Developer Toolbox

Encode & Decode

Beautify, minify, validate, convert to XML/CSV

Beautify, minify, validate, convert to JSON

Base64 Encoder/Decoder

Base64 encode/decode for text and images

URL Encoder/Decoder

urlencode, urldecode, special character escaping

HTML encode/decode, strip tags, entity conversion

Convert between binary, octal, decimal and hexadecimal

CSV ↔ JSON Converter

Convert between CSV and JSON formats

CSV ↔ Markdown Converter

Convert CSV to Markdown tables and back

Compute MD5, SHA1, SHA256, SHA512 hashes

AES/DES Encryption

Symmetric encryption, CBC/ECB modes, 3DES

Parse and verify JWT tokens, Header/Payload/Signature

Password Generator

Secure random passwords, PINs, Diceware phrases

Date Calculator

Date add/subtract, difference, workdays, age

Cron Expression

Generate, parse, quick templates, next-run prediction

Unix Timestamp Converter

Unix timestamp converter, batch generate, timezone

Regex match, replace, debug and test

Compare text/code differences, side-by-side view

Case conversion, dedupe, sort, text statistics

Markdown Editor

Live edit & preview, WeChat theme, code highlight

Variable Name Converter

Convert between camelCase, snake_case and more (6 styles)

Code Beautifier

Format & minify HTML/CSS/JS/SQL

Generate UUID v4 in bulk, multiple formats

UserAgent Parser

Parse browser UA, detect device & OS

Complete ASCII table, character reference

IP geolocation, region, ISP lookup

Shorten long URLs, custom slugs, history

HTTP Status Codes

HTTP status code reference, categories, use cases

Beautify & minify SQL, syntax highlight, dialects

Subnet Calculator

CIDR calculation, IP range, usable hosts

TCP/UDP port reference, common service ports

Robots.txt Generator

Crawler rules, SEO optimization, Sitemap config

Image Compressor

Client-side compression, quality control, batch

Image Converter

Convert PNG/JPG/WebP, resize, Base64

QR Code Generator

Generate QR codes for WiFi, URLs, text

Color Converter

Convert between HEX, RGB, HSL, color picker

CSS Gradient Generator

Linear & radial gradients, multi-color stops, CSS code

Home Encode & Decode JSON Formatter

JSON Formatter

Online JSON beautify, minify, validate, convert to XML/CSV

JSON Input

Output Result

How to Use

Beautify

Format JSON with indentation and line breaks for easy reading

Minify

Remove whitespace and line breaks to reduce file size

Validate

Check whether the JSON syntax is correct and locate errors

Shortcuts

Ctrl+Enter Beautify
Ctrl+K Copy

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