Core Data

Core Data

Apple
+
+

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About

Use Core Data to save your application’s permanent data for offline use, to cache temporary data, and to add undo functionality to your app on a single device. To sync data across multiple devices in a single iCloud account, Core Data automatically mirrors your schema to a CloudKit container. Through Core Data’s Data model editor, you define your data’s types and relationships, and generate respective class definitions. Core Data can then manage object instances at runtime to provide several features. Core Data abstracts the details of mapping your objects to a store, making it easy to save data from Swift and Objective-C without administering a database directly. Core Data’s undo manager tracks changes and can roll them back individually, in groups, or all at once, making it easy to add undo and redo support to your app. Perform potentially UI-blocking data tasks, like parsing JSON into objects, in the background.

About

SafeJSON is an all-in-one local JSON toolkit built exclusively for developers. All parsing, comparison, JWT decoding and validation runs 100% inside your browser, with zero user data uploaded to external servers. Core features include standard JSON formatter, visual JSON Diff, JWT token decoder, JSONPath query engine, and JSON Schema validator. It supports huge 50MB+ JSON files powered by Web Workers, dark mode, collapsible tree views, and one-click raw JSON export. Users can independently verify full privacy via Chrome DevTools Network panel — no API keys, tokens or confidential payloads leave your device. The core toolset is permanently free, with advanced features (Diff & JWT) available via SafeJSON Pro ($5/month or $39/year). The full codebase is fully open-source on GitHub for full audit.

Platforms Supported

Windows Not Supported
Mac Supported
Linux Not Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Platform developers needing a tool to persist or cache data on a single device

Audience

Frontend & backend engineers, API testers, DevOps, security developers, full-stack programmers who work with JSON and auth tokens daily

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

$5/month, $39
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Supported

Training

Documentation Not Supported
Webinars Supported
Live Online Not Supported
In Person Supported

Company Information

Apple
Founded: 1976
United States
developer.apple.com/documentation/coredata

Company Information

SafeJSON
Founded: 2025
United States
safejson.dev

Alternatives

CloudKit

CloudKit

Apple

Alternatives

JSON Crack

JSON Crack

ToDiagram
IndexedDB

IndexedDB

Mozilla
Realm

Realm

Realm DB
Liquid Studio

Liquid Studio

Liquid Technologies
LiteRT

LiteRT

Google
Liquid Studio

Liquid Studio

Liquid Technologies

Categories

Categories

JSON Editors Supported

Integrations

CloudKit Supported
JSON Supported
Objective-C Supported
Swift Supported
iCloud Supported

Integrations

CloudKit Not Supported
JSON Not Supported
Objective-C Not Supported
Swift Not Supported
iCloud Not Supported
Claim Core Data and update features and information
Claim Core Data and update features and information
Claim SafeJSON and update features and information
Claim SafeJSON and update features and information