FeeMath

AI Product Description Generator for Resellers

Upload 1 to 4 photos of what you're selling. In about 10 seconds you get a product description buyers trust, a title that fits the platform's limit, tags, a category and a price range. Six marketplaces, one click.

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10 free listings · no sign-up · photos not stored

Why sellers use it

  • Writes from your photos, not a blank form. It reads the label, color, style and visible flaws.
  • Follows each marketplace's rules: 80-character titles on eBay, Poshmark and Mercari, 140 on Etsy, 13 tags of 20 characters on Etsy.
  • Honest by design: it won't invent materials, measurements or "made in USA" claims the photo doesn't show. It leaves blanks like Pit to pit: __ in for you to fill.
  • Writes for six platforms at once so you can crosslist the same item in a minute.

How it works

  1. Add 1-4 photosFront, brand tag, size tag, any flaw.
  2. Pick Tick one or all six.
  3. Copy & postTitle, description and tags each have a copy button.

Marketplace limits we follow

PlatformTitle limitTags
eBay80 charactersItem specifics
Poshmark80 characters3 style tags
Mercari80 characters3 hashtags
Etsy140 characters13 tags, 20 chars each
DepopShort & catchy5 hashtags
TikTok Shop25-120 charactersSearch keywords

Limits checked October 2026. Marketplaces change rules, so we re-check them regularly.

Example output

Title · 70 characters

Levi's 505 Regular Fit Jeans Mens 34x32 Medium Wash Denim Straight Leg

Description
Classic Levi's 505 regular fit jeans in a medium blue wash.

- Size: 34x32 (tag)
- Waist laid flat: __ in
- Inseam: __ in
- Condition: pre-owned, light fading at the knees, no holes or stains seen

Ships fast. Bundle to save!
Tags

levis505straight leg jeans

Example item. Blanks like __ are left for you to measure; the AI never guesses numbers.

Tips for better reseller listings

  • Shoot the brand tag and the size tag. Those two photos give the AI most of the keywords buyers type.
  • Add one photo of any flaw. The description will mention it, which cuts returns and bad reviews.
  • Fill the measurement blanks before you post. Listings with measurements sell faster on every platform.
  • Use the price range as a starting point, then check sold listings on the platform before you set your price.
  • Copy the eBay version first. It's the most keyword-dense and easy to trim for other sites.

Before you price it, check your profit after fees with our free compare fees on all platforms.

Write your next listing in 10 seconds

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FAQ

Is this product description generator free?

Yes. You get 10 free listings with no sign-up. Pro is $12 a month for unlimited listings (fair use 500 a month).

Which marketplaces does it write for?

eBay, Poshmark, Mercari, Etsy, Depop and TikTok Shop. Pick one or several and you get a separate title, description and tags for each.

Can I use it for new products, not just used items?

Yes. It works for new, new-with-tags and pre-owned items. For pre-owned items it states the condition plainly, which marketplaces like TikTok Shop require.

Are my photos saved?

No. Photos are shrunk in your browser, sent once to write the listing, and not stored on our server.

Is the suggested price accurate?

It's an estimate based on the brand, item type and condition, not live sold data. Always compare with sold listings before you price.

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