Launched PasteCheck on Product Hunt today built solo from my Android phone, would love your support and honest feedback
So today is the day I actually put PasteCheck in front of the world properly via Product Hunt and I am equal parts excited and terrified if I am being honest.
The idea came from a really simple frustration. I kept switching between my code editor and AI tools just to check if my syntax was correct and the constant back and forth was killing my flow. So I built something that just does that one thing and nothing else.
You paste your code, it detects the language automatically, highlights any syntax errors in red and warnings in amber, and you tap any highlight to get a plain English explanation of what went wrong. No account, no install, no friction at all.
It supports JavaScript, TypeScript, Python and HTML including mixed language detection inside HTML files which took a while to get right.
The thing I am most proud of is that I built the entire thing from scratch on an Android phone. No laptop, no team, no budget. Just me, a phone, and a problem I wanted solved.
I know its not perfect. The JavaScript linter stops after the first error which I want to fix. I want to add more languages. There is plenty still to do.
If you have a minute today I would genuinely love two things. A look at the Product Hunt listing and any honest feedback on the product itself, good or bad. I am at the stage where real opinions matter more than anything.
Product Hunt: https://www.producthunt.com/products/pastecheck
Tool itself: https://www.pastecheck.co.uk
Thanks for reading.
The core idea is useful because it removes one small but annoying break in developer flow: leaving the editor or AI session just to understand a syntax issue.
The one thing I’d pressure-test before more Product Hunt traffic comes in is the name. PasteCheck explains the first action, but it also makes the product feel like a simple paste box. The stronger angle is not “paste code and check it.” It is faster code understanding without breaking flow.
That matters because if you expand into more languages, AI explanations, quick fixes, browser/editor integrations, or lightweight debugging, PasteCheck may start feeling narrower than the product.
A name like Xevoa.com would work better as a broader dev-tool brand around that direction. Not because the product needs to become complicated, but because the current name may cap how seriously people read it during launch.