Free browser tool
URL Encoder & Decoder — Free Online Tool
Encode a query value or full URL, decode percent-encoded text, and understand form-style + signs without breaking your link.
URL components · Full links · Query strings · UTF-8 text
Encode one query parameter value, search term or path segment. Reserved characters such as &, = and / are encoded.
Choose a mode, enter text and select Encode or Decode.
Query parameter inspector
How to use the URL encoder and decoder
- Choose a mode: Select a single URL component for an individual value, Complete URL for an existing link, or Form value for plus-sign space handling.
- Enter your text: Paste a search term, URL, query value or percent-encoded string into the input field.
- Encode or decode: Choose an action and click the conversion button. Malformed percent-encoding displays an error without changing your input.
- Use the result: Copy it, or send the result back to the input to perform the reverse action. For a complete URL, Inspect query reveals decoded parameter names and values without opening the link.
Which URL encoding mode should I choose?
Query value / component
Use for one search term, query parameter value or individual path segment. Encoding tea & coffee keeps its ampersand from becoming a new query parameter.
Complete URL
Use when a full link already contains https://, ? and &. This mode preserves URL structure, so it is not a substitute for encoding each parameter value correctly.
Form value
Use for form-style query values where spaces are represented by +. In this mode, an actual plus sign becomes %2B, keeping it distinct from a space.
& separators. Encoding a broken full URL cannot reliably tell which ampersands belong to values and which separate parameters.URL encoding examples: %20, + and %26
hello world & tools
hello%20world%20%26%20tools
coffee + tea
coffee+%2B+tea
A space is %20 in component encoding and + in form encoding. The sequence %26 stands for a literal ampersand within a value, whereas an unencoded & separates parameters in a typical query string.
Fix common URL encoding problems
My full link became %3A%2F%2F
You encoded the entire URL as one component. Use Complete URL mode for an existing link; encode its individual parameter values separately when constructing it.
Spaces show as plus signs
Form-style encoding uses + for a space. Choose Form value to decode it as a space. Other decoding modes leave literal plus signs unchanged.
Decoding says invalid input
A stray %, incomplete escape or invalid UTF-8 byte sequence cannot be decoded correctly. Check the source text rather than removing characters at random.
Frequently asked questions
Should I encode a complete URL or just its query value?
Encode an individual query value when constructing a link. Complete URL mode is for an existing URL whose delimiters need to remain recognizable. Neither mode repairs ambiguous or incorrectly assembled parameters automatically.
Why does decoding %2520 produce %20 instead of a space?
The percent sign itself was encoded as %25. Decode the result a second time only if you know the original value was intentionally double-encoded; repeated decoding can change a value's meaning.
Does the tool support emojis and non-English text?
Yes. The browser's built-in encoding functions use UTF-8 percent-encoding. Invalid UTF-8 sequences and malformed Unicode input produce a clear error.
Does URL encoding make data private?
No. Percent-encoding is reversible text representation, not encryption. Avoid putting secrets or sensitive data in links, including query parameters.
Can I inspect a link's tracking parameters?
Yes. Paste a complete HTTP or HTTPS URL, then click Inspect query to view its decoded parameter names and values, including repeated parameters. This action does not open the link.
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