
Kahoot!
Mentimeter
AhaSlides
Sli.do
Poll Everywhere
Blooket
Conduct Exam
Wooclap lets teachers and trainers engage students and employees alike with real-time polls and quizzes, making classes, training sessions, and presentations more interactive.

Microsoft Office Excel
Google Sheets
DB Browser for SQLite
Modern CSV
LibreOffice
Airtable
Apache OpenOffice Calc
100% local, zero uploads. Process millions of rows entirely in your browser. The ultimate privacy-first toolkit for CSV, ecommerce, and marketing data.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | wooclap.com | dataprep.dev |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Belgium · 50 - 99 employees | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Wooclap was born from a simple conviction: we learn and retain better when we actively participate, not when we passively listen. Whether in a classroom, a corporate training session, or a conference, real engagement is what turns information into understanding. This belief was shared by Jonathan...
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...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of dataprep.dev yet.
Walkthroughs and reviews on video.
How to use Wooclap for Distance Learning?
More videos
Instant SQL on CSV in Browser (DuckDB-Wasm) - Zero Uploads
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Wooclap and dataprep.dev.
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.
dataprep.dev's answer:
1, Indie hackers and solo founders. 2, Boutique digital marketing agencies. 3, Privacy-conscious data freelancers.
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.
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.
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.
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.
Share your experience with using Wooclap and dataprep.dev. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


WooClap has different question types that you can embed within your presentation. Even better, there’s no app to download, nothing to install; participants can use a link to connect to WooClap on their smartphone,...
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