Quoted-Printable Encoder / Decoder
Encode or decode Quoted-Printable text (RFC 2045) used in email and MIME. 100% client-side.
ℹ️ About Quoted-Printable: A MIME encoding that keeps most ASCII text readable but encodes special/non-ASCII characters as
=XX (hex). Used in email.193 chars
440 chars
247
Input bytes
440
Output bytes
90
QP escapes
178%
Size ratio
📖 Common Quoted-Printable escapes
é→=C3=A9
ü→=C3=BC
ñ→=C3=B1
₹→=E2=82=B9
😀→=F0=9F=98=80
Tab→=09
Space (trailing)→=20
=→=3D
न→=E0=A4=A8
🔒 100% private: All encoding/decoding happens in your browser. Follows RFC 2045 (MIME). UTF-8 input supported.
About Quoted-Printable Encoder / Decoder
Quoted-Printable (QP) is a MIME encoding defined in RFC 2045. It is used primarily in email to safely transmit text that contains non-ASCII characters (accented letters, non-Latin scripts) or problematic ASCII characters (=, tabs, trailing spaces) while keeping the text mostly readable. QP represents each problematic byte as "=XX" where XX is the hexadecimal value. Printable ASCII characters (a–z, 0–9, common punctuation) are kept as-is. For non-ASCII text (like Hindi, German umlauts, emoji), the UTF-8 bytes are encoded. Lines are limited to 76 characters, with a soft line break represented as "=" at the end of the line. This tool encodes and decodes QP text entirely in your browser.
How It Works
- Choose Encode or Decode mode.
- Paste your text.
- See the converted output instantly.
- Copy the result with one click.
✨ Key Features
- ✓Quoted-Printable encoding (=XX format)
- ✓Quoted-Printable decoding
- ✓Full UTF-8 support (non-Latin scripts work)
- ✓Soft line breaks (= at end of line)
- ✓76-character line limit (RFC 2045)
- ✓Preserves trailing whitespace correctly
- ✓Handles tabs and special ASCII characters
- ✓Live conversion as you type
- ✓Copy to clipboard
- ✓100% client-side — no data sent to any server
🎯 Common Use Cases
- →Decoding Quoted-Printable email bodies
- →Understanding raw email source
- →Encoding text for email tests
- →Debugging email encoding issues
- →Learning MIME encoding schemes
- →Converting QP to readable text
- →Preparing QP test data
- →Working with RFC 2045 in development
💡 Advanced Tips & Pro Insights
- ▸QP is used mainly in email (alongside Base64 and 7bit/8bit/binary). It is not the same as URL encoding (%XX) — QP uses =XX.
- ▸Printable ASCII (33–126, except =) is kept as-is. Bytes outside this range (spaces, tabs, non-ASCII, = itself) are encoded as =XX.
- ▸Lines must not exceed 76 characters. If a line is longer, a soft line break is added as "=" at the end of the line (the encoded data continues on the next line without a newline character).
- ▸Trailing whitespace on a line is significant in QP — it is encoded as =20 or =09 to prevent mail servers from stripping it.
- ▸UTF-8 characters are first encoded to UTF-8 bytes, then each byte is QP-encoded. For example, "é" (U+00E9) = UTF-8 bytes C3 A9 = "=C3=A9".
Frequently Asked Questions
Is this Quoted-Printable tool free?▾
Yes, this Quoted-Printable encoder/decoder is completely free with no signup, email, or usage limits.
Is my data safe?▾
Yes, 100% safe. All encoding and decoding happens in your browser. Your text never leaves your device.
What is Quoted-Printable?▾
Quoted-Printable is a MIME encoding defined in RFC 2045, used mainly in email to safely transmit text with non-ASCII or problematic characters. Each problematic byte is encoded as "=XX" (hex), while readable ASCII is kept as-is.
What is the difference between Quoted-Printable and Base64?▾
Quoted-Printable keeps most text readable (only problematic characters are encoded), so email bodies remain somewhat legible in raw form. Base64 encodes everything into a compact alphabet (A-Z, a-z, 0-9, +, /), making the text unreadable but more compact. QP is used for mostly-text content; Base64 for binary or non-text data.
What is a soft line break?▾
A soft line break in QP is a "=" at the very end of a line, indicating that the line continues. It is not a newline character — it is a formatting artifact to keep lines under 76 characters. When decoding, the "=" and the following newline are removed.
What is "=20" and "=09"?▾
=20 is the QP encoding for a space (ASCII 32, hex 20). =09 is a tab (ASCII 9, hex 09). They are used to preserve trailing whitespace, which mail servers might otherwise strip.
Why do I see =C3=A9 in QP text?▾
That is the UTF-8 byte sequence for "é" (U+00E9). In UTF-8, é is encoded as bytes 0xC3 0xA9, and each byte is QP-encoded as =C3=A9. Decoding it reconstructs the é character.
Does Quoted-Printable support emoji?▾
Yes. Emoji are 4-byte UTF-8 sequences (32 bits), so they appear as 4 QP-encoded bytes (e.g., =F0=9F=98=80 for 😀). This tool handles them correctly.