Best for query parameters
Best URL Encoder for Query Parameters (2026)
Building URLs with user input, API parameters, or redirect URIs? Special characters like &, =, and spaces break URLs. The right encoder ensures every parameter is properly percent-encoded for safe transmission.
Tool Comparison
URL Encode/Decode
RecommendedFull percent-encoding with Unicode support, handles both encoding and decoding in one tool.
Best for: Encoding individual query parameter values and decoding complex URLs
Pros
- Encodes all special characters including Unicode
- Decode mode for inspecting encoded URLs
- Handles both component and full URL encoding
Cons
- Manual input — no bulk URL processing
Recommended Workflow
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1
Enter the raw value you want to use as a query parameter
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2
The encoder converts special characters to percent-encoded format
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3
Copy the encoded string and insert it into your URL
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4
Use Decode mode to verify URLs received from external systems
Frequently Asked Questions
What's the difference between encodeURI and encodeURIComponent?
encodeURI encodes a full URL but preserves characters like :, /, ?, and #. encodeURIComponent encodes everything — use it for individual query parameter values to prevent them from being interpreted as URL structure.
Why do spaces become %20 or + in URLs?
In URL paths, spaces must be encoded as %20. In query strings (application/x-www-form-urlencoded), spaces can also be encoded as +. Our encoder uses %20 for universal compatibility.
Do I need to URL-encode emoji in URLs?
Yes. Emoji and other Unicode characters must be percent-encoded in URLs. Our encoder handles this automatically, converting each character to its UTF-8 byte sequence.
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