# Announcing the Firestore Security Rules Simulator!

DevFeed: [Announcing the Firestore Security Rules Simulator!](<https://devfeed.tech/articles/announcing-the-firestore-security-rules-simulator-16271.md>)

Original publisher: [Read original article](<https://firebase.blog/posts/2018/06/announcing-firestore-security-rules>)

Author: Sam Horlbeck Olsen

Published: 2018-06-20T00:00:00Z

Content type: release

Language: en

Sources: [Firebase Blog](<https://devfeed.tech/sources/firebase-blog.md>)

Topics: [Firestore](<https://devfeed.tech/topics/firestore.md>), [Security](<https://devfeed.tech/topics/security.md>), [Access Control](<https://devfeed.tech/topics/access-control.md>), [simulator](<https://devfeed.tech/topics/simulator.md>), [Documentation](<https://devfeed.tech/topics/documentation.md>)

Tags: [access-control](<https://devfeed.tech/tags/access-control.md>), [authentication](<https://devfeed.tech/tags/authentication.md>), [documentation](<https://devfeed.tech/tags/documentation.md>), [firebase](<https://devfeed.tech/tags/firebase.md>), [firestore](<https://devfeed.tech/tags/firestore.md>), [launch](<https://devfeed.tech/tags/launch.md>), [news](<https://devfeed.tech/tags/news.md>), [release](<https://devfeed.tech/tags/release.md>), [security](<https://devfeed.tech/tags/security.md>), [security-rules](<https://devfeed.tech/tags/security-rules.md>), [simulator](<https://devfeed.tech/tags/simulator.md>), [testing](<https://devfeed.tech/tags/testing.md>), [updates](<https://devfeed.tech/tags/updates.md>)

## AI overview

Firebase announces the Firestore Security Rules Simulator, which lets developers test reads, writes, and deletes, simulate authenticated users, and preview authentication tokens before deploying rules. The update also raises document access-call limits and improves reference documentation.

## Source excerpt

News, tutorials, and updates from the Firebase team.