Diff Checker
Beyond Compare
WinMerge
Meld
kdiff3
Text compare!
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prism.js
highlight.js
Pygments
Shiki
Bright
Inkjet (Syntax Highlighting)
Torchlight.dev
starry-night
Diff Checker prism.jsDiff Checker is highly recommended for software developers, writers, editors, teachers, and students who often need to compare documents or code. It is also suitable for any individuals or teams working on collaborative projects where tracking changes in scripts, documents, or spreadsheets is essential.
Based on our record, prism.js should be more popular than Diff Checker. It has been mentiond 22 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.
Another interesting point: I copied both my answer and the suggested answer into diffchecker.com, and it said they were the same. Source: almost 3 years ago
Never knew diffchecker.com was a thing. Thank you so much for making me aware of it <3. Source: about 3 years ago
In what way did you show the file comparison? Did you use a diff like diffchecker.com ? If someone can see for themselves that every bit of data between two files is exactly the same, and still thinks they are different, IDK how you could get past that. x == x is pretty fundamental. Source: over 3 years ago
How do I find the actual difference between two strings that appear equal to the naked eye? I used multiple tools and some show no differences, but some show differences. I got diffs on diffchecker.com, but it just shows me that they are different, but not how they differ. Is there a better tool for this? Source: over 3 years ago
I am wondering if there's something that allows you to easily display differences between two json like on diffchecker.com. Is there a library that allows you to easily do that? Source: almost 4 years ago
It reminded me of the code highlighter[0], and the ORM Prisma[1]. [0] https://prismjs.com/. - Source: Hacker News / 6 months ago
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 / 7 months ago
The site uses Astro (https://astro.build/) and the code blocks are generated using Shiki (https://shiki.style/). As Shiki generates the HTML and CSS at build-time instead of requiring runtime JS like alternatives like Prism (https://prismjs.com/#basic-usage), it's actually quite performant. I think it's unlikely that a couple of hundred lines with some empty spans in is going to cause performance issues โ imo it's... - Source: Hacker News / about 1 year ago
First step it to open src/app/app.config.ts, enable markdown file support, and add a syntax highlighter. You can pick between Prism or Shiki, both are great, but for this example, weโre rolling with Prism. - Source: dev.to / over 1 year ago
โจ Explore Prism.js for more themes and plugins! - Source: dev.to / over 1 year ago
Beyond Compare - Beyond Compare allows you to compare files and folders.
highlight.js - Highlight.js is a syntax highlighter written in JavaScript. It works in the browser as well as on the server.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Pygments - Generic syntax highlighter suitable for use in code hosting, forums, wikis or other applications...
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
Shiki - A beautiful syntax highlighter based on TextMate grammar, accurate and powerful.