Developer Tools

API Mock Data Generator

Generate realistic mock data for API testing

ASCII Art Generator

Generate ASCII art from text with multiple fonts and styles

ASCII <> HEX Converter

Convert between ASCII text and hexadecimal representation

Backslash Escape/Unescape

Escape and unescape backslashes in text

Base64 Encoder/Decoder

Encode and decode text or files using Base64 encoding

Color Converter

Convert between HEX, RGB, and HSL color formats

Crontab Generator

Create crontab expressions visually with human-readable descriptions

CSV <> JSON Converter

Convert between CSV and JSON data formats

CSV Visualizer

Visualize CSV data as HTML tables with export options

CURL Constructor

Build CURL commands for terminal execution with customizable options

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes

JSON Beautifier/Minifier

Format and compress JSON with syntax highlighting

JSON to Protobuf

Generate Protocol Buffer definitions from JSON examples

JSON/YAML Explorer

Visualize and explore JSON and YAML data with interactive tree view

JSON <-> YAML Converter

Convert between JSON and YAML formats with validation

JWT Decoder

Decode and inspect JSON Web Tokens (JWT)

Line Sort/Dedupe

Sort lines alphabetically and remove duplicates

Markdown Preview

Preview Markdown with live rendering

Mermaid Diagram Editor

Create diagrams with Mermaid syntax and live preview

OCR Tool

Extract text from images and PDFs using offline OCR

QR Code Reader/Generator

Generate QR codes from text or URLs, and scan QR codes from images

Random Password Generator

Generate secure random passwords with customizable options

Random String Generator

Generate random strings with patterns and custom options

Secret Share

Securely share encrypted messages with password protection

Regular Expression Tester

Test and validate regular expressions with live results

String Case Converter

Convert between camelCase, snake_case, kebab-case and more

Text Diff Utility

Compare two text blocks and highlight differences

Timestamp Converter

Convert between various timestamp formats and human-readable dates

URL Encoder/Decoder

Encode and decode URLs and URL components

URL Parser

Parse and extract components from URLs

URL to Markdown

Scrape URL content and convert to Markdown format

UUID Generator

Generate random UUIDs in version 4 format

Vim-Style Code Editor

Browser-based text editor with Vim key bindings

IP Address Lookup

Get detailed information about any IP address including geolocation, ISP, and network details

SSL/TLS Certificate Checker

Analyze SSL/TLS certificates for any domain and check their security status

Subnet Calculator

Calculate subnet information, IP ranges, and network details from CIDR notation