Developer Utilities Tools
curl ↔ fetch, git-log parser, regex visualiser, GraphQL builder.
60 tools · all run in your browser
Collection JSON → cURL
Convert Collection JSON v2.1 requests into cURL one-liners
Git Diff → HTML
Convert unified git diff output to syntax-highlighted HTML
Regex Visualizer
Visualize regex patterns as a readable railroad diagram (text)
Makefile Explainer
Parse a Makefile and explain each target and its dependencies
Shell Script Linter
Check shell scripts for common issues and bad practices
GitHub Actions Visualizer
Parse a GitHub Actions workflow and show job/step dependencies
HAR File Viewer
Parse and summarize HTTP Archive (HAR) files
API Response Mocker
Generate mock API JSON responses from a URL + method description
GraphQL Query Builder
Generate GraphQL queries from a schema definition
OpenAPI → TypeScript
Generate TypeScript interfaces from an OpenAPI schema
Diff Patch Applier
Apply a unified diff patch to source text
GraphQL Introspection → SDL
Convert GraphQL introspection JSON to SDL schema
HTTP Request Replayer
Generate fetch/axios/curl code from raw HTTP request text
cURL → fetch()
Convert a curl command into a JS fetch() call
Git Log Parser
Parse git log output into structured JSON
HTTP → cURL Builder
Build a curl command from method, URL, headers & body fields
SemVer Bump
Compute next major / minor / patch / prerelease
Apache/Nginx Log Parser
Parse combined log format lines into JSON (host, status, UA…)
Sed Simulator
Interactive sed command simulator
Grep Simulator
Interactive grep pattern matcher
AWK Simulator
Interactive AWK processor
File Properties
Analyze file metadata, size, encoding, line count
Duplicate File Finder
Find duplicate files by comparing content hashes
Rate Limiter Calculator
Calculate rate limiting scenarios with token bucket algorithms and capacity planning
Load Balancer Simulator
Simulate load balancer distribution algorithms (round-robin, weighted, consistent hashing)
Circuit Breaker Simulator
Simulate circuit breaker state transitions and failure recovery scenarios
Latency Simulator
Simulate latency impact on performance with waterfall analysis and cascading delays
APDEX Scorer
Calculate Application Performance Index (APDEX) scores with satisfaction thresholds
Error Budget Tracker
Track error budget allocation and consumption with burn rate analysis
MTTR Analyzer
Analyze mean time to repair and incident metrics with P95 calculations
Carbon Footprint Estimator
Estimate carbon footprint of computation and energy usage
Power Consumption Analyzer
Analyze power draw and requirements for multiple devices and UPS sizing
Database Connection Tester
Test database connections for MySQL, PostgreSQL, SQLite with latency analysis
SQL Parser
Parse SQL queries and extract structure (tables, columns, joins)
SQL Optimizer
Analyze SQL queries for optimization suggestions and performance improvements
Query Explainer
Explain SQL query execution with index analysis and optimization hints
Database Schema Validator
Validate database schemas for naming conventions and best practices
Data Migration Simulator
Simulate database migration scenarios with data transformation and conflict detection
Backup & Restore Simulator
Simulate backup and restore operations with recovery time analysis
Database Replication Simulator
Simulate database replication scenarios with lag analysis and consistency checking
Docker Command Builder
Build Docker commands with flags for run, build, exec, logs, and more
Dockerfile Optimizer
Analyze and optimize Dockerfiles for size, speed, and best practices
Docker Compose Validator
Validate docker-compose.yml files with warnings and best practices
Kubernetes Manifest Validator
Validate Kubernetes YAML manifests for correctness and best practices
Helm Chart Simulator
Simulate Helm chart rendering with value overrides and manifest generation
Terraform Plan Analyzer
Analyze Terraform execution plans with risk assessment and change summary
Ansible Playbook Simulator
Simulate Ansible playbook execution with task results and status
Vagrant Configuration Builder
Generate Vagrant configuration files for VM setup and provisioning
Docker Registry Simulator
Simulate Docker registry operations (push, pull, list, delete images)
Container Orchestration Simulator
Simulate container orchestration scenarios (deploy, scale, failover)
Git Command Builder
Build git commands with interactive options for clone, commit, push, pull, merge
Git Conflict Resolver
Simulate and guide through git merge conflict resolution strategies
Git Diff Analyzer
Analyze git diffs with statistics on changes, complexity, and impact assessment
Git Blame Simulator
Simulate git blame functionality to see commit history and authorship of code lines
Git Bisect Simulator
Simulate binary search through commit history to find regression-causing commits
Submodule Manager
Manage git submodules with add, update, remove, and list operations
Gitflow Simulator
Simulate gitflow workflow scenarios for features, releases, and hotfixes
Semantic Versioning Analyzer
Analyze and calculate semantic versioning with major, minor, patch increments
Changelog Generator
Generate changelog entries from commits in Keep a Changelog or Conventional formats
Commit Message Validator
Validate commit messages against conventional and imperative style guidelines