What makes one route 'smartest'?

The smartest route has the best balance of cost, speed and carbon according to the priorities you set with the sliders. If you weight cost highest, the smartest route trends toward the cheapest; weight carbon highest and it trends toward the greenest.

How is the carbon figure calculated?

We estimate CO₂e from the transport mode each service uses — air, road or sea — multiplied by the lane distance and parcel weight, using representative GLEC-framework emission factors. Air freight emits far more per tonne-kilometer than road, which in turn emits far more than sea.

Is the greenest option always the slowest?

Often, but not always. Sea and road freight emit far less than air but take longer, so economy services usually rank greenest. Over short lanes, though, a road service can be both green and reasonably quick.

Are these live prices and emissions?

When live rate and emissions connections are configured, yes. Otherwise the tool uses Parceler's own estimators, clearly labelled. Treat the figures as a comparison aid and confirm exact numbers with your carrier.

How do I track a parcel with Parceler?

Simply enter your tracking number in the search box at the top of this page, click "Track", then select your carrier from the popup. We'll display the full shipment history and current status instantly.

Why do I need to select a carrier manually?

Many carriers use overlapping tracking number formats, so automatic detection can lead to incorrect results. By letting you choose your carrier, we guarantee accurate tracking every single time. You'll find your carrier name on your shipment confirmation email or receipt.

Is Parceler free to use?

Yes! Basic parcel tracking on the web is completely free. Our iOS app is also free to download and use, with optional premium features available for power users who want advanced notifications and analytics.

Which carriers does Parceler support?

Parceler supports over 3,200 carriers including FedEx, UPS, DHL, USPS, Royal Mail, Bluedart, Delhivery, DTDC, Ekart, India Post, Aramex, and hundreds more from across Asia, Europe, Americas, and beyond.

Is the iOS app available on Android?

Currently, Parceler is available exclusively on iOS (iPhone and iPad). An Android version is in active development — sign up with your email to be notified when it launches.

How often is tracking information updated?

Tracking data is pulled directly from carrier systems in real-time whenever you refresh or check a shipment. For the iOS app, background refresh keeps your package list up-to-date automatically throughout the day.

What is the best app to track all my packages in one place?

Parceler is a free, all-in-one parcel tracking app that lets you follow every package from 3,200+ carriers worldwide in a single place — no need to visit each carrier's website. Just paste any tracking number to see real-time status, the full delivery timeline, and a unified map that stitches together carrier handoffs.

Can I track packages from all carriers in one app?

Yes. Parceler is a universal, multi-carrier tracker that supports over 3,200 couriers including FedEx, UPS, DHL, USPS, Royal Mail, Aramex, India Post, Delhivery, Bluedart and DTDC. Add as many shipments as you like and watch them all from one dashboard instead of juggling separate tracking sites.

Do I need an account or sign-up to track a package?

No. You can track any package on the Parceler website for free without creating an account — just enter your tracking number and pick your carrier. Signing up (or using the iOS app) is optional and only unlocks extras like saved shipments and push notifications.

Can I track international orders from Amazon, AliExpress, Temu or SHEIN?

Yes. Once your order ships, the confirmation email lists a tracking number and carrier — for example AliExpress and Temu often ship via Cainiao, and Amazon via Amazon Logistics or a local courier. Paste that number into Parceler to follow the parcel across borders, through customs, and all the way to your door.

Tools

Smart Route Ranker

Cross-reference live carrier rates and transit times with shipping carbon emissions to rank the smartest way to ship a parcel — balancing cost, speed and CO₂ — with adjustable priorities.

From country

To country

Parcel weight (lb)

Units

Your priorities

Cost34

Speed33

Carbon33

Enter a route and weight to rank shipping options.

Rates and transit times via Shippo; emissions via Emissions.dev (GLEC). Estimates for comparison — confirm exact figures with your carrier.

Every shipment is a trade-off between cost, speed and carbon — and no carrier dashboard ranks all three side by side. This tool cross-references live rates and transit times with the shipping emissions of each service, then ranks your options by the priorities you set. Want the cheapest? The fastest? The greenest? Or a smart balance of all three? Move the sliders and the ranking updates instantly.

The three axes we rank on

Cost

The live (or estimated) rate to ship the parcel on each service tier for your exact lane and weight.

Speed

Estimated transit days based on real geographic distance and the service's handling profile — not a static table.

Carbon

CO₂e from the transport mode each service uses (air, road or sea), using GLEC-style emission factors over the lane distance.

How the smartest route is chosen

Each option is scored 0–1 on cost, speed and carbon (lower is better), then combined into a single composite using your priority weights. The lowest composite is the 'Smartest' route; we also tag the outright Cheapest, Fastest and Greenest so you can see the extremes. Because scoring runs in your browser, the sliders re-rank the same data instantly — no waiting on another lookup.

Frequently asked

What makes one route 'smartest'?: The smartest route has the best balance of cost, speed and carbon according to the priorities you set with the sliders. If you weight cost highest, the smartest route trends toward the cheapest; weight carbon highest and it trends toward the greenest.
How is the carbon figure calculated?: We estimate CO₂e from the transport mode each service uses — air, road or sea — multiplied by the lane distance and parcel weight, using representative GLEC-framework emission factors. Air freight emits far more per tonne-kilometer than road, which in turn emits far more than sea.
Is the greenest option always the slowest?: Often, but not always. Sea and road freight emit far less than air but take longer, so economy services usually rank greenest. Over short lanes, though, a road service can be both green and reasonably quick.
Are these live prices and emissions?: When live rate and emissions connections are configured, yes. Otherwise the tool uses Parceler's own estimators, clearly labelled. Treat the figures as a comparison aid and confirm exact numbers with your carrier.

Smart Route Ranker

The three axes we rank on

How the smartest route is chosen

Frequently asked

Common questions,plain answers.

Common questions,
plain answers.