |
| Plagium | Free; Unlimited $19.98 a month | Credit-based plagiarism and AI checker with a small free daily allowance. |
| Quetext | Free; Essential $14.99 a month | Monthly word allowance for plagiarism and AI checks. |
| Manual search | Free | You paste sentences into a search engine and check the results by hand. |
Our 7-day SmallSEOTools test
We tested the SmallSEOTools plagiarism checker from October 25 to October 31, 2026, over 7 days. We used a set of 50 documents where we already knew the right answer. Thirty had copied or paraphrased passages planted in them, and 20 were fully original. The full set-up is in how we test.
We ran each document through the checker and compared its verdict with the truth. It got 38 of 50 right, which is 76%. Of the 30 documents with copied text, it caught 22 and missed 8. Of the 20 original documents, it cleared 16 and wrongly flagged 4.
The missed copies are the bigger concern. If you're checking a freelancer's work before publishing it, about one copied document in four could slip through. The false flags matter too: four original documents were marked as containing copied text, which could have you rewriting perfectly good work.
Each check took 26.6 seconds on average. That's fine for a single blog post, though longer documents need Pro, since the free plan stops at 1,000 words per scan.
What we liked was how simple it was. Options to leave out your own web addresses and ignore cited text are useful for bloggers. But simple and free doesn't help much if the result can't be trusted.
| What we measured | Result | What it means |
|---|---|---|
| Documents judged correctly out of 50 | Correct 38/50 (76.0%) | It got about three in four documents right, so roughly one verdict in four was wrong. |
| Original documents wrongly flagged | False positives 4/20 (20.0%) | One original document in five was flagged by mistake, so look at each match before rewriting. |
| Copied documents missed | False negatives 8/30 (26.7%) | About a quarter of copied documents got through, so a clean result isn't proof the text is original. |
| Time per document | 26.6 sec/item | Fine for a blog post or two, but slower than the quickest checker in our test. |
SmallSEOTools was easy to use and its free plan covers short texts, but its detection was middling. It missed 8 of 30 copied documents and flagged 4 of 20 original ones. That's why it scored 2 out of 5 and came fourth of six, with value held back by detection that doesn't justify paying much.
Tested October 25, 2026 to October 31, 2026.
The good and the bad from our test
Free checks for short texts
You can check up to 1,000 words per scan for free. For a short blog post or product description, that may be all you need.
Simple to use
Ease of use was its best score, at 3 out of 5. Options to exclude up to 10 web addresses and ignore cited text help keep false alarms down.
Cheap paid plan
Pro Monthly costs $9.80 a month, the lowest monthly price in our lineup, and adds 30,000 words per scan and a WordPress plugin.
Missed copied text
It let 8 of our 30 copied documents through, 26.7%. If you're checking freelance work before you publish it, some copying could get past you.
Flagged original work
It wrongly flagged 4 of our 20 original documents, 20%. That can lead you to rewrite or question work that was fine.
Thin details on your data
The page says your text is used only to make the report and stays confidential, but gives no retention period. We couldn't find who runs the site either.
Pros
- Free scans of up to 1,000 words
- Pro Monthly is $9.80 a month
- Exclude up to 10 web addresses from a check
- PDF and Word reports
- WordPress plugin on Pro
Cons
- Missed 8 of 30 documents with copied text
- Wrongly flagged 4 of 20 original documents
- No retention period given for your text
- Users report tools failing without an error
- Company behind the site isn't stated
How much SmallSEOTools costs
SmallSEOTools has a free plan and two Pro plans. Free scans are limited to 1,000 words each, and the site says fair-usage limits vary by plan. Pro Monthly costs $9.80 a month and gives 35,000 + 5,000 words with up to 30,000 words per scan. Pro Yearly costs $94.08, billed yearly, which the site lists as a 20% saving, and gives 480,000 words over the year.
If you only check the odd blog post, the free plan is enough. Pro Monthly suits freelancers who check longer pieces now and then, and you can stop after a month. Pro Yearly only makes sense if you're sure you'll keep using it. Prices were checked on November 3, 2026.
Pro Monthly
$9.80
a month
- 35,000 + 5,000 words
- Up to 30,000 words per scan
- WordPress plugin
Pro Yearly
$94.08
a year, billed yearly
- 480,000 words
- Up to 30,000 words per scan
- One year validity
There's no free trial of Pro, but the free plan lets you check up to 1,000 words per scan first.
Pro Monthly has one month of validity, and Pro Yearly has one year. We couldn't find SmallSEOTools' refund or cancellation terms, so check them before you pay.
Some reports are listed as a Premium per-page feature, but we couldn't see that pricing.
Prices checked November 3, 2026. Prices can change, so check before you buy.
Is SmallSEOTools safe for your unpublished text?
The plagiarism checker page says your content is used only to create the report and stays confidential. It doesn't say how long your text is kept, and we couldn't find details of the privacy policy or who owns the site.
Users also report reliability problems across the site, such as tools failing with no error and a paid search that became unavailable. Those reviews cover all of SmallSEOTools, not only the plagiarism checker, but they're worth knowing if you plan to pay.
For low-stakes checks of text that's already public, the risk is small. For client work or anything confidential, be more careful.
Don't paste unpublished or confidential work until you've read the privacy policy.
What SmallSEOTools users say
Users are mixed to negative. On Trustpilot, checked November 3, 2026, SmallSEOTools has 2.9 out of 5 from 15 reviews. 53% give 1 star, 20% give 3 stars and 27% give 5 stars.
The complaints are mostly about things not working: tools failing with no error message, a purchased search that became unavailable, and support that didn't help. The latest company replies on the profile date from 2024 and early 2025. On the positive side, one team liked having many tools in one place for client projects.
What users praise
- Many tools in one place
What users complain about
- Tool fails with no error
- Paid search became unavailable
- Support did not help
Recent user reviews, in short
Summarised in our own words, not quoted. Reviewer names are left out.
★★★★★Trustpilot · June 2026
User said a video download failed with no error message.
★★★★★Trustpilot · April 2026
Team liked having multiple tools in one place for client projects.
★★★★★Trustpilot · March 2026
User said the site did not work, a purchased search became unavailable and support did not help.
Most user reviews are about the site as a whole rather than the plagiarism checker. Our test covered only the checker, but its middling detection fits the sense that SmallSEOTools is convenient rather than dependable.
Ratings checked November 3, 2026.
SmallSEOTools alternatives worth a look
Plagium, Quetext and PlagiarismCheck.org scored higher than SmallSEOTools, and two ranked lower. Here's how they compared.
Plagium
Plagium came first with 3 out of 5, scoring higher for false positives, speed and value. It suits occasional users who want to pay for a single check or a credit pack.
Quetext
Quetext also scored 3 out of 5, with the highest accuracy score in our lineup. It suits writers and small teams who want a monthly word allowance from $14.99 a month.
PlagiarismCheck.org
PlagiarismCheck.org scored 2.5 out of 5, with better false-positive and value scores. It suits teachers and schools using a learning platform.
Copyscape
Copyscape scored 2 out of 5. It charges per search and checks the public web, so it suits publishers and SEO teams.
Scribbr
Scribbr scored 2 out of 5 and came last. It charges per document and suits students who want one check before handing in a thesis.
2/5
Should you use SmallSEOTools?
SmallSEOTools is fine for a quick, free look at a short text, and that's about where we'd stop. It got 38 of our 50 documents right, but missed 8 of 30 copied ones and flagged 4 of 20 original ones. That's why it scored 2 out of 5 and came fourth of six.
Pro Monthly at $9.80 a month is cheap, but cheap only helps if the result is reliable. If you check work that matters, such as client articles or anything you'll publish under your name, a higher-scoring checker like Plagium or Quetext is a safer choice, and both have free plans to try first.
SmallSEOTools suits bloggers who want free checks of short texts; anyone who needs reliable detection should look elsewhere.
Still deciding?
Compare plagiarism checkers →
See how SmallSEOTools compares
Every tool in our plagiarism checkers test got the same jobs. Our ranking puts the results side by side.
Disagree with our review?
Make your case
If you use SmallSEOTools, or work there, and think we got something wrong, email us. Tell us what you saw and attach screenshots if you have them. We'll take another look and update the review if it changes our findings.
review.now.team@gmail.com
or open your email app
Frequently asked questions
How much does SmallSEOTools cost?
The plagiarism checker is free for scans up to 1,000 words. Pro Monthly costs $9.80 a month for 35,000 + 5,000 words, with up to 30,000 words per scan. Pro Yearly costs $94.08 billed yearly for 480,000 words, which the site lists as a 20% saving. We checked these prices on November 3, 2026.
Is the SmallSEOTools plagiarism checker free?
Yes, up to 1,000 words per scan. The site also says fair-usage limits vary by plan. For longer documents you need Pro, which allows up to 30,000 words per scan and adds a WordPress plugin. There's no free trial of Pro, but the free plan lets you try the checker first.
How did you test SmallSEOTools?
We ran 50 documents through the plagiarism checker over 7 days in October 2026. Thirty had copied or paraphrased passages planted in them and 20 were original, so we knew the right answer for each. We counted correct verdicts, original documents flagged by mistake, copies it missed, and how long each check took.
Does SmallSEOTools detect paraphrasing?
The site says it detects partial matches, paraphrasing and synonym swaps. Our test set included paraphrased passages, and it caught 22 of the 30 documents with copied or reworded text while missing 8. So it picks up some rewording, but a clean result doesn't mean nothing was copied.
Is my text stored?
The page says your content is used only to generate the report and stays confidential. It doesn't give a retention period, so we can't say how long your text is kept. If you're checking unpublished or client work, read the privacy policy before you paste it in.
What file types can I upload?
You can upload doc, docx, txt, odt and pdf files, and the FAQ also lists tex and rtf. You can also paste text straight into the checker. Reports can be downloaded as PDF or Word files, with the similarity score, sources and flagged sentences.
Written by
Mia Chen
I've always loved the creative side of technology. I'm particularly interested in user experience and how small design decisions can completely change the way a platform feels.