I will build a custom tool to clean, transform and reconcile your financial data

I build a custom command-line tool that takes your data in one format and converts it into exactly the format you need fast, private, and reusable.

You give me:

1. A sample of your input schema (a few anonymized rows of your source data)
2. Your desired output schema (the structure/fields you want it converted into)

I deliver a compiled CLI tool (Go/C++) that performs that exact transformation cleaning, normalizing, and mapping fields as needed. It runs as a standalone executable on your machine (.exe or Linux binary), with no installs or dependencies. Your data never leaves your computer, and processing runs at native speed even on large files.

This is ideal for:

• Converting bank/transaction exports into your accounting system's required format
• Standardizing data from one vendor/source into your internal schema
• One-off large file conversions that spreadsheets choke on

Note: This gig covers one input schema one output schema. If you need multiple sources merged or ongoing schema changes, message me first so I can scope it properly.