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J-RAY PRO – A fast visual JSON profiler in Rust

J-RAY PRO – A fast visual JSON profiler in Rust

by MauryWebDev·Apr 26, 2026·2 points·0 comments
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AI Analysis

●●SolidEye CandyWizardry

Rust-powered JSON graph viewer that handles massive files without Electron bloat or browser crashes.

Strengths
  • •egui-based native rendering achieves 60FPS on GPU without Electron memory overhead
  • •Built-in JWT and Base64 decryption eliminates need for external token tools
  • •Array compression into 50-item decks prevents RAM exhaustion on huge datasets
Weaknesses
  • •Paid perpetual license when free alternatives like JSON Crack exist
  • •Visual graph approach may not suit developers who prefer raw text inspection
Target Audience

Developers working with large JSON datasets and API responses

Similar To

JSON Crack · JSON Viewer Pro · Dadroit JSON Viewer

Post Description

Hi HN,

Opening a massive JSON dump from a database or a heavy API response usually means watching your IDE freeze or your browser tab crash. Furthermore, pasting sensitive company payloads into online formatters is a huge privacy risk.

To solve this, I built J-RAY PRO. It's a native desktop engine written in Rust designed specifically to tame huge datasets locally.

Instead of a flat text wall, it generates an interactive node-based visual graph. Thanks to Rust and egui, it opens and parses files instantly without the typical Electron bloat (the binary is ~12MB). It also includes a Visual Diff engine and local API testing.

There is a 7-day free trial available for Windows, macOS (Silicon), and Linux so you can throw your biggest JSON files at it and see if it holds up.

I'm here to answer any questions about the tech stack, rendering massive graphs, or Rust in general. Feedback is highly appreciated!

Similar Projects

Developer Tools●●Solid

J-RAY – A privacy-first JSON visualizer with two-way binding

Turning nested JSON into a live node graph with bidirectional edits actually pays off — double‑click a node to change a value and the raw JSON updates instantly (and vice versa). It’s entirely client‑side for privacy, generates TypeScript interfaces on the fly, and is MIT‑licensed; next steps should focus on UX and performance for massive payloads and clearer import/export flows.

WizardrySolve My Problem
MauryWebDev
204mo ago