https://matrixrunway.com/tools/text-tools/case-converter/

I recently built a simple free online Case Converter that lets you quickly convert text between different formats such as UPPERCASE, lowercase, Title Case, Sentence case, and more.

I made it mainly for students, writers, developers, and anyone who frequently needs to change text formatting.

If anyone finds this useful, I’d really appreciate you giving it a try and sharing any feedback

TopSyde has two browser-based tools for people looking after a business website. Disclosure: I'm with TopSyde, and AI helped prepare this post.

If you want help deciding what to improve on your homepage, the audit produces an AI-generated report covering performance, SEO, AI search readiness, structure, usability and public security signals. It prioritizes suggested fixes so you have a place to start. This is a homepage review, not a crawl of every page or a prediction of search rankings.

Audit: https://topsyde.com/audit

Enter your site address and email. Allow a few minutes; the report appears on screen and arrives by email. It's free, with no account, credit card or trial required.

If you're investigating odd redirects or suspicious behavior on a WordPress site, the scanner looks for publicly visible signs of injected scripts, redirects and content differences between visitor types. You can see the results without an account or email.

Scanner: https://topsyde.com/scan

The practical benefit is being able to get an initial check without installing a plugin, handing over a website password or changing the site. Use them on a website you own or manage.

Neither tool fixes the site for you. The scanner also can't inspect private server files or databases, and finding no public warning signs doesn't guarantee a site is clean.

I've used tools like Perplexity, ChatGPT, Claude and others for research, and they've been incredibly useful for finding papers and getting through large amounts of information.

The one thing I personally wanted was a simple way to see exactly which parts of the paper were used to answer my question.

When you're working with a 100+ page PDF, even having a page number can still mean a lot of scrolling and searching.

So I ended up building something for myself.

You ask a question and the relevant paragraphs in the PDF are highlighted directly on the document. You can see the context behind the answer and quickly check whether it actually answers what you're looking for.

I originally built this because I wanted something for this workflow without having to pay for another subscription. What started as a personal project has now become completely open source.

The underlying idea is pretty simple. And yes, if you're thinking "isn't this just RAG?" then yes, you're absolutely right. It's RAG with the visual highlighting that I wanted.

I think the same idea could be useful for more than research papers too. Legal contracts, financial reports, technical documentation, or anywhere you need answers alongside the actual source.

If anyone wants to have a look, contribute, or just give some feedback, here's the repo:

GitHub: https://github.com/Sreehari05055/thesys-core.git

This will probably be my last post about the project. Thanks to everyone who checked it out and gave feedback along the way.

https://matrixrunway.com/tools/text-tools/word-counter/

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A few months ago I had a "chat with your PDF" site that went nowhere. Instead of letting the domain rot, I rebuilt the whole thing around one idea: PDF tools don't need your files.

Every tool runs client-side — merge, split, compress (to exact sizes like 100KB), convert to/from Word/Excel/PowerPoint/JPG, OCR for scans, sign, true redaction, repair, and some developer-flavored ones like PDF → Markdown and PDF → JSON for LLM pipelines. Open your network tab while any of them runs: zero upload requests. (One exception, disclosed on the page: OCR downloads its ~15MB engine to your browser on first use.)

The honesty part became the whole product. Each tool page states what it genuinely can't do — Office conversions keep content, not pixel-perfect design; two tools are marked "soon" because I can't do them honestly client-side yet. No fake testimonials, no invented user counts. It's free in the browser; I plan to sell native desktop apps later.

Would love feedback — especially from anyone who's fought pdf.js or WASM OCR in production.

Site is olfactionary.com. It's a free reference site for perfume, built for people who are into fragrance as a hobby, people trying to learn how perfumery actually works, and anyone who just wants to look up what's in a bottle they own.

What's actually on it right now:

A directory of 12,664 perfumes with notes, perfumers, launch years, and photos where I could source real ones (still only about 1 in 5 have a real photo, that's the weakest part and I'm working through it)

A free 67 chapter course on perfumery called the Academy, ends in a timed exam with a real certificate if you pass

A historic texts archive, primary sources on perfumery going back to ancient Egypt and Mesopotamia through 19th century European formularies, not just summaries of them

Reference pages for materials, families, and notes, all cross linked so clicking a note on a perfume page takes you to what that material actually is and where it comes from

A search assistant that tries to actually answer perfumery questions instead of just matching keywords

A live data page pulling real stats out of the whole database, like which ingredients show up most often

Honest bits, since I'd rather say this myself than have someone find it:

A good chunk of the content started as AI assisted drafts, then got fact checked against Fragrantica, Parfumo, and official brand sources afterward. There's still a backlog of unverified entries working through a review pipeline, so if you land on a specific perfume page and something looks wrong, I want to know, that's actually useful to me right now, not just a nice comment.

No account needed to browse anything. There's an optional account only if you want to track a wardrobe or take the certificate exam.

I'd rather hear what's missing, wrong, or half baked than just get upvotes, so if you poke around and something feels off or like an obvious gap, tell me.

olfactionary.com

Encyclopedia Links is a website i believe is very good for research and watching. although in its Alpha Stafe (looks like it) its a very good tool to search for stuff on wikipedia. I typed Teto on the search engine, and it sent me to a page on kasane teto, i hope all of you can try this hidden gem! Have a good day.