URL Encoder & Decoder OnlineEncode or decode URLs instantly with fast, private in-browser processing.
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Overview
Encode or decode URLs instantly with a free, online URL encoder that runs entirely in your browser. Safely transform query parameters, path segments, and full URLs so requests remain valid and readable.
Developers rely on URL encoding to prevent malformed requests, fix copy-paste issues, and prepare data for API calls. This tool processes everything client-side, so your URLs stay private and you get immediate results without registration. Switch between encoding modes and inspect URL parts to debug faster.
Use this encoder when you are building query strings, sharing links, or troubleshooting redirect flows. Having both encode and decode in one place makes it easy to spot mistakes in parameters before shipping.
- Encode or decode full URLs and individual parameters.
- Inspect protocol, host, path, and query pieces instantly.
- Copy results with one click for rapid testing.
- Runs fully in-browser for speed and privacy.
How to Use
Use URL encoding whenever a parameter contains spaces, punctuation, or non-ASCII characters.
- Select Encode or Decode based on your input.
- Paste a full URL or a single parameter value.
- Click Convert to view the encoded or decoded result.
- Copy the output or inspect the URL breakdown.
Common Use Cases
Encoded URLs reduce errors when parameters are built dynamically in apps or services.
- Encoding query strings for API requests.
- Decoding URLs copied from logs or emails.
- Sanitizing user input for safe redirects.
- Building clean, shareable links with parameters.
FAQ
What is the difference between encodeURI and encodeURIComponent?
encodeURIComponent is for individual parameters, while encodeURI keeps URL structure intact. Use the latter for full URLs.
Is my URL sent to a server?
No. Encoding and decoding happen locally in your browser. Your URLs remain private.
Why does a space become %20?
Special characters are represented by percent-encoded hex values in URLs. This ensures safe transmission over HTTP.