Type imgsli.com into your browser and you get a blank page. No slider, no gallery, no goodbye note. It’s been that way for months, and if you landed here after typing “imgsli not working” into a search bar, the short answer is: it’s not just you, and it hasn’t come back.
That leaves a hole. imgsli was the default way to show a before and an after in the same frame, the link photographers sent clients and modders pasted on Nexus. imgi does that job now. Two images under a draggable slider, one permanent link, free, no signup. Here’s one running, grab the handle:
Is imgsli coming back?
No idea, and nobody else seems to have one either. There’s been no farewell post and no relaunch date, just a domain that stopped serving the tool. Sites do sometimes come back from this. But it’s been months, and if you’ve got a mod page to update or a client waiting on an edit review, “maybe someday” doesn’t hold the work. Worth checking imgsli.com once in a while if you’re attached to it. Worth having a replacement either way.
Switching takes about a minute
There’s nothing to learn, which is sort of the point. Open imgi.co, drop in your before and your after, and they stack in the same frame with a slider between them. Drag it with a mouse, a finger, or the arrow keys, horizontally or vertically, whichever suits the image. Add labels so nobody has to guess which side is the edit, then hit Publish. You get a short URL that doesn’t expire, plus a one-line iframe embed for your own site.
Two small habits make every comparison land better. Crop both images to the same size before uploading, because a slider over mismatched frames shows the mismatch instead of the difference. And label the sides even when it feels obvious, since the person you send it to has none of your context. An unlabeled before and after just restarts the argument it was supposed to end.
That’s the imgsli muscle memory, transplanted. The differences show up after you publish.
What’s in the box that you might not expect
The embed is the big one. Every published comparison comes with a single line of HTML you can paste into a WordPress Custom HTML block, a Squarespace Code block, a wiki, wherever raw HTML goes, and the slider runs right on the page. The embed guide walks through the per-platform quirks. And when a live slider can’t go somewhere, Reddit, Discord, a Nexus description, the same comparison exports as a GIF, MP4, or WebP instead.
A few more things that tend to surprise people:
- One comparison can hold up to ten images, not two, with a dropdown swapping which pair sits under the slider. Built for upscaler shootouts.
- Served images are your exact uploaded bytes, never re-encoded. When you’re judging grain or compression artifacts, you’re looking at your file, not a softened copy of it.
- Several comparisons can be grouped into an album at one link.
- Offline mode compares two files entirely in your browser, nothing uploaded at all. Client work you can’t host, sorted.
The free tier takes images up to 20 MB each and covers all of the above. Pro, at $3.99 a month or $34.99 a year, removes the watermark from animated exports, adds private uploads and ad-free viewer pages, and bumps animations from two frames to six.
The jobs people bring to it
Photo edits and retouching, where one link beats two attachments named final_v3 and final_v3_REAL. Game mods, vanilla against modded in the exact same scene; there’s a separate guide for mod comparisons with capture tips. AI upscales, original against output at matched size, where a slider makes invented detail impossible to miss. Settling DLSS versus FSR arguments with matched screenshots instead of forum adjectives. And the quieter ones: renovations, repaints, landscaping, a haircut. Anything with a before.
Your old imgsli links are a sore spot
Nothing here fixes them, and pretending otherwise would be rude. Comparisons hosted on imgsli went down with the site. If you still have the original files, remaking a comparison takes about a minute. If the images only ever existed there, they’re most likely gone. Worth a sweep through your mod descriptions, portfolio pages, and old forum posts for embeds that now point at nothing, partly for your visitors and partly because a dead iframe makes the whole page look abandoned.
If JuxtaposeJS is on your shortlist
Knight Lab’s JuxtaposeJS comes up in every imgsli thread, and fair enough: it’s alive, free, and open source. It’s also a different kind of tool. Juxtapose generates slider code for a page you control, and the images themselves are your problem. Their own setup page suggests hosting them on Flickr, Dropbox, or Google Drive if you don’t run a web server. Perfectly workable on a blog you own, and if you like CSS you can restyle the whole thing.
But that image-hosting step is usually the exact chore people came to get rid of. Juxtapose has no hosted page you can drop in a Discord chat, no gallery of your past comparisons, no animated export for script-stripping forums. If you’re a developer wiring a slider into your own product, use the library, it’s good at that. If you want to drag, publish, and paste a link, that’s the whole flow here.
The obvious question: will imgi vanish too?
After watching imgsli go dark, you should ask. Nobody seems to know exactly what happened there, but free image tools share a well-known failure mode: serving costs climb with popularity while income stays at zero, until one hosting invoice ends it. imgi’s answer is unexciting on purpose. The Pro tier and a few ads on free viewer pages pay the serving bills, so the free core isn’t running on borrowed time. A comparison link pasted into a mod description this year is supposed to still resolve in five.
Where to go from here
If you’d rather see the whole field before settling, the roundup of before and after comparison tools covers the lightweight sharers and the heavyweight diff apps in one place. If most of your comparing is AI output, there’s a quick method for checking whether an upscaler added real detail. And the /imgsli page stays current on the switch itself.
Or skip the reading and try the thing. It takes ten seconds and doesn’t ask for an email address.