Only 3 left!
Shopify theme extension
Low stock badges that drive urgency
Stock Flash shows shoppers exactly how many items are left — right on your product page. Install the block, set your threshold, and watch browsers turn into buyers.
- 2 minAverage setup time
- 0 codeTheme block install
- LiveVariant-aware updates
yourstore.com/products/…
Only 3 left!
- Online Store 2.0
- Theme app block
- No code required
- Variant-aware
- Fully customizable
- Lightweight scripts
Storefront preview
Every style, your brand
Pick a badge shape, set your colors, add pulse or glow — shoppers see real inventory counts the moment they land on a product.
Only 5 left!
Rounded
Selling fast
Outline
Almost gone
Minimal
8 built-in color presets
Start with a preset or enter custom hex values — background, text, and border colors are all yours.
- Only 3 left!RedClassic urgency
- Only 3 left!OrangeWarm alert
- Only 3 left!AmberSoft warning
- Only 3 left!GreenEco / natural
- Only 3 left!TealFresh tone
- Only 3 left!BlueTrust & calm
- Only 3 left!PurplePremium feel
- Only 3 left!PinkBold & playful
Use cases
Built for every kind of store
Whether you run flash sales or slow-moving SKUs, Stock Flash adapts to how you sell — without changing your theme code.
- High urgency
Limited drops & flash sales
When inventory is intentionally scarce, show exact counts so shoppers know they need to act now — not later.
- Multi-variant
Variant-heavy catalogs
Size or color running low? The badge updates per variant so Medium / 3 left and Large / 12 left never get mixed up.
- Inventory turnover
Seasonal & clearance stock
Move last units before they sit on shelves. Set a threshold and let the badge nudge buyers on every product page.
- Brand-safe
Premium & handmade goods
Small-batch products deserve subtle urgency. Use minimal or outline styles that match a refined brand aesthetic.
Motion
Animations that catch attention
Pick pulse, bounce, shake, or glow — or keep it static. Every animation respects reduced-motion preferences on the storefront.
- Only 3 left!
Pulse
Gentle scale rhythm that draws the eye without shouting.
- Only 3 left!
Bounce
Playful vertical motion — great for casual or youth brands.
- Only 3 left!
Shake
Subtle wiggle for high-urgency moments like last few units.
- Only 3 left!
Glow
Soft shadow pulse that feels premium on dark product photos.
App dashboard
Full control from one settings page
Four guided sections walk you through setup, inventory rules, messaging, and appearance — with a live preview as you edit.
Section 1
Setup & visibility
Connect Stock Flash to your theme and control whether badges appear on the storefront.
App statusEnabled
Theme blockAdd block →
Section 2
Inventory rules
Define when the badge shows based on stock level and variant availability.
Show when stock ≤5 units
Out of stockShow badge
Section 3
Badge messaging
Write the urgency copy shoppers see next to your product price.
Only {count} left!
Exact count or generic text like "Selling fast"
Section 4
Look & feel
Shape, colors, layout, and optional motion for the badge on your storefront.
AnimationPulse
Features
Built for conversion, not clutter
Stock Flash gives merchants everything they need to create urgency without bloated marketing apps or complicated setup.
- 📦
Smart stock threshold
Show badges only when inventory drops below your chosen level — real scarcity, not noise.
- 🔄
Variant-aware
Updates instantly when shoppers switch size, color, or style. Each variant gets the right message.
- 💬
Exact or generic text
Display "Only 3 left!" or generic urgency like "Selling fast" — you control the tone.
- 🏷️
Badge styles
Pill, rounded, square, outline, or minimal — shape the urgency label to match your theme.
- 🎨
Custom colors & animations
Match your brand with color themes, pulse, bounce, shake, or glow animations.
- 🧩
Theme app extension
Add the block from the theme editor. No Liquid hacking, no developer required.
Why Stock Flash
Stop leaving urgency on the table
Most stores show static product pages. Stock Flash turns live inventory into a conversion lever — automatically.
Without a low stock badge
- Shoppers don't know stock is low until checkout fails
- Manual "Only X left" text goes stale as inventory changes
- Custom Liquid edits break when you update your theme
- No variant-level urgency — one message for every option
With Stock Flash
- Real-time inventory counts on every product page
- Badge appears only below your chosen threshold
- Theme block install — no developer or code edits
- Updates instantly when shoppers switch variants
How it works
Live in three steps
From install to storefront badges — most merchants are done in under five minutes.
- 1
Install Stock Flash
Add the app to your Shopify store and open the dashboard from Apps in your admin.
- 2
Add the theme block
In the theme editor, open your product template and add the Low stock badge block.
- 3
Customize & go live
Set your threshold, badge text, colors, and animations in Settings — then save.
Merchant feedback
What store owners are saying
“We added the block in two minutes. Shoppers finally see when a size is almost gone — returns from 'size unavailable' dropped noticeably.”
“I tried editing Liquid before and it broke on every theme update. Stock Flash just works as a block, and the variant switching is seamless.”
“The pulse animation on our flash sale badges gets attention without looking spammy. Custom colors matched our brand in one click.”
FAQ
Common questions
Quick answers before you install. Tap a question to expand.
Stock Flash uses a Shopify theme app extension. Add the Low stock badge block from the theme editor — no Liquid edits required.
Yes, on any Online Store 2.0 theme that supports app blocks on the product template — including modern free and paid themes.
Yes. Set exact count templates, generic urgency copy, badge shape, colors, layout, and optional animations from the app settings page.
Yes. The badge reads live inventory per variant and updates instantly when size, color, or style changes.
You choose in settings: hide the badge, show custom out-of-stock text, or keep low-stock messaging for available variants.
Most merchants install the app, add the theme block, and configure settings in under five minutes.
Start converting low stock into sales
Install Stock Flash on your Shopify store and add urgency badges to every product page — free to get started.