Upload a messy CSV/Excel file and it:

Normalizes headers (snake_case)

Fixes inconsistent data types

Removes duplicates

Strips hidden Unicode junk

Standardizes formatting

The pipeline is deterministic and idempotent. Files are stored ephemerally and auto-purged.

The interesting part: I used Google Gemini heavily as an engineering collaborator — not just for boilerplate, but for designing parts of the cleaning logic and app structure.

Would love feedback on:

Edge cases I might be missing

Performance concerns at scale

Better approaches to deterministic cleaning

Live demo: https://auto-table.com

Write-up: https://dev.to/voxdroid/autotable-my-one-click-spreadsheet-c...