Know How Original Your Writing Is.
Cross-reference your text against 300M+ academic papers. Identify similar passages and their sources before you submit.
No credit card required · 100 free credits on signup
Originality Score
Percentage score showing how original your text is vs academic literature
Flagged Passages
Specific sentences flagged with matching academic sources
300M+ Papers Checked
Cross-referenced against the world's largest open scholarly database
Source Attribution
Each flagged passage links directly to the matching paper
How It Works
From start to research-ready results in minutes.
Paste Your Text
Paste a paragraph, section, or full document into the checker
AI Extracts Key Phrases
Haiku identifies the most distinctive claims and phrases in your text
Extracting key phrases...
Cross-Reference Search
Each phrase is searched against 300M+ academic papers
Cross-referencing 300M papers...
67% complete
Review Results
See your originality score and any flagged passages with their academic sources
Similar passage found
Smith et al. (2022) — Journal of AI Education
Real Use Cases
See how researchers, students, and academics use this module in practice.
Pre-Submission Check
A PhD student checks each thesis chapter before submission to identify any accidentally unattributed paraphrasing.
Journal Manuscript Review
A researcher verifies their manuscript introduction before journal submission.
Literature Review Verification
A supervisor checks a student's literature review draft for proper attribution of ideas.
AI Writing Verification
A researcher checks AI-assisted drafts to ensure generated content doesn't mirror existing papers.
Who It's For
Built for the people who do serious academic work.
PhD Students
Verify originality before submitting chapters to supervisors or for examination.
Research Supervisors
Quickly check student work for proper source attribution.
Academic Authors
Pre-screen manuscripts before journal submission.
Why Docsphere?
See how we compare to other tools.
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Check OriginalityNo credit card required · 20 free credits on signup