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CrestLite
Free to start — no waitlist

The living gear list for ultralight hikers.

One place your weight math, your trip prep, and your pack history all agree — instead of a spreadsheet you have to keep honest yourself.

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Wind River High Route Aug 14 – 22
Base weight
7 lb 13 oz
Total
15 lb 13 oz
Worn
1 lb 10 oz
Consumable
6 lb 6 oz

Why not a spreadsheet

Three things a spreadsheet can't do

Numbers you can trust

One weight calculator powers every list, chart, and share page, so your totals never drift when you mix grams, ounces, and pounds.

Prep that starts smart, not blank

The trip builder pulls a real forecast to suggest a starting list per trip. Paste a retailer link and CrestLite captures weight, price, and image for you.

Built for how you actually hike

Share a list and let a partner comment before the trip. Gear-swap history shows what changed and why. The offline checklist works at the trailhead with no signal.

Gear Library

A library that knows every gram

Catalog each piece once — weight to the milligram, price, photos, links, and notes — then reuse it across every library and trip. Fourteen color-coded categories keep a 200-item closet scannable.

  • One-click LighterPack import brings your whole history over
  • Tags, worn and consumable flags, quantity, condition notes
  • Capture gear straight from a product URL
  • EE Revelation 20° quilt 595 g · $315
  • NeoAir XLite NXT 368 g · $210
  • HMG Southwest 40 794 g · $379
  • Zpacks Duplex DCF 539 g · $699
  • Sawyer Squeeze 85 g · $41
  • Nitecore NU25 UL 28 g · $37

Trip Builder

Trips that start smart, not blank

Name the trailhead and dates, and CrestLite pulls a real forecast to suggest a starting list from your own gear. Apply a saved kit, accept or reject suggested swaps, and watch the base weight respond live.

  • Kits: reusable gear bundles applied in one tap
  • Swap proposals ranked by grams saved
  • Consumables planned per day — food and fuel burn down over the itinerary
Wind River Range · Aug 14–22 · lows 34°F
+ 20° quilt + Alpha 90 hoodie + 8 days food + bear canister

Swap suggestion — EE Torrid for Nano Puff −106 g

Weight Analytics

See the weight before you feel it

Every trip renders its own charts: the Big Three at a glance, category distribution, base versus worn versus consumable, and a pack-weight timeline that shows your load lightening as food and fuel burn down.

  • Grams, ounces, pounds, or kilos — your call, everywhere
  • Cost tracking in your currency, to the cent
  • Compare trips over seasons — your pack history is data
  • Big Three 2,296 g
  • Sleep system 1,023 g
  • Water + cook 367 g
  • Clothes carried 558 g

Share & Hike

Share it. Then actually hike it.

Every trip gets a clean public page at a short link — no account needed to view, comment, or download a formatted PDF. On trail, the checklist works fully offline: tick gear into the pack at 5 a.m. with no signal.

  • Partner comments on shared lists
  • CSV and print-ready PDF export from any list
  • Your prices stay private on public pages
crestlite.com/t/x9k2f Copy
  • Shelter — Zpacks Duplex
  • Quilt — Revelation 20°
  • Sawyer Squeeze + CNOC
  • NU25 headlamp

And the rest

LighterPack import

Paste a link, keep your history. Categories map automatically.

PDF & CSV export

A formatted, branded PDF or raw CSV from any list or library.

Kits

Bundle your sleep system once, apply it to every trip after.

Gear swaps

Side-by-side alternatives ranked by weight saved.

Consumables timeline

Food and fuel modeled per day — see day-4 pack weight.

Units & currencies

Metric or imperial, any currency, switched globally.

Scoped API tokens

Read-only or full-access tokens you control and revoke.

AI-assistant ready

An MCP server lets Claude and friends manage your gear.

The CrestLite trip builder: forecast-aware suggestions, kits, and swap proposals with grams saved

For builders

Your gear, on the record — and on the API

Everything in the app is on a versioned public API with OpenAPI docs. Wire up a dashboard, a shortcut, or an AI assistant that packs with you.

Read the API docs 
# every list, one GET away
GET /api/v1/trips/9f2c…

{ "name": "Wind River High Route",
  "summary": { "base": 3556000,
               "categories": [ … ] } }

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Free to start. No credit card, no waitlist — just your gear and honest numbers.

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