I built Slitherlinks.com — a site to play Slitherlink puzzles (also known as “Loops” or 数回) in the browser.

Some features: • Daily puzzles with varying difficulty (easy → hard). • Multiple grid sizes: 5×5 up to 15×15. • Accounts, trophies, and leaderboards if you like competition. • Simple interactions: click to draw/erase a line, right-click (or Ctrl+click) to mark an edge with ×. • Tech stack: Next.js + TypeScript + PostgreSQL + Phaser.js, responsive design (desktop & mobile).

I enjoy logic puzzles a lot, so I wanted to create a smoother, more accessible Slitherlink experience. This is my first time sharing it here, and I’d really appreciate your feedback: • Is the UI/UX intuitive? • How is the mobile experience? • Any features you think are missing?

Try it here: https://slitherlinks.com

Thanks!

Comments URL: https://news.ycombinator.com/item?id=44971903

Points: 2

# Comments: 3

I built a small tool to make it easier to find and copy special characters, symbols, and text decorations—things like arrows, math symbols, stars, or aesthetic unicode styles (ℯ ).

The idea came from frequently searching for the same symbols (like →, , or ) when writing documentation or blog posts. Most existing tools either had too many distractions or weren’t very fast to use.

This tool is: • Focused on speed and minimal UI • Fully client-side (no tracking or login) • Grouped by type (arrows, currency, emoji-like, etc.) • Mobile-friendly

You can check it out here: https://special-characters.aitoolshubs.com/

I’d love feedback—especially on anything that feels unintuitive or if you think something’s missing. Thanks!

Comments URL: https://news.ycombinator.com/item?id=44197143

Points: 3

# Comments: 0

Current features: - Adjustable text size, speed, and formatting - Keyboard shortcuts for convenient control - Complete privacy (scripts stored locally in your browser, not on servers) - Clean interface designed for PC use

Future development plans: - Tablet and mobile device support - Multi-language support - Voice-activated scrolling functionality - Additional customization options

This tool is particularly useful for content creators, public speakers, and webinar hosts who want to maintain eye contact with their audience or camera while reading from a script.

I developed this tool because most existing solutions were either expensive or overly complex. I would appreciate valuable feedback from the HN community to help me optimize this simple yet practical tool.

Try it out: https://www.teleprompter.today

Comments URL: https://news.ycombinator.com/item?id=43490650

Points: 3

# Comments: 0

Just launched a super basic unit converter site: Metric-Converter.com. I know, I know, the internet is full of these things, right? But I kinda wanted to build one that was just… simpler. Like, stripped down and fast.

I was personally getting annoyed with a lot of the existing converters out there – too many ads, clunky interfaces, just felt slow. So, I thought, "Hey, why not try and make one that's just focused on doing one thing well: converting units, quickly and easily?"

What I tried to do with Metric-Converter.com:

Dead simple interface: No bells and whistles, just straight to the point. Hopefully loads fast too.

Focus on the essentials: Right now it's got the common stuff – length, weight, temperature, time, speed, area, volume, etc. Trying to keep it lean.

Quick and responsive: Tried to optimize it so it's snappy to use, get your results fast.

Works okay on mobile: Made sure it’s usable on phones too.

Honestly, I know it's pretty basic right now, and there's definitely room for improvement. That's kinda why I'm posting it here! I'd love to get your feedback and suggestions. Seriously, any thoughts would be awesome.

For example, I'm wondering:

What unit types am I missing that people actually use?

Where would you actually use something like this in your day-to-day? (Like, real-world scenarios)

Any thoughts on the UI? Is it easy enough to use? Any improvements you'd suggest?

Are there any other unit converter sites out there that do something really well that I could learn from?

Any and all feedback is super welcome! Thanks for taking a peek, and let me know what you think!

Link again: Metric-Converter.com

Comments URL: https://news.ycombinator.com/item?id=42959757

Points: 2

# Comments: 0

What Show HN Today does:

Daily roundup: Each day, it uses AI to automatically pull together the latest Show HN posts, so I (and hopefully others) won’t miss anything interesting. Multi-language support: It publishes the content in English, Chinese, and Japanese, so more people can follow along and explore. Images and summaries: Each project gets a brief description and a visual preview, making it easier to get a quick sense of what it’s about. This is a simple tool I made for myself and friends, but I thought it might also be useful for others who don’t want to miss out on great ideas and projects from the HN community.

I’d love any feedback or suggestions you have—I know there’s always room for improvement, and it’d be great to hear what you think! Thanks for checking it out!

Comments URL: https://news.ycombinator.com/item?id=42094265

Points: 1

# Comments: 0

I've recently launched a small web game site, and I'm looking for advice on how to grow it.

The backstory: I heard that building a game site could generate some revenue, and since I'm a fan of web games, I thought I'd give it a try. I spent a decent amount of time learning how to set up the site, find game resources, and optimize the pages. It was quite a rewarding experience seeing the site come to life.

However, after launching, I ran into a pretty significant issue: zero traffic. Not a single user. I'm feeling a bit stuck, but I know I have a lot to learn, especially as a beginner.

So, I'm here to ask for help: how can I attract users to a small game site like mine? Should I focus on SEO, social media promotion, or something else entirely? Are there better ways to validate that the games I provide are what users want?

I'd love to hear any experiences, tips, or advice that could help me get my first few users and start building momentum. Any feedback on the site itself is also more than welcome.

Thanks a lot for your time and any guidance you can offer!

Comments URL: https://news.ycombinator.com/item?id=42085003

Points: 1

# Comments: 16