Software Alternatives, Accelerators & Startups

Row Zero VS dataprep.dev

Compare Row Zero VS dataprep.dev and see what are their differences

Row Zero logo Row Zero

Row Zero is the best spreadsheet for big data. Row Zero has all the spreadsheet features you know and love, but can handle 1+ billion rows, process data faster, connect live to your data warehouse and supports sharing.

dataprep.dev logo 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.
  • Row Zero 31 million rows in a spreadsheet
    31 million rows in a spreadsheet //
    2024-04-25
  • Row Zero Import from data warehouses
    Import from data warehouses //
    2024-04-25
  • Row Zero Pivot tables
    Pivot tables //
    2024-04-25
  • Row Zero point and click graphing
    point and click graphing //
    2024-04-25
  • Row Zero write and execute python
    write and execute python //
    2024-04-25

Row Zero is the best spreadsheet for big data. It enables operations, finance, marketing, and other business teams to securely analyze and work with big data sets in a familiar and flexible spreadsheet. Row Zero can open 1 billion row data sets, connect directly to data warehouses, and support multi-user collaboration to make working with hosted data easy for anyone with spreadsheet skills. Because Row Zero spreadsheets run in the cloud, they eliminate the security risk of CSV exports and locally stored Excel spreadsheets. Row Zero closes the last-mile analysis gap helping business teams take insights from dashboards and turn them into actionable results.

Row Zero Features:

Speed and Performance - Row Zero is a spreadsheet that leverages cloud computing strategies to enable users to import, open, and interact, cell-by-cell, with 1 billion row data sets, like they would in Excel and Google Sheets but on a larger scale.

Connectivity - Row Zeroโ€™s native connections to data warehouses provide efficiency gains for business teams who, instead of building one-off static analyses, like financial models and demand forecasts, can build them once using a connected table and schedule automated refresh. Row Zero also enables saving data from the spreadsheet to the data warehouse.

Collaboration - In order for data analysis to be valuable the work must be shared across teams, business units, and organizations. For this reason, Row Zero workbooks can be shared with viewer and editor permissions and support real-time collaboration for group work and facilitating efficient presentations.

Governance โ€“ Row Zero runs in the cloud, enables sharing permissions (viewer and editor), and enforces data permissions from the data warehouses, eliminating the security risk of downloaded CSVs and emailed .xlsx files.

Security - Row Zero is SOC2 Type II certified and HIPAA compliant. The SOC II report and a BAA are available upon request.

  • dataprep.dev 20+ Local Data Cleaning Tools (Zero Server Uploads)
    20+ Local Data Cleaning Tools (Zero Server Uploads) //
    2026-07-25
  • dataprep.dev Instant SQL on CSV: Local Browser Queries (DuckDB-Wasm)
    Instant SQL on CSV: Local Browser Queries (DuckDB-Wasm) //
    2026-07-25
  • dataprep.dev Shopify Order Exports: Schema Dictionary & Flatten Tool
    Shopify Order Exports: Schema Dictionary & Flatten Tool //
    2026-07-25

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 database-level performance directly into your browser tab. Your data never leaves your device. No servers, no uploads, no GDPR headaches.

๐Ÿš€ Core Capabilities

  • Zero Uploads: Process sensitive PII, financial data, and customer lists with absolute peace of mind.
  • Blazing Fast: Handle million-row CSV and JSON files in seconds.
  • E-commerce & Ads Ready: Instantly flatten messy Shopify order exports, clean Amazon Settlement reports, and normalize ad spend data.
  • SQL on CSV: Run native SQL queries directly against your local files without setting up a backend database.

๐Ÿ› ๏ธ 20+ Niche Tools Included:

  • CSV Merger: Combine up to 50 files instantly without opening them.
  • GDPR Anonymizer: Replace real names/emails with synthetic data before feeding it to ChatGPT.
  • Deep JSON to CSV: Flatten deeply nested JSON arrays into flat tables.
  • Regex Replacer & Format Cleaner.

Stop fighting with bloated spreadsheet software. Clean locally, analyze anywhere.

Row Zero

$ Details
freemium $10.0 / Monthly (Pro)
Platforms
-
Release Date
2024 February
Startup details
Country
United States
State
WA
City
Seattle
Founder(s)
Breck Fresen, Nick End, William Littlefield, Grant Slatton
Employees
10 - 19

dataprep.dev

Pricing URL
-
$ Details
free
Platforms
Windows Linux Mac Online
Release Date
2026 July
Startup details
Country
United States
State
Delaware
Founder(s)
Hank
Employees
1 - 9

Row Zero features and specs

  • Spreadsheet functions
    Use all the same spreadsheet functions available in Excel and Google Sheets.
  • Performance
    Upload billion row data sets and work with them in a spreadsheet.
  • Collaboration
    Share with viewer and editor permissions and use real-time collaboration.
  • Connectivity
    Connect to you cloud data warehouse to import data directly to the spreadsheet.
  • Pivot tables
    Pivot and analyze large data sets.
  • Graphing
    A point and click graphing UI.
  • Python
    Write python in the code window and execute it in the spreadsheet.
  • Security
    Eliminate the security risk of CSV downloads and emailed .xlsx files. Row Zero keeps your sensitive data in the cloud.

dataprep.dev features and specs

  • 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.

Row Zero videos

Row Zero - The world's fastest spreadsheet

More videos:

  • Demo - Open Parquet files with Row Zero
  • Demo - Open a Big CSV with Row Zero
  • Demo - Connect Postgres to Row Zero
  • Demo - Connect Snowflake to Row Zero
  • Demo - Connect Databricks to Row Zero
  • Demo - Export data from a Row Zero spreadsheet to Databricks
  • Demo - Export data from a Row Zero spreadsheet to Snowflake

dataprep.dev videos

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

Category Popularity

0-100% (relative to Row Zero and dataprep.dev)
Spreadsheets
82 82%
18% 18
Data Analysis
76 76%
24% 24
Productivity
76 76%
24% 24
Analytics
100 100%
0% 0

Questions & Answers

As answered by people managing Row Zero and dataprep.dev.

Why should a person choose your product over its competitors?

Row Zero's answer

Row Zero is the world's fastest spreadsheet, designed for big data sets. If a user already knows how to use a spreadsheet and needs to analyze or transform large data sets, Row Zero is the perfect tool. Data teams that serve large businesses can off-load ad-hoc and last mile analytics requests by enabling their business partners to work in Row Zero.

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.

What makes your product unique?

Row Zero's answer

Row Zero's is a last mile analytics tool that enables business teams (marketing, operations, finance, etc...) to connect to cloud data warehouses and work with big data sets in a spreadsheet they already know how to use. BI tools are great for high level metric monitoring but the work initiated as a result of those dashboards needs to happen in a tool where business teams can see and interact with their data.

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.

How would you describe the primary audience of your product?

Row Zero's answer

Business teams that need to work with big data sets but prefer a spreadsheet over writing SQL or rigid BI tools.

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.

What's the story behind your product?

Row Zero's answer

Row Zero was born out of our own frustrations doing data analysis on big data sets. Excel and Google Sheets don't easily connect to cloud data warehouses and have small row limits. We needed to open multi-million row data sets and analyze them quickly. Row Zero is the highly performant tool we wish we'd had.

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.

Which are the primary technologies used for building your product?

Row Zero's answer

  • Rust
  • Python
  • Amazon Web Services

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.

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.

User comments

Share your experience with using Row Zero and dataprep.dev. For example, how are they different and which one is better?
Log in or Post with

Social recommendations and mentions

Based on our record, Row Zero seems to be more popular. It has been mentiond 8 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Row Zero mentions (8)

  • ChatGPT for Excel
    Try https://rowzero.com ? We have written a much faster spreadsheet engine and regularly work with 10M+ row datasets. - Source: Hacker News / 4 months ago
  • I only use Google Sheets
    How large are you talking about? Have you tried https://rowzero.io? - Source: Hacker News / 10 months ago
  • 'I grew up with it': readers on the enduring appeal of Microsoft Excel
    You should check out Row Zero (https://rowzero.io). We launched on HN earlier this year. Our CSV handling is the best on the market. You can import multi GB csvs, we auto infer your format, and land your data in a full-featured spreadsheet that supports filter, sort, ctrl-F, sharing, graphs, the full Excel formula language, native Python, and export to Postgres, Snowflake, and Databricks. - Source: Hacker News / almost 2 years ago
  • Ask HN: What are you working on (August 2024)?
    I've been working on a better spreadsheet for a while now. https://rowzero.io is 1000x faster spreadsheet than Excel/Google Sheets. It looks and feels like those products but can open multi GB data sets, supports Python natively, and can also connect directly to Snowflake/Databricks/Redshift. - Source: Hacker News / almost 2 years ago
  • My Thoughts on Python in Excel
    We built our spreadsheet (https://rowzero.io) from the ground up to integrate natively with Python. Bolting it on like Microsoft did, or as an add in like xlwings, just feels second class. To make it first class, we had to solve three hard problems: 1. Sandboxing and dependencies. Python is extremely unsafe to share, so you need to sandbox execution. There's also the environment/package management problem (does... - Source: Hacker News / about 2 years ago
View more

dataprep.dev mentions (0)

We have not tracked any mentions of dataprep.dev yet. Tracking of dataprep.dev recommendations started around Jul 2026.

What are some alternatives?

When comparing Row Zero and dataprep.dev, you can also consider the following products

Google Sheets - Synchronizing, online-based word processor, part of Google Drive.

Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.

Equals - A next generation spreadsheet with SQL data connections

Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.

LeapRows - Analyze large CSV files instantly in your browser with LeapRows. No upload required. Experience lightning-fast data processing and automation with DuckDB-WASM technology.

Apache OpenOffice Calc - Calc, part of the https://alternativeto.