Proofademic vs SmallSEOTools Plagiarism Checker

Proofademic analyzes submitted writing for AI-generated content and plagiarism, producing an overall score and sentence-by-sentence breakdown. Its listed checks include AI text, ChatGPT, paraphrase, multilingual and plagiarism detection, as well as Batch Scan. Proofademic says it reviews essays, research papers, articles and reports in 23 languages, with model coverage including ChatGPT, GPT-5, Claude and Gemini. Batch Scan lets teams upload documents, sort results by risk, inspect sentence-level evidence and export reports. Developers and platforms can use the AI Image Detector API; a browser-based image detector for individual users is described as coming soon. Proofademic says submitted text is processed automatically, is not used for model training or resale, and is not reviewed by people. It reports a 0.2% document false-positive rate in an evaluation of 4,200 fully human-authored academic texts, while advising that results support human review. The Free plan is free and includes 1,000 words and a 3-day trial. Paid plans are $15 a month for Essential, $25 a month for Premium and $45 a month for Professional.

SmallSEOTools Plagiarism Checker compares submitted text with online sources and returns a report identifying matches. Users can paste text, upload files from local or cloud storage, or check a URL. Upload formats include.doc,.docx,.txt,.tex,.rtf,.odt, and.pdf. Reports show duplication scores, exact and partial matches, flagged sentences, and source URLs. Quotations, references, and other properly attributed material can be excluded from the similarity score. The checker says it detects paraphrased content and synonym replacements as well as exact matches, and supports checks in more than 25 languages. Reports can be downloaded in PDF or Word format. The free plan allows up to 1,000 words per scan; paid plans start at $9.80/mo. An API is documented for plagiarism checks and account status, and a WordPress plugin checks content from the dashboard after an API is added in its settings. The product page says submissions are processed through a secure connection and remain confidential after analysis.