Listwipe — Client-side CSV/Excel List Cleaner - Sell Project
Listed July 5, 2026
About Listwipe — Client-side CSV/Excel List Cleaner
Drop a messy contact list, get a clean one back. Runs entirely in the browser.
Listwipe is a lightweight web tool that cleans messy CSV/Excel files — the kind every freelancer, agency, or small business ends up with (duplicate leads, inconsistent name casing, mismatched phone formats, blank rows). What it does: Removes exact duplicate rows Flags near-duplicates (same email/phone, different name spelling) — never auto-deletes, just marks for review Normalizes emails, phone numbers, and names to a consistent format Drops fully blank rows Exports to clean CSV or Excel Why it's easy to take over: Single HTML file, vanilla JS — no backend, no database, no auth, nothing to host beyond static files Two free CDN libraries (PapaParse, SheetJS), zero paid dependencies Fully client-side, so there are no server costs, ever Includes full source code, the live demo, a short walkthrough of the code, and setup support for 7 days after purchase.
Next step: <p>Could be wrapped as a browser extension for one-click use on any page, or bundled into a larger lead-management/CRM toolkit. Also works well as a lead magnet — offer it free to attract signups for a bigger product, or add a simple paywall and resell as a micro-SaaS.</p>
For sale
Asking price: $99 USD
What's included
Source code, All related design work
Includes the live deployed version at listwipe.netlify.app. Happy to answer setup/technical questions for the first week after purchase.
Reason for selling
I am no longer interested in working on this project and hope someone else finds it more interesting than I do.
Project metrics
Average Monthly Visitors: Pre-launch
Average Monthly Revenue: Pre-revenue
Average Monthly Downloads: Pre-launch / New project
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