Encode text into URL-safe percent encoding or decode encoded URLs back to readable text. Compare RFC 3986, encodeURI, and encodeURIComponent behavior while inspecting query parameters and malformed percent sequences.
Percent Encoding Converter produces developer-ready output and reports conversion counts, malformed sequences, byte length, and validation quality so the result is safer to reuse.
Validation is client-side and designed for practical text preparation. Always test critical production regex, URLs, or encoded payloads in the target runtime.
Example input: https://example.com/search?q=hello world&name=가. Run the tool to produce a validated conversion result with character-level diagnostics and export options.
Processing runs in the browser. The script tracks input length, output length, converted units, invalid sequences, UTF-8 byte count, and the selected mode.
Different programming languages and regex engines may handle edge cases differently. For strict compliance, verify final output in the exact runtime that will consume it.
Paste the relevant text into Percent Encoding Converter, choose the options that match your goal, and run the tool. Review the output and metrics to encode a url correctly for query parameters before copying or downloading the result.
Percent Encoding Converter reports the tool-specific output and supporting metrics directly in your browser. For “What is the difference between encodeURI and encodeURIComponent?”, use the displayed result, interpretation, and example together rather than relying on one number alone.
Paste the relevant text into Percent Encoding Converter, choose the options that match your goal, and run the tool. Review the output and metrics to decode percent encoded urls before copying or downloading the result.
The result in Percent Encoding Converter depends on the exact input, selected options, encoding, and formatting. For “Why is percent 20 used instead of spaces in URLs?”, compare the original and processed text and review any warnings shown by the tool.
Paste the relevant text into Percent Encoding Converter, choose the options that match your goal, and run the tool. Review the output and metrics to fix invalid percent encoding errors in a url before copying or downloading the result.
| Module | Purpose |
|---|---|
| Main Result | Copy-ready converted output |
| Validation Score | Rates malformed sequences and conversion warnings |
| Character Inspector | Shows Unicode code point and UTF-8 bytes |
| Batch Processing | Handles multiple lines independently when enabled |
| Before / After Compare | Shows the exact change caused by conversion |