Quick take
Encode query strings safely or decode messy URLs back into readable text.
- Encode a query value containing spaces, Chinese characters, or punctuation.
- Decode a copied tracking URL for inspection.
URL Encoder and Decoder
live
Output will appear here.
Where it fits
Use URL Encoder and Decoder for preparing query parameters, redirect values, API examples, campaign fields, and copied URL fragments. It works well when you want encoded or decoded URL-safe text and do not need a bigger workflow around it.
- Best fit: preparing query parameters, redirect values, API examples, campaign fields, and copied URL fragments.
- You start with text or URL components that need percent encoding or decoding.
- The useful choices are encode or decode mode and whether the value is a full URL or a single component.
- Check spaces, reserved characters, double encoding, plus signs, and malformed percent sequences.
- You end up with encoded or decoded URL-safe text.
What the output does and does not prove
- Encoding uses browser URL component rules.
- Parse mode extracts the part after ? when you paste a full URL.
- The tool never opens or requests the URL.
A clean way to use URL Encoder and Decoder
- Start with text or URL components that need percent encoding or decoding.
- Choose encode or decode mode and whether the value is a full URL or a single component.
- Run the tool once, then review spaces, reserved characters, double encoding, plus signs, and malformed percent sequences.
- Copy, export, or download encoded or decoded URL-safe text.
- Treat the output as one checkpoint, then verify the next step in the real workflow.
What to watch for
- Encoding a full URL and encoding one query parameter are different operations.
- Decoding untrusted redirect targets can reveal nested URLs that need separate validation.
- Encode parameter values before placing them after question marks or ampersands.
- Do not decode and follow suspicious URLs automatically; inspect them first.
How your data is handled
This tool works in your browser. Toolumina does not upload or keep the content you enter here.
FAQ
Does this visit the URL I paste?
No. It only processes the string locally.
Are duplicate query parameters preserved?
Yes. Parse mode lists every parameter occurrence.
What is the difference between + and %20?
%20 is percent encoding for a space. A plus sign is commonly used for spaces in query form encoding.