Whether you're learning Java, writing algorithms, or refactoring string manipulation logic, converting a primitive char to a String is a fundamental task. While it seems simple, Java offers multiple approaches such as Character.toString(), String.valueOf(), String.valueOf(char[]), and simple empty string concatenation each with subtle differences in performance and null handling.
I am launching Asight on September 16. Asight is a live wallpaper app for Apple-silicon Macs. It supports personal videos and included 4K scenes, with per-display playback, optional desktop-item hiding, and a simple clock. There is a free build so people can try the experience before deciding whether they want the full collection. I would especially value feedback on playback, display setup, and which controls should be easier to discover. Preview the product here: https://www.producthunt.com/prod...
Launched BytePriva today 50+ free browser-based tools (calculators, PDF tools, business tools like an invoice generator and a lightweight POS system). No signup, nothing uploaded, everything runs client-side.
Something I'm still figuring out as a solo maker: with this many small tools instead of one focused product, what actually makes people trust that a free tool is legit and not just going to sell their data or bury them in ads later? Is it the "no signup" messaging, seeing the source code, reviews, or something else entirely?
Curious how other makers here think about building trust for free tools, especially ones handling things like invoices or business data. (Link to what I built, for context: https://www.producthunt.com/prod...)
My new creation which is the Universal Dynamic Titration Calculator. . Launching today Made entirely by a PHARMACY STUDENT using prompt engineering and utilising only HTML,JS,vanilla, CSS. Consisting only SVGs and extreme lightweight yet lightning fast.........
It covers all type of titrations whether it be redox, acid-base, non aqueous, complexometry, iodometry, iodimetry, precipitation titration
It can simulate, plot graph calculate normality, molarity, solubility, assay and purity% all in one screen.
Also there is an * reagent maker that can give exact instruction for making the desired concentration of reagent..
India has 43 credit card issuers, and picking a card usually means wading through affiliate blogspam that ranks whoever pays the most.
So I built BestCard (https://bestcard.in). You answer a few questions about how you actually spend, and you get a ranked shortlist back each one with the specific reasons it was picked.
Three things I was deliberate about:
Results show before any sign-up. No email wall, no credit check, no phone number.
Hi PH. I'm Dana, solo founder from Ukraine. Today I launched EmberCine an AI film studio and a streaming platform in one. You make a film by chatting with a Director AI; every film is reviewed before it goes live; viewers subscribe; creators split 55% of net subscription revenue by watch-time.
We're excited to announce the launch of our Virtual Card feature, designed to solve some of the most common challenges businesses face with shared business cards.
We re building a conversation memory layer for meetings and calls - something that helps individuals and teams remember what was decided, who owns what, what needs follow-up, and where the original context came from.
A lot of tools can record or summarise conversations, but the real pain usually comes later: finding the right decision, remembering the next step, or knowing why something was agreed.
