ShadowReferenceFree online JSON formatter, JWT decoder & developer tools

JSON Formatter

Beautify JSON with instant validation.

JSON Validator

Check JSON syntax instantly.

JSON Minifier

Compact JSON for production payloads.

JSON to TypeScript

Generate TypeScript types from JSON.

YAML Validator

Validate and format YAML.

Encoding & URL

Encoding & URL→

Base64 Encoder / Decoder

Encode or decode Base64 text.

Encoding & URL→

URL Encoder / Decoder

Encode and decode URL strings.

Encoding & URL→

HTML Entity Encoder / Decoder

Escape and unescape HTML entities.

Security & Tokens

Security & Tokens→

JWT Decoder

Inspect JWT tokens without verification.

Regex & Text

Regex & Text→

Regex Tester

Test regex patterns with live matches.

Regex & Text→

Regex Escape / Unescape

Make text safe for regex patterns.

Date & Time

Date & Time→

Timestamp Converter

Convert Unix timestamps to dates.

Date & Time→

Date & Time Converter

Convert dates across common formats.

Web & HTTP

Web & HTTP→

URL Parser

Break down any URL into its parts.

Web & HTTP→

HTTP Status Code Reference

Quick reference for HTTP status codes.

Code Formatting

CSS Formatter / Minifier

Format or minify CSS.

HTML Formatter / Minifier

Format or minify HTML markup.

JavaScript Formatter / Minifier

Format or minify JavaScript (lightweight).

SQL Formatter

Make SQL readable.

Data Conversion

JSON to CSV

Turn JSON arrays into spreadsheet-ready CSV.

JSON ↔ YAML

Switch between JSON and YAML formats.

CSV ↔ JSON

Convert between CSV and JSON.

XML Formatter / Validator

Format and validate XML.

Cryptography

Cryptography→

Hash Generator

One-way cryptographic hashes in the browser.

Cryptography→

HMAC Generator

Generate HMAC signatures locally.

Developer Productivity

UUID Generator

Generate random UUID v4 identifiers.

Color Converter

Convert colors across formats.

Markdown Previewer

Write Markdown and preview rendered HTML.

Markdown File Reader

Read and preview Markdown files in your browser.

Code Compare

Diff two code blocks instantly.

cURL to Fetch

Turn cURL into fetch() code.

cURL to Axios

Turn cURL into Axios code.

QR Code Generator

Create QR codes locally.

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Featured Tools

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JSON Formatter

Beautify JSON with instant validation.

JSON Validator

Check JSON syntax instantly.

JSON Minifier

Compact JSON for production payloads.

JSON to TypeScript

Generate TypeScript types from JSON.

JSON to CSV

Turn JSON arrays into spreadsheet-ready CSV.