iOS Jailbreak Compatibility Database

iOS Jailbreak Checker

Instant compatibility lookup for every iPhone and iPad. Know exactly which exploits, tools, and iOS versions apply to your device — before you act.

Devices in DB
8+ Jailbreak Tools
iOS 1–18 Version Coverage
Last Updated
How It Works

Three steps to know
your jailbreak status.

01
Find Your Device

Select your iPhone or iPad from the dropdown, or enter its hardware identifier directly — e.g. iPhone10,3

02
Read the Results

Instantly see every iOS version range, its jailbreak status, available tools, and key notes in one clear table.

03
Choose Your Tool

Follow the recommended jailbreak tool for your exact iOS version. Verify with official documentation first.

04
Backup First

Always back up via iCloud or Finder/iTunes before any attempt. Data loss, while rare, is possible.

Compatibility Checker

Check your device.

jailbreak_checker — compatibility lookup
iOS Versions Status Tools Notes

Device not found. Check the identifier or select from the list.

Deep Dive

Understanding jailbreaking.

exploit_types.sh
$ describe bootrom_exploit checkm8 Loading exploit database... ✓ checkm8 — BootROM-level hardware exploit Chips: A5 through A11 (2011–2017) Devices: iPhone 4S → iPhone X Status: Permanent, cannot be patched
$ describe software_jailbreak kfd Loading... ⚠ kfd — Kernel data-forge exploit Chips: A12+ (iPhone XR and newer) Tool: Dopamine → iOS 16.0–16.5.1 Status: Patchable by Apple updates
$ query iOS 17 18 public_jb --a12plus ✗ No public jailbreak found for A12+ on 17/18 Exception: iPad 6th/7th gen via palera1n
$
What is Jailbreaking?

Jailbreaking removes Apple's software restrictions from iOS/iPadOS, granting root access to the file system. This enables custom themes, system tweaks, apps outside the App Store, and deep customisation Apple doesn't allow. A full restore returns the device to stock iOS with no lasting damage.

checkm8 — The Permanent Exploit

Discovered in 2019, checkm8 is a BootROM-level exploit affecting Apple silicon A5 through A11. Because it lives in read-only hardware memory, Apple can never patch it via software updates. These devices remain jailbreakable on virtually any iOS version — forever.

A5 · iPhone 4S A6 · iPhone 5 A7 · iPhone 5s A8 · iPhone 6 A9 · iPhone 6s / SE A10 · iPhone 7 A11 · iPhone 8 / X
Software Jailbreaks (A12+)

For A12+ devices (iPhone XR onwards), jailbreaks rely on kernel vulnerabilities in iOS — patchable with each update. Dopamine covers iOS 16.0–16.5.1. iOS 17 and 18 remain unjailbroken for these chips as of early 2026.

Semi-Tethered vs Untethered

Most modern jailbreaks are semi-tethered — rebooting removes the jailbreak state until you re-run the tool. Truly untethered jailbreaks that survive reboots without any tool are increasingly rare on modern iOS versions.

Arsenal

Popular jailbreak tools.

Every major tool from the early iOS days to today's checkm8 and kernel-exploit runners.

palera1n
A5–A11 · iOS 15–18 (select iPads)

checkm8-based command-line jailbreak. Supports A5–A11 iPhones up to iOS 16.x, and checkm8-vulnerable iPads (6th/7th gen, Pro 10.5/12.9 2nd gen) up to iPadOS 17–18.

Dopamine
A12–A15 · iOS 16.0–16.5.1

Rootless jailbreak for modern A12+ devices using the kfd exploit. The last known public jailbreak for iPhone XR and newer. No computer required after initial setup.

checkra1n
A5–A11 · iOS 12–14.8

The original checkm8-based GUI jailbreak. Stable and battle-tested for iOS 12 through 14.8 on checkm8 devices. Requires a Mac or Linux computer each reboot.

unc0ver
A9–A13 · iOS 11–14.8

Long-running semi-untethered jailbreak for iOS 11 through 14.8 across a wide range of devices. No longer actively updated but reliable for compatible versions.

Taurine
A9–A14 · iOS 14.0–14.4.2

Alternative to unc0ver for iOS 14. Uses libhooker instead of Substrate, widely regarded as faster and more stable on iOS 14 for supported devices.

Electra
A7–A11 · iOS 11.0–11.4.1

One of the first modern 64-bit jailbreaks covering all of iOS 11. Introduced libhooker as an alternative hooking engine to Cydia Substrate.

h3lix / Phoenix
32-bit · iOS 9–10

Jailbreaks for 32-bit devices. h3lix covers iOS 10; Phoenix was the last jailbreak for 32-bit hardware on iOS 9.3.5–9.3.6, released years after Apple stopped updates.

Legacy Tools
iOS 1–9 · Various devices

redsn0w, PwnageTool, absinthe, evasi0n, evasi0n7, Pangu, TaiG, Odyssey, Chimera — covering the complete history of iOS jailbreaking from 2007 through the mid-2010s.

Important Notes

Before you proceed.

Read Before Jailbreaking
Not Permanent

Rebooting a semi-tethered jailbreak removes all tweaks until you re-run the tool. Plan your reboots carefully.

Backup First

Always create a full backup via iCloud or Finder/iTunes before any jailbreak attempt. Data loss, while rare, can occur.

iOS 17 / 18 Status

No public jailbreak for iPhone XR and newer on iOS 17 or 18. Only checkm8-vulnerable iPads have options via palera1n.

Verify Compatibility

This database is a best-effort snapshot. Always verify with the official tool's documentation before proceeding.

FAQ

Frequently Asked Questions

Quick answers to common questions about jailbreak compatibility, tools, and device support.

What exactly does this checker do?
It compares your device identifier against a database of jailbreak statuses. You'll see which iOS versions are jailbreakable, recommended tools, and any special notes for your specific iPhone or iPad.
How do I find my device identifier?
Go to Settings → General → About and look for Model Number. Tap it to reveal the identifier like iPhone12,1. You can also use the dropdown and select your device model.
What does “semi‑tethered” mean?
After a reboot, your device is back to stock iOS. To re‑enable the jailbreak, you must run the jailbreak app again (no computer usually). Most modern jailbreaks work this way.
Is checkm8 really permanent?
Yes. checkm8 is a BootROM exploit burned into the hardware of A5–A11 chips. Apple cannot fix it with software updates, so those devices remain jailbreakable indefinitely.
Can I jailbreak iOS 17 or 18?
Only if you have a checkm8‑vulnerable iPad (6th/7th gen, Pro 10.5/12.9 2nd gen) and use palera1n. For A12+ iPhones there is no public jailbreak for iOS 17/18 as of early 2026.
Will jailbreaking void my warranty?
Technically yes, but you can fully restore your device with iTunes/Finder to remove all traces of jailbreak before seeking service — they won't know.
Is the data automatically updated?
The database (jb.json) is updated manually when new jailbreaks or device info become available. Check the “last updated” stat in the header.
I have an iPod touch – is it here?
iPod touches use similar identifiers (e.g. iPod9,1). You can enter the identifier manually — if it's in our DB, results will show. Otherwise try selecting an equivalent iPhone model with the same chip.