The official home of the world’s most extensive mainframe modernization suite

Palm Key mark

Palm Key

Understand everything. Change anything.

The definitive pre-processing engine for legacy systems. Dependencies, JCL, data flow, and CRUD — every hidden connection, mapped before a single line changes.

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The definitive pre-processing engine

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You can't safely change what you can't see. Palm Key reveals every connection in your codebase — before anything is touched.

The unlock

Forty years, locked in a box.
Key opens it into a blueprint.

See every
connection.

Programs, copybooks, JCL, data — the dependency web no one person still holds in their head, drawn in full and navigable.

Code becomes
knowledge.

The business logic inside your software, unlocked and structured into something a team can actually reason about.

Modernize
with certainty.

A dead-code report that cuts modernization scope by 33–40% — before the work even starts.

More inside

A complete picture, without the noise.

Clarity from the startInstantly structure your entire codebase into something a team can navigate.
Understand your dataBring meaning to complex data structures and the flows that touch them.
Track every changeKnow exactly what changes between versions — and what stays the same.
Everything in one viewA single, complete picture of your system, free of the noise.

One waveform. Four frequencies.

Key is where every engagement begins — the map that Ark and Ray are built on.

Palm 360Palm KeyPalm ArkPalm Ray
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See every connection before you change a line.

Map your estate