XML / JSON Viewer vs Jeyso

Instantly format and view XML or JSON files offline. Even broken data displays partially, keeping your workflow uninterrupted. Copy in 4 formats: Pretty, Raw, Key+Value, Value Only. Handles files up to 10MB smoothly, with preview mode for larger files. 【Key Features】 ・Auto-detect format with syntax highlighting ・Partial display for malformed data ・4 copy formats for flexible reuse ・Large file preview for smooth operation ・Light/Dark theme support 【Perfect For】 Developers, system engineers, API users, students—anyone working with XML/JSON daily. 【Privacy】 Your files are processed entirely on your device and are never uploaded. This app shows ads, which may use the network; upgrade to Pro to remove them. 【Pro】 A single one-time Pro purchase removes all ads and unlocks full content for large files, advanced copy, and regex search.

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.