Free tool · No signup · 3 uses per day
Free eBay Description Generator
Turn any item photo into a buyer-ready eBay description. No signup, 3 free uses per day, instant results. Built on the same vision AI that powers FlowLister's full listing flow.
Free · no signup · 3 uses per day
What makes an eBay description actually convert
eBay descriptions don't sell items; they remove objections. By the time a buyer reads your description, they've already seen your title and photos and thumbed through the specifics panel. What gets them from “maybe” to “buy now” is the paragraph that answers the one question stopping them — usually a condition detail, a measurement, or a shipping question.That's the job.
The descriptions that convert best share three traits. They're scannable on mobile (70% of eBay traffic). They're specific (“25" inseam, 7" rise, 81% nylon” beats “fits great, soft material”). And they preempt the boring logistics questions before the buyer has to message you — shipping speed, smoke-free home, return handling, measurements. A buyer who has their questions answered by the description is a buyer who clicks Buy It Now instead of messaging and losing momentum.
The descriptions that lose sales share the opposite traits. Walls of ALL-CAPS text. Vague claims (“excellent condition” without proof). Boilerplate disclaimers (“NO RETURNS AS-IS NO QUESTIONS”) that signal to buyers you're hiding something. Thin 30-word descriptions that leave buyers unsure about the basics.
The 3-paragraph structure that works
Every high-converting eBay description we've analyzed follows the same three-paragraph shape. Scannable. Specific. Logistical. You can memorize it in 30 seconds and reuse it forever.
Paragraph 1 · The Hook
One or two sentences. Tell the buyer what the item is and why it's worth buying today. Mention the brand, the model, and the killer feature. Keep it under 50 words.
e.g. “Authentic Lululemon Align Leggings in Black, women's size 6 — the classic 25" inseam high-rise everyone asks about. Buttery-soft Nulu fabric and the signature slimming fit make these the go-to for yoga, Pilates, or running errands.”
Paragraph 2 · The Specs
The facts. Size, color, material, measurements, model number, care instructions, country of origin if relevant. Bulleted or comma-separated both work. 40–100 words. This is where buyers comparing three listings pick yours because yours has the answer theirs doesn't.
e.g. “Size: 6 · Inseam: 25" · Rise: High · Color: Black · Fabric: 81% Nylon / 19% Lycra Elastane · Care: Machine wash cold, hang dry. Made in Vietnam. Legit-check tag still attached in the waistband pocket.”
Paragraph 3 · Condition + Logistics
Honest condition assessment (flaws if any, with photos). Home environment (smoke-free, pet-free if true — never lie). Shipping speed and carrier. Communication promise. This paragraph converts more sales than the other two combined because it's answering the last objection before checkout.
e.g. “Condition: Excellent pre-owned — worn a handful of times, no pilling, no pulls. Smoke-free, pet-free home. Ships next business day via USPS Ground Advantage with tracking. Questions welcome — I respond same day.”
How long should eBay descriptions be?
Sweet spot: 150 to 300 words. Short enough to read on a phone screen in under 30 seconds, long enough to answer the obvious buyer questions. The three-paragraph template above naturally lands in this range without padding.
The exceptions both ways:
- ↓Under 50 words: Only OK for truly simple fixed-spec items (a specific Pokemon card, a common tool) where the title and item specifics already say everything. Even then, a short logistics paragraph (shipping speed, handling) pays for itself.
- ↑Over 400 words: Appropriate for high-ticket items (vintage designer bags, expensive collectibles, complex electronics) where buyers read every word. The rule of thumb: the more the item costs, the more description buyers will read. A $15 t-shirt doesn't need 400 words; a $1,500 vintage Coach bag does.
Cassini doesn't directly reward long descriptions, but it does reward sell-through rate and low return rate — both of which correlate with descriptions that answer questions. Longer for the right items = more sales = better ranking.
Description templates by category
The 3-paragraph shape stays constant; the specs paragraph changes by category. Copy the relevant block as a starting template and replace the bracketed fields.
Clothing
Specs to include: Brand · Size (numeric + letter) · Inseam/rise/length · Color · Material breakdown · Care instructions · Measurements across chest/waist/hips laying flat · Country of origin · Retail tag status (still attached / removed).
Collectibles
Specs to include: Year · Manufacturer · Set/series · Item number · Grading (if graded: grader, grade, cert #) · Edition/parallel · Storage (how it's been kept) · Provenance (if relevant) · Authentication notes.
Electronics
Specs to include: Brand · Model number (MPN) · Year/generation · Capacity/RAM · Unlock status · Battery health % (if applicable) · Included accessories (original box, charger, cable) · Functional test results · Firmware/OS version.
Home Decor / Housewares
Specs to include: Brand/maker · Era/style · Dimensions (L × W × H) · Weight (for large items) · Material · Set components · Country of origin · Markings / stamps / signatures · Intended use (decorative vs functional).
HTML in eBay descriptions: still allowed?
Short answer: basic HTML formatting, yes. Active content, no — eBay banned JavaScript, Flash, plugins, and external resources (iframes, external CSS, external images without https) back in 2017, and the policy has only tightened since.
What's still safe and useful in 2026:
- ✓Basic tags:
<b>, <strong>, <em>, <p>, <br> - ✓Lists:
<ul>, <ol>, <li>for spec rundowns - ✓Inline styling (colors, font sizes) — technically allowed but usually makes mobile display worse, not better
What will get your listing removed or downranked:
- ✕
<script>,<iframe>,<object>,<embed> - ✕External stylesheets and fonts
- ✕Images hosted off eBay's CDN (use
https://+ eBay image hosting, not your own server) - ✕Hidden text (color-matched-to-background for keyword stuffing)
Pragmatic take: plain-text descriptions with clean paragraph breaks convert as well as heavily-styled HTML and never trigger policy warnings. Use basic <strong> and list tags if you want; skip the rest.
AI description generation — what works, what doesn't
Vision AI in 2026 writes genuinely good eBay descriptions. Given a clear photo of a tagged item, GPT-4o and Claude Opus will nail the 3-paragraph structure, list correct specs, and match the tone experienced resellers use. For high-volume sellers, that's 5–10 minutes saved per listing.
Where AI consistently wins:
- •Branded clothing (Lululemon, Nike, Coach, Levi's) — the brand catalogs are well-represented in training data
- •Mainstream electronics (iPhones, gaming consoles, laptops) — AI knows the spec language buyers search for
- •Common housewares and home decor — Pyrex, Corelle, Tupperware, major furniture brands
Where AI still needs a human review pass:
- •Trading cards, sports cards, comics. Grading details, set names, and parallel identification need domain-specific verification. Pair AI with a comp-check tool — our Worth It tool is designed exactly for this.
- •Unbranded vintage + one-of-one. Without a brand signature, AI defaults to generic phrasing. Human sellers who know the vernacular (“mid-century atomic”, “cottagecore”, “Y2K grunge”) write better hooks.
- •Condition assessment. AI can't feel fabric pilling, see tiny scratches on a lens, or smell cigarette smoke. Always write the condition paragraph yourself — or give the AI your notes and let it format.
The pattern that beats both pure-AI and pure-manual: use AI for the hook and specs paragraphs, hand-write or tightly review the condition/logistics paragraph. It's exactly the workflow FlowLister's full listing flow supports — AI-drafted with a human-in-the-loop review before publish.
Related tools & guides
Frequently Asked Questions
Answers to the questions Google surfaces most for this topic.
Generate titles + descriptions + item specifics in one shot
FlowLister turns one photo into a complete eBay listing — title, description, item specifics, and comp-based pricing — in about 30 seconds. Publishes via Trading API so drafts stay editable on Seller Hub. 5 free listings with signup, no credit card.