Intersect Contribs
Wikimedia Tool Labs — Pietrodn's tools.

This tool intersects the contributions of two or more users on a given WMF project, showing the pages edited by all of them.
It can help in discovering sockpuppets.

Update: On 2016-04-05 I updated the tool to support the intersection of the contributions of multiple users. Unfortunately, to handle this in a reasonable way, I had to change the format of the URL parameters. The old URL format ("user1" and "user2") is still supported, but eventually this will be removed.
This means that existing links to the tool referring to a specific couple of users will be broken.
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Elapsed time: 2 s

Results

12 results found.
  1. とき (列車)
  2. 京成3000形電車 (2代)
  3. 列車種別
  4. 営団07系電車
  5. 営団8000系電車
  6. 城ヶ崎海岸駅
  7. 大阪府都市開発3000系電車
  8. 東武練馬駅
  9. 東武鉄道
  10. 武蔵野線
  11. 湘南新宿ライン
  12. 近鉄260系電車