URL Decoder
Decode a percent-encoded URL string back into readable plain text.
Decoded output
Your result will appear here.
What is URL Decoder?
URL Decoder translates RFC 3986 percent-encoded hexadecimal sequences (%XX) back into human-readable text and URLs. Using decodeURIComponent, it reassembles single-byte and multi-byte UTF-8 octets into international characters, spaces, and punctuation symbols. Useful for inspecting encoded tracking URLs, redirect links, and API payloads.
How to use URL Decoder
- 1Paste a percent-encoded URL or query string parameter into the input area.
- 2The tool automatically translates all percent escapes back into readable text.
- 3Click Copy to copy the decoded URL string.
Key features
Full Percent-Decoding
Restores %XX hexadecimal octets back to their original ASCII and UTF-8 characters.
Multi-Byte UTF-8 Decoding
Accurately reassembles multi-byte sequences into non-Latin characters and symbols.
Malformed Sequence Protection
Detects invalid percent escapes and alerts you immediately with clear error indicators.
Private In-Browser Execution
URLs containing internal paths, tokens, and query parameters are decoded locally without server logging.
Examples & use cases
Decoded Query String
Restoring spaces and ampersands from percent-encoded text
hello%20world%20%26%20goodbye
hello world & goodbye
Accented Multilingual String
Decoding multi-byte UTF-8 percent octets into accented characters
caf%C3%A9%20latte
café latte
Frequently asked questions
Related tools
Percent-encode text and parameters for safe use in URLs and APIs.
Normalize a URL and strip tracking parameters (utm_*, fbclid, etc.).
Build a campaign tracking URL with UTM parameters for analytics.
Encode special characters to HTML entities or decode entities to text.
Encode text into Base64.