Built for macOS & iPad

DECODE. VERIFY. SIGN. ONE APP, ALL FREE.

The privacy-first JWT tool. Native on Mac and iPad. Zero data collection. Works entirely offline.

Download Free Try Demo ↓

Try It Yourself

Paste any JWT to decode it instantly. No data leaves your browser.

Segments

Encoded Value

JWT

Header Payload Signature

Algorithm HMAC using SHA-256

Secret:

Decoded Header

Decoded Payload

Try it here, get the full experience in the native app

EVERYTHING

YOU NEED.

Privacy First

Zero telemetry. Zero analytics. Your JWTs, secrets, and private keys stay on your device — always.

Native Performance

Built with SwiftUI and CryptoKit. Instant decoding as you type. Real-time signature verification.

Apple Intelligence

On-device AI generates meaningful names for your JWT history. Smart organization without compromising privacy.

All Algorithms

Full support for HMAC (HS256-512), RSA (RS256-512), and ECDSA (ES256-512) signing algorithms.

Liquid Glass

Fully optimized for macOS Tahoe and iPadOS with translucent materials, vibrant colors, and fluid animations.

Multilingual

Available in English, German, Spanish, and French. Automatically adapts to your system preferences.

WHY

SEGMENTS?

Feature	Segments	Web Tools
Privacy	Data stays local	Sent to servers
Speed	Native performance	Browser overhead
Offline	Works anywhere	Requires internet
Security	No data collection	Unknown handling
Integration	macOS & iPad native	Browser tab
Mobility	Debug on the go	Desktop only

FAQ.

How do I get Segments?

Segments is available on the App Store for both macOS and iPad. Download it today and start debugging JWTs with confidence.

Does it work offline?

Yes. Segments works 100% offline. It never makes any network requests. Your tokens and secrets never leave your device.

What about security?

Segments uses Apple's CryptoKit for all cryptographic operations, stores data only in local UserDefaults, and never transmits anything over the network.

Do I need Apple Intelligence?

No. Apple Intelligence features are optional and only enhance the experience with AI-generated names for your JWT history. All core functionality works without it.

Which algorithms are supported?

Segments supports HMAC (HS256, HS384, HS512), RSA (RS256, RS384, RS512), and ECDSA (ES256, ES384, ES512).

Is there an iPad version?

Yes. Segments is available for iPad with full feature parity — same privacy, native performance, and all algorithms.

READY TO DEBUG
SMARTER?

Join developers who've upgraded from web-based JWT tools to a native, privacy-first experience.

Download on App Store

Requires macOS Tahoe or iPadOS 26. Free forever.