Generate ESLint configuration presets for React, Node.js, TypeScript, and Next.js projects with recommended rules. Everything runs locally in your browser — nothing is uploaded.
Generate JSON Server configuration files from endpoint definitions. Set up a fully functional mock API server in seconds.
Generate .gitignore files by selecting languages, frameworks, and tools from a checklist — covers Node, Python, Java, Go, Rust, macOS, Windows, Linux, and popular IDEs. Supports negation patterns and custom rules.
Generate random TCP/UDP port numbers from well-known, registered, or dynamic ranges. Useful for network testing, Docker port mapping, and firewall configuration.
Crawls any website and generates a standards-compliant XML sitemap. Supports JavaScript sites (React, Next.js, Vue), detects broken links, and provides SEO health insights.
Generate type definitions from JSON for TypeScript, Java, C#, Python, Go, Rust, and Kotlin. Everything runs locally in your browser — nothing is uploaded.
ESLint Config Generator lets you generate ESLint configuration presets for React, Node.js, TypeScript, and Next.js projects with recommended rules. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Generate ESLint configuration presets for React, Node.js, TypeScript, and Next.js projects with recommended rules. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Paste or type your content directly into the provided text area.
Yes. After the initial page load, ESLint Config Generator runs entirely on your device with no internet connection needed. All processing is done locally.
Generate ESLint configuration presets for React, Node.js, TypeScript, and Next.js projects with recommended rules. Everything runs locally in your browser — nothing is uploaded. All processing runs locally — no code is sent to any server.
Tools cover JavaScript, CSS, HTML, SQL, Python, JSON, XML, CSV, and more. Check the tool description for specifics.
Yes. Since processing is local, performance depends on your device. Most operations handle large files without issue.
Yes. Formatters use well-known libraries (sql-formatter, Prettier-compatible patterns) and follow widely adopted rules.
JavaScript Formatter
Formats JavaScript code with proper indentation, consistent spacing, and syntax structure — supports modern ES6+ features and async patterns.
.gitignore Generator
Generate .gitignore files by selecting languages, frameworks, and tools from a checklist — covers Node, Python, Java, Go, Rust, macOS, Windows, Linux, and popular IDEs. Supports negation patterns and custom rules.