URL Decode Online – Privacy-first URL decoder and encoder for developers

Summary: URL Decode Online is a client-side tool that decodes and encodes percent-encoded URLs instantly in the browser without data leaving the device. It supports 12 languages, offers multi-layer auto-detection, works offline after loading, and features a clean, ad-free interface built with Next.js 16.

What it does

It processes URL encoding and decoding entirely on the client side, automatically detecting encoding layers and supporting multiple languages. The tool runs offline once loaded and is optimized for mobile use.

Who it's for

Developers debugging APIs, marketers analyzing URLs, and anyone handling encoded text benefit from this tool.

Why it matters

It eliminates privacy concerns by processing data locally and provides a clutter-free alternative to ad-filled URL decoding tools.