JSON Editor

Text mode is best for pasting and raw edits. Tree mode is easier for nested objects. Table mode helps when arrays contain similar objects.

Pretty formatting adds line breaks and indentation. Compact formatting removes extra whitespace. Both keep the parsed JSON values the same.

Valid pasted JSON is added to history automatically. Use Save to history for edited documents you want to keep.

JSON needs double-quoted property names and strings. Single quotes, comments, and trailing commas are not valid JSON.

JSON object names should be unique. Different tools can handle duplicate names differently, so remove duplicates before sharing data.

Arrays are ordered lists. Moving an item can change the meaning even when the same values are still present.

After pasting compact JSON, switch to tree mode or use the editor format button so nested objects are easier to scan.

Local history is helpful for repeated debugging, but avoid saving secrets, tokens, or private customer data.

Compact JSON is useful when you need one-line output for logs, command-line tools, or chat messages.