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dataprep.dev
100% local CSV cleaner. No uploads. Powered by DuckDB-Wasm.
Excel crashes? Uploading PII to cloud SaaS? Stop. Dataprep is a suite of 20+ browser-based data tools. Flatten Shopify orders, anonymize GDPR data, and run SQL on million-row CSVs. Zero server uploads. Instantly fast.
Hi Product Hunt! 👋 I'm Hank.
If you’ve ever tried to open a 1GB CSV and watched Excel crash, or hesitated to upload sensitive customer data to a random online format converter, I built this for you.
Dataprep.dev is a pure-browser data toolkit. By leveraging DuckDB-Wasm, it brings database-level processing speed directly into your browser tab.
🔒 Zero Uploads: Your data never touches a server. It is processed entirely locally on your device.
⚡ Blazing Fast: Handle million-row datasets in seconds without freezing your computer.
🛠️ 20+ Niche Tools: Instantly merge 50 CSVs, anonymize GDPR data, flatten messy Shopify/Amazon exports, or run native SQL queries directly on your files.
It's 100% free, with no signup walls and no BS. I built this to solve my own data workflow nightmares, and I hope it saves you hours of frustration too.
I'll be hanging out here all day! Test it with your messiest datasets, let me know your feedback, or ask me anything about the Wasm architecture. Cheers! 🚀
About dataprep.dev on Product Hunt
“100% local CSV cleaner. No uploads. Powered by DuckDB-Wasm.”
dataprep.dev was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #8 on the daily leaderboard. Excel crashes? Uploading PII to cloud SaaS? Stop. Dataprep is a suite of 20+ browser-based data tools. Flatten Shopify orders, anonymize GDPR data, and run SQL on million-row CSVs. Zero server uploads. Instantly fast.
On the analytics side, dataprep.dev competes within Productivity, Developer Tools and E-Commerce — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how dataprep.dev performed against the three products that launched closest to it on the same day.
Who hunted dataprep.dev?
dataprep.dev was hunted by Hank. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of dataprep.dev including community comment highlights and product details, visit the product overview.
Hank