# How can I reduce the file size of my STL in the slicer?

**URL:** <https://discourse.slicer.org/t/how-can-i-reduce-the-file-size-of-my-stl-in-the-slicer/37542>\
**Category:** Support\
**Tags:** segmentation, segmentations, segment-editor\
**Created:** [July 24, 2024, 12:32pm UTC](https://discourse.slicer.org/t/how-can-i-reduce-the-file-size-of-my-stl-in-the-slicer/37542 "2024-07-24T12:32:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Stoll](https://avatars.discourse-cdn.com/v4/letter/s/f05b48/32.png) [@Stoll](https://discourse.slicer.org/u/Stoll)\
**Post date:** [July 24, 2024, 12:32pm UTC](https://discourse.slicer.org/t/how-can-i-reduce-the-file-size-of-my-stl-in-the-slicer/37542/1 "2024-07-24T12:32:29Z")

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![Sheffield_STL](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/5/f/5fa407a855969bb9845183de6cd7725b1406c100.jpeg)

Hello everyone,

I have only recently started working with the 3D slicer and my aim is to edit my STL of a Sheffield test head. The test head is to be 3D printed and my current problem is that my generated STL is still 2.5 GB in size. I would like to coarsen the STL so that my file size is as small as possible.

Unfortunately, I couldn’t find anything suitable among all the tools in the Segment Editor that helped me.

I would be pleased to receive feedback/help.

Thank you!

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [July 24, 2024, 4:20pm UTC](https://discourse.slicer.org/t/how-can-i-reduce-the-file-size-of-my-stl-in-the-slicer/37542/2 "2024-07-24T16:20:03Z")

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You can use the options in the Surface Toolbox module (decimate and/or remesh)

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**Author:** ![Stoll](https://avatars.discourse-cdn.com/v4/letter/s/f05b48/32.png) [@Stoll](https://discourse.slicer.org/u/Stoll)\
**Post date:** [July 26, 2024, 8:56am UTC](https://discourse.slicer.org/t/how-can-i-reduce-the-file-size-of-my-stl-in-the-slicer/37542/4 "2024-07-26T08:56:35Z")

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Thank you very much!