URL Encoder: what this tool is for
Uniform Resource Identifiers (URIs) and web URLs can only contain a restricted set of ASCII characters defined by RFC 3986. Special characters like spaces, ampersands (`&`), question marks (`?`), slashes (`/`), equals signs (`=`), and non-Latin characters must be converted into percent-encoded format (e.g., `%20`, `%26`) to prevent breaking query strings or causing server routing errors.
Xorvian's URL Encoder provides instant, standards-compliant percent-encoding for URLs and query parameters. Switch between 'Encode Component' (strict `encodeURIComponent` for query parameters, encoding delimiters like `&` and `=`) and 'Encode Full URL' (`encodeURI` for full web addresses, preserving protocol and path slashes).
Full Unicode compliance ensures that accented international characters, non-Latin scripts, and emojis encode cleanly without string corruption.
100% private, client-side, and free: encoding takes place locally inside your browser without logging inputs or transmitting data across the internet.
No file stored
Nothing is saved on our servers, during or after processing.
Local processing
The computation runs in your browser whenever the technology allows it.
Instant result
No waiting and no export queue: the result appears live.
Free, no account
No sign-up, no daily limit and no intrusive ads.
What this tool gives you
Dual Component & Full URL Modes
Choose 'Component' mode to strictly encode query values, or 'Full URL' mode to encode full web addresses while preserving protocol (`https://`) and path slashes.
RFC 3986 Standards Compliant
Guarantees accurate percent-encoding of reserved characters (`&`, `?`, `=`, `#`, `/`, `@`, spaces, etc.) for reliable API integrations.
Full Unicode & International Support
Accurately percent-encodes international alphabets, accented characters (é, à, ñ), Cyrillic, Asian characters, and emojis.
Escapes Spaces & Reserved HTTP Delimiters Safely
Encoded output generates dynamically as you type or paste text, with zero lag or page refreshes.
Standard RFC 3986 Query Parameter Percent-Encoding
All encoding runs in local browser memory. Sensitive tracking IDs, tokens, and query strings are never sent to external servers.
One-Click Copy & Clean Interface
Copy your encoded URL directly to your clipboard for instant pasting into code, tracking links, or API clients.
Real-world examples
Overview of reserved URL characters and their corresponding percent-encoded representations:
How to use URL Encoder
Paste or Type Your Text
Enter your raw query parameter string or full web address into the input box.
Select Encoding Mode
Choose 'Encode Component' (for query parameter values) or 'Encode Full URL' (for complete web links).
Review Instant Encoded Output
The percent-encoded URL string appears immediately in the output area.
Copy Encoded String
Click 'Copy to Clipboard' to transfer the safe, encoded URL into your application or code.
Tips and mistakes to avoid
Use Component Mode for Query Values
When passing dynamic user input into query strings (e.g., `?search=term&user=John Doe`), use Component mode so characters like `&` and `=` don't break parameter parsing.
Spaces as %20 vs. +
`%20` is the standard percent-encoding in RFC 3986. The `+` symbol is historically used in `application/x-www-form-urlencoded` form submissions.
Encoding UTM Campaign Links
Ensure UTM campaign parameters with spaces (e.g., `utm_campaign=summer promo`) are percent-encoded (`summer%20promo`) to avoid broken analytics links.
Avoid : Double-Encoding Existing Percent-Encoded Strings
Encoding an already-encoded string (e.g., `%20` becoming `%2520`) will corrupt URL parameters on receiving servers.
Avoid : Using Full URL Mode on Raw Parameter Values
Using `encodeURI` instead of `encodeURIComponent` leaves `&` and `=` unencoded, which corrupts query string key-value boundaries.
Avoid : Manually Replacing Spaces with Underscores
Use standard percent-encoding `%20` to preserve the original space character in search queries and API payloads.
Frequently asked questions
Answers to the questions people ask about URL Encoder.
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Updated on August 2026. See all tools