# Remove Duplicates From a List in Kotlin

DevFeed: [Remove Duplicates From a List in Kotlin](<https://devfeed.tech/articles/remove-duplicates-from-a-list-in-kotlin-25157.md>)

Original publisher: [Read original article](<https://blog.droidchef.dev/remove-duplicates-from-a-list-in-kotlin/>)

Author: Ishan Khanna

Published: 2023-01-25T20:33:45Z

Content type: tutorial

Language: en

Sources: [Ishan Khanna](<https://devfeed.tech/sources/ishan-khanna.md>)

Topics: [Kotlin](<https://devfeed.tech/topics/kotlin.md>), [Data structures](<https://devfeed.tech/topics/data-structures.md>), [Code](<https://devfeed.tech/topics/code.md>)

Tags: [code](<https://devfeed.tech/tags/code.md>), [data-structure](<https://devfeed.tech/tags/data-structure.md>), [extension-function](<https://devfeed.tech/tags/extension-function.md>), [function](<https://devfeed.tech/tags/function.md>), [kotlin](<https://devfeed.tech/tags/kotlin.md>), [list](<https://devfeed.tech/tags/list.md>)

## AI overview

This Kotlin tutorial explains four ways to remove duplicate elements from a list: toSet(), toHashSet(), distinct(), and an extension-function approach. It compares their return types, ordering guarantees, mutability, and usage considerations.

## Source excerpt

In this article, Ishan Khanna shows you the best way to remove duplicates from a List in Kotlin.