Format, prettify, minify, and validate JSON data instantly with customizable indentation and key sorting
Instantly convert single-line or cluttered JSON into clean, readable code with 2-space, 4-space, or Tab indentation.
Remove whitespace and newlines to compress payload sizes for API calls, configuration files, or database storage.
Sort JSON object keys alphabetically for easy diffing, and fix common errors like single quotes or trailing commas.
Hop to nearby dev utilities without losing context.
Quick steps so you can get results fast.
Input text, code, or payloads directly. Most tools auto-detect format and encoding.
Choose the transform—format, validate, convert, or decode. Defaults match the current tool.
See live output alongside the input so you can spot issues before copying.
Copy results to clipboard or export when available. No signup needed.
Everything you need to know about JSON Formatter.
Answers to the most common devtool questions.
Most dev tools run entirely in your browser. For tools that need server help, requests are encrypted.
No. Inputs are kept in-memory in your session. Nothing is logged for formatting or validation tools.
Yes. Common shortcuts like Ctrl/Cmd + A/C/V work. Some tools also support Ctrl/Cmd + Enter to run.
We preserve semantics. Converters and formatters avoid altering values, only structure and spacing.
Use the feedback link in the header or share a sample payload. We typically patch fixes within a day.