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Development & Code

Essential tools for developers and programmers

15Tools
3Subcategories

All Tools

15 tools
HOT

Smart JSON Formatter

Beautify, validate, and minify JSON data

JSONformatvalidate

Multi-Language Code Highlighter

Syntax highlighting for 50+ programming languages

codesyntaxhighlight
HOT

Regex Expression Tester

Visualize regex matching process

regextestpattern

API Request Simulator

Test REST/GraphQL API endpoints

APIRESTGraphQL

WebSocket Debug Console

Real-time WebSocket communication monitoring

WebSocketdebugrealtime
NEW

CSS Grid Generator

Drag-and-drop grid layout design

CSSgridlayout

Flexbox Visual Editor

Interactive Flexbox learning tool

flexboxCSSlayout

Responsive Design Tester

Real-time preview across multiple device sizes

responsivemobilepreview

PWA Manifest Generator

Generate complete PWA configuration files

PWAmanifestapp

Performance Budget Calculator

Calculate website loading performance targets

performancespeedoptimization

Base64 Encoder/Decoder

Base64 conversion for text, images, and files

base64encodedecode

JWT Token Decoder

Parse and validate JWT token contents

JWTtokendecode

Data Format Converter

JSON↔XML↔YAML↔CSV mutual conversion

JSONXMLYAML

Hash Value Generator

MD5, SHA-1, SHA-256 and more hash calculations

hashMD5SHA

URL Parameter Analyzer

Parse, build, and encode URL parameters

URLparameterparse