JSON Formatter
Validate, beautify, minify, sort, search and export structured JSON.
DEVELOPER
TOOLS.
Browse free online developer tools by Flowties, including JSON Formatter, Base64 Encoder and Decoder, URL Encoder and Decoder, Regex Tester, Markdown Preview, HTML Viewer and Preview, HTML Entity Encoder and Decoder, Query String Parser.
Base64 Encoder & Decoder
Encode text or files and safely decode Base64 content.
URL Encoder & Decoder
Encode URLs, decode components and inspect query strings.
Regex Tester
Test patterns, flags, matches, groups and replacements.
Markdown Preview
Write Markdown with a safe, instant rendered preview.
HTML Viewer & Preview
Edit, sandbox, inspect, download and open HTML full-screen in a new tab.
HTML Entity Encoder & Decoder
Encode or decode HTML-safe named and numeric entities.
Query String Parser
Turn URL query parameters into JSON and rebuild them.
Browser & Screen Info
Inspect viewport, pixel ratio, platform and browser capabilities.
YAML ↔ JSON Converter
Convert, validate and format YAML and JSON in either direction.
XML ↔ JSON Converter
Convert XML documents and JSON structures with validation.
HTML Minifier
Minify HTML while preserving optional comments and whitespace.
CSS Minifier
Compress CSS and compare original and final size.
JavaScript Minifier
Minify modern JavaScript and inspect errors before download.
SQL Formatter
Format SQL by dialect with indentation and keyword controls.
Cron Expression Parser
Explain cron expressions and preview upcoming run patterns.
Email Validator
Validate email syntax and inspect its local and domain portions.
Data URI Generator
Convert files to embeddable data URIs with copy and download actions.
JSON Schema Validator
Validate JSON against a supplied JSON Schema and inspect errors.
HTTP Status Reference
Search HTTP status codes with clear meanings and usage guidance.
JSON to XML
Convert between JSON and XML formats.
SQL to CSV
Convert SQL INSERT statements to CSV format.
CSV to HTML
Convert CSV data to an HTML table.
JSON to HTML
Convert JSON data to formatted HTML.
JSON Schema Generator
Generate a starter JSON Schema from sample JSON.
Regex Builder
Create starter regex patterns from common plain-English requests.
JWT Generator & Verifier
Generate unsigned JWTs and inspect simple payloads locally.
JSONPath Tester
Evaluate simple JSONPath expressions against JSON data.
XPath Tester
Evaluate XPath expressions against XML documents.
OpenAPI Validator
Validate the basic structure of OpenAPI JSON documents.
GraphQL Formatter
Format GraphQL queries and mutations for readability.
Dockerfile Linter
Check Dockerfiles for common missing or risky instructions.
ENV Parser
Parse .env files into JSON for inspection.
SQL Minifier
Compress SQL by removing comments and extra whitespace.
JSON Diff
Compare two JSON documents and show changed lines.