#177 · Converters & Encoding Text Tool

URL Encoder

URL Encoder converts unsafe characters into percent-encoded sequences so text can be safely used in query strings, API parameters, and links.

Text Input

Converter input

Recent History

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How to use this text tool

  • Paste or upload your text into the input box.
  • Choose the conversion format and any repair or live-preview options.
  • Run the tool, then copy, download, or export the result.

What this tool does

Encoded output = encodeURIComponent for components or encodeURI for full URLs, with optional + space conversion.

Encoded output = encodeURIComponent for components or encodeURI for full URLs, with optional + space conversion.

Use component mode for search terms and API values. Full URL mode preserves URL separators.

Example

Example input: hello world?name=CallText&lang=en. Run the tool to generate the converted result and view integrity metrics.

Use cases

  • Programming and debugging
  • API and web development
  • Encoding lessons and documentation
  • Data cleanup before import or export

Tips for better output

  • Use auto-detect when pasted data has mixed separators or formats.
  • Check the data integrity score before copying output into code.
  • Use JSON or CSV export when documenting conversion results.
  • For non-ASCII text, prefer Unicode or UTF-8 workflows.

Processing details

This tool runs locally in the browser and performs deterministic text conversion without uploading your input. Metrics include size, validity, and character-level analysis where relevant.

Browser text decoding may display binary data as replacement characters. For sensitive secrets, remember that encoding is not encryption.

FAQ

How do I URL encode a query string value?

Paste the value, choose URL Component mode, and run the encoder. Spaces and reserved characters become safe percent sequences.

Should spaces in URLs be encoded as %20 or plus?

Use %20 for general URL components. Use + mainly for form-style query encoding when the receiving system expects it.

What characters must be URL encoded for APIs?

Spaces, &, ?, #, %, =, and many non-ASCII characters should be encoded when they are part of a query value.

How do I encode Korean or emoji in a URL?

Paste the text and use component encoding. The tool converts UTF-8 bytes into percent-encoded sequences.

What is the difference between encodeURI and encodeURIComponent?

encodeURI preserves URL separators. encodeURIComponent encodes values more aggressively and is safer for query parameters.

Conversion modules

ModulePurpose
Conversion EngineApplies the selected encoder or decoder.
ValidationDetects invalid input, malformed sequences, or unsupported characters.
Data Integrity ScoreScores conversion safety from 0 to 100.
Export ToolsCopies or downloads output as TXT, CSV, or JSON.

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