- Premium Feature -
Rayyan's industry leading deduplication engine detects and resolves duplicate references
across your entire dataset — automatically, accurately, and at scale.
No credit card required · Free forever for basic use
From intelligent detection to transparent resolution, the Systematic Auto-Resolver gives you complete control over your deduplication workflow.
Rayyan's duplicate detection engine scans your entire dataset after import, identifying records that may appear more than once across multiple database searches. Ranked first in an independent third-party study for its combination of accuracy and sensitivity, the detection algorithm surfaces potential duplicates with confidence scores so you can make informed decisions.
The Systematic Auto-Resolver is a semi-automated tool that lets you define specific criteria to automatically resolve duplicates that match your parameters. Instead of manually reviewing every duplicate pair, set your rules and let the Auto-Resolver handle the bulk of the work — resolving obvious duplicates instantly while preserving edge cases for your manual review.
Take full control of how duplicates are detected and resolved with advanced configuration options. Enable text normalization to ignore case and punctuation differences, protect articles that already have screening decisions assigned, and prioritize which imported dataset to keep when duplicates span multiple searches.
Not all duplicates can be resolved automatically. Rayyan provides powerful manual resolution tools that let you compare duplicate entries side by side, view confidence scores, and choose to keep the left article, the right article, or both. Articles resolved manually are clearly distinguished from auto-resolved records.
Maintain full transparency throughout the deduplication process. Every auto-resolved and manually resolved duplicate is tracked with clear status indicators. Resolved articles appear under the Resolved filter, deleted duplicates under the Deleted filter, and auto-resolved records are marked with a distinct icon — giving your review team complete visibility into what was resolved and how.
Stop wasting hours on manual deduplication.
The Systematic Auto-Resolver handles the heavy lifting so you can focus on screening what matters.
Make 100 decision for free
