Encoding Options
Common Options
0
Input Length
0
Output Length
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Encoded Characters
Invalid
URL Status
URL Encoder/Decoder
URL encoding and decoding tool with various encoding types and configuration options.
URL Encoder/Decoder - Conversion Direction
URL Encoder/Decoder Tool Guide
URL Encoder/Decoder is a free online tool that can quickly perform URL encoding and decoding operations. Supports bidirectional conversion (encoding and decoding), multiple encoding types (percent encoding, component encoding, form encoding), various configuration options (encode all characters, preserve spaces, encode plus signs, strict mode, auto-detection, etc.). Real-time conversion with instant results. Supports multiple character sets (UTF-8, ASCII, Latin-1) to flexibly handle various URL encoding needs. All processing is done locally in your browser, data is never uploaded to the server, completely protecting your privacy and data security.
Multiple encoding types for flexible scenarios
100% local processing, privacy secure
Rich configuration options for various needs
Tool Features
Multiple Encoding Types and Bidirectional Conversion
Supports both URL encoding and decoding operations, allowing quick conversion between text and URL encoded strings. Encoding mode: Convert plain text to URL encoded strings, supports multiple encoding types (percent encoding, component encoding, form encoding). Decoding mode: Convert URL encoded strings back to original text, supports automatic detection of encoding types, supports strict mode validation. Automatically converts after switching modes, no manual operation required.
Rich Encoding Options and Auto-Detection
Provides multiple encoding options to flexibly handle various use cases. Encoding options: encode all characters (encode all characters), preserve spaces (encode spaces as + or %20), encode plus signs (encode + as %2B). Decoding options: strict mode (strictly validate URL encoding format), decode plus signs (decode + as spaces), auto-detect (automatically identify form encoding format). Encoding type selection: percent encoding (standard URL encoding), component encoding (stricter encoding), form encoding (use + instead of spaces).
Detailed Statistics and Convenient Operations
Provides detailed statistics including input length, output length, encoded character count, URL validity, etc. Statistics are displayed in colorful cards, clear and intuitive. Supports one-click copy of output results, convenient for using results elsewhere. Supports swapping input and output data to quickly switch encoding/decoding direction. Supports clear function to quickly reset all content. All operations take effect in real-time, results update immediately after modifying input.
How to Use
- 1
Select Conversion Direction and Enter Data
First select the conversion direction: Encode (convert text to URL encoding) or Decode (convert URL encoding to text). Then enter or paste the data you want to convert in the input area. If in encoding mode, enter plain text; if in decoding mode, enter URL encoded string. Conversion will be triggered automatically after input, no need to click any button.
- 2
Configure Encoding Options
Select the options you need in the encoding options area. Encoding mode options: encode all characters (encode all characters), preserve spaces (encode spaces as + or %20), encode plus signs (encode + as %2B). Decoding mode options: strict mode (strictly validate URL encoding format), decode plus signs (decode + as spaces), auto-detect (automatically identify form encoding format). Common options: character set selection (UTF-8, ASCII, Latin-1), encoding type selection (percent encoding, component encoding, form encoding). Conversion results update immediately after selecting options.
- 3
View Statistics and Copy Results
After conversion is complete, you can view the statistics cards to see input length, output length, encoded character count, URL validity, etc. You can click the "Copy" button to copy the conversion result, or click the "Swap" button to quickly switch encoding/decoding direction, or click the "Clear" button to clear all content. The converted result will be displayed in the output area and can be used directly or copied elsewhere.
Frequently Asked Questions
What's the difference between percent encoding, component encoding, and form encoding?
Percent Encoding: Standard URL encoding that encodes special characters as %XX format, spaces can be encoded as %20 or preserved as spaces. Component Encoding: Stricter encoding method that uses encodeURIComponent to encode all special characters, suitable for URL component parts (such as query parameters). Form Encoding: Uses + instead of %20 to represent spaces, suitable for form submissions. The tool supports automatic detection and conversion of these encoding types.
Will my data be uploaded to the server?
No, all processing is done in your browser. Your data never leaves your device, completely protecting your privacy.
What should I do if an error occurs during decoding?
If an error occurs during decoding, first check if the URL encoded string is complete and correct. Common causes include: string is truncated, contains illegal characters, or encoding format is incorrect. You can try enabling the "Auto-detect" option, the tool will automatically identify form encoding format (using + instead of spaces). If it still fails, check if the original data is correct, or try enabling "Strict mode" to get more detailed error information.
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