Developer tools that work locally

Fast, private, client-side utilities for everyday development.

100% client-side — your data never leaves your browser

Developer Tools

URL & Links

Short URL

Create and track short links

QR Code

Generate QR codes from any text

URL Parser

Parse, build, and inspect URLs

Git & Versioning

Git Command

Common Git command reference and cheatsheet

Commit Message

Generate conventional commit messages

Semver

Parse, compare, and bump semantic version strings

Changelog

Generate CHANGELOG entries from commit history

.gitignore

Generate .gitignore files for any stack or framework

Cryptography

Hash

MD5, SHA-256, SHA-512 hashing with file upload

AES

AES-GCM encryption with password or raw key

RSA

RSA key generation, encrypt/decrypt, sign/verify

HMAC

HMAC-SHA256/384/512 message authentication

PBKDF2

PBKDF2 password hashing and verification

JWT Decoder

Decode JWT tokens and inspect claims

Security Headers

CSP Builder

Build Content Security Policy headers interactively

Security Headers

Analyze and generate HTTP security header sets

CORS Generator

Generate CORS policy headers for APIs

Hash Identifier

Identify the algorithm behind an unknown hash string

DevOps & Infrastructure

Docker Compose

Generate docker-compose.yml for multi-container apps

Dockerfile

Generate Dockerfiles for common runtimes and languages

Docker Run

Convert docker run commands to Compose format

Nginx Config

Generate Nginx server block configurations

Kubernetes YAML

Generate Kubernetes Deployment and Service manifests

CI/CD Pipeline

Generate GitHub Actions and GitLab CI pipeline configs

curl Builder

Build and decode curl commands with flags and headers

.htaccess

Generate Apache .htaccess redirect and rewrite rules

robots.txt

Build robots.txt for search engine crawler control

Env Manager

Manage, diff, and convert .env file formats

Makefile

Generate Makefiles with common build and run targets

License

Generate open source license files (MIT, Apache, GPL)

Shell Script

Generate shell script boilerplate for common tasks

Pre-commit

Configure pre-commit hooks for Git repositories

Encoding & Tokens

Encode & Decode

Base64, URL, Hex, Binary, Base32 encoding

UUID Generator

Generate UUID v4, v7, and NIL

Text & Strings

Case Converter

Convert between camelCase, snake_case, kebab-case and more

Word Counter

Count characters, words, sentences, and reading time

Lorem Ipsum

Generate placeholder text for layouts and testing

Slug Generator

Create URL-safe slugs from any text

Data Format

YAML ↔ JSON

Convert between YAML and JSON formats

JSON Diff

Compare two JSON payloads and highlight differences

JSON ↔ CSV

Convert between JSON and CSV with RFC 4180 compliance

Code & Formatting

Code Editor

Syntax-highlighted code editor

Formatter

Beautify or minify JSON, XML, YAML, TOML

JSON → TypeScript

Generate TypeScript types from JSON

Regex Tester

Test, explain, and debug regex patterns

Reference

HTTP Status

Searchable reference of HTTP status codes with descriptions

Regex Cheatsheet

Quick reference for regex syntax with examples

MIME Lookup

Look up MIME types by extension or vice versa

Unicode Search

Search Unicode characters and get code points, HTML entities, CSS escapes

CSS Tools

Gradient Generator

Build CSS linear and radial gradients with live preview

Box Shadow Generator

Design CSS box shadows with visual controls

Utilities

Password Generator

Random passwords and passphrases

Timestamp Converter

Convert timestamps across formats and timezones

Color Picker

Color conversion, contrast, and palettes

Base Converter

Convert between binary, octal, decimal, and hexadecimal

Cron Builder

Build and decode cron expressions with next-run preview

CIDR Calculator

IPv4 CIDR network, broadcast, and host range calculator

Image to Base64

Convert images to base64 data URIs

Markdown

Markdown Preview

Live-preview Markdown with syntax highlighting

Markdown → HTML

Convert Markdown to clean HTML output

HTML → Markdown

Convert HTML back to Markdown format

→ Confluence

Convert Markdown to Confluence wiki markup

→ Jira Wiki

Convert Markdown to Jira wiki markup

Table Generator

Build Markdown tables with a visual editor

TOC Generator

Generate a table of contents from Markdown headings

Frontmatter Editor

Edit and validate YAML frontmatter in Markdown files

Markdown Cheatsheet

Quick reference for Markdown syntax and formatting

Database & SQL

SQL Formatter

Format and beautify SQL queries across dialects

JSON → SQL

Generate SQL INSERT statements from JSON data

CSV → SQL

Generate SQL INSERT statements from CSV data

SQL → TypeScript

Generate TypeScript interfaces from SQL DDL

SQL Query Builder

Build SQL SELECT queries with a visual interface

Schema Designer

Design database schemas and generate CREATE TABLE DDL

SQL Reference

Quick reference for SQL syntax, functions, and clauses

Explain Plan

Parse and visualize SQL EXPLAIN output

Diff & Compare

Text Diff

Compare two text blocks and highlight changes line by line

CSV Diff

Compare two CSV files and highlight row differences

XML Diff

Compare two XML documents and highlight structural changes

YAML Diff

Compare two YAML files and highlight key differences