Is there a free LPILE alternative?

Yes. PileCalc has a free tier and runs the same FHWA COM624P p-y method as LPILE directly in your browser. Pro is $29/month; LPILE is roughly a $1,200 perpetual Windows license plus annual maintenance.

Does PileCalc give the same results as LPILE?

PileCalc reproduces LPILE and closed-form benchmarks to within a few percent — for example, a free-head pile maximum moment of 792 kN·m against LPILE/RSPile's ~800 kN·m. Every intermediate value is visible so you can check the agreement yourself.

Which p-y models does PileCalc support?

Matlock (1970) soft clay, Welch & Reese (1972) and Reese-Cox-Koop (1975) stiff clay, Reese (1974) and API / O'Neill-Murchison sand, Reese (1997) weak rock, plus elastic and fully user-defined p-y curves — the same library LPILE users expect.

LPILE alternative

Looking for an LPILE alternative? Run the same p-y method, minus the dongle.

Q: Can I run LPILE on a Mac?

Not natively — LPILE is Windows-only and needs a USB dongle or network license. PileCalc runs in any browser on macOS, Windows, Linux or a Chromebook, so it is the simplest way to do LPILE-style p-y analysis on a Mac.

PileCalc is a browser-native LPILE alternative built on the same FHWA COM624P p-y method — validated against LPILE itself, free to try, $29/month for Pro. Works on Mac, Windows, Linux or a Chromebook.

Try it free See the full LPILE comparison

No install, any OS

LPILE is Windows-only. PileCalc runs in any browser on macOS, Windows, Linux or a Chromebook — nothing to download, no dongle, no license server.

Transparent, lower price

≈ $1,200 perpetual + annual maintenance. PileCalc is free to start and $29/month for Pro — priced in the open, with no four-figure quote-by-email license.

Validated and visible

Checked term-by-term against LPILE and RSPile, with the numbers published — and every input, assumption and curve shown inline so you can audit the result.

What you keep when you switch from LPILE

Runs in any browser — no Windows, no dongle, no license server
Same COM624P method, validated to within a few percent of LPILE
Every input explained inline; curves and full response always visible
Also covers axial, groups, drilled shafts and footings — LPILE is lateral-only

Capability

PileCalc

LPILE

AllPile

RSPile

Runs in any browser (Mac / Win / Linux)

No install, no USB dongle

Modern UI

Built-in explanations on every input

Lateral p-y analysis

Axial capacity & settlement

Pile groups

Drilled shafts

Shallow footings

Shareable cloud projects

Validated vs LPILE & RSPile

—

self-stated

vs LPILE

Pricing

Transparent

$1,200

$950

$1,099/yr

The numbers, published

PileCalc's engine is checked term-by-term against the reference codes. A representative sample of the benchmarks — every intermediate value is visible in the app so you can reproduce them yourself.

Benchmark

Quantity

PileCalc

Reference

Agreement

Free-head pile (EI 1.43×10⁶, D 1 m, L 24.4 m)RSPile / LPile

Max moment

792 kN·m

≈ 800 kN·m

within ~1%

Cantilever pile (EI 320, D 0.1 m, L 5.25 m)RSPile / analytical

Head deflection

8.75 mm

≈ 9 mm

within ~3%

Cantilever pile (EI 320, D 0.1 m, L 5.25 m)RSPile / analytical

Max moment

2.34 kN·m

≈ 2.4 kN·m

within ~3%

Circular pile, API sand (D 0.5 m, L 10 m, H 100 kN)RSPile verification manual

Deflection & moment profile

RSPile 2018 problems #1/#2/#8/#15

chart-reading tolerance

within 1–3%

Steel pile, multi-layer slope stabilization (17 m)RSPile / TZPile / LPile

Lateral resistance

582 kN

within ~4%

Read how we validate — and why against two independent codes

LPILE alternative: common questions

The detailed, capability-by-capability LPILE comparison Read the full write-up

Open your LPILE model in PileCalc

Re-run it in the browser in under a minute — free, no install — and compare the numbers side by side.

Launch the app