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FreeFormatHub

Development Tools

Tools for software development and coding

14 tools available

Available Tools

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Git Diff Visualizer

Advanced Git diff analysis with visual representation, code quality assessment, security insights, and comprehensive change impact analysis

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JSON Flattener

Flatten nested JSON objects to flat key-value pairs or unflatten back to nested structure with customizable delimiters and array handling

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JSON Path Extractor

Extract specific values from JSON data using JSONPath expressions. Supports complex queries, filtering, and multiple output formats for data analysis and processing.

json jsonpath
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Configuration File Validator

Comprehensive validation for configuration files including JSON, YAML, TOML, XML, Dockerfile, Nginx, Apache configs with syntax, security, and best practices checking

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Validate YAML - YAML Validator & Syntax Checker

Validate YAML syntax online with comprehensive error checking, indentation validation, and structure analysis. Free YAML validator for configuration files, Docker Compose, Kubernetes manifests, and more.

validate yaml yaml validator
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SQL Query Builder

Build and format SQL queries with an intuitive interface. Support for multiple database systems and query types with syntax validation and optimization suggestions.

sql query
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Database Schema Visualizer

Visualize database schemas with interactive ERD diagrams, analyze table relationships, detect normalization issues, and generate performance and security recommendations.

database schema
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Database Query Optimizer

Analyze and optimize SQL queries with performance suggestions, index recommendations, and database-specific best practices

sql database
Zap

Load Testing Configuration Generator

Generate comprehensive load testing configurations for popular frameworks like K6, JMeter, Artillery, Locust, and more

load testing performance
Zap

Performance Budget Calculator

Calculate comprehensive performance budgets for web applications with Core Web Vitals, resource limits, and framework-specific optimization guidance

performance budget
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Log Analysis Tool

Comprehensive log file analysis with security, performance, and traffic insights for Apache, Nginx, and other web server logs

CLI Commands Reference

Comprehensive searchable reference for CLI commands across Linux, macOS, Windows, PowerShell, Docker, and Git with examples, flags, and safety information

cli command line

AI CLI Assistant

Comprehensive reference for AI and developer tool command-line interfaces including Claude Code, Ollama, OpenAI CLI, and more

Emoji Reference

Comprehensive emoji reference with Unicode values, HTML codes, CSS codes, and shortcodes for developers and content creators

Why Use Our Development Tools?

Free Forever

No registration, no limits, no hidden costs. Use all tools for free.

Lightning Fast

Instant processing with optimized algorithms and modern web tech.