Show HN: DonutData – Clean messy datasets with natural language prompts

2•Ukd_1209•9mo ago

I built DonutData to make cleaning and preprocessing datasets easier — without writing any code.

You upload a file (CSV, JSON, XML), type a prompt like:

"Remove extra spaces, drop rows with nulls, lowercase all text"

…and DonutData runs the relevant transformations automatically.

This is the first version — preview/iteration is coming soon. Feedback form pops up after use. I’d love your thoughts!

Works with structured formats (CSV, JSON, YAML, XML) 30+ preprocessing operations built in Free to use — only sign in to download the result

Try it out: https://donutdata.in/ Use our sample dataset: https://drive.google.com/file/d/11NOu1FSm4nyYT8QZjcltmaN0LGu...

Would love to hear feedback of any kind!

Comments

Proofread0592•9mo ago

Ukd_1209•9mo ago

We're in the process of finalizing the full privacy policy and as this is the first version we are still working on it. For now, to clarify: we don’t store or use any of your uploaded data beyond the processing session. Everything runs serverlessly and is wiped immediately after. If you have any specific concerns, feel free to ask or DM — happy to clarify anything! Would really like you to use it and provide feedback

What Is Ruliology?

Jon Stewart – One of My Favorite People – What Now? With Trevor Noah Podcast [video]

P2P crypto exchange development company

Vocal Guide – belt sing without killing yourself

Write for Your Readers Even If They Are Agents

Knowledge-Creating LLMs

Maple Mono: Smooth your coding flow

Sid Meier's System for Real-Time Music Composition and Synthesis

Show HN: Slop News – HN front page now, but it's all slop

Show HN: Empusa – Visual debugger to catch and resume AI agent retry loops

Show HN: Bitcoin wallet on NXP SE050 secure element, Tor-only open source

White House Explores Opening Antitrust Probe on Homebuilders

Show HN: MindDraft – AI task app with smart actions and auto expense tracking

How do you estimate AI app development costs accurately?

Going Through Snowden Documents, Part 5

Show HN: MCP Server for TradeStation

Canada unveils auto industry plan in latest pivot away from US

The essential Reinhold Niebuhr: selected essays and addresses

Rentahuman.ai Turns Humans into On-Demand Labor for AI Agents

StovexGlobal – Compliance Gaps to Note

Show HN: Afelyon – Turns Jira tickets into production-ready PRs (multi-repo)

Trump says America should move on from Epstein – it may not be that easy

Tiny Clippy – A native Office Assistant built in Rust and egui

LegalArgumentException: From Courtrooms to Clojure – Sen [video]

US moves to deport 5-year-old detained in Minnesota

If you lose your passport in Austria, head for McDonald's Golden Arches

Show HN: Mermaid Formatter – CLI and library to auto-format Mermaid diagrams

RFCs vs. READMEs: The Evolution of Protocols

Kanchipuram Saris and Thinking Machines

Chinese chemical supplier causes global baby formula recall