Multi-Field Duplicate Remover

AnkiWeb addon 1203306800

Finds and removes duplicate notes across multiple note types by mapping custom field combinations, with keep rules for oldest, newest, or longest-interval notes, live preview, and undo support.
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note-management duplicates

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Votes: 0 (👍 0 · 👎 0)
Updated: 2026-05-23
Anki versions: 25.09.4~
License: Not found (this does not mean that the addon has no license)
Virus scan: No ClamAV match A match does not prove malware. No match does not prove that the code is safe.
Languages: Python
Description language: en

Maintenance

active

Last update or commit: 2026-05-23 (162 days before the snapshot).

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Version branches

Min Anki	Max Anki	Updated
23.10	25.09.4+	2026-05-23

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Description

Multi-Field Duplicate Remover (Cross-Note Type)

This add-on allows you to find and remove duplicate notes across one or multiple note types based on a custom combination of fields.

Standard Anki only checks the first field within a single note type for duplicates. This add-on solves that limitation by allowing you to cross-check different note types and define unique "matching criteria" by mapping fields together.

Features

Cross-Note Type Scanning: Select multiple note types simultaneously to find duplicates that span across different formats.
Flexible Field Mapping: Individually map which field in Note Type A corresponds to which field in Note Type B (e.g., matching "Word" from one type with "Vocabulary" from another).
Multi-Field Combination: Add multiple criteria lines to ensure notes are only considered duplicates when all specified field combinations match.
Dynamic Keep Rules: Choose which note to keep after reviewing the scan results:
- Oldest Note: Keeps the note created first (lowest Note ID).
- Newest Note: Keeps the note created last (highest Note ID).
- Longer Interval: Keeps the note with the longest review interval to protect your matured cards.
Real-Time Preview: The preview window instantly updates to show exactly which notes will be deleted and kept based on your selected Keep Rule.
Undo Support: Fully compatible with Anki's standard Undo (Ctrl+Z) feature.

How to Use

Go to the top menu and click Tools -> Multi-Field Duplicate Remover.
Select Note Types: Check all the note types you want to include in the duplicate scan from the left panel.
Map Fields to Match: In the right panel, use the dropdown menus to align the corresponding fields for each note type.
- Click + Add Match Field if you want to combine multiple conditions (e.g., matching both the word text and its reading/audio field).
Click Scan Duplicates.
In the preview window, select your desired Keep Rule from the dropdown at the top. The list below will update in real-time.
Review the notes scheduled for deletion. If everything looks correct, click Yes, Delete Them. (The main configuration window will remain open so you can continue working with other settings).