JSON 編輯器
進階 JSON 編輯器，具備即時驗證和專業編輯功能
功能特點
專業工具
Live Validation
Real-time syntax checking with precise error locations as you type, so you catch mistakes instantly
Syntax Highlighting
Color-coded keys, strings, numbers, booleans, and null values for easy visual parsing
Auto-Formatting
One-click beautification with customizable indentation to keep your JSON clean and readable
Undo & Redo
Full edit history so you can experiment freely and revert any changes with keyboard shortcuts
Search & Replace
Find and replace values across your entire JSON document with support for nested structures
Local Processing
Your JSON data stays in your browser — nothing is uploaded or stored on any server
常見問題
常見問題
What makes this better than editing JSON in a text editor?
Real-time validation catches syntax errors as you type — missing commas, unmatched brackets, invalid values. A plain text editor won't tell you your JSON is broken until you try to parse it.
Can I edit large JSON files?
Yes, the editor handles files up to 100MB. For very large files, the syntax highlighting and validation continue working but may have a slight delay. Use the minify button to reduce file size if needed.
Does it support JSON5 or JSONC (JSON with comments)?
The editor works with standard JSON (RFC 8259). JSON5 features like trailing commas, comments, and unquoted keys are not supported since most APIs and parsers require strict JSON.
Can I undo my changes?
Yes. The editor maintains a full undo/redo history. Use Ctrl+Z (Cmd+Z on Mac) to undo and Ctrl+Shift+Z to redo. The history persists until you close the page.
Is my data saved anywhere?
No. Everything runs locally in your browser. Your JSON data is never sent to any server, stored in any database, or logged in any way. Close the tab and the data is gone.
掌握 JSON 開發與編輯
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