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Provides free image upload and hosting integration for forums.

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, PostImage.org seems to be more popular. It has been mentioned 343 times since March 2021.
Website, pricing, platforms and company facts side by side.
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What each product offers, as listed by its team.


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Why this product is good
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PostImage.org Review
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The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
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As answered by people managing PostImage.org 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 PostImage.org and Diffyn. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Moreover, you can add image uploading to your message board, blog, or website with the PostImage plugin. The images uploaded via this tool are saved to PostImages’ servers, saving you storage space, bandwidth, and the...
You can create a large gallery with all your favourite photos. Each one will have a unique link that allows you to share them immediately with others. PostImage lets you choose the size of the final image, as well as...
Postimage is yet another open-source and free-to-use image hosting platform. It is a reliable image hosting site that can host images of size up to 8 MB. Postimage allows you to link uploaded images to message boards,...
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Recommendations tracked on public social media and blogs since March 2021.


Local images won't share directly, upload the images in postimages or imgbb first, use the url in the meta tags. Then click the extension again to create a new sharer link! - Source: dev.to / over 2 years ago
I think sometimes the png downloaded from here may be compressed too. Compare the file sizes. From now on I think I will use postimages.org to supplement my posts. It is quick and easy to use. Maximum 10,000 pixels images make note. Source: almost 3 years ago
You can host the image free (e.g. https://postimages.org/) and drop a link here. I don't understand the role of the ray in the fitting. Or is it that you want to just intersect the ray with the surface after fitting? In that case your... Source: almost 3 years ago
Tracking Diffyn since Jun 2025.
When comparing PostImage.org and Diffyn, you can also consider the following products.

Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
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Photobucket offers image hosting and free photo and video sharing.
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Unlimited space to host images, easy to use image uploader, albums, photo hosting, sharing, dynamic image resizing on web and mobile.
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