Free caption generator

This caption generator online analyzes the text you provide and understands the key idea, tone, and context of your message. It then uses a trained language model to rewrite that idea into clear, natural social captions, applying your chosen tone, length, and style settings. The system also pulls patterns from strong social media writing so your captions sound modern, conversational, and built for engagement, not robotic.

A good target is 20–30 words or around 125–150 characters. Instagram captions perform best when they’re long enough to add meaning without dragging on. Go longer when you’re storytelling or educating.

LinkedIn works well with thoughtful but concise writing. Aim for 15–25 words or 100–140 characters for most posts. If you’re sharing insights or experience, short paragraphs are fine too.

Keep captions short and supportive, under 20 words or roughly 100 characters is usually enough. This is because on TikTok, the video leads the message.

Yes, it’s completely free to use. No hidden charges and no credit card required.

There’s no single perfect length. Short captions grab quick attention. Longer captions help you tell a story and build a connection. Choose based on your message, not a strict number.

Aim for 6–15 words or 40–80 characters to keep attention quickly. Short and clear captions tend to work best on Facebook. Longer posts can work too if you’re sharing something thoughtful.

Around 10–17 words or 70–100 characters is a solid target as Twitter (X) favors brief and direct messages. Focus on clarity and impact.

Try to keep it between 20–30 words or around 100–125 characters to make the message clear and searchable. Pinterest benefits from short but descriptive captions.

No, your inputs and outputs are not saved unless you manually save them. Your ideas stay yours.