Preheader
PREHEADER: Your preview text here
Must be the first line of textarea input. Sets the
email preview text shown in
inbox list view. Stripped from
the body.
Headings ## text
## Section Title
Renders as bold text.
Only ## is supported.
Inline Code `text`
Use `contenteditable` here.
Renders with a subtle
background highlight.
Links [text](url)
[Click here](https://example.com)
Markdown link syntax.
Also works inside list items
and [BOX] blocks.
Horizontal Rules [HR]
[HR]
[HR=double]
[HR=wave]
[HR=dots]
[HR=stars]
[HR=dashed]
[HR=mixed]
------------------------------
==============================
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
..............................
******************************
- - - - - - - - - - - - - - -
=-==-==-==-==-==-==-==-==-==-=
Centered Text [CENTER]
[CENTER]
Hello World
[/CENTER]
Hello World
Progress Bar [PROGRESS]
[PROGRESS:75]
[PROGRESS:50:Loading]
[====================------] 75%
Loading [===========--------] 50%
Highlight [HIGHLIGHT]
[HIGHLIGHT]Important![/HIGHLIGHT]
Light mode: purple (#a5078f)
Dark mode: yellow (#fcd34d)
Use for emphasis/callouts.
Bold **text**
This is **bold** text.
Markdown syntax for bold.
Use for emphasis.
Lists - or *
- First item
- Really long item wraps
- Nested item
• First item
• Really long item wraps
nicely with indent
• Nested item
Box Styles [BOX]
[BOX]
Content here
[/BOX]
[BOX=rounded]...[/BOX]
[BOX=double]...[/BOX]
[BOX=heavy]...[/BOX]
[BOX=dashed]...[/BOX]
+----------------------------+
| Content here |
+----------------------------+
.-----------------------------.
'-----------------------------'
Tables [TABLE]
[TABLE]
Name,Score,Status
Alice,95,Pass
Bob,87,Pass
[/TABLE]
+============================+
| Name | Score | Status |
+============================+
| Alice | 95 | Pass |
|----------------------------|
| Bob | 87 | Pass |
+--------+-------+-----------+
Calendar [CAL]
[CAL:2026-01]
[CAL:2026-01-15]
+----------------------------+
| January 2026 |
+----------------------------+
| Su Mo Tu We Th Fr Sa |
| 1 2 3 4 |
| ... |
| 11 12 13 14 [15] 16 17 |
+----------------------------+
Use YYYY-MM-DD to highlight
Banner [BANNER]
[BANNER]HI[/BANNER]
___
|__| |
| | _|_
~5 chars/letter, fits ~6 chars
Buttons [BUTTON]
[BUTTON Click Me](https://example.com)
[BUTTON Sign Up](https://signup.com)
Bulletproof VML/HTML buttons.
Light: black bg, white text
Dark: white bg, black text
Add blank line between buttons.
Maze [MAZE]
[MAZE]
Generates a random solvable
30x37 character maze.
Start: > End: X
Q&A Boxes
Q: What is your choice?
A: Option 1
A: Option 2
A: Option 3
+----------------------------+
| What is your choice? |
+----------------------------+
| [ ] Option 1 |
| [ ] Option 2 |
| [ ] Option 3 |
+----------------------------+
ASCII Blocks [ASCII]
[ASCII]
+--------+
| Art |
+--------+
[/ASCII]
Preserves exact spacing.
Max 30 chars per line.
Spaces become non-breaking.
No-Break [NOBR]
Don't break
[NOBR]this phrase[/NOBR]
Prevents line wrapping
within the tagged text.
Symbols (copy/paste)
✓ ✗ ★ ☆ ✦ • → ← ↑ ↓
◀ ▶ ▲ ▼ ● ○ ■ □ ◆ ◇
☐ ☑ ☒ ⚠ ℹ ♥ ♦ ♣ ♠
Auto-forced to text mode.
Use for status, lists, icons.
check/x/stars/arrows/shapes