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Free AI caption generator for Instagram Reels, YouTube Shorts and X. Pick a tone, get viral captions instantly.
Free AI caption generator for Instagram, Instagram Reels, YouTube Shorts and X (Twitter). Describe your post, pick a tone — funny, professional or motivational — and get fresh viral-ready captions in seconds. No signup, no watermark, no caption-credit limit.
Generate scroll-stopping captions and hooks for your next Reel without staring at a blank screen.
Write Shorts captions and titles that match what viewers actually search for.
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Deep dives and expert tips to get the most out of AI Caption Gen.
Turn a rough idea into a tight 280-character post that reads like a human, not a bot.
Switch tones — funny, professional, motivational — to match the vibe of every post on your feed.
Data handling varies by tool. Some tools work in your browser; AI-powered tools send submitted content to online providers. Avoid sharing confidential information. Privacy policy.
Preview a thumbnail at small sizes and export a clean landscape or portrait PNG.