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prism.js VS dataprep.dev

Compare prism.js VS dataprep.dev and see what are their differences

prism.js

Prism is a lightweight, extensible syntax highlighter, built with modern web standards in mind.

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
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?
SquadPrime
Free MVP cost calculator: describe your app in 5 clicks and get a realistic 2026 estimate for a freelancer build, a traditional agency and a fixed-price 14-day build by senior professionals, where the client owns the code. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, prism.js seems to be more popular. It has been mentioned 23 times since March 2021.

social mentions
23 vs 0
App Reviews popularity
100% vs 0%
alternatives listed
20 vs 11

Base details

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

prism.js
dataprep.dev
Website prismjs.com dataprep.dev
Pricing
Open source
Free
Platforms —
Windows Linux Mac Online +1
Company — Startup from the United States · 1 - 9 employees · 2026
Listed in
App Reviews Customer Feedback Marketing Tools Documentation +1
Spreadsheets Data Analysis Developer Tools Analytics Productivity Office Suites Databases No Code +5

About prism.js and dataprep.dev

In their own words, as submitted to SaaSHub.

prism.js
dataprep.dev

No description of prism.js 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...

Read more about dataprep.dev

Features and specs

What each product offers, as listed by its team.

prism.js 5 features
dataprep.dev 4 features
  • Lightweight
    Prism.js is designed to be a lightweight library, minimizing performance impact on the website. It is optimized for being small in size, which aids in faster loading times.
  • Easy to Use
    It is very easy to integrate Prism.js into any web project with minimal setup required. The instructions and implementation are straightforward, making it accessible for developers.
  • Theme Customization
    Prism.js supports custom themes, allowing developers to easily match syntax highlighting styles with the design of their website or application.
  • Extensible
    The library is modular with plugins and supports language extensions. This allows developers to add just the components they need, reducing bloat and improving performance.
  • Wide Language Support
    Prism.js supports a broad array of programming languages, making it versatile for projects that require syntax highlighting across multiple coding languages.

Possible disadvantages

  • Basic Functionality
    Prism.js focuses on simple syntax highlighting and doesn't include advanced features like IDE-level code analysis or linting, which some users might expect.
  • Limited Plugin Ecosystem
    While there are several plugins available, the ecosystem isn't as extensive as some other larger projects, which may limit customization for more advanced use cases.
  • Lacks Built-in Line Highlighting
    Some alternative libraries offer built-in advanced line highlighting features, which are not included out of the box in Prism.js, requiring additional customization.
  • No Built-in Live Code Editing
    Prism.js doesn’t support live code editing natively, which may be a limitation for users needing an interactive coding environment, such as in educational tools.
  • Supports Web Only
    Prism.js is optimized specifically for web use, which might be a limitation if you need syntax highlighting for different environments or formats, like desktop applications.
  • 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.

Videos

Walkthroughs and reviews on video.

prism.js 1 video + Add
dataprep.dev 1 video + Add

Prism.js - How to show html css javascript code syntax on your own website

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

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
prism.js
dataprep.dev
100% 100%
App Reviews
0% 0%
0% 0%
Analytics
100% 100%
100% 100%
Customer Feedback
0% 0%
0% 0%
Spreadsheets
100% 100%

Questions & Answers

As answered by people managing prism.js and dataprep.dev.

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 prism.js and dataprep.dev. 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.

prism.js 23 mentions
dataprep.dev 0 mentions
  • I finally rebuilt my portfolio website (and added a terminal theme)
    Blog content: .mdx files parsed with gray-matter and remark, with Prism syntax highlighting. - Source: dev.to / 5 days ago
  • Prism
    It reminded me of the code highlighter[0], and the ORM Prisma[1]. [0] https://prismjs.com/. - Source: Hacker News / 9 months ago
  • 1Password Breaks Syntax Highlighting On The Internet
    Starting sometime in early December of 2025, a change was rolled out to the 1Password browser extension that began injecting prism.js onto every site and targeting every block it encountered. - Source: dev.to / 10 months ago

View more

Tracking dataprep.dev since Jul 2026.

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