All-in-1 Converter

A Habbo asset workstation that bundles every step of a hotel pipeline behind a single binary: download Habbo's official CDN assets, import custom packs, merge furnidata / clothesdata / productdata, convert SWF → Nitro, generate the SQL inserts for items_base + catalog_items, and fix the database in place.

It ships with four interchangeable UI shells (same workflows behind each) plus a self-contained binary for Windows and Linux.

The same menus and tools sit behind each shell, so anything you learn in one carries over.

• Professional — the recommended native Avalonia MVVM dashboard. Provides module navigation, operation cards, live status and logs, native prompt input, database safety confirmations, and the operating-system theme.

• TUI — mouse-driven mainframe terminal (Terminal.Gui). IBM 3270 / CICS look, mouse + keyboard, F-keys, captured output in a scrollable log pane.

• CLI — same mainframe theme rendered with plain Console.WriteLine. Keyboard only. Useful over SSH, piped, or in restricted terminals.

• GUI — native desktop window (Avalonia). Two themes:

  • Mainframe — cyan header bar, phosphor green body, red BACK/EXIT, classic bank-terminal feel.
  • Matrix — pure phosphor green on black, with a digital-rain background of digits cascading behind the menus.

When the Windows binary is double-clicked from a file manager, a native selector offers all four interfaces. The Linux .desktop entry opens its terminal selector so TUI and CLI remain usable. A terminal launch offers the same four choices. The existing shells retain the s menu entry for switching mode without restarting the process.

Habbo Downloader            # four-interface selector
Habbo Downloader --professional  # Professional MVVM dashboard
Habbo Downloader --tui      # mouse mainframe TUI
Habbo Downloader --cli      # keyboard-only mainframe CLI
Habbo Downloader --gui      # desktop window (prompts theme)
Habbo Downloader --help     # flags + commands
Habbo Downloader --version  # fetched current Habbo client version

Every menu has an auto-injected ? entry that documents what each item does and what input it expects — read it from inside the tool, no need to keep notes.

1. Habbo Original Downloads — pull every official asset from the Habbo CDN: badges, clothes (figuredata + figuremap), effects, furnidata, furniture SWF, icons, MP3, productdata, quest images, reception art, texts, variables. all runs the full bootstrap.
2. Nitro Custom Downloads — multi-source import of custom furniture / clothes packs.
3. Hotel Tools — Merge Furnidata / Productdata / Clothesdata using strict single JSON files, Generate SQL for items_base + catalog_items, Decompile / Compile .nitro bundles, Convert Nitro PNG → WebP Lossless, Decompile .swf assets (images, XMLs, symbols, ActionScript .as, audio), and SWF → Nitro for Furniture / Clothes / Pets / Effects.
4. Database Tools — show DB version, optimize tables, fix offer_id, fix sit/lay/walk in items_base, fix sprite_id / item_id from JSON.

Every Merge tool and the SQL Generator accepts one strict .json file per dataset. Directory manifests, split tiers, comments, trailing commas and alternative JSON extensions are rejected.

1. Drop .nitro (or .swf) files into Generate/Furniture/ (recursive).
2. Drop FurnitureData.json into Generate/Furnidata/.
3. Run Hotel Tools → Generate SQL.
4. The tool reads width / length / height / interaction count straight from each .nitro and asks for:
   • Starting ID for items_base and catalog_items (e.g. select * from items_base order by id desc limit 1).
   • Catalog_Page ID where you want the items.
5. Output goes to Generate/Output_SQL/ with a timestamp, one INSERT per item.

These directories are created next to the binary on first run (do not commit them):

Habbo_Default/          downloaded official Habbo assets
Merge/                  Original_/Import_/Merged_ for Furnidata, Productdata, Clothes
Generate/               Furnidata/, Furniture/, Output_SQL/
NitroCompiler/          compile/, compiled/, extract/, extracted/, convert_webp/, converted_webp/
SWFCompiler/            import/, decompile/, decompiled/, plus output directories per asset class
Database/Variables/     drop FurnitureData.json here for the DB fix tools
custom_downloads/       multi-source custom downloader output

cd SourceCode
dotnet build "Habbo Downloader.csproj"          # debug build
dotnet run -- --professional                    # run the Professional UI

Prerequisites: .NET SDK 11 Preview 6 + Java (for FFDec, used by every SWF → Nitro path) + Node.js (for some helpers).

./publish-win.bat        # → publish/win-x64/Habbo Downloader.exe (~70 MB)
./publish-linux.sh       # → publish/linux-x64/Habbo Downloader  (~70 MB) + .desktop entry

Both scripts produce a self-contained single-file binary (no .NET runtime required on the target machine) with the FFDec tooling next to it. The Linux script also drops an all-in-1-converter.desktop so file managers can double-click straight into the GUI.

• .github/workflows/build.yml — on push / PR / manual dispatch, builds both Windows and Linux targets and uploads them as 30-day artifacts.
• .github/workflows/release.yml — on tag v* (or manual dispatch with a tag input), builds both targets, zips / tar.gzs them, and publishes a GitHub Release with the binaries attached.

git tag v2.0.0 && git push origin v2.0.0   # cuts a Release with both binaries

Drop-in custom effects live in Addons/Custom Effects/ — read the README there for the file naming convention. The Among Us pack and the Leet pack are included as references.

• Life — .NET 11 upgrade, strict JSON-only migration, removal of the JSON5 split layout, and the Professional Avalonia MVVM dashboard.
• medievalshell — .NET 10 modernization, cross-platform refactor, ImageSharp migration, the earlier JSON5 split-mode layer, three UI shells (CLI / TUI / GUI), Mainframe + Matrix themes, and GitHub Actions pipeline.
• duckietm — original all-in-1 downloader, SWF → Nitro pipeline, SQL generator, database tools, upstream maintainer.
• Nitro Team — pets converter base (discord.gg/yCXcMqrT).
• AtlasOmega — "Among Us" effects (enable 880-903).
• Leet — enables 500-688.
• The whole Habbo retro community.

Discord: https://discord.gg/txfNucJv

Everything here is free — don't get scammed.