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PoryMap

Free#28 of 49 in ROM Hacking Tools

PoryMap: A focused desktop editor for maps and tilesets in supported Generation III projects. Ranked #28 of 49 in ROM Hacking Tools by our editors (4.7/10); pricing: Free plan; best for editing Pokémon Generation III project maps.

4.7/10Editor score
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PoryMap4.7 Visit PoryMap

At a glance

  • Editor score
    4.7 / 10
  • Pricing
    Free plan
  • Best for
    Editing Pokémon Generation III project maps
  • Free plan
    Yes
  • Paid from
    None
  • ROM editing
    No
  • Facts checked
    5 Oct 2026

  • Where it wins

    • Edits maps, tilesets, metatile properties, and region-map assets
    • Imports indexed PNG tiles and palettes from supported formats
    • Runs on Windows, macOS, and Linux

  • Where it doesn't

    • Works with supported decompilation projects, not arbitrary ROMs
    • Linux users compile the app from source
    • Focused on map and tileset editing rather than general ROM editing

Our verdict on PoryMap

PoryMap is a desktop editor for maps and related assets in Pokémon Generation III decompilation projects: pokeruby, pokeemerald, and pokefirered. It is aimed at solo creators working within those projects who need to edit maps, tilesets, metatile properties, or region-map elements. Because it edits project assets rather than ROM binaries directly, it is not a fit for someone seeking an editor for arbitrary game ROMs.

Its scope goes beyond placing map elements. PoryMap can edit individual tilesets and metatile properties, import indexed PNG tile images, modify tileset palette files, and import palettes from supported formats. Region-map tools cover backgrounds, layouts, and map entries. It can also import metatile data exported from Advance Map 1.92, which may help when working with that specific interchange path. These capabilities make it a targeted choice for map and tileset work, not a general-purpose tool for every part of a ROM-hacking project.

PoryMap is open source and has a free plan. Downloadable builds are published for Windows and macOS, while Linux users compile from source. Documentation is the listed support channel, so users should be comfortable referring to project documentation and handling some technical setup, particularly on Linux. Choose PoryMap when your work centers on maps and related assets in the supported decompilation projects; choose another tool if you need direct ROM-binary editing or broader ROM-hacking coverage.

Your product? Our editors can test PoryMap in depth and publish a review, labelled as paid · from $99/mo →

PoryMap pricing

Plans Free planFree Free to use — no paid tier required for the core job.
See plans on github.com

PoryMap fact sheet

Free planYes
Paid fromNone
ROM editingNo
Patch formatsNot verified
Tile/sprite editingYes
Hex editorNot verified
Supported platformsWindows, macOS, Linux
Game scopeSpecific game
DeploymentDesktop
PlatformsWindows, macOS, Linux
SupportDocs
Built forSolo (editorial estimate)
PricingFree plan
Websitegithub.com
Facts checked5 Oct 2026

Alternatives to PoryMap

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Featured on iTechGuides

Featured on iTechGuides — PoryMap 4.7/10

PoryMap is listed in our ROM Hacking Tools directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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