Regex Blaster
118 points by mdp 3 days ago | 48 comments

baud9600 15 minutes ago
Does not render correctly on iOS (mobile Safari)? It’s a fixed Desktop view and you can’t pinch to zoom as needed. It takes effort to prevent mobile users like this! Do others get this experience?
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tyleo 12 minutes ago
I have this exact problem. Looks vibe coded with little testing :/
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ks2048 7 hours ago
Every vibe coded site is too dark and the text is too small.
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progbits 7 hours ago
They all have this rounded box design as well. I wonder where that came from, I don't think it was a predominant style before.
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mrkramer 6 hours ago
I vibe code web apps with Google's Gemini and I think it actually mimics Google's UI and UX because I see similarities between my vibe coded web apps and Google's web apps.
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progbits 6 hours ago
But that's a different style from the these colorful border rounded boxes that I think Claude in particular loves to produce.
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mdp 7 hours ago
This is fair, although I ask for it to be dark themed to match what I think was the style of typing game I remember growing up with (it's been a while). Bumped up the font though.
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btilly 5 hours ago
My top complaint is that if I've successfully used a pattern, I want my text removed. I keep forgetting to backspace a bunch, then get frustrated that my pattern isn't working.

Other than that, great game!

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xnorswap 5 hours ago
Next time please ask it to respect system dark/light mode preference, it's trivial to do, especially for an LLM which can spin up light/dark alternatives easily.
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NooneAtAll3 5 hours ago
no

considering free windows being light theme only, it should be a button, not a "system default"

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xnorswap 4 hours ago
There should be a button too, but it's simple to add a line so that it also defaults to any provided preference.
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zamadatix 2 hours ago
By "free windows" do you just mean an unactivated copy of Windows? That doesn't prevent the user from configuring their preference in the browser itself.
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gdcbe 2 hours ago
… is that even legal to do for microsoft? Are there no requirements to adhere to certain standards? Would have thought that is part of it.
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CamperBob2 4 hours ago
That's fine, too. Either way, give the user the choice.
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mchaver 4 hours ago
I could envision the style even before clicking on the site.
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christoph-heiss 6 hours ago
And all the text is grey-on-grey and basically unreadable. Not to even mention accessibility.
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PurpleRamen 5 hours ago
Maybe because it 1337 hackerman-style, or something.
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lofaszvanitt 3 hours ago
And not playtested at all :D
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flykespice 5 hours ago
Every vibecoded site have this same dark look with shining hue-gradient borders, can't wait for the future the entire web be filled with this generic look
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darkstar999 6 hours ago
What evidence do you have that this is vibe coded?
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flexagoon 5 hours ago
Because it looks exactly the same and feels as janky as 99% of vibecoded web apps
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ks2048 56 minutes ago
Just based on vibes.
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HanClinto 8 hours ago
Nice game!

We made a similar game several years ago for the Pyweek game competition, but there wasn't the fun "letter invaders" style that this one has.

https://pyweek.org/e/RegExExpress/

I really like your implementation!

Might be good to limit some of the special operators to give more focus -- otherwise the early levels are a bit too solvable with ".*"

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pimlottc 55 minutes ago
The colors are difficult for colorblind people. Orange/green is difficult already, and then green turns into red depending on the state? Ugh. Looks fun but unplayable for me.
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1-more 5 hours ago
I don't understand the first "combat" level. There's no real defining pattern separating the good from bad hex strings, so it's just a typing speed contest to type all the enemy patterns, right? What am I missing?
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Andoryuuta 5 hours ago
As far as I can tell, the first combat level enemies all start with "ALERT-" and have exactly 3 digits.
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1-more 5 hours ago
sorry, second combat level. It's all 6 digit hex color strings, some good some bad.
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Andoryuuta 4 hours ago
Ah, I see. Yeah, that one definitely took me multiple attempts to see what it wanted.

I believe that the "enemies":

1. Must start with "#"

2. Must be exactly 6 hex digits

3. Must be lowercase

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1-more 4 hours ago
Ohhhhh I swore there were friendlies with lowercase too! Thank you!!
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schiem 3 hours ago
There are, just not lowercase characters that are valid hex.
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freedomben 7 hours ago
Wow really cool! Genuinely fun, and educational at the same time.

One usability request: after firing a regex, could the text box be cleared? It's not hard to hit Ctrl+A and start typing again, but it does add a bit of friction. (I can send a PR)

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lasgawe 3 hours ago
Haha, this is nice. I'm bad at regex most of the time. Playing this felt like when I first switched from Visual Studio to Vim. it’s a bit of a learning curve. It’s an interactive game btw
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joshribakoff 5 hours ago
I cant even read this because most of the text is outside my phones viewport. Please test your stuff before posting it here.
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JanisErdmanis 6 hours ago
This is really funny ;D Gives Tetris vibes and is executed beautifully.
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NooneAtAll3 5 hours ago
I wish it wasn't time-limited...
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UltraSane 56 minutes ago
cool idea but it needs to get slower as the levels get harder
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mrkramer 6 hours ago
This looks like something I would vibe code with Google's Gemini. Interesting concept.
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sublinear 2 hours ago
The page width is not responsive and unusable on mobile
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brew-hacker 7 hours ago
Fun interactive game!
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SilentM68 7 hours ago
Cool idea! I shall give it a try :)
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mdp 3 days ago
TL;DR: I think you should still learn regex, even though AI has made it a "useless" skill

https://mdp.github.io/2026/03/17/the-kids-are-alright-and-th...

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m3galinux 7 hours ago
Not so useless. In my experience LLMs are about 50/50 on making a regex that actually works and covers the cases you asked it for. Even less when you get into cases needing advanced features like backreferences and lookahead.
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littlekey 3 hours ago
Anecdotal data point, writing and maintaining regex is still a core part of my job. Not useless at all for me :)
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croes 7 hours ago
A little bit early to tell.

Let’s wait how affordable, available and good AI is when the companies turn to profit maximization and enshittification begins

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cachius 6 hours ago
You can go local now with qwen 3.5 9B Q4 powering hermes agent at 35 to 50 tok/s with 99 percent tool call success rate on a used RTX 3060 for the price of two months of ChatGPT Pro and never bother. https://xcancel.com/sudoingX/status/2033020823846674546#m

This is the worst local AI will ever be. It only gets better from here. https://xcancel.com/sudoingX/status/2033959603944493192#m

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croes 4 hours ago
Nope, if nobody trains the models on new data you have at some point an outdated model.

Imagine Qwen 3.5 created in the 1990s and then use it for today web or desktop development.

And is the problem solved that training AI with AI code makes the AI worse? If not the "it only gets better" claim is questionable.

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autoexec 2 hours ago
> Nope, if nobody trains the models on new data you have at some point an outdated model.

As people train the models on new data they'll be increasingly training on AI output including hallucinations and slop. More garbage in means even more garbage out and the cycle will continue as "updated" models decline in quality.

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neonsunset 6 hours ago
[dead]
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