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Secure URL Encoder & Decoder
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URL Encoder / Decoder

Encode and decode URL components and query strings safely in your browser.
Last updated: July 7, 2026100% Client-Side & Private
INPUTENCODE

URL to Encode

Paste a URL or string to encode it for safe transmission.

orOpen Fileor Drag & Drop
OUTPUTENCODED

Ready to encode

Your encoded URL will appear here.

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About this Tool

Securely completely encode and decode URL string parameters.

1What is URL Encoding and Decoding?

URL Encoding is a formatting utility that translates special characters inside web links and query parameters into percent-encoded formats. This ensures that browsers and servers parse links correctly without breaking on characters like spaces or symbols. Our tool runs locally in your browser memory to encode full URLs or specific query segments, keeping your session identifiers and tokens safe from exposure. It is a critical helper for testing API links. Additionally, the utility generates clean, standardized code syntax that complies with modern web validation standards and SEO guidelines. The responsive layout makes it easy to format, edit, and copy outputs on both mobile viewports and desktop workstations. This local execution model bypasses browser network dependencies, offering a snappy user experience for editing frontend stylesheets, vector assets, and HTML layouts. For more details, explore our blog articles: Why Offline-First Developer Tools Matter and The Hidden Risks of Online Developer Tools.

2Example: Percent Encoding

Input URL: https://example.com/search?q=hello world Encoded URL: https://example.com/search?q=hello%20world

3Safe Character Handling

Our tool distinguishes between the full URI and URI components, correctly preserving structural characters like :// when necessary, or encoding everything for safe use as a query parameter value.

4Privacy: Local URL Parsing

URL parameters often contain session IDs, user emails, or tracking tokens. By performing all encoding and decoding directly in your browser, we ensure that your sensitive navigation history and query data are never exposed to any third-party analytics or logging servers.

Privacy Guarantee

The Secure URL Encoder & Decoder operates 100% locally in your web browser. Your Base64 strings, URL parameters, or HTML entities are encoded, decoded, and parsed in-memory. Your query strings and secrets are safe from external telemetry.