AnkiWeb
- Rating
- 0 (👍 0 · 👎 0)
- Updated
- 2026-09-04
- Anki versions
- 26.08.1~
- Description language
- zh
Anki Media Deduplicator
AnkiWeb addon 490461948
Safely scans and consolidates byte-identical media in Anki's collection via dry runs, updating note references and trashing redundant copies through official APIs.
Open on AnkiWeb GitHub Ask about alternatives
Maintenance
active
- Last update or commit was 27 days before the snapshot (2026-09-04).
- The repository has 12 test files.
GitHub
- Repository
- huangantimony/anki-media-deduplicator · more by huangantimony
- Stars
- ⭐ 0 · forks 0 · open issues 0
- Last commit
- 2026-09-04
- License
- AGPL-3.0
- Languages
- Python
- Tests
- 12
Will it work on my Anki?
Version branches
| Min Anki | Max Anki | Updated |
|---|---|---|
| 25.09.4 | 26.08.1+ | 2026-09-04 |
History across monthly snapshots
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README
Anki Media Deduplicator
An Anki Desktop add-on that safely removes media files whose contents are exactly identical.
It is especially useful for collections affected by AnkiDroid imports that saved the same audio or image repeatedly under different filenames.
This add-on removes duplicate media. It does not replace Anki's Check Media tool, which finds unused or missing files.
Features
- Read-only scan and Dry Run before anything is changed.
- Only merges files that are byte-for-byte identical and have the same extension.
- Shows affected notes, references to rewrite, and reclaimable space before applying.
- Updates note references before moving redundant files to Anki's trash.
- Protects static template/CSS media,
_files, andlatex-files. - Uses Anki's official collection and media APIs so changes sync correctly.
- English and Simplified Chinese interface.
Installation
AnkiWeb (recommended)
- In Anki Desktop, open Tools → Add-ons.
- Click Get Add-ons....
- Enter add-on code
490461948. - Restart Anki.
GitHub release
Download the .ankiaddon file from the latest GitHub release, then open it with Anki or
choose Tools → Add-ons → Install from file....
Usage
- Open Tools → Anki Media Deduplicator....
- Click Scan Media.
- Review the Dry Run summary and duplicate groups.
- Click Apply Deduplication and check the confirmation carefully.
- Sync Anki normally after completion.
Applying moves redundant files to Anki's media trash; this alone does not free disk space. To actually reclaim the space, open Tools → Check Media and permanently delete the files from the media trash.
The add-on does not run automatically and does not start a sync.
Safety
Files are verified again when you apply a scan result. If a file has changed or disappeared, its duplicate group is skipped. A canonical file is always made available and note references are migrated before redundant copies are trashed.
As with any tool that modifies a collection, make sure your collection has a current backup before applying changes. Files moved to Anki's media trash remain on disk until they are permanently deleted in Check Media.
Limitations
- Exact duplicates only; similar images or transcoded audio are not detected.
- Files with different extensions are not merged.
- Unused-media cleanup is outside this add-on's scope.
- Apply cannot be cancelled after confirmation.
Compatibility
- Anki Desktop 26.08.1 is the primary target.
- Anki Desktop 25.09.4 and newer are supported.
- Older deprecated Anki APIs are not supported.
Development
python3 -m venv .venv
.venv/bin/python -m pip install pytest ruff
.venv/bin/python -m pytest tests benchmarks
.venv/bin/ruff check .
The test suite includes a synthetic 50,000-file workload.
License
GNU Affero General Public License v3.0 or later.