Side by side
SmallSEOTools Plagiarism Checker vs Viper
Both stand on ai plagiarism checkers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIExtensionWeb
SmallSEOTools Plagiarism Checker offers multiple input methods, match details, and report exports, with a free scan cap of 1,000 words. Consider the plan's word limit and the API's stated scope if those affect your workflow.
Visit SmallSEOTools Plagiarism Checker Free plan Web
Viper offers document checks, configurable scan controls, and downloadable reports through a web app. Consider the free scan limit and one-time credit packages when estimating how much checking you need.
Visit ViperThe facts
| SmallSEOTools Plagiarism Checker | Viper | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Extension, Web | Web |
| Lowest paid plan | Yearly: $94.08 a year | See the plans |
| Plans published | 4 | 7 |
| Maker | Not published | Not published |
| Website | smallseotools.com | scanmyessay.com |
| On ai plagiarism checkers | #14 of 26 | #18 of 26 |
SmallSEOTools Plagiarism Checker: what it does well
- Accepts pasted text, uploads, or URLs.
- Reports exact and partial matches with source URLs.
- Can exclude properly attributed material from similarity scores.
- Exports reports as PDF or Word.
What to know first
- Free scans are limited to 1,000 words.
- Monthly and Yearly plans list a 30k-word limit.
- API access is currently for plagiarism checks.
Viper: what it does well
- Checks for plagiarism and AI-generated content
- Supports more than 100 languages
- Can scan up to five files at once
- Reports include highlighted matches and source URLs
- Offers downloadable PDF reports
What to know first
- Free service is limited to one scan per document
- Free scan limit is 5,000 words per document
- No free trial is offered
- No longer available as downloadable software
Alternatives to SmallSEOTools Plagiarism Checker Alternatives to Viper The whole list