Social Media Caption Analyzer — Score Your Posts
Paste any caption, pick your platform, and get an instant engagement score with actionable tips to optimize your post before you publish.
Pro Tip: Write your hook first, add a CTA, sprinkle in 2-3 power words, and finish with platform-appropriate hashtags for the highest score.
Your score will appear here
Paste a caption on the left and hit Analyze Caption to see your engagement score with detailed breakdowns.
How the Caption Analyzer Works
Our free caption analyzer evaluates your social media post across six data-driven dimensions that research shows correlate with higher engagement. Each dimension is scored from 0 to 100, then combined into a weighted overall score.
The algorithm adapts to the platform you select. A 1,500-character caption that scores highly on LinkedIn would score poorly for X / Twitter, where brevity wins. This platform-aware scoring helps you tailor content for each channel.
Use the analyzer before scheduling posts with a social media scheduler to ensure every caption is optimized. Pair it with our hashtag generator and viral hook generator for a complete content optimization workflow.
What Makes a High-Scoring Caption
- Right length for the platform — Instagram favors 125-150 chars, LinkedIn rewards 1,300-2,000 chars, and X performs best at 71-100 chars.
- Easy to read — Short sentences, simple words, and line breaks. Social media audiences skim; make every word count.
- Emotional triggers — Power words like “proven”, “secret”, and “free” create curiosity and urgency that drive taps and saves.
- Clear call to action — Tell your audience exactly what to do: comment, save, share, or tap the link in your bio.
- Platform-appropriate hashtags — Use our hashtag generator to find the right mix of broad and niche tags.
- Scroll-stopping hook — The first line determines whether people read the rest. Start with a question, number, or bold claim.
Platform-Specific Caption Best Practices
Keep captions at 125-150 characters for maximum visibility. Front-load your hook since text truncates after 125 chars. Use 3-5 targeted hashtags — not 30 random ones. Include one clear CTA per post. Schedule your posts at optimal times using an Instagram scheduler.
Aim for 80-150 characters. TikTok captions are supplementary to the video, so be punchy. Use 3-5 hashtags mixing trending and niche tags. Questions in captions drive comments, which boosts the algorithm. Plan your content with a TikTok scheduler.
LinkedIn rewards long-form captions of 1,300-2,000 characters. Use line breaks generously — walls of text kill engagement. Place 3-5 hashtags at the bottom. Start with a strong hook followed by a line break to trigger the “see more” click. Manage your content with a LinkedIn scheduler.
The sweet spot is 71-100 characters despite the 280-character limit. Use 1-2 hashtags maximum — X prioritizes keywords over tags. Threads perform well when the first tweet hooks readers. Schedule threads with an X scheduler.
Keep posts at 80-250 characters. Facebook's algorithm favors posts that generate meaningful conversations, so ask questions and encourage comments. Use 1-3 hashtags. Emotional and relatable content consistently outperforms promotional copy on this platform.
Threads favors conversational, concise posts of 80-150 characters. The platform rewards authenticity over polish. Use 2-4 hashtags and focus on starting conversations. Cross-post your best-performing X content to Threads for extra reach.
Power Words That Boost Engagement
Power words trigger emotional responses that drive likes, comments, saves, and shares. Our caption analyzer checks your text against a curated list of 120+ high-impact words. Here are some of the most effective categories to incorporate into your captions. Use our AI content generator to automatically include power words in your posts.
Curiosity
secret, hidden, revealed, underground, insider, forbidden, banned, controversial, truth, myth
Urgency
now, today, limited, urgent, instant, breaking, finally, last, critical, deadline
Value
free, proven, guaranteed, exclusive, ultimate, best, essential, blueprint, formula, hack
Emotion
love, obsessed, incredible, mind-blowing, heartbreaking, hilarious, stunning, magical, epic, fierce
How to Use the Caption Analyzer
Pick your platform
Select Instagram, TikTok, LinkedIn, X, Facebook, or Threads so the scoring adapts to platform-specific best practices.
Paste your caption
Drop your full caption including hashtags, emojis, and CTAs into the editor exactly as you plan to publish it.
Review your score
Get an instant overall grade plus individual scores for length, readability, emotion, CTA, hashtags, and hook strength with actionable suggestions.
Caption Analyzer FAQ
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