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dataprep.dev VS Stein

Compare dataprep.dev VS Stein and see what are their differences

dataprep.dev

100% local, zero uploads. Process millions of rows entirely in your browser. The ultimate privacy-first toolkit for CSV, ecommerce, and marketing data.

Rating
0 reviews
Pricing
Free
Alternatives Is it good?
Stein

Use Google Sheets as your no-setup database

Rating
0 reviews
Alternatives Is it good?
Eddyter
Build and integrate a WYSIWYG editor in minutes. Eddyter offers fast setup, developer-friendly APIs, and seamless content editing for modern web apps today. sponsored

Which is more popular?

Based on our record, Stein seems to be more popular. It has been mentioned 1 time since March 2021.

social mentions
0 vs 1
Analytics popularity
100% vs 0%
alternatives listed
11 vs 93

Base details

Website, pricing, platforms and company facts side by side.

dataprep.dev
Stein
Website dataprep.dev steinhq.com
Pricing
Free
—
Platforms
Windows Linux Mac Online +1
—
Company Startup from the United States · 1 - 9 employees · 2026 —
Listed in
Spreadsheets Data Analysis Developer Tools Analytics Productivity Office Suites Databases No Code +5
Google Sheets API Tools APIs No Code +1

About dataprep.dev and Stein

In their own words, as submitted to SaaSHub.

dataprep.dev
Stein

The Browser Data Toolkit for Privacy-Conscious Professionals dataprep.dev is a 100% local, pure-browser data processing engine designed to solve the biggest headaches in data preparation: Excel crashes and privacy risks. Powered by cutting-edge DuckDB-Wasm technology, our toolkit brings...

Read more about dataprep.dev

No description of Stein yet.

Features and specs

What each product offers, as listed by its team.

dataprep.dev 4 features
Stein 5 features
  • Data Privacy
    100% local processing (Zero Uploads). Data never leaves your browser.
  • Core Engine
    Powered by DuckDB-Wasm for database-level speeds without a backend.
  • Key Tools
    SQL on CSV, CSV Merger, GDPR Anonymizer, & JSON Flattening.
  • E-commerce Ready
    Instantly clean and flatten Shopify, Amazon, and Stripe export reports.
  • Ease of Use
    Stein offers a user-friendly interface that allows for easy management and retrieval of data, even for non-developers.
  • Spreadsheet Integration
    The platform allows for seamless integration with Google Sheets, making it convenient to manipulate and use data stored in spreadsheets.
  • API Accessibility
    Stein provides a simple REST API which makes it easy for developers to integrate it with various applications.
  • Cost-Effective
    Stein offers a free tier that allows users to get started at no cost, making it an affordable solution for small projects and startups.
  • Scalability
    The service can handle large amounts of data, meaning it can grow with the needs of the user or business.

Possible disadvantages

  • Limited Advanced Features
    While it's excellent for basic data tasks, Stein lacks some advanced features found in more robust databases.
  • Dependency on Google Sheets
    Heavy dependency on Google Sheets, which might not be suitable for scenarios requiring more complex data management capabilities.
  • Performance
    For very large datasets or high-frequency operations, performance might not be as high as traditional databases.
  • Data Security
    Data security largely depends on Google Sheets' security measures, which may not be sufficient for highly sensitive information.
  • Limited Customization
    Users have less control over the backend and customization options compared to traditional databases.

Videos

Walkthroughs and reviews on video.

dataprep.dev 1 video + Add
Stein 3 videos + Add

Instant SQL on CSV in Browser (DuckDB-Wasm) - Zero Uploads

REVIEW STEIN COOKWARE

More videos

  • - HGUC 1/144 Sinanju Stein Narrative Ver. Review - MECHA GAIKOTSU
  • - 1879 - MG Sinanju Stein [Narrative Ver.] (OOB Review)

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
dataprep.dev
Stein
100% 100%
Analytics
0% 0%
0% 0%
Google Sheets
100% 100%
28% 28%
Spreadsheets
72% 72%
0% 0%
API Tools
100% 100%

Questions & Answers

As answered by people managing dataprep.dev and Stein.

What's the story behind your product?

dataprep.dev's answer

I was trying to clean up a massive, messy Shopify order export. Excel kept freezing, and I absolutely refused to upload sensitive customer emails to random online converters. I got so frustrated that I decided to stop complaining and build a local-first toolkit to solve my own workflow nightmare.

Who are some of the biggest customers of your product?

dataprep.dev's answer

1, Indie hackers and solo founders. 2, Boutique digital marketing agencies. 3, Privacy-conscious data freelancers.

What makes your product unique?

dataprep.dev's answer

Most data tools force you to upload your CSVs to their servers. We don't. We compiled DuckDB into WebAssembly, meaning you get a blazing-fast, database-level engine running entirely inside your local browser tab. It's 100% private and works instantly.

Why should a person choose your product over its competitors?

dataprep.dev's answer

If you try to open a 2GB CSV in Excel, it freezes and crashes. If you use Python Pandas, you have to write code and manage environments. dataprep.dev gives you the power of code (SQL queries, regex, merging 50 files) with a simple drag-and-drop UI, without ever freezing your computer.

How would you describe the primary audience of your product?

dataprep.dev's answer

E-commerce sellers flattening messy Shopify exports, performance marketers cleaning ad reports, and data analysts who need to anonymize PII (GDPR compliance) before feeding datasets to AI models like ChatGPT.

Which are the primary technologies used for building your product?

dataprep.dev's answer

DuckDB-Wasm is the core data engine handling the heavy lifting. The frontend is built with React/Next.js and styled with Tailwind CSS. It's a modern, serverless architecture.

User comments

Share your experience with using dataprep.dev and Stein. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

dataprep.dev 0 mentions
Stein 1 mention

Tracking dataprep.dev since Jul 2026.

Alternatives to dataprep.dev and Stein

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