ipsw

ipsw

A command-line tool for researching and reverse engineering Apple operating systems.

Runs as ipsw|macOS, Linux, Windows|blacktop.github.io

Open form in Otty otty.toml

Command form

ai-draft · 5 tasks · 21 fields

Download, inspect and extract Apple firmware. Covers 'download ipsw', 'info' and 'extract'; the many other subcommands (dyld, macho, kernel, ...) are not covered.

Opens the form; the finished command lands at your prompt, unrun

Run in Otty

otty gui ipsw

`ipsw download ipsw`

Download IPSWs

Download IPSW files (or just URLs, kernelcache or dyld cache) from ipsw.me. Filters by device, build or version.

Download IPSWsExample values, fixed in this page — nothing here reaches a terminal

Basic

Device*

string

Latest only

--latest

Output folder

directory

Advanced

Skip confirmation

--confirm

TasksEach one presets the form for one job

Latest IPSW for a device

devicelatestoutputconfirm

List download URLs

deviceversionbuildmacosurls

ParametersOnly these flags are editable in the form

Device

Product type, for example iPhone15,2.
string

--device-d

OS version

string

--version-v

Build ID

string

--build-b

Latest only

boolean

--latest

macOS IPSWs

boolean

--macos

URLs only

Print the download URLs instead of downloading.
boolean

--urls-u

Only kernelcache

Extract the kernelcache from the remote IPSW.
boolean

--kernel

Only dyld_shared_cache

boolean

--dyld

Skip confirmation

boolean

--confirm-y

Output folder

path

--output-o

`ipsw info`

Show IPSW info

Display information about an IPSW or OTA file.

Show IPSW infoExample values, fixed in this page — nothing here reaches a terminal

Basic

IPSW or OTA*

file

JSON output

--json

List contained files

--list

TasksEach one presets the form for one job

Show info

ipswjsonlist

ParametersOnly these flags are editable in the form

IPSW or OTA

path · positional 0

JSON output

boolean

--json-j

List contained files

boolean

--list-l

`ipsw extract`

Extract components

Extract the kernelcache, dyld_shared_cache, DeviceTree or other parts from an IPSW or OTA.

Extract componentsExample values, fixed in this page — nothing here reaches a terminal

Basic

IPSW or OTA*

file

Kernelcache

--kernel

Output folder

directory

TasksEach one presets the form for one job

Extract kernelcache

ipswkerneloutput

Extract dyld_shared_cache

ipswdylddyld_archoutput

ParametersOnly these flags are editable in the form

IPSW or OTA

path · positional 0

Kernelcache

boolean

--kernel-k

dyld_shared_cache

boolean

--dyld-d

dyld architectures

string · repeatable

--dyld-arch-aarm64e

DeviceTree

boolean

--dtree

SEP firmware

boolean

--sep

File regex

Extract files from the IPSW zip whose names match this regex.
string

--pattern-p

Output folder

path

--output-o

SourcesEvery flag above is checked against these

docs

-b, --build string iOS BuildID (i.e. 16F203) -y, --confirm do not prompt user for confirmation -d, --device string iOS Device (i.e. iPhone11,2) --dyld Extract dyld_shared_cache(s) from remote IPSW --kernel Extract kernelcache from remote IPSW --latest…

manualmaster 2026-10-27

raw.githubusercontent.com

docs

ipsw info <IPSW> [flags] -j, --json Output as JSON -l, --list List files in IPSW/OTA -r, --remote Extract from URL

manualmaster 2026-10-27

raw.githubusercontent.com

docs

ipsw extract <IPSW/OTA | URL> [flags] --dtree Extract DeviceTree -d, --dyld Extract dyld_shared_cache -a, --dyld-arch stringArray dyld_shared_cache architecture to extract -k, --kernel Extract kernelcache -o, --output string Folder to extract files to -p, --pattern string…

manualmaster 2026-10-27

raw.githubusercontent.com

Before it fills your prompt, Otty checks the installed ipsw against its version. A form that does not match your version is not offered.