Web · iOS · Android · AI
The Modern Packing App
Built for Backpackers
Packing for your backpacking trip shouldn't be as hard as the trail itself. Packstack makes it easy to build gear lists, track base weight, and a whole lot more.
Join 3,000+ backpackers already using Packstack.
Gear Closet
Every gram accounted for
Build a gear closet with detailed specs for every item you own: weight, brand, product, price, and category. Your gear is always at your fingertips when building gear lists.
- ✓ Import from LighterPack or CSV in seconds
- ✓ Auto-fill weights from the product database
- ✓ Create custom categories for organization
- ✓ Track the total value of your kit
Pack List Builder
Build the perfect pack
Ditch the spreadsheets. Drag items from your inventory, organize by category, and fine-tune quantities, all in a clean, purpose-built interface. Create multiple packs per trip for base camp and day hike setups.
- ✓ Drag-and-drop reordering
- ✓ Multiple packs per trip
- ✓ Built-in checklist mode
- ✓ Mark items as worn or consumable
Weight Analysis
Know your base weight
Instantly see how your weight is distributed across categories. Packstack separates base weight, worn weight, and consumables so you always know exactly what your pack weighs on the trail.
- ✓ Base / worn / consumable breakdown
- ✓ Category-level weight visualization
- ✓ Toggle between metric and imperial
Ready to see what your pack really weighs?
Import your gear or start from scratch. You’ll have a complete gear list in minutes.
Start for FreeCalorie Calculator
Know how much fuel you need
Packstack estimates your daily calorie needs based on your body stats, pack weight, trail distance, elevation gain, terrain, pace, and temperature. See a full breakdown with macros, food weight, water needs, and trip totals.
- ✓ Daily calorie estimate from trip + body stats
- ✓ Macro breakdown (carbs, fat, protein)
- ✓ Food weight and water estimates
- ✓ Optional +10% safety margin
Switching from LighterPack?
Bring your entire gear list with you
Export your LighterPack list as a CSV and import it into Packstack in under a minute, with items, categories, and weights included. Then pick up everything LighterPack doesn’t do: gear condition tracking, calorie planning, kits, and a mobile app.
Everything else you need to hit the trail
Beyond the gear list, Packstack helps you manage the full life of your gear and every detail of your trip.
Gear Lifecycle
Track condition from day one. A replacement score based on age, lifespan, and wear tells you when gear is due for an upgrade.
Trip Planning
Capture distance, elevation gain, terrain, pace, and expected temperatures: the details that power your calorie estimates.
Calorie Estimates
Daily calorie, food weight, and water targets from your body stats, pack weight, and trip conditions. No guesswork.
Gear Kits
Bundle items you always carry together, like a first aid kit or cook system, and load them into any list with one click.
Share Your Setup
Generate a link to any trip and share a clean, read-only view of your gear list with full weight breakdowns.
Checklist Mode
Turn any gear list into a checklist and tick items off as they go into the pack. Nothing gets left behind.
Mobile Apps
Take your checklist to the trailhead
Packstack is on iOS and Android, synced with the web app. Build your list on the big screen at home, then check items off from your phone as you pack. Your gear specs are always in your pocket.
Frequently asked questions
Is Packstack free?
Packstack is free to start. Create an account and begin building your gear closet and gear lists, no credit card required — including your first kit. Packstack Pro is a one-time purchase that unlocks unlimited gear lists and kits, multiple packs per trip, calorie and water planning, watermark-free trip summary cards, and editing through connected AI assistants like Claude and ChatGPT.
Can I import my gear list from LighterPack?
Yes. Export your LighterPack list as a CSV and import it into Packstack in seconds. Your items, categories, and weights come along with it.
Is there a mobile app?
Yes. Packstack is available on iOS and Android, and the web app works on any device. Build your list at home, then check items off from your phone as you pack.
How is the calorie estimate calculated?
Packstack combines your body stats (weight, height, age, sex, body type) with your trip details (distance, elevation gain, terrain, pace, temperature, and pack weight) to estimate your daily calorie burn, food weight, and water needs.
What's the difference between base weight, worn weight, and consumables?
Base weight is everything in your pack excluding food, water, and fuel. Worn weight covers items you wear or carry on your body, like shoes and trekking poles. Consumables are things you use up along the way. Packstack tracks all three separately so you know exactly what you're hauling.
Can I connect Packstack to my AI assistant?
Yes. Packstack has an MCP server, the open standard assistants use to connect to apps, so Claude, ChatGPT, Claude Code, Cursor and any other MCP-compatible client can read your real gear closet, trips and packs while you plan — ask for a shakedown and it works from your actual base weight, not a pasted list. Connecting takes one sign-in, no API key. Reading is free on every account; making changes through your assistant (adding gear, building packs, editing trips) is part of Packstack Pro.
Connect an AI assistant →Start planning your next trip
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