Jeyso: JSON Diff & Formatter
Umit UZ Developer Tools iPhoneiPadiPod touch
Jeyso: JSON Diff & Formatter is a free Developer Tools app for iPhone and iPad by Umit UZ. Requires iOS 17.0. Updated July 2, 2026.
- Price
- Free
- on the App Store
- Size
- 5 MB
- Age 4+
- Updated
- Jul 2
- 2026 · v1.0.4
Screenshots
About Jeyso: JSON Diff & Formatter
Master the art of data engineering with Jeyso, the premium JSON formatting studio designed for absolute focus and technical excellence. Whether you're debugging a complex API response or optimizing your data structures, Jeyso provides a sophisticated platform to manage your JSON through a high-fidelity, intuitive interface. With advanced formatting modules and an intelligent validation framework, Jeyso eliminates the noise of cluttered developer apps. Experience a refined way to stay organized, featuring immersive history logs and high-fidelity project management that celebrates your technical achievements in a secure and professional environment. KEY HIGHLIGHTS: • Advanced JSON Formatting: Master your data with high-fidelity support for large JSON structures of up to 1,000,000 characters with absolute precision. • Comprehensive Validation Studio: Validate and optimize your JSON through a streamlined, intuitive dashboard with customizable indentation controls. • Intelligent History Framework: Monitor your data journey and revisit your projects with a high-fidelity log of up to 100 entries and 30-day retention. • Mindful Developer Experience: A sleek, professional design optimized to reduce cognitive load and foster deep technical focus. • Secure Data Registry: Document your JSON history and revisit your favorite structures with a high-fidelity history system. • Privacy First: Your data is personal. Jeyso processes all your JSON locally on your device—we never access or share your private technical records. WHY JEYSO? Most JSON tools feel generic and cluttered. Jeyso is designed with care — smooth animations, high-fidelity technical interactions, a refined design system, and a formatting framework that's actually robust. It's the developer companion you'll keep coming back to.
What’s new
Version 1.0.4 · Updated July 2, 2026
We've fixed bugs, improved performance, enhanced code quality, and made various stability improvements to deliver a smoother experience.
App privacy
The developer, Umit UZ, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Jeyso: JSON Diff & Formatter | – | Free | July 2, 2026 | |
| JSON Formatter Simple Parsing | – | Free | Jan 14, 2026 | Compare |
| Accessible JSON Viewer | – | Free | Feb 23, 2026 | Compare |
| NeuraMesh: AI Dev Team | – | Free | Jul 14, 2026 | Compare |
| JettDB | – | Free | Aug 4, 2026 | Compare |
| JSON Viewer: Formatter, Tree | – | Free | Sep 16, 2026 | Compare |
| iStructly | – | Free | Nov 10, 2025 | Compare |