September 1, 2024
URL Encoding and Decoding: A Practical Guide
URLs use percent-encoding to safely transport bytes over ASCII-only channels. Always encode only the parts that need it (e.g., query values) and keep reserved characters where appropriate.
- Use UTF-8 before encoding.
- Encode query values, not the entire URL.
- Decode exactly once to avoid double-decoding bugs.
Try our URL Encoder/Decoder.