Never Lose a Sale Again
Never Lose a Sale Again
Never Lose a Sale Again
Tightly InStock lets shoppers buy even when you’re out of stock, turning stockouts into sales and keeping customers happy.
Tightly InStock lets shoppers buy even when you’re out of stock, turning stockouts into sales and keeping customers happy.
Tightly InStock lets shoppers buy even when you’re out of stock, turning stockouts into sales and keeping customers happy.



Back-Orders make revenue
Back-Orders make revenue
Back-Orders make revenue
Streamline repetitive tasks, connect dynamic processes, and focus on what matters most.
Streamline repetitive tasks, connect dynamic processes, and focus on what matters most.
Turn out-of-stock into sales
Most shoppers will wait if you give them a trustworthy ETA.
Tightly InStock converts “not available” into revenue by letting customers pre-order with clear delivery dates.
Real ETAs, no guesswork: sync delivery dates from your purchase orders straight to your Shopify product pages.
Pre-orders that convert: capture orders (or deposits) while stock is on the way.
Full transparency: set expectations at PDP, cart and checkout so customers know exactly when to expect their item.
Modern brands don’t leave money on the table. Start capturing backorders with Tightly InStock.






Keep selling, even between shipments
When a product runs out, Tightly InStock keeps the buy button on. Publish honest arrival windows pulled from your purchase orders, accept pre-orders or deposits, and keep shoppers in the loop the whole way.
Capture demand before it lands - take orders against units already on the water.
Set clear expectations - auto-post delivery windows on PDP, cart, and checkout; updates roll in as POs change.
Grow order value & loyalty - fewer exits, better bundles, more repeat purchases.
Keep customers informed every step
75% of shoppers say an on-page Estimated Delivery Date makes them more likely to buy. With Tightly InStock, you set clear expectations that build trust and conversions.
Clear, reliable dates
Pull arrival windows straight from incoming POs and transfer ETAs. If timelines shift, your PDP and cart update automatically—no manual edits.
Promises that match inventory
Limit backorders to the exact units on the way, so you capture demand without selling past what you can fulfill.



The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
The event-driven forecasts were a game changer—campaigns no longer outpace supply. Replenishment accuracy jumped, dead stock fell, and even when suppliers slipped, we stayed in stock.
Mark Till
Ecom & Ops Director at Face the Future
We have been doing a lot of research including a lot of trial and error of inventory optimisation platforms and Tightly is one of the most exciting propositions. Highly recommended.
Dan Gibbins
CEO at Red Light Therapy
Tightly cut our stockouts from 5% to 1% in 2 months. Forecasts are spot-on and POs send themselves. We unlocked six-figure revenue and finally stopped living in emails and spreadsheets.
Alex Milliard
Ops Manager at Casetronics
Buy with confidence and eliminate the hassle
Know what to order, and when to order it


Buy with confidence and eliminate the hassle
Know what to order, and when to order it


Buy with confidence and eliminate the hassle
Know what to order, and when to order it


FAQ
FAQ
FAQ
In case you missed anything
In case you missed anything
In case you missed anything
Who is Tightly for?
Do I still need Tightly if I already have an Inventory Management System (IMS)?
How is Tightly different from other providers?
What's the SKU limit in Tightly?
Is Tightly easy to set up?
What are Tightly Credits
Who is Tightly for?
Do I still need Tightly if I already have an Inventory Management System (IMS)?
How is Tightly different from other providers?
What's the SKU limit in Tightly?
Is Tightly easy to set up?
What are Tightly Credits
Who is Tightly for?
Do I still need Tightly if I already have an Inventory Management System (IMS)?
How is Tightly different from other providers?
What's the SKU limit in Tightly?
Is Tightly easy to set up?
What are Tightly Credits
Join the Inventory Revolution
Ready to grow?
From startups to scaling brands, merchants trust Tightly to stay in stock, automate replenishment and provide backordering to grow, without the guesswork
Resource
Company
Tightly Inc,146 W 57th St, New York, NY 10019, United States
Tightly Ltd, 241 Southwark Bridge Rd, London SE1 6FP
Tightly Ltd, Tightly Inc © 2025
Join the Inventory Revolution
Ready to grow?
From startups to scaling brands, merchants trust Tightly to stay in stock, automate replenishment and provide backordering to grow, without the guesswork
Resource
Company
Tightly Inc,146 W 57th St, New York, NY 10019, United States
Tightly Ltd, 241 Southwark Bridge Rd, London SE1 6FP
Tightly Ltd, Tightly Inc © 2025
Join the Inventory Revolution
Ready to grow?
From startups to scaling brands, merchants trust Tightly to stay in stock, automate replenishment and provide backordering to grow, without the guesswork
Company
Tightly Inc,146 W 57th St, New York, NY 10019, United States
Tightly Ltd, 241 Southwark Bridge Rd, London SE1 6FP
Tightly Ltd, Tightly Inc © 2025