Free tool

Reddit character counter

Check your Reddit title against the 300-character cap and your text post against the 40,000-character limit.

Reddit titles are capped at 300 characters and cannot be edited after posting, so they are the field worth counting carefully. Text posts allow 40,000 characters and comments allow 10,000.

Reddit character limits

Title300 characters (not editable after posting)
Text post body40,000 characters
Comment10,000 characters
Username20 characters

What counts, and what doesn't

  • Titles cannot be edited after posting. Count them before you submit, not after.
  • Individual subreddits often impose stricter title and body rules than Reddit's global limits.
  • Long text posts are normal on Reddit; the 40,000-character cap fits roughly 6,000 words.

Frequently asked questions

What is the Reddit title character limit?

300 characters, and titles are permanent once posted. Many subreddits enforce shorter or formatted titles on top of that.

How long can a Reddit post be?

Text posts allow 40,000 characters, around 6,000 words. Comments allow 10,000 characters.

Can I edit a Reddit title after posting?

No. You can edit the body of a text post, but the title is fixed, which is why counting it beforehand matters.

Write once, and it just fits

posthell tailors your post per network and warns you the moment a version runs over, so you never ship a truncated Reddit post. Schedule to 15 networks from one box.