Proof of Delivery — Before the Truck Leaves Your Dock.
Photograph the load, record the carrier, and your chain-of-custody evidence is done — no driver app, no receiver action required. Dated photos of exactly what left your dock, permanently attached to the slip, yours regardless of what anyone else does.
Your Proof is Complete Before the Truck Moves
The photos you take at the dock are your evidence — timestamped, permanent, and entirely yours. No driver app. No receiver action required.
"It wasn't on the pallet"
Photo Proof Before It Leaves
No printer on the floor
Create from Your Phone
He-said she-said disputes
Timestamped Audit Trail
Built for the Origin Shipper
Your proof is established at the dock. Everything after that only makes it stronger.
Build the Slip
Select your client and tap products as you load — takes 60 seconds
Share the Link
Send via SMS or email directly from your phone. Works offline, sends when you're back in range.
Your Proof is Already Done
Your dated photos are permanently attached to the slip the moment you create it. If the receiver confirms, the record gets stronger — but your evidence exists regardless.
We Speak Your Language
Don't let language barriers slow down your shipping. Stack Slip automatically translates the entire interface and your packing slips into your preferred language instantly.
+ over 130 more languages supported automatically
Everything You Need to Ship with Confidence
Built for the warehouse floor, not the office desk
Your Photos. Your Proof.
You photograph the load at the dock. Those dated images are your evidence — permanently attached to the slip, no receiver action needed.
Works Offline
Bad wifi on the dock? No problem. Creates slips anywhere, syncs when back online.
Product Library
Build your catalog once, tap to add items on every future slip.
Carrier Dispatch Notification
When a driver confirms pickup, their dispatch office is automatically notified — a timestamped handoff record no competitor in this price range provides.
Timestamped Audit Trail
Every view, confirmation, and photo is logged with a timestamp. Dispute-proof records.
Team Workspace
Invite workers to your workspace — shared products, clients, and slip history.
API & Webhooks
Connect your existing tools with our REST API and real-time webhook events.
Why This Exists
"I shipped a high-value custom order to a long-time client. They said they never received it. I knew it shipped. The software I was using could generate a packing slip — but only after you'd done all the data entry at the office first. My shop has poor connectivity. The truck was waiting. I shipped on the purchase order and figured I'd sort the paperwork later. There was no later. The dispute started immediately and I had nothing to show."
That shipment is what built Stack Slip.
Built for the Person at the Loading Dock
Not fleet managers. Not delivery drivers. The shipper handing a load to someone else's truck.
Small manufacturers
Shipping B2B on purchase orders via third-party LTL carriers
Custom fabricators
High-value single items — machinery, furniture, electronics — where one dispute erases the job margin
Wholesale distributors
Recurring quantity disputes from buyers claiming short shipments
Regulated goods shippers
Cannabis, food, beverage — defensible chain-of-custody required by law or contract
Cross-border shippers
Manufacturing to US buyers where freight broker disputes are frequent and documentation is informal
Warehouse teams
Multiple packers, shared records, auditable proof of what left the dock and who loaded it
If you're looking for route optimization, driver dispatch, or fleet tracking — that's Track-POD or Onfleet. Stack Slip is for the shipper, not the carrier.
Stop the 'It Wasn't on the Pallet' Arguments
Undeniable proof of what left your dock — taken by you, before the truck moves. No driver app. No receiver action. Free tier plus Pro from $19.99/mo—billed in Stripe. Details: stackslip.app/pricing.
Start FreeSee /pricing for plans and limits.
Guides
Shipping dispute guides
Answer-first articles on missing-item claims, proving what you shipped, and chain of custody for B2B and LTL freight.
- What to Do When a Customer Claims Items Were Missing From a ShipmentStep-by-step guidance for small business shippers on handling missing-item disputes — from pulling your shipping record to escalating with the carrier.Read guide
- How to Prove What You Shipped to a Customer (Without Expensive Software)Practical methods small businesses can use to document shipments and create verifiable proof of what left their dock — no enterprise software required.Read guide
- Chain of Custody Documentation for Small Business FreightWhat chain of custody means for B2B shippers, why it matters in freight disputes, and how to implement it without a logistics team.Read guide