Quoted-Printable Decoder
Encode and decode Quoted-Printable format used in email (MIME) systems. Handles soft line breaks and non-ASCII characters. All processing done in your browser.
Result will appear here...
How to Use Quoted-Printable Decoder
Choose Mode
Select Decode (QP to text) or Encode (text to QP) mode.
Enter Input
Paste Quoted-Printable text or plain text depending on the mode.
Convert & Copy
Click Convert and copy the result to your clipboard.
What is Quoted-Printable?
Quoted-Printable is an encoding method used in MIME (Multipurpose Internet Mail Extensions) to represent non-ASCII characters in email messages. It encodes bytes that are not printable ASCII characters (values outside 33-126, except space) as =XX where XX is the hexadecimal value of the byte.
How It Works
Escape Encoding
Non-ASCII and special chars are encoded as =XX
Soft Line Breaks
Lines are wrapped at 76 chars using = at end of line
Safe Characters
Printable ASCII (33-126) and tabs/spaces pass through unchanged
Frequently Asked Questions
Quoted-Printable is primarily used in email systems (MIME) for encoding message bodies. It is the Content-Transfer-Encoding method for text-based email content that contains non-ASCII characters.
A soft line break is represented by = at the end of a line followed by CRLF. It indicates that the line was wrapped for transmission but should be rejoined when decoded. This ensures lines stay under 76 characters.
Quoted-Printable keeps most ASCII text readable and only encodes non-ASCII or special characters. Base64 encodes everything and produces output about 33% larger. QP is preferred for mostly-ASCII content, while Base64 is better for binary data.