JSON Formatter & Validator
Format, minify, and check JSON syntax locally. Preserve large numbers and original value tokens, with optional key sorting.
LeetTools · Formatters
Formatters Tools
Format and validate JSON syntax without rounding large numbers, or compare JSON and plain text with highlighted differences. Both tools process your text locally in the browser.
Get the job done
Formatters tools
JSON Diff & Text Diff Viewer
Compare JSON, API responses, configuration files, and plain text locally with line-level and word-level highlights.