The Stack Imgur service is no longer resizing images correctly

This bug is very annoying when trying to create or fix posts with overlarge images. We used to be able to display a reasonably shrunk picture that linked to the full size one.

Here's a temporary workaround until this bug is fixed:

Refer to the allowed HTML FAQ.

Use markup like:

[<img src="https://i.sstatic.net/MJrvX.png" width="320" height="30" alt="wide demo pic">][2]
  [2]: https://i.sstatic.net/MJrvX.png "Click for larger image."

which yields:

.

-- With:

• a useful alt parameter
• Hover text.
• a convenient link to the image, full-sized.

This has been fixed!

Thank you so much for your patience with this. Moving forward, all images uploaded to the Stack Exchange imgur will be sizable using the URL adjustments indicated in the question (see below for examples).

You'll notice I said "moving forward". Any images uploaded during the outage (7 August 2018 until 19 April 2019) will need to be re-uploaded to imgur for the resizing to work correctly as the additional image sizes weren't created and there's no way to fix this.

From the imgur response to our bug report:

There was a problem with a few of the servers that had autolaunched using the wrong IAM profile in AWS, resulting in their not being able to properly write to S3 as expected. Because some of the servers were working correctly, this made the occurrence incredibly random.

The team over at imgur were amazingly helpful in getting this done for us quickly. Within 24 hours of notifying them, they identified and fixed the issue. We really appreciate their effort! You may ask, "why did it take nine months to fix, then?" - to which I'll say, it unfortunately and unintentionally went through something similar to the Vogon bureaucracy to get to imgur. Before finally getting sent to imgur, the task ended up being:

signed in triplicate, sent in, sent back, queried, lost, found, subjected to public inquiry, lost again, and finally buried in soft peat for three months and recycled as firelighters.
_{~Douglas Adams, The Hitchhiker's Guide to the Galaxy}

Thanks for participating in the public inquiry part of that process. This error has reduced the number of images I personally added to posts so I'm particularly glad that it's fixed.

We're sorry for the delay but glad that it's up and running now.

Thanks to the users who caught this here on our various meta sites and to Geoff for knowing who to contact.

Size test:

Full size:

Large size (l):

Medium Size (m):

Tiny Size (t):

Big Square Size (b):

Small Square Size (s):

There's also Huge (h) but it looks just like the full size because the image is big.

Yet another workaround might be adding a query string like ?s=xyz (with xyz = 16, 32, 64, 128, 256 or 512) after the name of the image to change it from gSpBi.png to (eg) gSpBi.png?s=128. I.e I just added the query string ?s=128 right after .png. Attention: sometimes part of the top and bottom are not shown (I think it depends a bit on the actual image you're using).

Some examples of using such query string in an image, for xyz = 16, 32, 64, 128:

 (?s=16)     (?s=32)     (?s=64)     (?s=128)   

Btw, the above also shows that you can even insert some text in between 2 images, though such text seems to have these limitations (at least I have no idea yet how to get around those):

• cannot have text that spans more then a single line.
• the vertical alignment of the text is always at the bottom of the image.
• the spacing between the image and text can only be set using  .

Note: Similar to what is mentioned in another answer, make sure to respect some specific HTML formatting syntax, in order to be able to use the img HTML tag. E.g. to create these 3 variations (sizes) of an image:

Here is the HTML source that created the previous 3 images:

<img src="https://i.sstatic.net/gSpBi.png" width="216" height="180" alt="Babou" title="My Patou">
<img src="https://i.sstatic.net/gSpBi.png" width="270" height="225" alt="Babou" title="My Patou">
<img src="https://i.sstatic.net/gSpBi.png" width="135" height="113" alt="Babou" title="My Patou">

It's always worth trying the m attribute first, as it still sometimes works.

I posted on the photo meta before discovering this post - Imgur image resize not always working - the linked question did resize one image, but even after several attempts with fresh uploads it refuses to resize the other. [s and b work, but not m]

The trouble with using the img tag instead of the m is that the downloaded image size is the same for the end user, whereas the m would significantly reduce the download itself, unless they click through for the full size.

The only real _{^{[& utterly PITA]}} solution I can see right now is to download the full-size image, re-size in the image manipulator of your choice & re-upload it, then you can link [1] and [2] after the fact to each size, as a totally separate upload/file name.

Confirming this is still broken, and sharing my workaround.

Imgur still does the resizing, but very unreliably. I just finished successfully embedding three images with thumbnails in this post. There’s something wrong with their code or their infrastructure, and it’s failing for a high percentage of uploads, but not all of them.

The first two images in that post that I uploaded (the second and third in the post) came back without resized versions being generated, but both worked on a second try. Notice though that they only have t versions — the m versions generated are still uselessly full-sized.

The first image (last successfully uploaded) took dozens of tries. The first time it worked at all produced a useful m size but no true t size. Subsequent uploads produced no resized images. After dozens of tries I got a URL that finally gave a thrumbnail (though no medium version), and that was good enough to match it with the other two images.

A workaround is to just reupload until it works

Open a new blank question and just go to town, uploading until you get a URL that also has the resized version you need. A blank question box is easier to manage than working in the middle of other text and images, and is marginally faster since the JS has to chew on less preview.

This consumes Imgur URLs and storage, but Stack Exchange and Imgur will have to suck that up until they deal with the bugs in their resize process. Some posts need thumbnails or reduced images, and browser-based resizes aren’t always what the post needs.

The Stack Exchange network also allows direct embedding of images, as well as the handy image shortcut. Until this issue is fixed, you can use direct image embedding as a workaround. The following code produces the image below it:

[<img src="https://i.sstatic.net/MJrvX.png" width="320" alt="wide demo pic">][1]

[1]: https://i.sstatic.net/MJrvX.png "Click for larger image."

Notes: Stack Exchange style is to place the link URL at the bottom of the post, after all the remaining paragraph text (see the markdown source of this post as an example). Also, you will get better results across both browsers and mobile devices if you don't include the optional height attribute (see below).

From What HTML tags are allowed on Stack Exchange sites?:

img Attributes

The following attributes are allowed on the <img> tag, but note that the mobile theme enforces a maximum width of 90%, so specifying a height might not scale the image proportionally on the mobile sites.

The attribute order is important! Using a different order (e.g., height before width) will strip the tag!

src=""
width="" (up to 999; do not include the 'px' extension)
height="" (up to 999; do not include the 'px' extension; see note above)
alt=""
title=""