Amazon FBA Listing Optimizer: Character Limit Checker (Free)

📦 Amazon FBA Listing Optimizer

Track Amazon title, bullet, and description character limits in real time - and catch banned words before Amazon does.

Free up to 800 wordsBanned word detection100% private
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No more listings suppressed by banned words, we flag them first.

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No more titles cut off on mobile, preview the fold before you post.

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No more going over the limit, stay in bounds automatically.

🎯

No more keyword stuffing, hit the density that ranks and reads.

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No more messy titles, build a compliant one from your keywords.

Free up to 800 words per session. Pro removes the limit and unlocks all three Pro tools for $12 a month billed annually (save 37%), or $19 a month, with a 7-day free trial. Cancel anytime.

⚠️ Free tier limit reached

Analysis is paused because your text exceeds 800 words. Unlock unlimited words to continue.

🔒 Unlock Unlimited Words
📦 Product Title0 / 200
● Bullet Points0 / 5 filled
Bullet 10 / 500
Bullet 20 / 500
Bullet 30 / 500
Bullet 40 / 500
Bullet 50 / 500
📄 Product Description0 / 2000
🔑 Backend Search Terms0 / 250 bytes
📱 Mobile preview
Your title appears here…
$-
    Amazon's app shows about the first 80 characters of your title before it cuts off. Anything faded is hidden on mobile.
    Listing Health
    0
    Total Characters
    0
    Total Words
    —
    Listing Score
    Completeness checklist
    • Start typing to see your checklist.
    Compliance & warnings
    Banned-word and format checks appear here.
    Keyword density
    Your most-used keywords appear here.

    Seller Utilities

    Free browser tools for the rest of your FBA workflow. Everything runs locally, nothing is uploaded.

    🔍 ASIN Validator & Link Builder
    Enter a 10-character ASIN.
    📋 ASIN Extractor
    Extracted ASINs will appear here.
    🏷️ FNSKU / UPC / EAN Checker
    We'll detect the code type and validate it.
    💰 FBA Profit Calculator
    Referral fee (15%)$0.00
    Fulfillment + 3.5% fuel surcharge$4.04
    Product cost$0.00
    Total cost per unit$4.04
    Net profit per unit-$4.04
    Profit margin0.0%
    ROI on cost0.0%
    Break-even sale price$4.75

    Fees use Amazon's 2026 US estimates, including the 3.5% fuel surcharge and a $0.30 minimum referral fee. Fulfillment and referral figures are editable, paste your exact numbers from Amazon's Revenue Calculator or Seller Central before ordering inventory.

    🖼️ Image Requirements ChecklistManual
    • Main image on a pure white background (255,255,255)
    • At least 1000 x 1000 px so zoom works
    • Product fills about 85% of the frame
    • 6 or more images (aim for 7 to 9, plus a video)
    • No text, logos, or watermarks on the MAIN image
    • Include lifestyle, infographic, and size / scale shots
    • Show the product in use and key features up close

    Amazon can't verify your photos in the browser, so this is a reminder of what a strong image set needs. Tap each item to check it off; your ticks are saved on this device.

    Amazon FBA character limits at a glance

    • Product Title - 200 characters (some categories cap at 80 or 150)
    • Bullet Points - 500 characters each, five bullets total
    • Product Description - 2,000 characters including HTML tags
    • Backend Search Terms - under 250 bytes, which is not the same as characters

    Exceed a limit and Amazon may truncate the field, suppress the listing from search, or reject the upload entirely. The bars above turn amber at 80% and red when you go over, so you can see trouble coming before you paste into Seller Central.

    Why banned word detection matters

    Amazon prohibits promotional and unverifiable claims in listing copy. Phrases like "best seller," "guaranteed," "free shipping," and health claims such as "cures" or "FDA approved" can get a listing suppressed. The compliance check flags these instantly so you can rewrite before publishing.

    Your listing copy stays private

    Product listings are competitive assets. Everything here runs in your browser, so your titles, bullets, and descriptions are never uploaded to any server.

    Frequently Asked Questions

    200 characters for most categories, though some restrict titles to 80 or 150. Mobile search displays only the first 70 or so, which is why the main keyword should come first.
    500 characters per bullet, with five bullets allowed. Most high-converting listings use 150 to 250 characters per bullet for readability.
    Amazon prohibits promotional claims like "best seller" or "free shipping" and unverifiable health claims. These can trigger suppression, so the tool flags them before you publish.
    The optimizer is free up to 800 words per session. Clear or shorten your text to keep using it free, or upgrade to Pro for unlimited words from $12 per month.

    Other Professional Modules

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    Part of UltraWordCounter Pro, one subscription covers all three tools. Also try the SEO Keyword Density Analyzer and the Social Media Character Tracker.

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