#486 · Developer Tool

Quoted Printable Encoder

Encode UTF-8 email body text as quoted-printable with protected trailing whitespace and RFC-style soft line wrapping. Processing stays in the browser, so the input is not sent to a conversion service.

Developer Input

Email body text
Ad space

How to use this developer tool

  1. Paste email body text or load the sample.
  2. Choose any format-specific option shown above the run button.
  3. Select Encode Quoted-Printable or press Ctrl/Cmd + Enter.
  4. Review the summary and download the result if it matches your target format.

What this developer tool does

Printable ASCII is kept when safe; other UTF-8 bytes become uppercase equals-hex escapes.

Lines are wrapped with a trailing = soft break so each encoded line stays within the selected limit.

CRLF line endings are emitted because quoted-printable is primarily a MIME transfer encoding.

Example

Input

Café menu: crème brûlée
Trailing spaces stay visible. 

Run the included sample to see the exact output and byte statistics produced by the current options.

Use cases

  • Check values copied from email, URLs, tokens, or configuration files.
  • Prepare deterministic test fixtures without a server-side dependency.
  • Inspect byte-level transformations before adding them to application code.

Tips for reliable output

  • Keep the original input beside the result while debugging.
  • Confirm the alphabet or MIME variant expected by the receiving system.
  • Use hexadecimal output when bytes are not valid text.
  • Test Unicode and empty-edge cases in your own integration.
  • Do not treat reversible encoding as a security control.

Processing details

Spaces and tabs at a physical line end are escaped. The equals sign is always encoded.

This encodes a MIME body, not an RFC 2047 email header encoded-word.

Frequently asked questions

What input does the Quoted Printable Encoder accept?

Email body text is accepted as plain text in the input area.

How does the Quoted Printable Encoder handle invalid data?

This encodes a MIME body, not an RFC 2047 email header encoded-word.

Is output from the Quoted Printable Encoder encrypted?

No. The transformation is an encoding or inspection operation, not encryption.

Can I use the Quoted Printable Encoder with Unicode text?

Yes. Text input is converted with UTF-8 where the format requires bytes.

What should I verify before using the result?

CRLF line endings are emitted because quoted-printable is primarily a MIME transfer encoding.

Format notes

PropertyValue
InputEmail body text
RunsLocally in the browser

Encoding and Decoding tools

Browse byte viewers, Unicode inspectors, and text encoding converters in the same category.

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