Is this listing character counter free?

Yes. It is completely free, runs entirely in your browser, and needs no account or signup.

Does my product text get uploaded anywhere?

No. Every count, byte measurement, pixel calculation, score and Fix It change is computed locally on your device with no server calls and no telemetry.

Does Fix It rewrite my copy or invent product claims?

No. Fix It only applies safe structural changes: trimming to the limit, formatting specs as bold key-value pairs, removing emojis, de-shouting all-caps and cleaning spacing. It never invents specifications or marketing claims. Answer phrasing for AEO is suggested for you to add, not written automatically.

Why does Amazon show bytes instead of characters?

Amazon measures backend search terms in UTF-8 bytes, not characters. Many accented and non-Latin characters use more than one byte each, so the tool counts bytes and keeps you under the 250-byte cap.

What is the 600px limit on the Shopify SEO title?

Google truncates SEO titles by rendered pixel width, roughly 600px on desktop, rather than by a fixed character count. The pixel gauge measures your title's real width so a short but wide title does not get cut off.

Are the character limits guaranteed accurate?

Common caps reflect current best practice. Limits that vary by category or region are flagged with a verify badge, so confirm those against the marketplace official seller documentation before you publish.

Listing Character Counter

Per-marketplace limits, Fix It cleanup and live SEO / GEO / AEO scoring. 100% in your browser, zero telemetry.

Marketplace Focus keyword

Listing health

Overall0

Keyword density0%

Keyword hits0

Spec key-value pairs0

Answer phrases0

Word count0

Reading ease-

What is the Listing Character Counter?

It is a free, browser-based tool that checks your product listing text against the exact character limits for Amazon, eBay, Etsy, Shopify, Walmart and TikTok Shop, then scores the copy for SEO, GEO and AEO in real time. It counts Amazon backend keywords in UTF-8 bytes, measures the Shopify SEO title by pixel width against the 600px search cap, scans for listing-health issues, and can clean the copy in one click. Nothing is uploaded.

How to use it

1
Pick your marketplace
Select a platform to load its exact metadata fields and character limits.
2
Enter your focus keyword
The scorer uses it to measure keyword placement and density across every field.
3
Paste your listing copy
Watch the live bars, the search preview and the listing health panel. Amazon backend terms count in UTF-8 bytes; the Shopify SEO title shows its pixel width against the 600px cap.
4
Run Fix It
One click trims over-limit fields, formats specs as bold pairs, strips emojis and de-shouts all-caps. Undo restores the original. It never invents claims.
5
Export or copy
Copy per field, download as text or JSON, then paste into your seller dashboard. No data leaves your browser.

Marketplace limits at a glance

Marketplace	Title cap	Standout constraint

Category-varying caps are flagged verify in the tool. Confirm against official seller docs before publishing.

Frequently asked questions

Last updated 2026-07-30 · build a3