Online code formatter powered by Prettier. Supports JavaScript, HTML, CSS, SQL formatting and safe minification. Protects string literals from being broken.

Online SQL formatting tool: supports MySQL, PostgreSQL, SQLite, BigQuery dialects. Uppercase/lowercase keywords, configurable indentation. Format or minify SQL statements instantly.

Free online HTML formatter supporting beautify and minify, with adjustable indent size and options to keep comments and blank lines.

Online HTML minification and formatting tool: compress by removing comments and whitespace, or format with proper indentation. Preserves script/style tag contents.

Online CSS minification and formatting tool: compress by removing comments and whitespace, or format with proper layout. Protects string literals.

Online JavaScript minification and formatting tool: compress by removing comments and whitespace, or format with Prettier. Protects string literals.

Free online JSON to TypeScript interface tool, auto-generate interface and type, supports nested objects and arrays

Free online JSON to Go Struct tool. Auto-generate struct definitions with json tag and omitempty support.

Free online JSON to Java Class tool. Auto-generate POJO classes with getter/setter/Lombok/Jackson annotation support.

Free online tool to convert Java object toString() output to standard JSON format. Supports Map style, JavaBean style, arrays, and more. One-click conversion with formatting and minification.

Free online mock data generator with 28 data types, JSON/CSV/TSV/YAML formats, batch generate test data

Free online SQL CREATE TABLE statement generator with visual table structure design, supporting MySQL, PostgreSQL, and SQLite.

Free online tool to convert cURL commands to HTTP request code in JavaScript (Fetch/Axios), Python (requests), Java, Go, and more. One-click conversion for quick integration.

Convert HTML to React JSX online. Automatically handles className, htmlFor, camelCase attributes, style objects, and self-closing tags. Free, no login, local processing.

Free online Dockerfile generator. Multi-language base images, multi-stage builds, health checks, and COPY instructions. Generate production-ready Dockerfiles instantly.

Free online .gitignore generator supporting 20+ languages/frameworks/IDEs. Generate ignore file configurations in one click.

Free online CSS Flexbox generator with visual flex layout property adjustment, real-time preview, and one-click CSS code copying

Free online CSS Grid generator with visual grid layout adjustment, custom row/column gaps, real-time preview, and one-click code copying

Free online CSS gradient generator. Supports linear, radial, and conic gradients with visual color stops, angle control, and live preview. Copy CSS instantly.

Handy Git Cheatsheet for developers: covers basic operations, branch management, remote collaboration, and undo/revert scenarios. Searchable and categorized for quick reference. All local processing.

Handy Docker Cheatsheet for developers: covers image management, container operations, networks and volumes, and Compose. Searchable and categorized for quick reference. All local processing.

Handy Linux Commands Cheatsheet for developers: covers file operations, text processing, process management, and network troubleshooting. Searchable and categorized for quick reference. All local processing.

Handy SQL Cheatsheet for developers: covers queries, aggregations, joins, subqueries, and window functions. Searchable and categorized for quick reference. All local processing.

Handy Regex Cheatsheet for developers: covers metacharacters, quantifiers, groups, lookarounds, and common patterns. Searchable and categorized for quick reference. All local processing.