Every character, byte, and pixel limit Amazon enforces — in one page you can bookmark. Plus the category exceptions that catch experienced sellers off guard.
Amazon’s listing limits live scattered across a dozen help pages, several style guides, and two major policy updates — the August 2024 bullet point rules and the January 2025 title requirements. Sellers end up learning them one suppression at a time, which is the expensive way.
This page pulls them into one reference. In our own audits at Fecoms, roughly 1 in 5 client listings we review carries at least one character-limit violation causing some form of hidden suppression or de-indexing — usually one the seller had no idea existed, because half of Amazon’s limits fail silently. One caveat before the tables: Amazon adjusts limits by category and marketplace, and changes them without ceremony. Treat this as your working reference, and treat your category’s style guide in Seller Central as the final word.
Amazon Listing Character Limits at a Glance (2026 Reference Table)
Short answer
Titles: 200 characters max (most categories). Bullets: 10–255 characters each under current policy, five per listing. Description: 2,000 characters. Backend search terms: under 250 bytes, not characters. Images: 1,000px minimum on the longest side for zoom, main image on pure white.
| Field | Limit | Unit | If you exceed it |
|---|---|---|---|
| Product title | 200 max (some categories lower; ~80 recommended) | Characters, incl. spaces | Suppression / auto-rewrite |
| Bullet points | 10–255 per bullet (policy); 5 bullets | Characters | Removed or rewritten |
| Product description | 2,000 (incl. HTML tags) | Characters | Won’t save |
| Backend search terms | Under 250 (US/UK/EU) | Bytes | Entire field silently ignored |
| Main image | Pure white bg, product ≥85% of frame | — | Suppression |
| Image size | 1,000px min longest side (zoom); 10,000px max | Pixels | No zoom / rejected |
| A+ Content | Varies by module (see Section 7) | Characters | Rejected at review |
The column worth staring at is the last one. Amazon’s limits don’t fail the same way: some throw errors, some quietly rewrite your content, and one — the backend field — simply stops working while looking perfectly fine in Seller Central. That difference in failure behavior is why sellers can carry violations for months without noticing.
Title Character Limits (and the 2025 Rules That Changed Everything)
Amazon’s title policy, in force since January 21, 2025, replaced years of inconsistent category-by-category enforcement with three hard rules. Per Amazon’s own Seller Central announcement:
- 200 characters maximum, including spaces, for most product categories. Several categories enforce lower ceilings — apparel is commonly held to around 125 — so the 200 is a ceiling, not an entitlement.
- Banned special characters:
! $ ? _ { } ^ ¬ ¦are prohibited unless they’re part of your registered brand name. Characters like~ # < > *are allowed only in functional contexts — “Style #4301” or “<10 lb” — never as decoration. - No word more than twice. Prepositions, articles, and conjunctions are exempt. “Bottle” twice is fine; three times gets flagged.
Enforcement has teeth: brand owners get correction suggestions in Review Listing Updates with a 14-day window to act, after which Amazon updates the title itself. Non-brand-owners can find and fix flagged titles in Manage All Inventory.
The number that matters more than 200:
Amazon recommends roughly 80 characters, and mobile search results truncate around 70–80. The 200-character ceiling is a compliance boundary; the ~80-character mark is where your click-through rate is decided. Amazon’s own suggested order: brand → flavor/style → product type → key attribute → color → size/pack count → model.
A worked example: the same product, two titles
Here’s how the rules play out on a real product. First, the title we see on catalogs built before 2025 — and it’s 194 characters, so it technically clears the length cap:
The first title dies twice under the 2025 policy: “water” and “bottle” each appear nine times against a limit of two, so Amazon will flag it for rewrite — and even before enforcement, everything after character 80 was invisible on mobile anyway. The compliant version keeps every distinct search concept, spends only 150 characters doing it, and lands the brand plus primary keyword plus size inside the mobile window. Nothing was lost except the repetition — which was earning nothing.
Bullet Point Character Limits and Best-Practice Length
Bullets are where “what the field accepts” and “what the policy allows” diverge most, which is why you’ll hear five different numbers from five sellers. Untangled:
| Layer | The number | What it governs |
|---|---|---|
| Policy (Aug 2024) | 10–255 characters per bullet | Amazon’s compliance standard — bullets outside this range can be removed or rewritten by Amazon’s systems |
| Field capacity | Up to 500 characters in many categories; 255 in others (e.g., apparel) | What Seller Central or a flat file will technically accept |
| Style guide advice | ~150–250 characters per bullet | Amazon’s readability recommendation; some category guides advise even less |
| Practical indexing ceiling | ~1,000 characters total across all five | Widely observed limit beyond which bullet text stops contributing to search indexing |
The August 15, 2024 policy update also banned emojis and most special characters in bullets, prohibited guarantee and refund language, and barred unverifiable claims — with Amazon explicitly reserving the right to remove non-compliant content and generate replacement bullets with AI. In practice that means a violating bullet doesn’t just underperform; it can be rewritten into something you didn’t write, on a page with your brand name on it. The working formula our team uses: five bullets around 200 characters each, one job per bullet, most important words first.
What a compliant bullet actually looks like
Both of these are roughly the same length — about 170 characters — which is exactly the point. Length was never the problem:
Count the violations in the first one against the August 2024 rules: “GUARANTEED” (refund/guarantee language, banned), “Best bottle on Amazon” (unverifiable superlative and a comparative claim), “Buy now!!!” (promotional language plus a banned character used three times), and ALL-CAPS shouting throughout. Under current enforcement, Amazon doesn’t just frown at that bullet — its systems can strip it and generate a replacement. The second bullet spends the same character budget on one specific, verifiable claim with numbers a shopper can hold the product accountable to. A leading phrase in caps used as a scannable label, as shown, remains standard practice; entire sentences in caps do not.
Product Description Character Limits
The standard description field takes 2,000 characters, and any HTML tags count toward the total — a detail that bites sellers migrating old descriptions full of <br> tags. Some categories and upload paths accept more, up to around 4,000 characters via flat file in certain cases, but 2,000 is the number to plan around.
Two nuances worth knowing. First, HTML support in descriptions has been progressively withdrawn — write for clean plain-text paragraphs rather than relying on formatting. Second, if you’re Brand Registered, A+ Content replaces the description’s display on the detail page, but the description field is still indexed and still surfaces in other placements — leaving it empty because “A+ covers it” throws away indexed real estate for free.
Backend Search Terms: The 250-Byte Rule Explained
Short answerThe backend Search Terms field is limited to under 250 bytes in the US, UK, and EU marketplaces — and bytes are not characters. Plain English letters cost 1 byte each, accented European characters cost 2, and Hindi, Japanese, or Chinese characters cost 3 or more. Exceed the limit by a single byte and Amazon ignores the whole field, silently.
This is the most misunderstood limit on Amazon, and the most dangerous, because it’s the only one that fails with zero feedback. The field saves. It displays in Seller Central. And it does nothing.
Why “bytes” is not “characters”
Marketplace limits differ, too — one more reason cross-marketplace sellers can’t copy-paste backend fields between regions:
| Marketplace | Backend search terms limit | Practical note |
|---|---|---|
| US, UK, EU marketplaces | Under 250 bytes | The default to plan around; ASCII text ≈ 249 usable characters |
| Japan | 500 bytes | More room — but Japanese characters cost 3 bytes each, so it’s roughly 160 characters of Japanese text |
| India | 200 bytes | The tightest field; Devanagari characters at 3 bytes each make every term expensive |
The rest of the rules: spaces between terms, no commas needed, no repeating words already in your title or bullets, no competitor brand names, no subjective words like “best.” The complete method — including how to mine terms worth the bytes — is in the 250-byte backend search terms playbook.
Live character & byte counter
Paste your backend search terms below. Watch the bytes, not the characters.
Paste your backend search terms below. Watch the bytes, not the characters.
Image Dimensions and Compliance Rules
Image rules are pixel and content rules rather than character counts, but they belong on any compliance sheet because they’re a leading cause of suppression:
| Rule | Requirement |
|---|---|
| Main image background | Pure white — RGB 255, 255, 255. Off-white or light grey fails automated checks |
| Frame fill | Product occupies 85% or more of the frame |
| Main image content | No logos, watermarks, text, badges, or props not included in the purchase; actual product, not an illustration |
| Minimum size | 1,000px on the longest side to activate zoom (1,600px+ recommended) |
| Maximum size | 10,000px on the longest side |
| Format | JPEG preferred; PNG, TIFF, and GIF accepted (no animation) |
Zoom is the reason to treat 1,000px as a floor rather than a target — shoppers who zoom are shoppers deciding. The full slot-by-slot specification, including secondary image strategy and per-category quirks, is in our Amazon product image requirements guide.
A+ Content Module Character Limits by Module Type
A+ Content (Brand Registry required) trades the 2,000-character description for designed modules — each with its own limits. The ones our team touches most often:
| Standard module | Key limits |
|---|---|
| Standard Text | Headline ~160 characters; body up to ~5,000 |
| Single Image Left / Right | Headline ~160; body ~1,000; image 300×300px |
| Header with Text | Headline ~150; body up to ~6,000 |
| Image & Text Overlay (light/dark) | ~300 characters over a 970×300px background |
| Comparison Chart | Up to 6 products, 10 comparison metrics |
| Single Image & Highlights | Text sections of ~1,000 / 400 / 400; up to 8 bullets at ~100 characters each |
| Technical Specifications | Up to 16 rows; spec names ~30 characters, definitions ~500 |
Two facts matter more than any individual limit. Basic A+ allows five modules per ASIN (Premium extends to seven, with video and interactive modules). And A+ text is not indexed by Amazon’s search the way your core listing is — Google indexes it, Amazon’s shoppers read it, but your ranking keywords must live in the title, bullets, description, and backend. Treat A+ limits as conversion budget, not SEO budget.
The Fields Nobody Audits: Brand, Model, and Subject Matter
Every guide covers titles and bullets. Almost none cover the smaller fields — and in our audits, these quiet fields cause a disproportionate share of the strangest problems.
Brand name. The flat-file specification caps the brand field at around 50 characters, but length is the least of it. The value you enter must match your Brand Registry record or your GS1 registration exactly — “HydraPeak” and “Hydra Peak” are different brands to Amazon’s matching systems, and a mismatch is behind a large share of the error-5665-style rejections sellers hit at creation. This field is also functionally permanent: changing a brand name on a live ASIN requires a support case with documentation, not an edit.
Model number and manufacturer part number. Short fields, typically capped around 40 characters, and skipped constantly because they feel like bureaucracy. They’re not — they’re matching keys. Amazon’s duplicate detection and B2B buyers both use them, and part numbers are searchable, which matters enormously in categories like auto parts, printer supplies, and electronics accessories where shoppers search by part number more often than by product name.
Subject Matter / generic keyword companions. Some categories expose additional keyword-adjacent fields through flat files — Subject Matter being the best known, historically structured as short lines of roughly 50 characters each. Its indexing weight has been debated by sellers for years, and Amazon has never clarified it; our position is pragmatic: where the field exists in your category template, filling it costs two minutes and carries zero risk, so fill it. Just never treat it as a substitute for the backend search terms field, whose indexing is not in dispute.
Safety and compliance attributes. The fastest-growing field group on Amazon. Battery information, country of origin, responsible-person contacts for EU markets, and category-specific certifications keep being promoted from optional to required — and each promotion silently strands listings that were complete when created. When a listing suppresses “for no reason,” a newly required attribute is the first place we look.
Category-Specific Rules Most Sellers Miss
Having built listings across 200+ categories, we can tell you where the general rules stop being enough. The length limits above apply everywhere; these categories stack content rules on top:
Supplements and health. The strictest copy environment on Amazon. No disease or treatment claims anywhere in the listing (“cures,” “treats,” “prevents” are flagged terms), supplement facts panels expected in imagery, and required compliance attributes that suppress the listing when blank. This category also sees stricter practical bullet limits than the field technically allows.
Beauty and personal care. Ingredient claims must be defensible, “FDA approved” is prohibited phrasing for cosmetics, and premium beauty is gated in several marketplaces. Expiration-dated products carry additional attribute requirements.
Electronics. Heavy required-attribute load — compatibility, wattage, connectivity, and model numbers aren’t optional fields here, and missing ones suppress. Warranty language in bullets is restricted; warranty documents belong in their designated upload, not your copy.
Food and grocery. Gated entry in many cases, allergen and ingredient disclosure requirements, expiration attributes, and temperature-sensitivity rules for FBA. Grocery style guides also run tighter on title formats than the general 200-character policy.
If you sell in any of these, pull your category’s official style guide from Seller Central’s product listing guidelines before writing a word — the general rules are the floor, not the whole building.
How We Got Here: Amazon’s Shrinking Limits, 2018–2026
The limits on this page look arbitrary until you see the direction of travel. They only ever move one way.
The tightening timeline
The pattern behind the pattern: every tightening targets the same behavior — keyword stuffing. The 500-character titles of the late 2010s were an arms race sellers ran against each other until pages became unreadable; Amazon responded by capping length, banning repetition, and, decisively, moving from “rules sellers should follow” to “rules our systems enforce automatically.” The August 2024 bullet update was the turning point — the first policy where Amazon openly said it would remove non-compliant content and generate replacements itself.
Which points to the practical takeaway for anyone building listings in 2026: don’t write to the current ceiling. Write to the trend. A title at 195 characters is compliant today and first in line for whatever tightens next; a title at 120 that says everything once will survive the next three policy updates without an edit. The sellers who spent 2025 rewriting thousands of titles were, for the most part, the ones who’d treated 200 as a target instead of a boundary.
Five Myths About Amazon Character Limits
Myth 1: “Filling every character improves ranking.” Length is capacity, not credit. Amazon’s systems reward relevance and, increasingly, penalize stuffing — a 150-character title covering every concept once outranks a 200-character title repeating its head keyword, and post-2025, the repetitive one gets rewritten anyway.
Myth 2: “Backend keywords need commas.” They don’t. Commas aren’t required, and every comma is a byte you paid for and got nothing from. Separate terms with single spaces.
Myth 3: “If my backend terms were over the limit, Amazon would tell me.” The opposite of true, and the single most expensive myth on this page. The field saves normally, looks normal, and does nothing. No error exists. This is why byte-checking belongs in every audit.
Myth 4: “A+ Content adds keyword juice.” A+ text isn’t indexed by Amazon’s search the way core listing fields are. Google indexes it, and it converts shoppers who’ve already found you — both valuable — but a ranking keyword placed only in A+ is a keyword you don’t rank for.
Myth 5: “Character limits are the same everywhere Amazon operates.” Backend byte limits differ by marketplace (Japan’s 500 against India’s 200), title conventions differ by category style guide, and required attributes differ by region — EU markets carry compliance fields the US doesn’t. A catalog copied across marketplaces unchanged is a catalog with silent violations in at least one of them.
What Happens When You Violate a Character Limit
Not all violations are punished equally, and knowing the failure mode tells you where to focus audits:
Violation severity: how each field fails
The silent end of this scale is where revenue disappears without a single notification.The pattern to internalize: the quieter the failure, the longer it costs you. A description that won’t save gets fixed in five minutes because Amazon forces the issue. A backend field one byte over its limit can sit dead for a year. That asymmetry is exactly why our audits find character-limit violations on 1 in 5 listings — the loud ones got fixed at creation; the silent ones never announced themselves.
Character limits look like technical trivia until you realize that a single suppressed listing can cost a seller $5,000 to $50,000 in lost sales before they notice. We treat compliance as a revenue-protection layer, not a formatting rule.— Suresh Kumar, Fecoms
How to Audit Your Existing Listings for Compliance
A working audit sequence, in the order that catches the most damage fastest:
- Check for suppressions first. Manage Inventory → filter for suppressed and search-suppressed listings. These are your zero-revenue ASINs; everything else waits.
- Byte-check every backend field. Export via Category Listings Report or check each field with a byte counter (like the one above). Anything over the limit is a dead field — trim and resave.
- Run titles against the 2025 policy. Over 200 characters, banned special characters, or any word appearing three or more times. Check Review Listing Updates for pending Amazon rewrites you haven’t seen.
- Scan bullets for policy triggers. Emojis, guarantee language, ALL-CAPS words, claims you can’t verify on the packaging. Compare the live page against what you submitted — Amazon may have already rewritten something.
- Verify main images at pixel level. Corner pixels at exactly 255/255/255, 85%+ frame fill, no text or badges, 1,000px+ longest side.
- Fill every attribute your category requires. Required-attribute gaps are the quiet suppression trigger that grows as Amazon adds fields to categories.
For a handful of ASINs, that’s an afternoon. Across hundreds of SKUs — especially catalogs built by different people over different policy eras — it’s a bulk data job: exporting flat files, byte-checking at scale, and re-uploading corrected fields without breaking variation relationships. That’s the workflow our Amazon product upload services for bulk catalog work are built around, and it’s the first pass our Amazon listing creation services run on every catalog we take over — compliance before optimization, because optimizing a suppressed listing is decorating a closed store.
Frequently Asked Questions
What is the character limit for an Amazon product title?
200 characters including spaces in most categories, enforced since January 21, 2025 — with some categories capped lower (apparel is commonly around 125). The same policy bans the special characters ! $ ? _ { } ^ ¬ ¦ outside brand names and limits any word to two appearances, excluding prepositions, articles, and conjunctions. Amazon recommends roughly 80 characters for mobile readability.
How many characters are allowed in Amazon bullet points?
Amazon’s policy (enforced from August 15, 2024) requires 10–255 characters per bullet, though the field technically accepts up to 500 in many categories. Every listing gets five bullets. Practical guidance: around 200 characters per bullet, with the total across all five kept near 1,000 so everything stays within the observed indexing window.
How long can my Amazon product description be?
2,000 characters in the standard field — and HTML tags count toward the total. Some categories and flat-file paths accept up to around 4,000. If you’re Brand Registered, A+ Content replaces the description’s display, but the field itself stays indexed, so fill it anyway.
What happens if I exceed Amazon’s character limits?
Depends on the field. Descriptions refuse to save — loud and instantly fixed. Titles get a 14-day correction window for brand owners, then Amazon rewrites them; suppression is possible. Non-compliant bullets can be removed or AI-rewritten. Backend search terms fail worst: one byte over the limit and the entire field is silently ignored, with no error, no warning, and no visible difference in Seller Central.
Do Amazon character limits differ by category?
Yes. The 200-character title limit is a ceiling that several categories undercut (apparel ~125 being the best-known). Bullet field capacity varies between 255 and 500 characters by category. Regulated categories — supplements, beauty, grocery — layer content restrictions and required attributes on top of the length limits. Your category style guide in Seller Central always overrides the general numbers.
Where do I find the official Amazon style guide for my category?
In Seller Central, search Help for “style guides” or open the product listing guidelines section. Amazon publishes a general Quick Start Style Guide plus category-specific guides (Home, Beauty, Apparel, Electronics, and others) covering titles, bullets, images, and required attributes. When a category guide and a general rule disagree, the category guide wins.
Not sure which of your listings are silently suppressed?
The Fecoms compliance-first Amazon listing team will run your catalog through this exact audit — byte checks, policy checks, attribute gaps — and hand back the fix list ranked by revenue at risk.
