# Fill in / Bucket tool in Annotation toolkit

**URL:** <https://discuss.roboflow.com/t/fill-in-bucket-tool-in-annotation-toolkit/11519>\
**Category:** 🛠️ Feature Reqs\
**Tags:** feature-request\
**Created:** [December 4, 2025, 1:19am UTC](https://discuss.roboflow.com/t/fill-in-bucket-tool-in-annotation-toolkit/11519 "2025-12-04T01:19:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![farm360](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/farm360/32/7308_2.png) [@farm360](https://discuss.roboflow.com/u/farm360)\
**Post date:** [December 4, 2025, 1:19am UTC](https://discuss.roboflow.com/t/fill-in-bucket-tool-in-annotation-toolkit/11519/1 "2025-12-04T01:19:14Z")

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**Feature request:** allow fill in using bucket tool for a closed contour shape to facilitate manual annotation process (ex: creating a segmentation mask). There is a limit to smart select or AI assisted annotation, sometimes manual intervention is required. Having a fill in tool will save a lot of time.

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**Author:** ![farm360](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/farm360/32/7308_2.png) [@farm360](https://discuss.roboflow.com/u/farm360)\
**Post date:** [December 4, 2025, 2:04am UTC](https://discuss.roboflow.com/t/fill-in-bucket-tool-in-annotation-toolkit/11519/2 "2025-12-04T02:04:19Z")

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I will add that it’s convenient to draw a contour with a brush, then fill the closed loop gap with a bucket tool