JSON & API data Tools

Free JSON tools to format, minify, compare, and convert structured data.

JSON is widely used in APIs, configuration, and application data. These browser-based utilities help inspect valid JSON, identify differences, and convert simple records into other formats.

Tools in this category

JSON Formatter →JSON Minifier →JSON Diff →JSON to SQL Converter →CSV to JSON →

A useful workflow

Start with a small sample so you can quickly spot unexpected output.
Choose the tool that matches your source and target formats.
Review the output, especially empty values, duplicate records, quoting, and data types.
Keep a copy of the original data before making changes.

More guides

How to Format SQL Queries for Readability →How to Convert CSV to JSON Correctly →JSON Formatting: Syntax, Validation, and Common Errors →SQL JOINs Explained with Simple Examples →How to Clean CSV Data Before Analysis →How to Compare Two CSV Files →Unix Timestamps Explained: Seconds, Milliseconds, and Time Zones →Regular Expressions for Everyday Text Cleaning →

Explore more free tools

QueryCherry offers focused utilities for common data tasks. Basic tools are available without an account.

SQL Formatter →CSV Viewer →JSON Formatter →Duplicate Finder →Table Comparator →Regex Tester →

Review outputs before using them in production. Tool behavior and practical file limits can depend on your browser, device, and input.