Listing Field Character Limit Checker
Every Amazon listing field has a hard limit, and exceeding it gets your text cut off or your edit rejected. The limits aren't obvious from the Seller Central box โ it just stops accepting input or silently drops the overflow. This tool checks any field against its real limit so you know before you hit save.
Pick the field and paste your text. Title caps at 200 characters. Each bullet point gets 500 characters โ separately, not shared. The description allows 2000. And the backend search terms field is 250 bytes, which is its own headache (more on that below).
Why the limits bite
The title is the one most people breach. You think you're being thorough and suddenly you're at 230 characters with the brand name still missing. Amazon truncates titles in search results, so the part that gets cut is often the part customers needed. Bullets are more forgiving at 500 each, but I've seen sellers write a paragraph per bullet and watch it clip mid-sentence.
The description limit of 2000 is generous, but if you're pasting from a Word doc you may inherit hidden characters and line breaks that eat space for nothing.
The bytes trap on search terms
The search terms field is the sneaky one because it's measured in bytes, not characters. For plain English, a byte is a character. But the moment you paste a curly quote, an em dash, or an accented word, the byte count climbs past the character count. Amazon enforces bytes, so a string that looks like 248 characters might actually be 251 bytes and get truncated. This tool counts real UTF-8 bytes for that field, so the number matches what Amazon sees.
Use it as a gate
Check each field right before you publish or before a big bulk edit. If a field is over, you find out here instead of from a suppressed listing or a rejected upload. It's the unglamorous step that keeps your copy intact.