Forest Converter is a universal tree-conversion script mod for Farming Simulator 25 on PC and Mac. It replaces safely isolated standing map trees with a configurable mix of verified mature forestry trees.
Unlike a small radius-based replacement tool, Forest Converter can scan:

The entire map

All farmlands owned by the current farm

Only the farmland where the player is currently standing

Every conversion starts with a protected preview. You can review the number of eligible trees, skipped-tree safety information, and normalized species mix before confirming any changes.
The default mix is:

50% Silverrun Pine

50% Silverrun Ponderosa Pine

Lodgepole Pine, Giant Sequoia, the bundled Pine and Spruce mature variants trees, and other compatible species remain optional at 0% until you choose to include them.
Important:
 Back up an existing savegame before converting trees. Conversion changes the savegame-managed tree population and is not intended to be an undo tool.
Main features

Dedicated Settings > Forest Converter tab

Works on fresh starts and existing savegames

All Map Trees, Owned Farmlands, and Current Farmland scopes

Configurable weighted tree-species mix

Weights are normalized automatically; they do not need to total 100

Protected preview and confirmation before conversion

Trees are processed gradually to reduce frame spikes

Mature replacement models are created immediately

Compatible map and enabled tree-pack registrations are detected automatically

Only verified mature forestry targets are offered by the converter

Cut trees, logs, stumps, protected objects, and unsafe tree hierarchies are skipped

Automatic circuit breaker disables conversion safely when an unsupported condition or excessive failure rate is detected

Thirteen bundled mature forestry trees are also individually placeable from the Construction menu

Optional Forest Converter Sapling Add-On with eight pallet sizes and dynamic species selection

Bundled Forest Converter trees

The following 13 credited mature tree models are registered under unique Forest Converter species names:
Spruce Variant 1

Spruce Variant 2

Spruce

Scottish Spruce Variant 1

Scottish Spruce Variant 2

Scottish Spruce Variant 3 — repaired distant LOD

Pine Variant 1

Pine Variant 2

Old Pine

Scotch Pine

Riverside Birch

Cypress

Eucalyptus
They are available as optional conversion targets and under:

Construction > Landscaping > Forest Converter Trees

Construction placement creates a mature, registered tree without converting or changing any nearby trees.
Optional Sapling Add-On

FS25_ForestConverterSaplingAddon.zip is an optional companion download. It adds liftable pallets containing:

6 saplings

24 saplings

40 saplings

60 saplings

120 saplings

175 saplings

240 saplings

300 saplings

The Tree Type selector is built from FS25’s active plantable-tree registry, allowing all 13 Forest Converter registrations—and other compatible active species—to appear without relying on a fixed hard-coded list.
The pallet displays the selected supported species name, and the label color can be changed in the shop. Forest Converter saplings use a compatible young stage and grow into the selected mature model.
Giant Sequoia remains an explicit oversized option. It should be treated as a chainsaw tree because its mature trunk is generally too large for a normal wood harvester.
The Sapling Add-On has its own technical mod identity and does not replace the original Tree Sapling Pack. Both can remain installed, although this will add similar pallet products to the shop.
Requirements

Forest Converter

Farming Simulator 25 for PC or Mac

FS25_ForestConverter.zip

FS25_SilverrunTrees.zip by Jos — required separately and not included

Optional Sapling Add-On

FS25_ForestConverterSaplingAddon.zip

Forest Converter version 1.1.0.0 or newer

Silverrun Trees by Jos

Multiplayer is not currently supported.*
V1.1.0.0

Forest Converter 1.1.0.0

Adds 13 built-in entries for mature trees.

Adds all 13 tree species under Build > Landscaping > Forest Converter Trees.

Makes the built-in entries available for compatible palettes with dynamic saplings.

Uses localized names for the added tree species

Retains conversion modes for protected map areas, owned land, and farmed fields.
Forest Converter Sapling Add-On 2.2.0.0

Creates the tree species selection for each pallet based on the current list of plantable trees.

Adds all 13 Forest Converter tree species.

Allows the selection of pallet labels for the new tree species during gameplay

. Retains the corrected label color configuration.

Includes pallet options for 6, 24, 40, 60, 120, 175, 240, and 300 saplings.