
Typora
StackEdit
Markdown by DaringFireball
MarkdownPad
Dillinger
iA Writer
Rentry.co
MacDown is an open source Markdown editor for OS X, released under the MIT License.

The modern platform for creating, sharing, and collaborating on AI prompts. Advanced version control and real-time testing.

Which is more popular?
Based on our record, MacDown seems to be more popular. It has been mentioned 9 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | macdown.uranusjr.com | diffyn.com |
| Pricing | ||
| Platforms | — | |
| Listed in |
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
MacDown is recommended for writers, bloggers, and developers who frequently work with Markdown and are using macOS. It is ideal for those who appreciate open-source software and want a tool that combines functionality with simplicity.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
BARRAS DE CORTE DA MACDOWN | APRESENTANDO MODs | FS19
The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing MacDown and Diffyn.
Diffyn's answer:
Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
Diffyn's answer:
React, Next.js, POSTGRESQL
Diffyn's answer:
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
Diffyn's answer:
I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.
Share your experience with using MacDown and Diffyn. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


> And after searching for a Mac one I finally bought Marked. I like MacDown [1]. Someone recently forked it to MacDown 3000 [2]. [1] https://macdown.uranusjr.com [2] https://macdown.app. - Source: Hacker News / 9 months ago
Thank you for crafting and sharing this. Have been looking for a modern MacDown[0] replacement, and this fit the bill nicely. Especially appreciate the reasonable, one-time cost and support for local storage. The "Key Features" section... - Source: Hacker News / almost 2 years ago
I write a LOT of documentation in Markdown for $DAYJOB. I normally use Marked2 (not free, but I paid for my license 7-8 years ago) or MacDown (free) to preview them, and to export them to PDF. Both of these programs are specific to... Source: almost 3 years ago
Tracking Diffyn since Jun 2025.
When comparing MacDown and Diffyn, you can also consider the following products.


Full-featured, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.
Compare StackEdit to MacDown or Diffyn:

Text-to-HTML conversion tool/syntax for web writers, by John Gruber
Compare Markdown by DaringFireball to MacDown or Diffyn:

MarkdownPad is a full-featured Markdown editor for Windows. Features:
Compare MarkdownPad to MacDown or Diffyn:

joemccann has 95 repositories available. Follow their code on GitHub.
Compare Dillinger to MacDown or Diffyn:
