Lightning-fast RIS deduplication

RIS Merge Tool Online

Combine citation libraries in seconds with automatic duplicate detection, field preservation, CSV export, and shareable permalinks. Built for researchers, librarians, and systematic review teams who need clarity at speed.

Merge workspace

Drop RIS files or paste references to auto-clean, dedupe, and export your library.

Upload RIS files

Drag & drop your RIS files or

No files selected yet.

Paste RIS content Paste any RIS entries and they will merge with uploaded files.

0 References merged

0 Duplicates removed

0 Sources combined

Merged RIS Output

Cleaned references appear here. You can review, edit, and export the results instantly.

About This RIS Merge Tool

This lightweight RIS merge tool is built for research teams who manage citations across multiple databases and reference managers. It combines unlimited RIS files, preserves every field, and removes duplicate entries using DOI, title, and keyword fingerprinting. With an all-browser workflow, nothing leaves your device, making it a safe choice for sensitive systematic review libraries. A unique permalink generator lets you share a read-only snapshot of your merged references with collaborators in seconds, while the CSV export offers a quick pathway to spreadsheets and knowledge bases.

How to Use

Start by dragging in one or more RIS files from your reference manager, or paste copied RIS text into the input field. Select “Merge and Clean” to parse, normalize, and deduplicate your library. Review the merged RIS output, including the real-time summary of duplicates removed, and make quick edits if required. When you are happy, export the clean RIS file, download a CSV summary for QA, or generate a permalink that recreates the merged state for your teammates. Every action runs locally, so the workflow remains fast and private.

Tips for Accurate Merges

For the best results, export RIS files from each database with full bibliographic fields enabled, especially DOI, accession number, and keywords. Use consistent language settings before importing so that identical titles align. If your database omits DOIs, enable the optional title fingerprinting in the settings to catch near-duplicate records. After the merge, skim the CSV summary to confirm priority items and spot gaps such as missing journal names or publication years. Finally, archive the permalink in your project notes to lock in the review-ready citation set.

Frequently Asked Questions

Does the tool alter any RIS fields?

No. All original RIS tags and their values stay intact. The merge logic only consolidates duplicates, preserving the most complete variant of each field so nothing important is lost.

How are duplicates identified?

Duplicates are matched using DOIs first, then unique IDs, and finally a normalized title-and-year fingerprint. This layered approach mirrors premium desktop tools but runs entirely in your browser.

Can I work offline?

Yes. Once the page is cached in your browser, all merging, exports, and permalinks work without an internet connection, making it ideal for secure environments.

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