Will It Ship?
Free shipping label checker for resellers

Will it ship?

Stop losing your profit to surprise shipping charges. Enter your box once and see the right label for Poshmark, Mercari, Whatnot, Depop and eBay, and exactly what picking too small would cost you.

Try an example
Packed size (inches, outside of the box)
Packed weight (on a scale, with packaging)
Packaging
USPS will charge for – Tip: photograph the sealed package on your scale with a tape measure beside it. Carriers sometimes mis-measure (one seller's 8 oz mailer was billed as 5 lb), and that photo is your proof when you appeal.
Already charged?

Build your appeal

Tell it what happened. It checks whether your case is strong and works out your deadline for free. Pro adds the step-by-step appeal, the proof checklist and a ready-to-send message. Nothing you type leaves this page.

Where and what
What your label said
What you actually shipped

Plans

Free

$0
  • Label checker for Poshmark, Mercari, Whatnot, Depop and eBay
  • USPS and UPS size-pricing math, with tips to pick a cheaper box
  • Appeal check: whether your case is worth fighting, and your deadline

Pro

$5/month
  • Everything in Free
  • Step-by-step appeal instructions for every marketplace and carrier
  • Proof checklist and a ready-to-send appeal message for each charge
  • Unlimited appeals
  • Email alerts when Poshmark, Mercari, Whatnot, Depop or USPS change shipping rules
  • Cancel anytime