Developer Utilities Tools

Convert a Postman v2.1 or Insomnia collection into cURL, HTTPie or fetch()

Convert unified git diff output to syntax-highlighted HTML

Visualize a regex as a railroad diagram with a plain-English breakdown

Explain Makefile targets, variables and the execution order of any goal

Lint shell scripts for shellcheck-style issues and get the corrected lines

Parse a GitHub Actions workflow and show job/step dependencies

Explore a HAR network log: waterfall, timings, sizes and findings

Generate mock API responses from a schema, example or field list

Generate GraphQL queries from a schema definition

Generate TypeScript interfaces from an OpenAPI schema

Apply a unified diff patch to source text

Convert GraphQL introspection JSON to SDL schema

Generate fetch/axios/curl code from raw HTTP request text

Convert a curl command into a JS fetch() call

Parse git log output into structured JSON

Build a curl command from method, URL, headers & body fields

Compute next major / minor / patch / prerelease

Parse combined log format lines into JSON (host, status, UA…)

Interactive sed command simulator

Interactive grep pattern matcher

Interactive AWK processor

Analyze file metadata, size, encoding, line count

Find duplicate files by comparing content hashes

Calculate rate limiting scenarios with token bucket algorithms and capacity planning

Run real round-robin, nginx smooth weighted, ketama consistent-hash, least-connections and power-of-two selection over a pool you describe

Run a seeded, reproducible circuit-breaker state machine over synthetic traffic and see exactly when it trips, opens and closes

Simulate latency impact on performance with waterfall analysis and cascading delays

Calculate Application Performance Index (APDEX) scores with satisfaction thresholds

Track error budget allocation and consumption with burn rate analysis

Analyze mean time to repair and incident metrics with P95 calculations

Estimate carbon footprint of computation and energy usage

Analyze power draw and requirements for multiple devices and UPS sizing

Test database connections for MySQL, PostgreSQL, SQLite with latency analysis

Parse SQL queries and extract structure (tables, columns, joins)

Analyze SQL queries for optimization suggestions and performance improvements

Explain SQL query execution with index analysis and optimization hints

Validate database schemas for naming conventions and best practices

Simulate database migration scenarios with data transformation and conflict detection

Simulate backup and restore operations with recovery time analysis

Simulate database replication scenarios with lag analysis and consistency checking

Build Docker commands with flags for run, build, exec, logs, and more

Analyze and optimize Dockerfiles for size, speed, and best practices

Validate docker-compose.yml files with warnings and best practices

Validate Kubernetes YAML manifests for correctness and best practices

Simulate Helm chart rendering with value overrides and manifest generation

Analyze Terraform execution plans with risk assessment and change summary

Simulate Ansible playbook execution with task results and status

Generate Vagrant configuration files for VM setup and provisioning

Simulate Docker registry operations (push, pull, list, delete images)

Model a Kubernetes rollout: exact pod counts per step for rolling, blue-green, canary and recreate, plus the manifest and kubectl commands

Build git commands with interactive options for clone, commit, push, pull, merge

Simulate and guide through git merge conflict resolution strategies

Parse a pasted unified diff for real insertion/deletion counts, per-file churn, test coverage of the change and risk signals in added lines

Simulate git blame functionality to see commit history and authorship of code lines

Work out how many tests a bisect needs, which commit git picks at each step, and replay the session over your own git log

Manage git submodules with add, update, remove, and list operations

Simulate gitflow workflow scenarios for features, releases, and hotfixes

Analyze and calculate semantic versioning with major, minor, patch increments

Generate changelog entries from commits in Keep a Changelog or Conventional formats

Validate commit messages against conventional and imperative style guidelines