CSVSimple: Turn messy supplier CSVs into Shopify imports instantly

hey everyone, builder here 👋 this started as a script i wrote after a supplier CSV destroyed my saturday. 800 products, sizes crammed into one cell, prices like "USD 24.99", shopify rejecting the whole file with a vague error. fixed the variants, broke the handles. fixed the handles, broke the prices. three hours later i opened a code editor out of spite. the hardest part wasn't building it — it was stopping the AI from silently dropping rows or inventing column names that don't exist in shopify's spec. a file that looks right but isn't is genuinely worse than one that throws an error. took a while to get that right. everything runs locally in your browser. your supplier data never leaves your machine. i've only stress-tested it on my own files and i know every supplier has their own special kind of chaos. if you've got something ugly sitting in your downloads folder i will personally run it and show you the output — just drop a comment or DM me. also genuinely stuck on pricing. $3.99 per file or $19/month — would love to hear what you'd actually pay for something you'd use maybe 2-3 times a month. thanks for being here on launch day, means a lot.