URL Encoder/Decoder (Free, Instant)
Encode or decode URLs in one tool.
0 / 2,000 characters
Free tier: 2,000 characters.
💡 When to use:
- Encode: Before adding text to URL parameters
- Decode: To read URL-encoded data from addresses
Example: "Hello World!" → "Hello%20World%21"
Why Use URL Encoding/Decoding?
URLs can only contain ASCII characters (A-Z, 0-9, -, _, ., ~). Special characters (spaces, @, #, %) and non-ASCII (ñ, ä½ å¥½) must be percent-encoded (%20, %40) for safe transmission. A combined encoder/decoder lets you encode query params for APIs, then decode tracking URLs—all in one tool.
Common Use Cases
- API development: Encode query parameters with spaces or special characters for GET requests
- Analytics: Decode tracking URLs (UTM parameters, GA links) to understand campaigns
- OAuth flows: Encode callback URLs with nested parameters for authentication
- Debugging: Decode server logs with percent-encoded URLs to identify requests
- Social sharing: Encode share URLs for Twitter, Facebook, LinkedIn with query params
- Form submissions: Encode user input before appending to GET request URLs
Why This Tool?
- Bidirectional: Encode and decode in one tool—no page switching
- RFC 3986 compliant: Encodes all special characters according to URL standard
- Instant conversion: Real-time encoding/decoding as you type
- 100% client-side: Your URLs never touch our servers
- Free forever: Unlimited encoding/decoding with no rate limits
Pro tip: For checking encoded URL length, use URL Length Checker. For creating SEO-friendly slugs, try Slug Generator.