Developer tools
URL Decode Online
Decode percent-encoded URL text and URL components locally in your browser.
Privacy note
Your text is processed in your browser. This tool does not store pasted text on a server.
When this tool helps
Use this tool to decode percent-encoded URL text into readable text.
It is useful when checking query strings, copied links, redirect parameters, and encoded API examples.
Common cleanup options
Readable URL values
Decode query values, URL fragments, copied links, and encoded API parameters into readable text.
Query string cleanup
The optional plus-as-space setting helps decode form-style query strings such as name=Alice+Smith.
Malformed input handling
Invalid percent sequences return a clear message instead of interrupting the page.
Browser processing
The current version runs locally and does not upload pasted URL text.
How to use it
- Paste percent-encoded URL text or a copied query parameter.
- Choose component or full URL mode.
- Leave plus-as-space enabled for query strings where + means a space.
- Run the tool and copy the readable result for debugging, documentation, or cleanup.
Privacy, review, and limitations
The current version processes pasted text in your browser for normal use, and the page explains the tool behavior that is visible in the interface. Review the preview before copying output into another workflow, especially when the source text came from PDFs, spreadsheets, exports, or copied tables.
The tool decodes text; it does not verify that decoded links are safe or trustworthy.
Full URL mode preserves URL structure, while component mode is better for query values and individual fields.
If an input contains incomplete percent encoding, fix the malformed sequence and run the tool again.
Frequently asked questions
What does URL decoding do?
It converts percent-encoded sequences such as %20 and %C3%A3 back into readable text.
Should plus signs become spaces?
For query string values, plus signs often represent spaces. Keep the plus-as-space option enabled for copied query parameters, and turn it off when plus signs are literal characters.
What happens if the input is malformed?
The tool returns a readable error instead of crashing, so you can fix incomplete percent-encoded sequences.
Is my URL text uploaded?
No. The current tool decodes pasted input locally in your browser.
Last updated: May 11, 2026
See the tool in action
How this page is maintained
This tool page is maintained for practical accuracy, clear limitations, browser-based processing behavior, and links to related cleanup tasks. It is intended for everyday text cleanup, not for legal, medical, financial, security, or other high-stakes decisions.
Browser-local processing
The current tool runs in the browser and does not require an account, upload, or server-side text processing for normal use.
Reviewed behavior
Examples, options, and limitations are checked against the actual tool behavior before public pages are added to the site.
Human review still matters
Text cleanup can miss source-specific issues such as broken words, malformed data, or copied table artifacts, so review important output before reuse.
Safe use checklist
- Use sample or non-sensitive text when testing a workflow.
- Check the output preview before copying it into another system.
- Keep confidential, regulated, or customer data inside approved tools.
- Use related tools only when they match the same cleanup task, not to force unrelated edits.