Developer tools.
No noise.

JSON Formatter

Pretty-print and format JSON

JSON → TypeScript

Generate TypeScript interfaces from JSON

JSON → Go Struct

Generate Go structs from JSON

JSON → Zod

Generate Zod schemas from JSON

JSON → PHP Class

Generate PHP class from JSON

JSON → C# Class

Generate C# classes from JSON

JSON Diff

Compare two JSON objects

CSV → JSON

Convert CSV to JSON array

JSON → CSV

Convert JSON array to CSV

JSON → Prisma

Generate Prisma schema from JSON

JSON → SQL INSERT

Generate SQL INSERT from JSON

YAML ↔ JSON

Convert between YAML and JSON

TOML ↔ JSON

Convert between TOML and JSON

Base64

Encode or decode Base64 strings

URL Encode / Decode

Percent-encode or decode URLs

JWT Decoder

Decode and inspect JWT tokens

JWT Builder

Build and sign a JWT with HS256

Hash Generator

Generate MD5 or SHA-256 hashes

API Key Generator

Generate cryptographically secure API keys

HMAC-SHA256 Signer

Sign webhook payloads with HMAC-SHA256

curl → Code

Convert curl to TypeScript fetch or Go http

Cron Parser

Decode cron expressions into plain English

Base Converter

Convert between decimal, hex, binary, octal

.env Validator

Check .env files for issues and duplicates

Regex Tester

Test regex patterns with real-time highlighting

Text Diff

Compare two plain text inputs line by line

SQL Patterns

Generate SQL patterns from table definition

Data Diff

Compare two JSON or CSV datasets

ETL Scratchpad

Build and export data pipelines in-browser

Case Converter

Convert between camelCase, snake_case, kebab-case

Slugify

Convert text to URL-friendly slug

UUID Decoder

Decode and inspect UUID metadata

Markdown → HTML

Convert Markdown to HTML

Markdown Workbench

Write Markdown with optional live preview and file export

Lorem Ipsum

Generate placeholder text

HTML Entities

Encode or decode HTML special characters

Color Converter

Convert between HEX, RGB, and HSL

Glue Code Generator

Generate DTO, Zod schema, Express handler, and curl

Migration Dry-Run

Analyze SQL migrations for risk

OpenAPI → TS Types

Generate TypeScript interfaces from OpenAPI spec

HTTP Status Codes

Reference for all HTTP status codes with descriptions

Webhook Inspector

Inspect webhook payloads, headers, and signatures

Dockerfile Generator

Generate multi-stage Dockerfiles for Node, Go, Python, PHP, Rust

Nginx Config

Generate nginx server blocks for PHP, Laravel, PM2, Next.js, API, SPA, and more

SSH Config Builder

Generate ~/.ssh/config Host blocks for quick, repeatable SSH connections

curl / wget Builder

Build curl or wget commands with auth, headers, body, and flags

SCP / rsync Builder

Build scp or rsync commands for uploading, downloading, or syncing files between hosts

UFW Rule Builder

Generate ufw firewall rules — allow, deny, limit, port ranges, IP restrictions, app profiles

Node.js Package Managers

npm · pnpm · bun · yarn equivalent commands side by side

Linux Package Managers

apt · pacman · yay · brew · dnf equivalent commands side by side

Cron Builder

Build cron expressions visually with presets and plain-English descriptions

Docker Run Builder

Build docker run commands with ports, env vars, volumes, restart policies

MariaDB / MySQL DSN Builder

Generate connection strings for CLI, Node.js, PHP, Go, Python, and Laravel

PM2 Ecosystem Builder

Generate ecosystem.config.js for Node.js or Bun with cluster mode and env vars

GitHub Actions

Generate GitHub Actions CI/CD workflows

Docker Compose

Generate docker-compose.yml with service templates

Systemd Unit

Generate systemd unit files for Linux services

.gitignore Generator

Generate merged .gitignore for any stack combination

Seed Data Generator

Generate realistic SQL INSERT statements from a CREATE TABLE schema

Schema Diff

Compare two CREATE TABLE definitions and see what changed

ERD to SQL

Convert plain-text entity relationships to CREATE TABLE SQL

Index Advisor

Get index recommendations from a SQL query

Fake Data Generator

Generate fake data rows as SQL, JSON, or CSV

SQL Formatter

Format and beautify SQL queries with proper indentation

px ↔ rem ↔ em Converter

Convert pixel values to rem and em units

CSS Specificity Calculator

Calculate and compare CSS selector specificity

Tailwind Class → CSS

Convert Tailwind utility classes to plain CSS

srcset Builder

Build responsive image srcset attributes and img tags

z-index Manager

Visualize and manage CSS z-index stacking order

Gradient Builder

Build CSS linear, radial, and conic gradients visually

Font Scale Generator

Generate a modular typographic scale with px and rem values

MRR / ARR Calculator

Calculate Monthly and Annual Recurring Revenue with churn and expansion metrics

Pricing Tier Designer

Design pricing tiers and export as Markdown and HTML comparison tables

CAC / LTV Calculator

Calculate Customer Acquisition Cost, Lifetime Value, and LTV:CAC ratio with health label

Churn Impact Simulator

Simulate month-by-month MRR impact of churn and new MRR over 6, 12, or 24 months

Stripe Webhook Events

Searchable reference of ~40 common Stripe webhook events with payload details

SaaS Metric Glossary

Searchable glossary of 25+ SaaS metrics with definitions, formulas, and examples

CSP Builder

Build Content-Security-Policy headers interactively

CORS Policy Builder

Configure CORS headers: origins, methods, credentials

Password Strength Analyzer

Analyze password entropy, crack time, and strength

Rate Limit Calculator

Calculate rate limiting config and get nginx/Express snippets

Security Headers Checker

Grade HTTP response headers for security best practices

Secret Entropy Checker

Check entropy and quality of API keys and tokens

bcrypt Hash Generator

Generate bcrypt hashes with configurable cost factor

Conventional Commit Linter

Validate commit messages against the Conventional Commits specification

Semver Bump Calculator

Calculate the next semantic version and get the git tag command

README Section Builder

Assemble a Markdown README by selecting and filling in sections

OpenGraph Preview

Preview Open Graph meta tags as Twitter/X, LinkedIn/Facebook, and Slack cards

Changelog Generator

Generate a formatted CHANGELOG.md section from conventional commits

API Changelog Diff

Compare two OpenAPI 3.x specs and get breaking and non-breaking changes