ImgPrism vs iLoveIMG: Free Image Tools Compared
iLoveIMG has been around for years. I tested it head to head with ImgPrism on compressing, resizing, and converting images.
How different are two free image tool sites, really? iLoveIMG has been around for years. ImgPrism is newer. Both compress, resize, and convert. On paper they look nearly identical. I spent a few weeks using both for real work to find out where the differences actually show up.
The short answer: the feature overlap is real, but the day-to-day experience is not the same. Let me walk you through the details.
Quick verdict
Before the deep dive, here is my honest split.
iLoveIMG is worth keeping around for PDF-to-image conversion and GIF handling. Those two features are genuinely useful and ImgPrism does not cover them. I still keep iLoveIMG bookmarked for those specific tasks.
For compression, resizing, format conversion, cropping, and rotating, ImgPrism is the better daily driver. The tools load faster, the results are as good or better, and nothing leaves your machine.
Now let me show you the numbers behind that recommendation.
Feature lineup
| Feature | iLoveIMG | ImgPrism |
|---|---|---|
| Compress | Yes | Yes |
| Resize | Yes | Yes |
| Convert | Yes | Yes |
| Crop | Yes | Yes |
| Watermark | Yes | Yes |
| Rotate | No | Yes |
| Image to Base64 | No | Yes |
| PDF conversion | Yes | No |
| GIF handling | Yes | No |
| AVIF support | No | Yes |
| Where it runs | Uploaded to their servers | Runs in your browser |
| Ads on page | Yes (free tier) | None |
| Price | Free + Pro ($6/mo) | Free |
iLoveIMG covers five tools. ImgPrism has seven, including a rotate tool and a base64 encoder that iLoveIMG does not offer. The PDF and GIF support on iLoveIMG is the main feature gap the other way. Neither is a full Photoshop replacement, but that is not the point. These are for quick everyday tasks.
Compression test
This is the big one. Compression is probably why you are reading this.
I took a 4.1MB JPEG photo from my phone (Pixel 8, 12MP) and ran it through both tools at their default settings.
iLoveIMG gave me a 1.3MB file. That is about 68% compression. The image looked fine at normal zoom. Zooming to 200% I could see some softening in the details, but nothing you would notice in a blog post or social media upload.
ImgPrism gave me a 920KB file at 80% quality. That is 78% compression. Side by side, the two compressed images looked almost identical. ImgPrism squeezed out a smaller file with no visible quality loss that I could spot.
I ran the same test with a 2.8MB PNG screenshot. iLoveIMG compressed it to 1.1MB. ImgPrism got it down to 890KB. Again, both looked fine, but ImgPrism consistently produced smaller files.
One thing I liked about ImgPrism compress: it shows you a before and after comparison right on the page. iLoveIMG just gives you the download. You have to open both files yourself to compare.
Resizing and format conversion
iLoveIMG lets you pick from a few preset sizes (social media dimensions, common percentages) or enter custom dimensions. It works. Nothing wrong with it.
ImgPrism does the same thing but with a cleaner interface. You type in your target width and height, or lock the aspect ratio and change just one dimension. I resized a 4032x3024 photo to 1200px wide in both tools. iLoveIMG took about 4 seconds. ImgPrism did it instantly.
That speed gap is not magic. iLoveIMG uploads your image to their servers, processes it there, and sends it back. ImgPrism runs everything locally in your browser using JavaScript. No upload round trip. That is also why your images never touch anyone else’s server. iLoveIMG’s policy says files are deleted after a few hours, and I trust that. But the files do leave your device. With ImgPrism, nothing ever leaves your machine.
For format conversion, both handle JPEG, PNG, and WebP. iLoveIMG also converts to and from GIF and PDF. ImgPrism adds AVIF support, which iLoveIMG does not. AVIF is gaining traction because it produces even smaller files than WebP. I converted the same PNG to WebP in both tools. File sizes were within 5KB of each other. No visible difference.
Pricing and ads
iLoveIMG is free for basic use. But there are limits. After a few compressions, I started seeing upsell prompts. The free tier has file size caps and shows display ads. Banners, sidebars, the usual. They are not invasive enough to make the site unusable, but they slow things down and eat screen space. On mobile, the ad situation is tighter. I accidentally tapped an ad twice last week trying to hit the download button.
Their Pro plan costs $6 per month (or $48 per year) and removes those limits.
ImgPrism is free. The full toolkit, zero cost, no premium upgrade button. No file size limits that I have hit. No account needed and no ads. The interface is clean. You land on the tool, drop your file, and get your result. Both sites work on mobile browsers, but ImgPrism on mobile feels like using a native app.
For someone like me who compresses maybe 20 images a week, the free tier of iLoveIMG works fine. But if you are doing batch work or hitting their limits, that $6 a month adds up to $72 a year.
Try it yourself
You do not have to take my word for it. Grab a photo from your phone and run it through both.
Start here: compress an image with ImgPrism. See how it feels. Then try the same file on iLoveIMG. Compare the file sizes, the speed, the overall experience.
If you want to test other tools, check out the resize tool, image converter, or image cropper. All free, all local, no signup needed.