Jsontify

Ad-free, fast, private JSON viewer & editor

Paste JSON, drop a file, or Open

Explorer

Tree explorer will appear here once JSON is loaded

Inspector

Select a node to inspect it

Paste or open a file to begin
🔒 Processed in your browser - nothing is uploaded to our servers

JSON Editor

The raw pane is a full text editor, not a read-only preview - click into it and edit your JSON directly, character by character, with the same responsiveness you would expect from a code editor, even on documents that run into the tens of megabytes.

Jsontify never rewrites what you type. Pasting, typing, and editing leave your text exactly as entered - Format, Minify, and Repair are the only actions that change it, and each one is a single step you can undo with Cmd+Z (or Ctrl+Z) to get back to precisely what you had.

As you edit, the tree and inspector panels update live, so you can see the structural effect of a change - a new key, a removed array element - immediately, without switching views or manually re-parsing. If an edit breaks the JSON, the status bar shows the exact line and column of the problem instead of leaving you guessing.

Cmd+K (or Ctrl+K) searches the full document while you edit, useful for jumping to a specific key or value in a large file without scrolling through it by hand.

Frequently asked questions

Does the editor auto-format my JSON as I type?
No - your text is left exactly as typed or pasted. Formatting only happens when you explicitly click Format, Minify, or Repair.
Can I edit large JSON files without lag?
Yes - the raw pane is built to stay responsive on large documents, and parsing runs in a background worker so editing doesn't block on re-parsing.
What happens if I break the JSON while editing?
The status bar shows the exact line and column of the syntax error immediately, and the tree keeps showing your last valid structure, dimmed, until it's fixed.
Is anything I type sent to a server?
No. Editing, parsing, and every other action happen entirely in your browser - nothing is uploaded to our servers.