URL Generator

This tool creates a final, parameterized URL by attaching query parameters to a chosen base URL. It accepts a base URL and a map of key-value pairs, supports multi-valued keys, and ensures proper encoding for safe transmission. Conceptually, inputs are sanitized, keys and values are percent-encoded, and parameters are concatenated in a deterministic order to produce the final URL. It benefits marketers who generate campaign links, developers validating link formats, and SEO teams needing consistent UTM or tracking parameters. Core features include base URL validation, encoding per RFC 3986, optional custom ordering, multi-value support, and export options. Use cases include assembling Google Analytics or UTM-bearing links, constructing test URLs for QA, and producing shareable links for content blocks. The tool differentiates itself through deterministic encoding and ordering, immediate validation feedback, and multi-format exports to simplify downstream workflows. Examples: base_url https://example.com/search with q=books, utm_source=newsletter; output https://example.com/search?q=books&utm_source=newsletter. It also supports array-based parameters for multi-value keys and handles existing query strings via user-defined merging rules. The result is a clean, repeatable URL suitable for manual sharing or automation.