URL encoding converts special characters — spaces, slashes, ampersands, plus signs, question marks, and more — into percent-encoded sequences that browsers and servers accept safely. A single misplaced space or ampersand in a query string can break a link, fail an API request, or corrupt a form submission, which is why encoding exists. Whenever you build links, form actions, redirect URLs, or API calls, you need your values converted correctly so the server receives exactly what you intended. This free online URL encoder/decoder makes any text URL-safe in one click, or does the reverse and decodes an encoded URL back into plain, readable characters so you can inspect what a complex link really means. It handles spaces, symbols, emoji, and non-English text correctly, and the result appears instantly with a copy button ready to use. Whether you are fixing a broken form, building a tracking link, or verifying an affiliate destination, the right conversion is always one click away. Both directions run entirely in your browser, keeping your links and data private. No signup required. Try it now for instant results.
✨ Try the Free Online URL Encoder/Decoder
How It Works
Step 1: Enter your text or URL
Type plain text containing spaces or special characters if you want to encode it, or paste an already-encoded query string if you want to decode it. The same box handles both.
Step 2: Pick encode or decode
Click 'Encode for URL' to make your text URL-safe, or 'Decode from URL' to turn sequences like %20 and %26 back into readable spaces and ampersands.
Step 3: Review the output
The result appears instantly so you can check that spaces, slashes, and symbols were converted exactly as you expect before you use it anywhere.
Step 4: Use the result
Copy the encoded string into your link, form action, or API call, or read the decoded value to understand what a complex URL really means and verify it is safe.
Real-World Examples
Query Parameter (Developer): You need to pass a search term containing spaces into a query string. You encode 'hello world' into 'hello%20world' so the server receives the exact value without breaking the URL structure.
Decoding a Share Link (Support): A customer sends a long, encoded affiliate link full of %-sequences. You decode it to reveal the real destination and confirm it is legitimate before sharing it on.
Form Handling (Webmaster): Your site's search form breaks whenever a user types an ampersand or a plus sign. You encode the input so & becomes %26 and the request succeeds every time.
Analytics URL (Marketer): A campaign URL contains spaces and special characters that your analytics tool misreads. You encode the whole destination so every click is recorded accurately in your reports.
Features
- Encode and decode in a single tool with no extra setup
- Handles spaces, symbols, slashes, plus signs, and Unicode correctly
- Encodes emoji and non-English characters using proper UTF-8 sequences
- Instant one-click results with no waiting
- Clear error handling if you paste invalid encoded input
- Copy output to your clipboard with a single tap
- 100% private and processed entirely in your browser
- Free forever, no signup, works on any device
Use Cases
Web Developers
Build safe query strings, links, form actions, and redirect URLs that never break on special characters. Encode user input before inserting it into any URL.
SEO Specialists
Inspect and clean URLs that contain long encoded tracking parameters to understand and improve them. Decode a link to see the real structure.
Marketers
Decode affiliate and campaign links to verify destinations before sharing them with an audience, ensuring you send people to the right place.
Frequently Asked Questions
Q: What is URL encoding?
A: URL encoding converts special characters into percent-encoded sequences — %20 for a space, %26 for an ampersand — so URLs remain valid and parse correctly.
Q: When do I need to encode a URL?
A: Whenever a value contains spaces, slashes, ampersands, plus signs, or non-ASCII characters and is placed in a query string or URL path, to prevent broken links.
Q: Is encoding the same as encryption?
A: No. URL encoding is a formatting convention, not security. It is fully reversible and meant for safe transmission, not secrecy.
Q: Does it handle emoji and non-English text?
A: Yes, it correctly encodes Unicode characters using percent-encoded UTF-8 sequences, so international text and emoji work fine.
Q: Is my data secure?
A: Yes. Everything runs locally in your browser and nothing is sent to any server, so your input stays private.