Smodin Plagiarism Checker

C
C tier on AI Writing ToolsScore 6.0 · #206 of 269
Android app
Yes
Free plan
No
Paid plans from
$10/mo
Runs on
Android, api, Browser extension, iOS, Web
smodin.io
The Smodin Plagiarism Checker homepage

Summary

Smodin Plagiarism Checker compares submitted text with web and academic material, then returns similarity scores, matched source links, and highlighted sections for review. Users can paste text or upload .txt, .doc, .docx, or .pdf files; a scan requires at least 1,000 characters. Smodin says the checker scans more than 1 billion sources and uses keyword and phrase matching against online pages, as well as comparisons with submitted documents. The resulting report helps readers locate matching passages and sources to review and cite. The checker is browser-based, and Smodin also lists Android, iOS, web, and extension availability, plus a plagiarism and auto-citation API. The API is available in 12 languages and uses pay-as-you-go pricing. A free plan is available. The Starter plan costs $10.00 USD per month billed annually, while Premium is $16.00 USD per month billed annually and includes advanced scans and a Chrome extension. Smodin lists email and phone support, and users may request personal-information deletion through account settings or support.

Who it is for

The checker may suit students, academics, educators, writers, researchers, journalists, professionals, and businesses who need to review text for matching material. Its API may also suit teams building plagiarism or citation services.

What is good

  • Checks against web and academic sources
  • Accepts pasted text and four file formats
  • Reports matched sources and highlighted sections
  • Free plan available
  • API offered in 12 languages

What to know first

  • At least 1,000 characters required per scan
  • Paid plans billed annually
  • Internet security cannot be guaranteed completely

Verdict

Smodin provides source matches and highlighted passages alongside similarity scores, with a 1,000-character minimum for scanning. It has a free plan and paid annual plans starting at $10.00 USD per month.

Smodin Plagiarism Checker plans and pricing

All plans
Starter $10/mo Billed annually Plagiarism checking against web and academic sources · All AI tools included smodin.io · 21 Sept 2026
Premium $16/mo Billed annually Advanced plagiarism scans across web and academic sources · Unlimited writing output · Chrome Extension smodin.io · 21 Sept 2026
Starter $10/mo annually Standard plagiarism checker · limited writing output · email support smodin.io · 30 Sept 2026
Premium $16/mo annually Advanced plagiarism checker · unlimited writing output · 24/7 priority support · Chrome extension smodin.io · 30 Sept 2026

Compared on AI writing tools

Free plan
Yessmodin.io

Facts

Purpose
The plagiarism checker compares text against web and academic sources and returns similarity scores, matched sources, and highlighted sections.smodin.io · 30 Sept 2026
Source coverage
Smodin says the checker scans more than 1 billion sources.smodin.io · 30 Sept 2026
Supported uploads
The checker accepts pasted text and .txt, .doc, .docx, and .pdf files.smodin.io · 30 Sept 2026
Minimum input
The checker page requires at least 1,000 characters to begin a scan.smodin.io · 30 Sept 2026
Detection report
Reports include similarity scores, matched source links, and highlighted sections to review and cite.smodin.io · 30 Sept 2026
Detection methods
Smodin describes keyword and phrase matching against online pages and comparison against submitted documents.smodin.io · 30 Sept 2026
Integrations
Smodin offers a plagiarism and auto-citation API with pay-as-you-go pricing and documentation.smodin.io · 30 Sept 2026
API languages
The services page says the plagiarism and auto-citation API is available in 12 languages.smodin.io · 30 Sept 2026
Security
Smodin says it uses security measures and technologies to protect information from unauthorized disclosure, access, or use, while noting that internet security cannot be guaranteed at 100%.smodin.io · 30 Sept 2026
Data deletion
Users may request personal-information deletion through account settings or by contacting support.smodin.io · 30 Sept 2026
Support
Smodin lists support by email and phone, and its help center asks users to include a screenshot and login email when requesting help.smodin.io · 30 Sept 2026
Who it is for
The checker is presented for students, academics, teachers, educators, writers, researchers, journalists, professionals, and businesses.smodin.io · 30 Sept 2026
Operating model
The checker is offered as a browser-based tool, and Smodin also lists a Chrome extension and developer APIs among its offerings.smodin.io · 30 Sept 2026

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