Free Online URL Encoder/Decoder Tool
PRO MAX — URL Encoder & Decoder (Super App)
Encode, Decode, Auto-detect, History, Developer Mode — advanced features for developers & marketers
Shortcuts
Encode
Decode
Auto-Detect
History
Developer Mode
Live preview updates as you type.
Length: 0
Mode: Encode
Result (live preview)
No result yet — type or press Run.
Bytes: 0 | Encoded-looking: false | Last action: none
History
Saved in browser (localStorage)
What is URL Encoding & Why It Matters
This PRO MAX tool encodes and decodes URL components safely using encodeURIComponent and decodeURIComponent standards, with advanced developer options, history, and accessibility features. Use it for preparing UTM links, API requests, or decoding query strings.
How to use
- Paste text or an encoded string into the input box
- Choose Encode / Decode or Auto-Detect
- Use Developer Mode to toggle '+' handling or preserve slashes
- Copy, Download, or Share the result
Advanced notes (developer)
By default, slashes (/) are encoded in component encoding; enable "preserve slashes" to keep them. Treating '+' as space helps when decoding application/x-www-form-urlencoded payloads.