Optimisation
Free TikTok SEO Tool
Write a TikTok caption of under 150 characters that includes your keywords and a few hashtags, from a description of the video.
Why the caption is short
TikTok lets a video caption run to 2,200 characters, but this tool writes under 150. A short caption is quick to read over a playing video, and it forces the keyword to the front. If you want a longer caption, use the short one as your opening line and carry on beneath it.
Example input
Description: “Three ways to fold a fitted sheet, filmed from above, for people who usually give up and roll it into a ball”. Keywords: how to fold a fitted sheet, laundry hacks. Style: casual. You’ll get one or two short lines with the main phrase in them and a few hashtags.
Questions about this tool
Up to 2,200 characters on a video, and hashtags count towards that. This tool keeps to under 150 so the caption is quick to read.
No. It only uses the keywords you type in. To see what people search for, start typing your topic into TikTok’s search bar and look at the suggestions.
Nobody can promise that. The tool works your keywords into a readable caption, which helps a platform understand the post. What shows up in search is decided by the platform.
Yes. The AI tools are free with a fair-use limit per person and per day, so everyone can use them. If you reach it, the tool tells you when to try again.
Another tool for the next step
Free Social Media SEO Tool
Suggest keyword-aware captions for social media using your description and chosen keywords. Review the wording before using it.
Free Instagram SEO Tool
Suggest keyword-aware captions for Instagram using your description and chosen keywords. Review the wording before using it.
Free Social Media Post Checker and Character Counter
Check one draft against Instagram, TikTok, Facebook, YouTube, LinkedIn, X and Bluesky: character counts, hashtag and mention limits, media format and a preview showing where each caption is cut short.
Free X (Twitter) Character Counter
Count a post the way X does: links as 23, emoji as 2, against the 280 limit
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