'/%3e%3cpath%20d='m27%2024%205-5a9.2%209.2%200%200%201%2013%2013l-5%205M37%2040l-5%205a9.2%209.2%200%200%201-13-13l5-5M26%2038l12-12'%20stroke='%23fff'%20stroke-width='5.4'%20stroke-linecap='round'%20stroke-linejoin='round'/%3e%3c/svg%3e){kind=small}
Processing mode
Three modes keep parameter, URI and form rules distinct.
URL encoder / decoder
Encode and decode URLs and parameters.
Using this tool
Enter the text, link or values to process, choose the available options, and check the result before copying or downloading it.
Your tool inputs and processing results are not published as part of this page. Review the tool instructions before entering sensitive information.
Understand encoding without losing parameter meaning
String conversion and query editing are separate. Inspect Chinese, spaces, plus signs and nested links while retaining the source. Encoding is not encryption; decoding does not visit or validate links.
Features
Batch input
Batch processing reports original line numbers and errors; successful rows can be copied or exported together.
Parameter editor
Edit query rows while retaining duplicates, order, empty values, untouched encodings and the hash.
How to use
Choose conversion or query editing. Use the default parameter mode for one value.
Enter source and run the operation. In batch mode use one item per line and correct errors individually.
Edit plain values, check plus and space rules and keep required duplicate parameters.
Compare with the source, then copy or export. Move results to input explicitly for another layer.
Rules and data handling
- Encode / decode
- One layer only, without recursive decoding. Existing % becomes %25 when encoded again.
- Processed in your browser
- All processing is local, with no automatic saving, link visits or short-link resolution. Leaving clears the workspace.
- Query editor
- Only the main query is parsed; hash is retained. Editing signed links can invalidate signatures; check the source system’s rules.
Use cases
Campaign checks: inspect UTM, channel and redirect values and edit what needs changing.
Nested-link debugging: decode one layer to identify which URL owns &, ? and =.
Forms and APIs: distinguish %20, + and %2B and prepare values for the destination contract.
FAQ
Is encoding encryption?
URL encoding changes representation and is reversible, offering no secrecy. Percent signs do not protect sensitive values.
Why does + sometimes become a space?
Form mode and parsing with the plus option treat + as a space. Parameter mode keeps a literal plus; encode it as %2B when needed.
Why does decoding fail instead of showing partial text?
Broken escapes or UTF-8 cannot be decoded reliably. Errors avoid silent replacements; other valid batch rows still succeed.
Does the tool deduplicate, sort or repeatedly decode?
No. Duplicates, order and encoding layers can matter. Edit or process another layer explicitly; untouched rows remain unchanged.
Using this tool
Enter the text, link or values to process, choose the available options, and check the result before copying or downloading it.
Your tool inputs and processing results are not published as part of this page. Review the tool instructions before entering sensitive information.
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