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Amazon Character Limit Checker
Paste your listing fields. Get live char + byte counts that catch the 249-byte backend trap before it de-indexes your terms.
Live character + byte counter
Counts UTF-8 bytes accurately. Backend uses bytes; everything else uses characters.
Load a listing by ASIN
Counts run entirely in your browser. Nothing is uploaded or saved. Last verified against Seller Central on August 4, 2026 (includes the 75-character title rule effective July 27, 2026).
Why bytes, not characters? ▾
A character is what shoppers see. A byte is what Amazon's storage layer counts. For plain English text, 1 character = 1 byte and you can ignore the distinction. For multi-byte characters, the difference matters in the backend field.
- ASCII letters: 1 byte
- Accented Latin (ö, ü, ß, é, ñ): 2 bytes
- Japanese, Korean, Chinese: 3 bytes
- Emojis: 4+ bytes
For the full reference, read Amazon character limits 2026.
Common questions
Why does the backend field count bytes instead of characters? ▾
Amazon stores backend search terms as UTF-8 text and enforces a uniform storage cap across every marketplace. ASCII letters use 1 byte each, accented Latin (ö, ü, ß) uses 2, Japanese 3, emojis 4 or more. One byte over 249 in US/UK/EU silently de-indexes every backend term you saved, with no error in Seller Central.
What happens if my Amazon title goes over the limit? ▾
Since July 27, 2026, titles are capped at 75 characters in every category except media. Titles left over the limit are gradually rewritten with Amazon's AI recommendations; brand-registered sellers get 14 days to review the suggestion, everyone else gets the rewrite applied. Overflow details belong in the new Item Highlights field (up to 125 searchable characters).
Why does the tool show only the first 1,000 bytes of bullets as "indexed"? ▾
Amazon's search algorithm only indexes the first 1,000 bytes across all five bullet points combined. Anything past that is visible to shoppers but invisible to search. A clean target is roughly 200 ASCII characters per bullet × 5 bullets = 1,000 bytes.
Does this tool save my listing copy? ▾
No. Counting runs entirely client-side. The page never sends your text anywhere. Refresh the page and your inputs are gone.
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