URL Decoder
Decode percent-encoded URL strings and query values (%20, %2F, UTF-8 sequences) back into readable text in your browser.
Processing: in your browser (nothing uploaded)
About URL Decoder
URL Decoder on FileToolsHub turns percent-encoded strings into readable text without uploading anything.
Paste a query value, redirect URI fragment, or log line packed with %20 and UTF-8 sequences, then copy the decoded result for debugging OAuth callbacks, webhooks, and analytics URLs.
Decoding uses the browser’s decodeURIComponent path, so secrets in the string never leave your device.
If the value was double-encoded, run the tool a second time.
How to use URL Decoder
- 1
Paste a percent-encoded string, full URL, or query fragment into the input.
- 2
Click decode — FileToolsHub runs decodeURIComponent locally in your browser.
- 3
Copy the readable result; re-run if the value was double-encoded.
Why use URL Decoder
- No upload — decoding stays on your device
- Useful for OAuth redirects and webhook payloads
- Pairs with URL Encoder for round-trip checks
- Handles common UTF-8 percent sequences
Use cases
- Decode percent-encoded query values from logs
- Read messy redirect URIs during OAuth debugging
- Turn %20 / UTF-8 sequences back into readable text
Privacy
URL Decoder runs entirely in your browser on FileToolsHub. Your text input is processed in this tab and is never uploaded to our servers.
That means passwords, tokens, personal notes, and documents you paste or load stay on your device. Clear the page or close the tab when you are finished on a shared computer.
You still need a network connection to load the page the first time. After that, the core processing for URL Decoder does not require sending your content to FileToolsHub.
Limitations
- URL Decoder depends on your browser. Very large inputs may slow or freeze older devices; try a smaller sample if the tab becomes unresponsive.
- URL Decoder does one focused job. For multi-step workflows, use the related tools below or the Text Tools hub.
URL Decoder FAQ
When do I need a URL decoder?
Whenever you receive a callback, log line, or spreadsheet cell full of %20 / %2F / %3A sequences and need the human-readable path or query value.
How are spaces and plus signs handled?
Percent-encoded spaces (%20) decode to spaces. Some form encodings use + for spaces — if a plus remains literal, replace + with %20 and decode again, or decode the query with application/x-www-form-urlencoded rules in your app.
What about double encoding?
If you still see %25 sequences after one pass, the value was encoded twice. Run URL Decoder again until the text stabilizes.
Is my string uploaded?
No. URL Decoder is a browser-side text tool on FileToolsHub — nothing is sent to the server.
Is URL Decoder free?
Yes. URL Decoder on FileToolsHub is free for everyday use with no account required for standard jobs.
How do I use URL Decoder?
Paste a percent-encoded string, full URL, or query fragment into the input. Click decode — FileToolsHub runs decodeURIComponent locally in your browser. Copy the readable result; re-run if the value was double-encoded.
Does URL Decoder work on mobile?
Yes. URL Decoder works in modern mobile and desktop browsers. Large files may be slower on limited connections.
Can I use URL Decoder offline?
Once the page is loaded, most of URL Decoder runs locally. You need network access to open FileToolsHub the first time.
Related tools
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