Free Amazon Listing Optimizer

How the Amazon listing optimizer works

The optimizer checks your listing text against Amazon’s published listing rules and well known best practice. It runs fully in your browser, so it works offline in the Hayyat Networks app and your listing never leaves your device.

What it checks

• Title: length against the limit you set (200 characters by default), no word used more than twice, no restricted characters such as ! $ ? _ { } ^ unless they are part of your brand, no promotional phrases such as free shipping or best seller, no ALL CAPS words, brand first.
• Bullets: five bullets, each under about 250 characters, no pricing, shipping or guarantee claims, no duplicates.
• Description: up to 2,000 characters, plain text, no links or contact details.
• Backend search terms: UTF-8 bytes against the limit (under 250 bytes in the US), shown as a raw count and as Amazon counts it without spaces and punctuation. It also flags repeated words, words already in the title, brand names, ASINs and subjective claims.
• Keywords: whether every word of each target keyword appears in the title, bullets or backend terms, and whether your main keyword sits in the first 80 characters of the title.

How the score works

Each check is a pass, improve or fix. Passes earn full points, improvements half and fixes none, and title, bullet count, backend size and keyword coverage count double. Singular and plural forms count as the same word.

Limitations

The score measures rule compliance and keyword coverage only. It does not predict rank or sales, and we never show search volumes because we do not estimate numbers. Some categories have their own style guides with lower limits, so adjust the limits to match yours. Default rates and limits checked November 2026. Fees and rules change, so confirm in your seller dashboard. Not affiliated with Etsy, Amazon, eBay or Walmart.