Threads post preview
See your post as a Threads reply chain with media, check every 500-character post, and download a PNG.
Drafts and local media stay in this browser. No social account is needed.
Need a place to schedule your posts?
Opens in a new tab. Your text and threads carry over through sign-in in this browser. Upload media again, choose accounts and review before scheduling.
How to preview a Threads post
A Threads preview shows the chain the way readers scroll it: each post under the previous one with the connecting line, and carousels with swipe controls. Use it to check that every post stands on its own and that the break points feel natural.
Write the first post
Keep it under 500 characters; the preview updates as you type.
Add follow-ups and media
Add posts to build the chain, and images or videos for a carousel of up to 20 items.
Read it in order, then download
Switch between light and dark mode and save a PNG for review.
SimplePost recreates a Threads-style feed. It is not affiliated with Meta, and small differences can appear when Threads updates its interface.
Threads post preview FAQ
What is the character limit for a Threads post?
500 characters per post. Longer ideas can continue as a reply chain; SimplePost publishes up to 25 posts in a chain (20 during the trial).
Can I preview a Threads carousel?
Yes. Add several images or videos; Threads carousels can mix up to 20 items.
Can I schedule the thread after previewing it?
Yes. Choose Schedule this draft to open the text in SimplePost, connect Threads and schedule it as a reply chain.
Does SimplePost upload or store my draft?
No. The editor and preview run in your browser. Draft text, profile details and local media are not uploaded by this tool.
Before you publish on Threads
A preview checks the layout. SimplePost also checks these Threads rules when you schedule, and again when the post is sent.
| Text | 500 characters per post |
|---|---|
| Carousel | Up to 20 items, images and video can be mixed |
| Images | JPEG or PNG, up to 8 MB; extreme aspect ratios get a warning |
| Video | Up to 1 GB and 5 minutes, H.264 or HEVC with AAC, 23 to 60 fps, up to 25 Mbps |
| Reply chain | 25 posts (first post + 24 follow-ups); 20 during the trial |
- A Threads profile you can sign in to.
- Permission to publish and manage replies, granted during connection.
Ready to publish?
Schedule the finished Threads post with SimplePost, straight from ChatGPT, Claude, or another AI assistant.