Free tool
Free TikTok caption generator
Type what your TikTok is about and pick what you want viewers to do. You get eight short captions with a call to action and a few hashtags from your topic. Free, no sign-up, and your topic stays in your browser.
Free TikTok caption generator
How to use it
Three or four steps, then make it yours.
- Describe the video in a few words.
- Pick a goal: comments, saves, shares or follows.
- Copy a caption, then add one detail only you would know.
Examples
What you get
Budget meal prep · saves
- Would you try budget meal prep? Save this for later. #budgetmealprep #budget #meal #prep
- Nobody warned me about this part of budget meal prep. Save this for later. #budgetmealprep #budget #meal #prep
Thrift flip · comments
- The thrift flip tip I wish I'd heard first. Tell me yours in the comments. #thriftflip #thrift #flip
- POV: thrift flip finally clicks. Tell me yours in the comments. #thriftflip #thrift #flip
Want captions in your own voice?
byline reads what you've already published, learns how you write, and gives that voice to Claude and ChatGPT, so the next caption sounds like you.
$0.99 for your first month for eligible monthly payers, no free trial.
Questions
About the TikTok caption generator
Is this TikTok caption generator free?
Yes. It's a free tool with no sign-up and no limit on how many times you use it.
Does it use AI?
Two ways, both on your device. The quick drafts come from templates, instantly. If your browser has a built-in AI model, or your computer can run one, it can also write captions with AI: the model runs on your device, so nothing you type is sent to byline or anyone else.
How long can a TikTok caption be?
Up to 4,000 characters, including hashtags (checked November 2026). Short captions still tend to read better on a moving video.
How many hashtags should I use on TikTok?
This tool adds up to four, taken from your topic. A few specific ones are easier to keep relevant than a long list.
How do I get captions that sound like me?
Connect your channels to byline. It reads what you've already published, builds a profile of how you write, and gives that profile to Claude and ChatGPT when you draft. $0.99 for your first month for eligible monthly payers, no free trial.