URL Encoder / Decoder
Encode or decode URL strings. Free, no signup required.
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How It Works
Choose Encode or Decode mode
Paste your URL or text into the input
Click Run to get the encoded or decoded result instantly
Why Use OneConvertly to URL Encoder / Decoder?
100% Private
Your files never leave your device. Everything is processed in your browser.
No Signup Required
Use this tool instantly — no account, no email, no limits.
Works on Any Device
Runs in Chrome, Firefox, Safari, and Edge on desktop and mobile.
Completely Free
No watermarks, no daily caps, no hidden fees.
Frequently Asked Questions
What characters get encoded?
All characters that are not safe in URLs — spaces, &, =, ?, #, %, and others — are percent-encoded (e.g. space becomes %20).
When should I use URL encoding?
Use it when building query strings, embedding data in URLs, or decoding query parameters you receive from APIs or web forms.
Is it the same as encodeURIComponent?
Yes, it uses the same standard as JavaScript's encodeURIComponent / decodeURIComponent functions.
Is my data sent to a server?
No. All encoding and decoding happens locally in your browser. Your data never leaves your device.
Can I decode a full URL with query parameters?
Yes. Paste the entire URL and all percent-encoded characters (%20, %3D, etc.) will be decoded back to readable text.
Does it work on mobile?
Yes. The tool works in any modern mobile browser. Paste your URL, tap Run, and copy the result.
What is the difference between URL encoding and Base64?
URL encoding escapes only characters that are unsafe in URLs (spaces, &, = etc.). Base64 converts entire data into a different alphabet. Use URL encoding for query strings and Base64 for embedding binary data.