macOS 13

IPSW · macOS

macOS 13.3.1 IPSW Download (22E261)

Build 22E261, released April 7, 2023 — restore images for 20 Macs, straight from Apple's servers.

Release Build 22E261 Size 12.73 GB All macOS 13 builds →
Apple is signing this build. You can restore to it now in Finder, the Apple Devices app, iTunes or Apple Configurator. Signing status checked September 12, 2026.

Choose your Mac

20 devices. Each row is one file on Apple's CDN.

Mac mini (M2 Pro, 2023)
Mac mini (M2 Pro, 2023)
Signed Mac14,12 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
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Mac mini (M2, 2023)
Mac mini (M2, 2023)
Signed Mac14,3 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
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MacBook Pro (14-inch, M2 Max, 2023)
MacBook Pro (14-inch, M2 Max, 2023)
Signed Mac14,5 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
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MacBook Pro (14-inch, M2 Pro, 2023)
MacBook Pro (14-inch, M2 Pro, 2023)
Signed Mac14,9 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
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MacBook Pro (16-inch, M2 Max, 2023)
MacBook Pro (16-inch, M2 Max, 2023)
Signed Mac14,6 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
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MacBook Pro (16-inch, M2 Pro, 2023)
MacBook Pro (16-inch, M2 Pro, 2023)
Signed Mac14,10 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
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MacBook Air (M2, 2022)
MacBook Air (M2, 2022)
Signed Mac14,2 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
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MacBook Pro (13-inch, M2, 2022)
MacBook Pro (13-inch, M2, 2022)
Signed Mac14,7 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
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Mac Studio (M1 Max)
Mac Studio (M1 Max)
Signed Mac13,1 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
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Mac Studio (M1 Ultra)
Mac Studio (M1 Ultra)
Signed Mac13,2 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
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MacBook Pro (14-inch, M1 Max, 2021)
MacBook Pro (14-inch, M1 Max, 2021)
Signed MacBookPro18,4 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
Download
MacBook Pro (14-inch, M1 Pro, 2021)
MacBook Pro (14-inch, M1 Pro, 2021)
Signed MacBookPro18,3 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
Download
MacBook Pro (16-inch, M1 Max, 2021)
MacBook Pro (16-inch, M1 Max, 2021)
Signed MacBookPro18,2 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
Download
MacBook Pro (16-inch, M1 Pro, 2021)
MacBook Pro (16-inch, M1 Pro, 2021)
Signed MacBookPro18,1 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
Download
Apple Virtual Machine 1
Apple Virtual Machine 1
Signed VirtualMac2,1 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
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iMac (24-inch, M1, 2021, Four Ports)
iMac (24-inch, M1, 2021, Four Ports)
Signed iMac21,1 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
Download
iMac (24-inch, M1, 2021, Two Ports)
iMac (24-inch, M1, 2021, Two Ports)
Signed iMac21,2 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
Download
Mac mini (M1, Late 2020)
Mac mini (M1, Late 2020)
Signed Macmini9,1 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
Download
MacBook Air (M1, 2020)
MacBook Air (M1, 2020)
Signed MacBookAir10,1 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
Download
MacBook Pro (13-inch, M1, 2020)
MacBook Pro (13-inch, M1, 2020)
Signed MacBookPro17,1 12.73 GB
UniversalMac_13.3.1_22E261_Restore.ipsw SHA-256 6e9d9b30528ec951d8a377173b355932647194c326347efc5e54ade1fe71cbc8
Download
Version
macOS 13.3.1
Build
22E261
Released
April 7, 2023
Channel
Public release
Previous
macOS 13.4 beta
Next
macOS 13.4 beta 2

How to install macOS 13.3.1 from the IPSW

Four steps, and the one that matters most is the first.

Back up first

A restore erases the device. Make an archived backup in Finder or the Apple Devices app — an iCloud backup taken on a newer version cannot be restored onto an older one. Our backup guide covers the difference.

Get the file for your exact model

Check Settings → General → About → Model Name, then download the IPSW for that device. The download shows the file size; compare it with the SHA-256 under Details if you want to be certain the file is intact.

Restore in Finder or Apple Devices

Connect with a cable, select the device, then hold Option (Mac) or Shift (Windows) and click Restore to choose the .ipsw. Update keeps your data but only works upward; Restore erases and is how you downgrade.

Set up or restore your backup

After the restore the device starts fresh. Restore the backup you made — only if it came from the same or an older version than the one you just installed.

Questions? Answers.

Can I restore macOS 13.3.1 today?

Yes. Apple is signing build 22E261 for every listed device, so a restore in Finder, the Apple Devices app or iTunes will complete.

Which is the right file for my device?

Match the identifier in Settings → General → About (or under the model's name here) against the one on each row. Wi-Fi and Cellular iPads share a file; different generations never do. Restoring the wrong device's IPSW simply fails — it cannot damage the device.

What does "signed" mean?

Apple's servers must approve a firmware before a device will accept it, and Apple only approves the builds it is currently shipping. A signed file can be restored today; an unsigned one is rejected at the end of the process, however you obtained it. Signing status changes without notice, usually within days of a newer release, which is why this catalogue rechecks it automatically.

Will I lose my data?

A Restore erases the device — that is what makes a downgrade possible. An Update with an IPSW keeps your data, but only when moving to a newer version. Either way, make an archived backup on a computer first; an iCloud backup taken on a newer version will not restore onto an older one.