Substack Note character counter
Substack Notes are short-form posts in the Home feed, separate from newsletter posts and chats. Notes support text, links, mentions, images, GIFs, and video, but the text composer keeps them brief at 800 characters. Spaces, line breaks, emoji, handles, and URLs all consume room before the note is shared.
Substack Note character limit
The 800-character limit keeps Notes fast and feed-friendly while leaving more room than a microblog post. Longer thinking belongs in a full Substack post.
Examples
Counts use plain character lengthNew essay: why small editorial systems beat one giant content calendar. It includes the checklist I use before publishing.
New essay: why small editorial systems beat one giant content calendar. It includes the checklist I use before publishing, the review rhythm that keeps drafts moving, the mistakes I made, and the template readers asked for.
A useful test for any newsletter intro: would the reader still understand the point if the link preview disappeared?
A useful test for any newsletter intro: would the reader still understand the point if the link preview disappeared, the headline was truncated, and the post was seen out of context in a busy feed?
Substack Note character limit FAQ
- How many characters are allowed in Substack Note?
- Substack Note has a 800-character limit.
- Why does Substack Note have a character limit?
- The 800-character limit keeps Notes fast and feed-friendly while leaving more room than a microblog post. Longer thinking belongs in a full Substack post.
- Do spaces count toward the Substack Note limit?
- Yes, spaces count toward character limits on all major platforms.
- What happens if I exceed the Substack Note limit?
- The platform usually rejects the post or truncates it. Use the counter above to stay safely under 800 characters.