Developer Tools - Free Online Utilities

    Multiline Formatter
    Text Case Converter
    Lorem Ipsum Generator
    Text Sort & Dedup Tool
    Unicode & Emoji Browser
    CSV to JSON/XML Converter

    JSON Formatter
    JavaScript Formatter
    SQL Query Formatter
    XML Formatter & Validator
    Regex Tester
    Diff Tool
    Number Base Converter

    CSS Unit Converter
    CSS Formatter & Minifier
    HTML Entity Tool
    Markdown Editor & Preview
    Markdown to HTML Converter

    HTTP Request Builder
    QR Code Generator

    Hash Generator
    JWT Decoder
    Password Generator
    Base64 Encoder/Decoder
    URL Encoder/Decoder
    UUID/GUID Generator

    SVG Icon Generator
    Email Template Builder
    Image Optimizer & Converter
    Color Converter

    Environment Variables Manager
    Kubernetes YAML Generator
    Cron Expression Parser

    AI Prompt Generator & Optimizer
    OpenAI Token Counter & Cost Calculator
    AI-Powered Mock Data Generator

    World Time
    Timestamp Converter

    Developer Blog
    FAQ & Help
    Tools Comparison

HTTP Request Builder

Build, test, and format HTTP requests with visual interface. Generate cURL commands, format responses, validate JSON/XML, and export to popular API tools.

Request Summary

Method: GET

URL: https://api.example.com/users?limit=10

Headers: 2

Query Params: 1

Auth: No Auth

Body Type: JSON

Quick Actions