
Adobe Learning Manager
Udemy
Moodle
LMS Collaborator
MindTickle
WorkRamp
Datacamp
Ramp faster, hone skills, and personalize coaching. Click here to see how Seismic Learning (formerly known as Lessonly) streamlines learning and coaching.

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 | seismic.com | dataprep.dev |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from the United States | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Seismic Learning yet.
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
Walkthroughs and reviews on video.
No Seismic Learning videos yet. You could help us improve this page by suggesting one.
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 Seismic Learning 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 Seismic Learning 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.


Lessonly is one of the best Thinkific Alternatives. Lessonly meets all the needs of their respective business better than Thinkific. When comparing the quality of ongoing product support better, you need to select...
You may be in the market for a learning management system or maybe a replacement to an existing system. Next, you may run an Internet search or talk to peers and wonder if Lessonly is a good option for your company....
Lessonly is an LMS designed mainly for sales teams, customer support teams, and human resources staff. It has all the capabilities for providing employee training including content creation. You can create custom...
We have no reviews of dataprep.dev yet. Be the first one to post
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News. 2017-09-28 - Added PortableApp version of 3. 10. 1. Thanks John.
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