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510KiB, 1024x768, Please.jpg

QR code creator

Anonymous Thu 22 Aug 2024 09:58:25 No.1484227 View View Reply Original Report

Quoted By:

Is there a way for me to create a QR code that would take people to a specific website link, for free, with no bullshit involved?

I know very little about QR codes myself.

Anonymous

Anonymous Thu 22 Aug 2024 10:20:07 No.1484230 Report

Quoted By: >>1484231 >>1484232

In duckduckgo, search for “qr code <stuff you want in it>”.

Anonymous

Anonymous Thu 22 Aug 2024 10:38:59 No.1484231 Report

Quoted By: >>1484232

>>1484230
...that actually worked?? Thanks.

Anonymous

Anonymous Thu 22 Aug 2024 10:40:22 No.1484232 Report

Quoted By: >>1484234 >>1484235

>>1484230
>>1484231
Oh followup question, how flexible are QR codes for being resized? Am I hard constrained to the size it's given me?

Anonymous

View Same Google ImgOps iqdb SauceNAO resize.png, 28KiB, 360x600

Anonymous Thu 22 Aug 2024 10:48:53 No.1484234 Report

Quoted By: >>1484237

>>1484232
There's no constraint on size so long as it's big enough to make out the pixels, and they're square.
You can resize them to any multiple you want using nearest neighbor.
That keeps the pixels sharp.
You can do that in Photopea.

One constraint a lot of QR readers do have is that there must be a white margin around the QR code.
So don't crop out the white space around.

Anonymous

Anonymous Thu 22 Aug 2024 10:49:46 No.1484235 Report

Quoted By:

>>1484232
Size doesn't matter (as long as it is big enough for every white and black squares to be read).

Anonymous

Anonymous Thu 22 Aug 2024 10:53:07 No.1484237 Report

Quoted By: >>1484241

>>1484234
>One constraint a lot of QR readers do have is that there must be a white margin around the QR code.
Any rule of thumb for how much is needed? for me right now each black pixel of the QR code is 4x4 pixels so I just got finished giving it a 4 pixel border on all sides. Is this sufficient? It's going to be printed on paper eventually.

Anonymous

Anonymous Thu 22 Aug 2024 11:09:32 No.1484241 Report

Quoted By: >>1484243

>>1484237
The specs say 4 pixels.
The QR code that comes out of duckduckgo has 2 pixels (the QR pixels 4 image pixels wide).
That is enough to satisfy most readers already.
If you want to make it more compliant, you can pad it with two more pixels-worth all around.

Anonymous

Anonymous Thu 22 Aug 2024 11:17:08 No.1484243 Report

Quoted By:

>>1484241
Alright, I'll try and hope it works out. Thanks man.

Anonymous

Anonymous Thu 22 Aug 2024 12:37:42 No.1484251 Report

Quoted By: >>1484253 >>1484267

I use this https://addons.mozilla.org/en-US/firefox/addon/offline-qr-code-generator/ firefox addon
in the preferences you can set size, error correction percentage and color

Anonymous

Anonymous Thu 22 Aug 2024 12:55:56 No.1484253 Report

Quoted By: >>1484263

>>1484251
>error correction percentage
What's that?

Anonymous

Anonymous Thu 22 Aug 2024 13:33:19 No.1484263 Report

Quoted By: >>1484267

>>1484253
basically if you scan it with low quality camera or the image is partially damaged, it should be still readable
https://en.wikipedia.org/wiki/QR_code#Error_correction

Anonymous

Anonymous Thu 22 Aug 2024 13:39:28 No.1484267 Report

Quoted By:

>>1484251
>>1484263
>Doesn't support Pale Moon
Damnit.

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