---
title: Thread Safety
description: Couchbase mobile database thread safety concepts
pubDate: 2026-08-17T09:53:44.266Z
antora:
  editUrl: https://github.com/couchbase/docs-couchbase-lite/edit/release/3.1/modules/c/pages/thread-safety.adoc
  xref: xref:3.1@couchbase-lite:c:thread-safety.adoc[]
---

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# Thread Safety

> Description — _Couchbase mobile database thread safety concepts_  

The Couchbase Lite API is thread safe except for calls to mutable objects: `MutableDocument`, `MutableDictionary` and `MutableArray`.