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Free Threads caption generator
A caption has one job: get the first line read, then earn the next action, whether that is a save, a comment or a click. The generator writes three different captions for your post, each shaped to the platform's length limits and habits, with relevant hashtags.
Generate Threads captions
Free: 2 runs a day without an account, 10 a month with a free account.
Your result will appear here.
Threads at a glance
| Caption / post length | Up to 500 characters |
|---|---|
| Hashtags | One topic tag per post |
| Formats | Short text posts, images, short video and replies |
| Image size | 1080 × 1350 (4:5) for images |
| Good times to start with | Consumer: weekdays 7–9 AM and 12–2 PM Business: weekdays 8–10 AM Local business: weekdays 12–2 PM and 6–8 PM |
| Strongest days | Monday to Thursday |
Each post allows 500 characters and a single topic tag, so pick the one tag that describes the post best. Platform limits change from time to time, so check the app if a number matters.
Threads captions by niche
Questions
How many hashtags should I use on Threads?
Use one topic tag per post. Tags work best when they describe the post, not when they are added for reach alone.
What is the Threads character limit?
Captions or posts on Threads allow up to 500 characters. Each post allows 500 characters and a single topic tag, so pick the one tag that describes the post best.
When is the best time to post on Threads?
Good starting points: weekdays 7–9 AM and 12–2 PM for consumer audiences, weekdays 8–10 AM for business audiences. Strongest days are usually Monday to Thursday. Test these, then keep what wins in your own analytics.
Is the Threads caption generator free?
Yes. You can run it 2 times a day without an account, or 10 times a month with a free account. For more, credit packs start at $6 for 30 runs, and Pro is $29 a month for 1,500 runs.