JSON Formatter

Hot

Format, minify, escape, and convert Unicode in JSON

JSON Editor

Hot

Visually edit JSON data, supports code mode and tree mode with real-time sync

HTML Formatter

Quickly format and beautify HTML code

JavaScript Formatter

Quickly format and beautify JavaScript code, supports ES6+

CSS Formatter

Quickly format and beautify CSS code

SQL Formatter

Quickly format and beautify SQL statements

HTTP Tester

Hot

Test HTTP/HTTPS APIs online, supports GET, POST, PUT, DELETE and more

WebSocket Tester

Test WebSocket connections online, view message history in real-time

Regex Tester

Test regular expressions online with real-time match results

File Hash Calculator

Calculate MD5, SHA-1, SHA-256 hashes of files, processed locally without upload

Text Encoder/Decoder

Encode/decode Base64, URL, HTML entities, and generate MD5 hashes

Text Diff

Hot

Compare two texts and highlight differences, supports line-by-line and character-by-character comparison

Cron Expression Generator

Generate and parse Cron expressions with second precision, preview next 5 execution times

JWT Parser

Parse JWT tokens, view Header, Payload, and Signature information

Nginx Config Generator

Generate various Nginx configuration files online, covering basic, security, advanced, and application scenarios

JWT Secret Generator

Generate secure random JWT secrets with selectable formats, lengths, and quantities

UUID Generator

Batch generate RFC 4122 compliant UUID v4 identifiers

.gitignore Generator

Select multiple project types and generate a merged, deduplicated .gitignore template

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Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates, supports seconds and milliseconds

JSON to PHP Array

Convert JSON format to PHP array format in real-time

JSON to TypeScript

Convert JSON format to TypeScript interface definitions in real-time

JSON to Go Struct

Convert JSON format to Go language struct definitions in real-time

JSON ⇄ XML

Convert between JSON and XML formats, supports bidirectional conversion

JSON ⇄ YAML

Convert between JSON and YAML formats, supports bidirectional conversion

JSON ⇄ Query String

Convert between JSON and URL Query String formats with automatic encoding/decoding

Docker Run ⇄ Compose

Convert between Docker Run commands and Docker Compose configuration files

CSV/Excel to JSON

Convert CSV or Excel files to JSON format, supports multiple sheets

Image Base64 Encoder

Convert between images and Base64 encoding, supports upload, drag & drop, and paste

Color Converter

Convert between HEX, RGB, HSL, CMYK and other color formats

App Icon Generator

Upload one image and generate all iOS, Android, macOS, watchOS, and Web app icons in one click

Password Generator

Generate secure random passwords with custom length and character types, batch generation supported

Image Color Picker

Upload or paste an image, click to extract pixel colors in HEX, RGB, HSL and more