Apps by Umit UZ
Jeyso: JSON Diff & Formatter app icon

Developer Tools

Jeyso: JSON Diff & Formatter

Umit UZ

Free download In-app purchases
Open on Apple

About this app

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.

Latest release

What’s New

Version 1.0.4 Jul 2, 2026

We've fixed bugs, improved performance, enhanced code quality, and made various stability improvements to deliver a smoother experience.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Sep 1, 2026 · 0 ratings Sep 1, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free 0×
Price history
Current Free
Free Sep 1, 2026 · Free Sep 1, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Sep 1, 2026 · 12:12 PM Free

Screenshots

Jeyso: JSON Diff & Formatter iPhone screenshotJeyso: JSON Diff & Formatter iPhone screenshotJeyso: JSON Diff & Formatter iPhone screenshotJeyso: JSON Diff & Formatter iPhone screenshotJeyso: JSON Diff & Formatter iPhone screenshotJeyso: JSON Diff & Formatter iPhone screenshotJeyso: JSON Diff & Formatter iPhone screenshotJeyso: JSON Diff & Formatter iPhone screenshot Jeyso: JSON Diff & Formatter iPad screenshotJeyso: JSON Diff & Formatter iPad screenshotJeyso: JSON Diff & Formatter iPad screenshotJeyso: JSON Diff & Formatter iPad screenshotJeyso: JSON Diff & Formatter iPad screenshotJeyso: JSON Diff & Formatter iPad screenshotJeyso: JSON Diff & Formatter iPad screenshotJeyso: JSON Diff & Formatter iPad screenshotJeyso: JSON Diff & Formatter iPad screenshot