JsonStudio
The Pro JSON Desktop App

JsonStudio

A fast, modern desktop JSON app built for daily development. The all-in-one workspace for every JSON task, designed to redefine your workflow efficiency.

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$ brew install --cask sundegan/tap/json-studio
$0
Free & Open Source
<1s
Launch Time
3
Platforms
10+
Themes
100%
Local & Private

Built for Real-World JSON Work

JsonStudio is shaped around the payloads developers actually handle: API responses, escaped strings, JSON5-like fragments, nested objects, and logs where text and JSON are mixed.

Local-first

No network required, no browser tab juggling, no ads, and no upload risk. Your sensitive JSON stays on your machine while native shortcuts, always-on-top, and local file handling keep the workflow quick.

Smarter formatting

Handles strict JSON, JSON5-like input, escaped JSON strings, trailing commas, unquoted keys, repairable fragments, and paste auto-formatting.

Review complex data

Tree view, JMESPath/JSONPath query, real-time statistics, and side-by-side diff make large payloads easier to read and verify.

Daily file workflow

Multi-tabs, numbered Untitled documents, reused tabs for reopened files, unsaved prompts, optional auto-save, drag-and-drop, and file association.

Developer toolbox

Prettify, minify, escape, unescape, minify + escape, fold/unfold, Schema generation/validation, format conversion, and typed code generation.

JsonStudio Screenshot

Core Features

Built for daily JSON work: prettify, view, query, log extraction, Diff, Converter, JSON Schema, Code Gen, and Minify/Escape.

EDITOR

Professional JSON Formatter & Viewer

Built on Monaco Editor (the engine of VS Code), delivering a top-tier JSON/JSON5 formatting and prettify experience.

  • Syntax highlighting with bracket pair colorization
  • Multi-tab editing with drag-and-drop reordering
  • Code folding, minimap, and find & replace
  • Auto-detect and format pasted JSON, JSON5, and escaped JSON
  • Preserve original object key order by default during formatting
  • 10+ color themes including Dracula, Nord, and One Dark

Learn more →

JSON Editor
NAVIGATE

Tree View, JMESPath & JSONPath Query

Visualize complex JSON/JSON5 structures as an interactive tree. Navigate, search, and query with ease.

  • Collapsible tree with type-colored icons
  • Click any node to jump to its position in the editor
  • Copy path and value with one click
  • Switch between JMESPath and JSONPath query modes
  • Real-time match highlighting with automatic ancestor expansion
  • Resizable panel width for comfortable viewing
JSON Tree View
LOGS

Extract JSON from Logs and Mixed Text

When logs, error stacks, or API debug text contain structured payloads, JsonStudio finds the useful fragments without replacing your original editor content.

  • Detect JSON, JSON5-like, escaped JSON, and repairable fragments
  • Group multiple fragments so each result is easy to inspect and copy
  • Keep the source text unchanged while showing formatted output in a panel
  • Resizable panel width and height for long debugging sessions
Log JSON extraction
CONVERT

JSON Converter

Convert JSON to YAML, XML, TOML, and CSV without leaving the desktop workflow.

  • Bidirectional conversion: JSON ↔ YAML, XML, TOML, CSV
  • CSV rainbow column highlighting for readability
  • Clean dedicated conversion view with format selectors
  • Useful when moving payloads between APIs, config files, and data tools

Converter →

JSON Converter
CODE GEN

Typed Code Generation

Generate type-safe models from JSON, or extract JSON back from supported code snippets.

  • Generate TypeScript, Go, Python, Java, Rust, and more
  • Reverse conversion: paste code to extract JSON
  • Quickly bootstrap DTOs, API models, and config types
  • Keep generated structures close to the source payload

Code Gen →

Code Generation
SCHEMA

JSON Schema Generation & Validation

Generate JSON Schema from any JSON data, or validate your data against an existing schema — all in a dedicated view.

  • One-click schema generation from JSON data
  • Validate JSON against any JSON Schema with detailed error reports
  • Dedicated schema page with side-by-side editing

Learn more →

JSON Schema
EFFICIENCY

Shortcuts, Auto-Save & File Workflow

Native desktop capabilities keep JSON work close to everyday development: open, save, watch, and reuse tabs with less friction.

  • Global shortcut to launch or bring the app to front instantly
  • One-key paste & prettify: format clipboard JSON instantly
  • Optional auto-save for modified file-backed tabs
  • Reopen the same file into the existing tab instead of duplicating it
  • Prompt before closing unsaved work; auto-number new documents as Untitled-1, Untitled-2
  • Window always-on-top toggle for multitasking
  • File association: double-click .json to open directly, with external change detection
Settings & Shortcuts
TOOLS

JSON Diff, Minify/Escape & More Tools

A practical toolbox focused on JSON Diff, minify/escape, repair, and export.

  • Side-by-side diff with inline change highlighting
  • Diff mode also supports auto-formatting after paste
  • Diff line count statistics in status bar
  • Escape / unescape / minify utilities
  • Drag & drop JSON files to open instantly
  • Export JSON as beautiful images with syntax highlighting for easy sharing

Learn more →

JSON Diff

And Much More

Every detail is crafted for developer productivity.

JSON Repair

One-click auto-repair of invalid JSON — fix missing quotes, trailing commas, and more.

Log JSON Extraction

Find JSON, JSON5-like, escaped JSON, and repairable fragments in logs and mixed text.

Auto-Save

Automatically save modified file-backed tabs, with a prompt before closing unsaved work.

JSON5 Support

The editor, formatter, tree view, and paste normalization understand flexible JSON5 syntax.

Lightweight

Small install size and low memory footprint, powered by Tauri and Rust.

Instant Launch

Launches in under a second. No loading screens, no waiting.

Cross-Platform

Available on macOS, Windows, and Linux with native look and feel.

10+ Themes

Dracula, Nord, One Dark, Solarized, and more. Switch between light and dark with one click.

Image Export

Export JSON as beautiful images with syntax highlighting for easy sharing, powered by Rust-native rendering.

JSON Statistics

Real-time display of key count, nesting depth, byte size, and line count.

i18n Support

Full Chinese and English interface with one-click language switching.

100% Offline

All data stays on your machine. No server, no upload, complete privacy.

Why JsonStudio?

See how JsonStudio compares to online JSON tools and other editors.

Feature Online Tools JsonStudio
Offline / No Internet Required ✗ ✓
Data Privacy (100% Local) ✗ ✓
Large JSON Data Performance ✗ ✓
Multi-tab Editing ✗ ✓
Tree View & JMESPath / JSONPath Query ✗ ✓
Log-like Text JSON Extraction ✗ ✓
JSON5 Parsing and Formatting ✗ ✓
Auto-Save and Reusable File Tabs ✗ ✓
Ad-Free Experience ✗ ✓
Global Shortcuts & Custom Keybindings ✗ ✓
Image Export ✗ ✓
Local File Operations ✗ ✓
Custom Settings (Theme, Font, Spacing, Shortcuts...) ✗ ✓
JSON Schema Generation & Validation ✓ ✓
Code Generation ✓ ✓
JSON Converter (YAML/XML/...) ✓ ✓
JSON Diff ✓ ✓

Built with Modern Tech

Leveraging the best tools for performance, security, and developer experience.

Rust
JavaScript
Tauri 2.0
Svelte 5
Monaco Editor

More Resources

JSON FormatterFormat, validate, and repair JSON/JSON5 JSON Diff ToolCompare JSON files and API responses side by side JSON ConverterConvert between YAML, XML, TOML, and CSV JSON SchemaGenerate and validate schemas Code GeneratorGenerate typed code from JSON