Social Media Caption Writer
Generate platform-specific, engaging captions that drive engagement and align with your brand voice.
Capabilities
- Write captions tailored to each platform's best practices
- Generate multiple caption variations for A/B testing
- Suggest relevant hashtags (platform-appropriate quantity)
- Include engagement hooks and CTAs
- Adapt tone from professional to casual
- Optimize for character limits and formatting
Platform Specifications
| Platform |
Max Length |
Hashtags |
Tone |
| Instagram |
2,200 chars |
5-15 |
Visual, storytelling |
| LinkedIn |
3,000 chars |
3-5 |
Professional, insightful |
| Twitter/X |
280 chars |
1-2 |
Concise, witty |
| Facebook |
63,206 chars |
1-3 |
Conversational |
| TikTok |
2,200 chars |
3-5 |
Trendy, authentic |
Instructions
- Identify Platform: Determine target platform(s)
- Understand Context: Review content being promoted (image, video, link, etc.)
- Define Goal: Engagement, traffic, awareness, or conversion
- Set Tone: Match brand voice guidelines
- Generate Variations: Create 2-3 options per platform
- Add Elements: Hashtags, emojis, CTAs as appropriate
Input Format
Provide:
- Content Description: What are you posting? (image, video, carousel, link)
- Key Message: Main point to communicate
- Platform(s): Target social networks
- Brand Voice: Professional, casual, playful, inspirational, etc.
- Goal: What action should viewers take?
- Constraints: Any words/phrases to include or avoid
Output Format
## [Platform Name]
### Option A
[Caption text with emojis where appropriate]
**Hashtags**: #hashtag1 #hashtag2 #hashtag3
**CTA**: [Call to action]
**Best posting time**: [Suggested time]
### Option B
[Alternative caption]
...
---
Example Usage
Input:
Content: Behind-the-scenes photo of team brainstorming
Message: We value collaboration and innovation
Platforms: Instagram, LinkedIn
Voice: Professional but approachable
Goal: Increase brand awareness and engagement
Output:
Instagram - Option A
✨ Where the magic happens.
Our team's best ideas don't come from solo work—they come from moments like these. Whiteboards full of possibilities, coffee cups everywhere, and the energy of "what if?"
This is what innovation looks like at [Brand]. Messy, collaborative, and always exciting.
What does your creative process look like? 👇
Hashtags: #BehindTheScenes #TeamWork #Innovation #CompanyCulture #BrainstormSession
CTA: Comment below
Best posting time: Tuesday/Thursday 11am-1pm
Best Practices
- Hook First: Lead with the most compelling part
- Line Breaks: Use white space for readability (Instagram, LinkedIn)
- Emoji Strategy: Use purposefully, not excessively
- Question Ending: Boost comments with engaging questions
- Hashtag Placement: Instagram (first comment or end), LinkedIn (within text)
Tone Variations
- Professional: Data-driven, industry insights, thought leadership
- Casual: Relatable, emoji-friendly, conversational
- Playful: Humor, pop culture references, trendy formats
- Inspirational: Motivational, story-driven, emotional connection
- Educational: Tips, how-tos, value-first content
Limitations
- Cannot guarantee virality or engagement rates
- Hashtag trends change rapidly; verify before posting
- Platform algorithms update frequently
- Cultural references may not translate across regions
- Requires human review for brand alignment
1---2name: social-media-caption-writer3description: Creates engaging social media captions optimized for each platform (Instagram, LinkedIn, Twitter/X, Facebook, TikTok). Use when preparing social content, building content calendars, or repurposing content across platforms. Includes hashtag suggestions and CTA variations.4---5
6# Social Media Caption Writer
7
8Generate platform-specific, engaging captions that drive engagement and align with your brand voice.
9
10## Capabilities
11
12- Write captions tailored to each platform's best practices
13- Generate multiple caption variations for A/B testing
14- Suggest relevant hashtags (platform-appropriate quantity)
15- Include engagement hooks and CTAs
16- Adapt tone from professional to casual
17- Optimize for character limits and formatting
18
19## Platform Specifications
20
21| Platform | Max Length | Hashtags | Tone |
22|----------|-----------|----------|------|
23| Instagram | 2,200 chars | 5-15 | Visual, storytelling |
24| LinkedIn | 3,000 chars | 3-5 | Professional, insightful |
25| Twitter/X | 280 chars | 1-2 | Concise, witty |
26| Facebook | 63,206 chars | 1-3 | Conversational |
27| TikTok | 2,200 chars | 3-5 | Trendy, authentic |
28
29## Instructions
30
311. **Identify Platform**: Determine target platform(s)
322. **Understand Context**: Review content being promoted (image, video, link, etc.)
333. **Define Goal**: Engagement, traffic, awareness, or conversion
344. **Set Tone**: Match brand voice guidelines
355. **Generate Variations**: Create 2-3 options per platform
366. **Add Elements**: Hashtags, emojis, CTAs as appropriate
37
38## Input Format
39
40Provide:
41- **Content Description**: What are you posting? (image, video, carousel, link)
42- **Key Message**: Main point to communicate
43- **Platform(s)**: Target social networks
44- **Brand Voice**: Professional, casual, playful, inspirational, etc.
45- **Goal**: What action should viewers take?
46- **Constraints**: Any words/phrases to include or avoid
47
48## Output Format
49
50```markdown
51## [Platform Name]
52
53### Option A
54[Caption text with emojis where appropriate]
55
56**Hashtags**: #hashtag1 #hashtag2 #hashtag3
57**CTA**: [Call to action]
58**Best posting time**: [Suggested time]
59
60### Option B
61[Alternative caption]
62...
63
64---
65```
66
67## Example Usage
68
69**Input**:
70```
71Content: Behind-the-scenes photo of team brainstorming
72Message: We value collaboration and innovation
73Platforms: Instagram, LinkedIn
74Voice: Professional but approachable
75Goal: Increase brand awareness and engagement
76```
77
78**Output**:
79
80### Instagram - Option A
81✨ Where the magic happens.
82
83Our team's best ideas don't come from solo work—they come from moments like these. Whiteboards full of possibilities, coffee cups everywhere, and the energy of "what if?"
84
85This is what innovation looks like at [Brand]. Messy, collaborative, and always exciting.
86
87What does your creative process look like? 👇
88
89**Hashtags**: #BehindTheScenes #TeamWork #Innovation #CompanyCulture #BrainstormSession
90**CTA**: Comment below
91**Best posting time**: Tuesday/Thursday 11am-1pm
92
93## Best Practices
94
951. **Hook First**: Lead with the most compelling part
962. **Line Breaks**: Use white space for readability (Instagram, LinkedIn)
973. **Emoji Strategy**: Use purposefully, not excessively
984. **Question Ending**: Boost comments with engaging questions
995. **Hashtag Placement**: Instagram (first comment or end), LinkedIn (within text)
100
101## Tone Variations
102
103- **Professional**: Data-driven, industry insights, thought leadership
104- **Casual**: Relatable, emoji-friendly, conversational
105- **Playful**: Humor, pop culture references, trendy formats
106- **Inspirational**: Motivational, story-driven, emotional connection
107- **Educational**: Tips, how-tos, value-first content
108
109## Limitations
110
111- Cannot guarantee virality or engagement rates
112- Hashtag trends change rapidly; verify before posting
113- Platform algorithms update frequently
114- Cultural references may not translate across regions
115- Requires human review for brand alignment
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