Smithing calculator - Groschen tools

⚖ Groschen Tools

A standalone offline trade & crafting calculator

Overview

Groschen Tools is a single self-contained HTML file — no installation, no server, no internet connection required. Open it in any browser and start tracking your crafting costs, trade profits, and shopping runs.

All data is saved locally in your browser's localStorage and can be exported/imported as a JSON file for backup or use across devices.

Features

⚖ Trade Calculator

• []Track material expenses as individual line items

  []Track sales revenue across multiple traders (e.g. Trader A bought 6, Trader B bought the remaining 4)

  []Live profit / loss display in Groschen and percentage

  ⚒ Recipe Calculator

  • []Build crafting recipes from your material catalog

    []Multiplier to scale all quantities at once (e.g. craft 6 swords)

    []Per-ingredient shopping tracker — enter how many you've already sourced, with a checkbox to mark all at once

    []Live progress bar showing total units sourced vs. needed

    []Shows the cheapest available trader per ingredient, with location and screenshot on hover

    []Preset system — save and reload recipes with optional sale value; presets display expected margin and percentage at a glance

    []When loading a preset, prices are automatically checked against the current catalog and updated if traders have changed

    📦 Material Catalog

    • []Create materials with name and category (e.g. Metals, Leather, Wood)

      []Assign multiple traders per material with individual prices — cheapest is highlighted automatically

      []Trader location description shown directly in the material entry

      []If a trader is deleted, their price entries remain but are clearly marked as

      []Searchable and alphabetically sorted

      🏪 Trader Directory

      • []Save traders with name, location description, and an optional screenshot

        []Screenshots are automatically compressed (max 800px, JPEG 70%) to save storage space

        []Hover over a trader's thumbnail anywhere in the tool to see the full screenshot popup

        []Traders are fully editable after creation — name, location, and image

        []Searchable and alphabetically sorted

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        Data & Storage

        All data is stored in your browser'