r/prettyusefulwebsites

I built this, so mods please delete if it’s not allowed.

I’m a landlord and looking to get into more rental properties, but was sick of the stupid calculator / advice sites out there. So being a software engineer by trade, I decided to try and give back to the community a bit and I built a quieter rental property calculator.

https://nonoisetools.com/tools/property/rental-property-calculator/

It estimates cash flow, yield, break-even rent, and basic return assumptions. It’s not tax, legal, mortgage, or investment advice — just a simple way to sanity-check early numbers.

I’d genuinely appreciate feedback from property people. Are the assumptions clear? Anything obvious missing?

This sub gets the assignment better than most so I'll be direct.

The no-code movement solved half the problem. You can build almost anything now without knowing how to code, which is genuinely incredible and wasn't true five years ago. But there's still a gap that nobody talks about. Even with the best no-code tools you still have to know which tools to pick, how to connect them, how to write copy that converts, how to set up ad accounts, how to source products, how to structure a funnel. The learning curve didn't disappear, it just moved.

Most people in this sub know exactly what I mean. You've spent a weekend deep in Zapier trying to get two things to talk to each other that should just work. You've rebuilt your Webflow site three times because the first two didn't convert. You've watched your Notion dashboard get more elaborate while the actual business stayed the same size.

That's the gap Locus Founder closes.

You describe what you want to build. The AI handles everything else. It sources products directly from AliExpress and Alibaba (or sell YOUR OWN digital services, products, or content), builds a real storefront around them, writes conversion-optimized copy, then autonomously creates and runs ads on Google, Facebook and Instagram. No Zapier. No Webflow. No piecing together eight tools that half work. Just a running business.

If you don't have an idea yet it interviews you and figures out what makes sense for your situation.

We got into YCombinator this year and we're opening 100 free beta spots this week before public launch. Free to use, you keep everything you make.

For the people in this sub specifically, this isn't a replacement for no-code tools for people who love building. It's for everyone who wanted the outcome but never wanted to become a tools expert to get there. Big difference.

Beta form: https://forms.gle/nW7CGN1PNBHgqrBb8

Happy to answer anything about how it works under the hood.

I built 35 free Canadian financial calculators in vanilla HTML/CSS/JS — no frameworks, no npm, no paywalls.

Started as a weekend project. Turned into 8 months of Canadian tax math hell.

Covers mortgage (semi-annual compounding — yes, Canada is different), take-home pay for all 13 provinces, EI, CPP/OAS, Express Entry CRS score, RSU tax, FIRE, immigration checklists and more.

Would love brutal feedback from the dev community — anything broken, wrong, or missing.

https://canadacalculator.ca

Here are some features I shipped for BiteTube this week:

• Added a dedicated “Why it’s worth watching” section so you don't have to watch videos just to end up closing them
• Built “Continue the Vibe” dynamic discovery which helps user stay on the same vibe of content
• Polished up the UI to improve user experience
• Integrated Sanity as the CMS to make managing content easier and efficient

Share what kind of features you shipped in the comments to let other users know about your project!

I kept delaying building a portfolio because it felt like copying my CV into a website and tweaking layouts for hours. So I built a tool to automate it (myseera).

You upload your resume and it extracts your experience, skills, and projects, then generates a site you can edit and publish.

What it does right now:

• Generate a portfolio from a PDF or DOCX
• Structure content into clean sections
• Edit inline and switch between templates
• Publish to a live link or your own domain

Some things were harder than I expected:

• Resumes have no standard format so parsing is messy
• AI sometimes changes wording or groups things oddly
• Fitting real CV data into templates without breaking layout

Built this because most tools I tried felt too manual or asked for payment too early. Not sure yet if people would actually rely on something like this long term. Happy to get feedback or answer questions.

Hey everyone,

I was tired of "free" online tools that are actually behind a paywall, require an email for a simple PDF conversion, or track every click. So, I built Nolimify.

It’s an all-in-one toolbox for common tasks, built with a "zero-friction" philosophy.

• Web:https://nolimify.com/
• Repo: https://github.com/sarthakworks/sarthakworks.github.io/tree/gh-pages

What’s inside:

• PDF Tools: Merge, Split, Compress (All client-side where possible).
• Image/Video: Converters, resizers, and basic editors.
• Coding: JSON formatters, Base64, Unit converters, etc.
• P2P Chat: Secure, direct chatting without servers storing your logs.

Why use it?

1. No Signup: I don't want your email. Just use the tool.
2. No Tracking: No analytics or creepy scripts.
3. Open Source: You can see exactly how your data is handled.
4. Fast: Lightweight and loads instantly.

I’m looking for feedback on what tools I should add next. If you find a bug or have a suggestion, let me know!

I built MindRushGames, a free browser game where you test your memory through color, shape, sound and number challenges. Each game has 5 quick rounds, gives you a final score, and lets you see how precise your memory really is.

The website: https://www.mindrushgames.com/

Every time I needed to process a PDF I had two options:

1. Upload it to some random website and hope they don't store it forever
2. Self-host something like Stirling-PDF which requires Docker, a server, ongoing maintenance, and still processes files server-side

Neither felt right for sensitive documents. So I spent months building a third option.

Mini Tool- A PDF toolkit that runs 100% in your browser. No server. No Docker. No setup.

No maintenance. Just open the URL and it works.

What it does:

- Compress, Merge, Split, Rotate PDFs

- Protect and Unlock PDFs (AES-256 encryption)

- Sign and Watermark PDFs

- Organize pages (drag and drop reorder)

- Batch process multiple files at once

- Workflow Builder (chain operations together)

- Images to PDF

- Smart Print Mode + Booklet Optimizer

The privacy angle that matters:

Every operation runs locally using pdf-lib and PDF.js in Web Workers. I opened DevTools and

confirmed zero outgoing file requests during processing. Your files genuinely never leave

your device.

For the crowd specifically:

I know this community values owning your stack. The irony here is that "self-hosted" still means your files hit YOUR server. With browser-based processing the files never hit any server at all - not even one you control.

It's the most private PDF processing possible short of running offline desktop software.

What I'd love feedback on:

- Are there PDF operations missing that you regularly need a self-hosted solution for?

- Any edge cases with complex PDFs you'd want to test?

- Would an offline PWA version be useful to this community?

Link: https://minitool.dev

In Sonora, no login is required. You can filter AI music results from YouTube and search and listen (without interruptions) by artist (YouTube Music), mood, or genre. The platform makes an auto mix. It is mainly focused on desktop use via web app, Chrome extension, or Firefox add-on. You can also use it as a PWA app on Android if you use Chrome. It works as a search platform and also as a chatbot where you can request more information about an artist or check similar artists. I use it every day and I don’t miss Spotify.

I think it’s cool if you’re looking for a free alternative with no login required and anonymous browsing, and you can find everything because it uses YouTube Music’s catalog for artists.

https://sonora.chat

It is also a non-profit project for promoting indie artists. We are musicians and we know it is really difficult to get heard on the main streaming platforms, so the idea is to select new artists and promote them above the results of mainstream artists and genres. We also give them a PWA app for their music. The idea is to change the artists’ model, which we think is not fair.
Sonora is in beta version (although it already has global recurring users every day) and we will add more features in the future. All feedback is welcome.

I don't know how well that video explains it (I'm not great at this bit!), but more info on Doathingy.com

Basically, Doathingy lets you describe any task, thing, job you need to get through, it will then build you a custom tool to solve that task.

Any files are processed locally in your own browser, nothing is sent to AI other than your prompt and contextual info, your tools are yours to keep, edit and evolve, etc.

It means you get to curate your own utility library with custom tools, no more google searches, dodgy websites, or remembering where you found that great tool months ago.

I started building this as a way to curate my own set of web tools, things spiraled quite quickly, people have already been building things I could never have imagined, and now we're here!

The idea is to make vibecoding more accessible to mainstream users, just looking to get a thing done. It's about small functional tools, that anyone can build, with as little friction as possible and as cheaply as possible (in the current set-up you could build a utility for as little as $0.20). You won't build your next startup in Doathingy, but you might just get some actual jobs done :)

I'm opening up an early-access waitlist and want to invite early testers to try it out for free.
You can check out live demos on the site: Doathingy.com and register for early-access there too.

Any questions/feedback/anything, hit me up!

Yes. You read that right.

https://vishva.lol/what-if

Created this website, to answer your weird questions which can have a butterfly effect, ripple or domino effect and will give you curated answers.

Trust me it’s funny, try it out. You can share your questions which your answers with the share button too.

Please tell me how it goes and open to feedback and suggestions!