Last updated 07-23-2026
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Scribbr
Scribbr is an academic writing platform built for students and researchers who need help polishing papers, checking originality, and managing citations. Its homepage groups proofreading, plagiarism detection, citation generation, and a suite of writing tools under one roof.
The platform pairs human proofreading from vetted editors with automated checks for grammar, plagiarism, and AI-generated text. Free tools cover paraphrasing, summarizing, grammar checking, and citation building, while premium services add full-document plagiarism reports and professional editing with tracked changes.
Scribbr targets university students, graduate researchers, and academics working on theses, dissertations, journal articles, and admission essays. It also publishes a large Knowledge Base with guides on academic writing, citing sources, and using AI responsibly in coursework.
Free plagiarism checker with a 99-billion-page web and publication database
Human proofreading with same-day turnaround as fast as 3 hours
Citation Generator supporting APA, MLA, Chicago, Harvard, AMA, IEEE, and ACS
AI Detector flags text from ChatGPT, Copilot, Gemini, and similar tools
Free paraphrasing, grammar, summarizer, and AI humanizer tools with no signup
Academic Check reviews grammar, citations, clarity, plagiarism, and AI risk in one upload
Knowledge Base with 300+ articles on academic writing and research methods
Broad free toolset covers citations, grammar, paraphrasing, and summarizing without signup.
Plagiarism database spans 99.3 billion web pages and 8 million publications.
Human editors pass a selective academy with a reported 2% acceptance rate.
Premium plagiarism checks are priced per document with no monthly subscription option.
Human proofreading costs vary by word count and are not listed as flat public rates.
AI Detector language support is limited to five languages compared to 20 for plagiarism.
Is Scribbr free to use?
Scribbr offers many free tools including its Citation Generator, grammar checker, paraphrasing tool, summarizer, and a basic plagiarism check. Premium plagiarism reports start at $19.95 per document, and human proofreading is priced per order based on word count and turnaround time.
How much does Scribbr's premium plagiarism checker cost?
Scribbr charges per document, not as a subscription. Small documents up to 7,499 words cost $19.95, regular documents from 7,500 to 49,999 words cost $29.95, and large documents over 50,000 words cost $39.95.
What citation styles does Scribbr support?
Scribbr's Citation Generator supports APA, MLA, Chicago, Harvard, AMA, IEEE, and ACS styles. It can autocite sources by title, URL, DOI, or ISBN and exports reference lists to Word or BibTeX.
How fast can Scribbr proofread my document?
Scribbr offers same-day delivery in 3, 6, or 12 hours depending on document length, plus 24-hour, 3-day, and 7-day turnaround options. Documents under 3,000 words can qualify for 3-hour same-day delivery.
Does Scribbr detect AI-generated text?
Yes. Scribbr's AI Detector identifies content from ChatGPT, Perplexity, Copilot, Gemini, and other generative tools. The free check provides an AI likelihood score, and premium plagiarism reports include a precise AI writing percentage.
What languages does Scribbr's plagiarism checker support?
Scribbr's plagiarism checker supports 20 languages including English, Spanish, German, French, Dutch, Arabic, and Portuguese. The AI Detector add-on works for English, Spanish, German, French, and Dutch texts.