Web app · Business
DimShave: Ship Smaller
See the dimensional-weight penalty before you print a label — the 2026 USPS math, in your browser
Enter an item's L × W × H and weight; DimShave picks the smallest box it fits from a 13-box catalog plus your own, shows the 139-divisor math with whole-inch rounding, billable vs actual pounds, compares USPS, UPS and FedEx, and logs every shipment with a running DIM tally. Free, no install.
Stored in your browser only. Nothing you do in the web version is sent to our servers. Clear your browser data and it's gone — so export a backup from the in-app menu if you want to keep it.
In your browser
What you can do in DimShave: Ship Smaller on the web
Smallest compliant box
Every box the item fits in any orientation, sorted by volume, with the smallest highlighted and whether it stays under the 1,728 cu-in line.
Full 2026 DIM math
⌈L⌉ × ⌈W⌉ × ⌈H⌉ ÷ 139 laid out step by step, with what the old 166 divisor would have billed.
Billable vs actual
Whole-pound billable weight next to actual weight, with the DIM penalty called out in pounds and dollars.
USPS / UPS / FedEx comparison
Illustrative Ground rate cards ranked cheapest-first at your billable weight, with the recommended fill for the empty space.
Shipment log
Every saved box choice with billable weight, DIM penalty, carrier and estimated cost, plus DIM pounds per week and CSV export.
Your own boxes
Add the boxes you actually keep on hand; they join the bundled catalog in the smallest-fit search.
Screens
Every screen, rebuilt for the browser
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1
Measure
Item name, L × W × H and weight sliders, quick samples, and a live recommended-box preview.
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2
Best box
The recommended box with the threshold gauge, DIM math, billable vs actual, other fitting boxes and Save to shipments.
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3
Carriers
USPS, UPS and FedEx estimates at your billable weight, cheapest first, with recommended fill.
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4
Shipments
Count, boxes under 1 cu ft, total DIM pounds, DIM per week and the full log.
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5
Shipment detail
Measured size, box, actual and billable weight, carrier, cost and the box's threshold gauge.
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6
Boxes
Your own boxes and the 13-box bundled catalog, green under the threshold and red over it.
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7
Settings
The current USPS rule, catalog, backup and CSV export, sample data, erase and disclaimer.
Try it with sample data: Adds twelve logged shipments from the last five weeks (mug, hoodie, book, sneakers, board game, lamp and more) computed through the same engine, plus a custom Sneaker box. You can start fresh at any time.
Ready? It's free.
Sign in once and every All Things AI web app opens instantly. No install, no subscription, no data leaving your browser.
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Questions
Is the web version of DimShave: Ship Smaller free?+
Yes. Sign in with a free All Things AI account and use every screen — no subscription, no in-app purchases.
Where is my data stored?+
Only in this browser's local storage. Nothing you enter is sent to our servers, so we can't see it, back it up, or restore it. Clearing site data, a private window, or another device starts empty. Export a backup from the in-app menu to keep it.
Do I need an account?+
You can read about the app without one, but you must sign in to open it. Sign-in is free and takes a few seconds with Google.
How is the web version different from the DimShave: Ship Smaller iPhone app?+
There is no AR/LiDAR measuring in the browser — enter dimensions by hand or load a sample item; the iPhone app measures with the camera. Carrier costs are the same illustrative rate cards as the iPhone app, not live postage.