Purpose-built utilities

Custom Tools

Data utilities I've built — available as-is or customized to your workflow. Need something purpose-built? I can scope and build it.

Available

CRK Dev Merge Tool

Drag-and-drop CSV and XLSX merger for Windows. Combine multiple files instantly — no formulas, no Excel headaches. Clean output every time. Available as-is or customized to your workflow.

WindowsCSVXLSX
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Available

CSV Cleaner

Cleans and normalizes messy CSV files. Trims whitespace, fixes encoding, standardizes phone and email formats, removes blank rows. Available as a Python CLI or packaged as a Windows app.

PythonCLICSV
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Available

CSV Deduplicator

Removes duplicate records from any CSV using fuzzy matching on name and email. Near-duplicates don't slip through. Outputs a clean file and a removed-records log.

PythonCLICSV
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For Hire

Custom Tool Build

Need something that doesn't exist yet? I build purpose-built data utilities, CLI tools, and Windows desktop apps to your exact spec. Fixed price, scoped before work begins.

CustomPythonWindows
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Every tool is scoped and priced before work begins. No surprises. Email craig@crkdev.com to get started.