Show HN: PulseTimer – A clean, customizable work/break timer you can self-host https://bit.ly/4lewuUz

Show HN: PulseTimer – A clean, customizable work/break timer you can self-host I built PulseTimer because I wanted a clean, distraction-free work/break timer that actually lets me tweak session lengths, break intervals, and notifications without requiring an account or tracking anything. Features: – Customizable work sessions & break durations – Optional notifications with sound – Skip break button when needed – Session history and progress tracking – Fully local, no accounts or tracking – Self-hostable (Node + Express) Live demo: https://bit.ly/3Ggdd69 Source: https://bit.ly/4kvxLFv Would love any feedback, suggestions, or bug reports! https://bit.ly/3Ggdd69 July 8, 2025 at 02:21PM

Show HN: OffChess – 100k+ Offline, Ad-Free Chess Puzzles App https://bit.ly/403f70z

Show HN: OffChess – 100k+ Offline, Ad-Free Chess Puzzles App Hi HN! I'm the developer of rdx, a mildly popular ad-free, privacy and user friendly Reddit client. This time, I made something for a very specific use case: solving chess puzzles with no internet. Why? Well, my Wi-Fi is terrible in the bathroom—and that's where I do some of my best thinking. I tried printing out “mate in X” puzzles to solve offline, but they weren’t fun without interaction. So I built OffChess. OffChess is an iPhone/Android app that contains over 100,000 chess puzzles, fully offline and completely ad-free. You can solve puzzles by category (Mate in 1/2/3/4/5, tactics like pins/forks/skewers, or openings like Sicilian/French, etc). You gain or lose points based on how you perform, so there's a light rating system to keep things engaging. No accounts, no tracking, no monthly subscriptions, no internet required. Just pure, old-school tactical chess training, wherever you are. You can check out the iPhone/iPad app at https://apple.co/4lewow5... or the Android app at https://bit.ly/4kwEm2K Would love feedback, bug reports, or suggestions. Thanks! https://bit.ly/4ktqOVM July 8, 2025 at 09:57AM

Show HN: HireIndex – A Searchable Directory for Who Wants to Be Hired on HN https://bit.ly/4kuEPlU

Show HN: HireIndex – A Searchable Directory for Who Wants to Be Hired on HN Hi HN, I built hireindex.xyz – a searchable website that aggregates and indexes candidates from the "Who Wants to Be Hired" threads on Hacker News. Coming soon: Analytics to highlight trends in skills, technologies, and candidate preferences across HN posts. With HireIndex, you can: Search by tech stack. Quickly scan bios, salary expectations, and contact links. Filter by remote/on-site preferences and employment type. I made this because I was tired of scrolling through long threads and wanted a better way to find interesting people. Would love your feedback – especially around UX and anything that would make it more useful to hiring managers, founders, or even job seekers themselves. https://bit.ly/4ledipT https://bit.ly/4ledipT July 8, 2025 at 05:11AM

Show HN: I built a website to summarize Tech Twitter each day https://bit.ly/3TqN2N6

Show HN: I built a website to summarize Tech Twitter each day Hey folks, I built this as a nightly job that pulls the tweets from a burner account I made, then passes it to GPT-4.1 to summarize alongside some recent headlines: https://bit.ly/3Igw1Tl... https://bit.ly/40D8rX2 July 7, 2025 at 03:36AM

Show HN: uvtarget – a helpful utility to manage Python in CMake, powered by uv https://bit.ly/46sUUFi

Show HN: uvtarget – a helpful utility to manage Python in CMake, powered by uv https://bit.ly/44hHpac July 7, 2025 at 12:44AM

Show HN: Modernized File Manager and Program Manager from Windows 3.x https://bit.ly/4nRWzuD

Show HN: Modernized File Manager and Program Manager from Windows 3.x This is a fork of Windows File Manager combined with a from-scratch remake of Program Manager. Fast, lightweight, and suitable for daily driver use. https://bit.ly/4nAwAHC July 7, 2025 at 12:55AM

Show HN: I Built a Minimal AI Chat app with Local Storage and Advanced Research https://bit.ly/44gE2jF

Show HN: I Built a Minimal AI Chat app with Local Storage and Advanced Research https://bit.ly/45ReMln July 6, 2025 at 03:04AM

Show HN: a community for collaborating on sideprojects https://bit.ly/4kubTKX

Show HN: a community for collaborating on sideprojects TLDR: I made a community where you can find builders or product owners to collab on sideprojects together with <3 A year ago i completed my first sideproject, a digital course on how to "cold email a chief information security officer". I thought and think its a great course, but of course I fell into all the traps (didnt verify a need, i thought id make it and everyone would buy automatically), i tested google ads but hated nerding on that, so i decided to find a marketing person to partner up with! But i knew no one! That got me thinking how many people with relevant knowledge that isnt connected to others who need it, so i started gathering these people in an excel doc with what they know and then we created a slack channel for this etc! (fenomener.framer.website). Suddenly now we are 400 people sharing about our projects and collaborating! But if there is one thing ive been missing its "profile pages", that doesnt work well in slack. Id love to see an awesome project but then lurk a bit on who this person is before engaging in anything. so thats when we made the common decision of: what the heck, lets just build the thing we want. So I partnered up with a fullstack (from the community!!!!!) and built relentlessly.no. we have like 50 users now and 17 projects and just finished our Minimum Lovable Product. Its not good enough yet and we are working on adding notifications and at least optimizing for first the product leader flow, then the builder flow. (we often get product leaders with a demo joining that are HUNGRY for devs, or we get builders hungry for anyone with an idea! its a god damn marketplace maybe!) I actually think this might become 1000x more important than YC, because its place and time independant, and no one or no org has taken a place in the important space of sideprojects, where actually "everything begins". SIdeprojects sound so naive and not important, but after nerding on this a year i kinda see them as the most powerful thing we have. And this feels exactly as counter intuitive as a great idea should feel. So if we can let relentlessly resourceful people around the globe bump into each other, then the next gen of startups will be born here. Thats freaking meaningful stuff. And the hidden gem in all of this is something that didnt strike me before i had been working on it for a year: The point isnt to find someone to collab on your current sideproject. The whole value is the relationships that get formed. Because now after a year in this space then sideprojects have come and gone, but i have like 8 new "cofounder ready" relationships formed, where i actually trust them and "know" them and can build in the future with them. So i guess we are sortof solving "cofounder matching" without the akward "cofounder meetup night", or the slow "you HAVE to go to school with them for four years. business wise this is my passion project for life I feel, and the ethical founder friendly direction im pursuing is just adding this on the site: "if you met your cofounder here, like the product and youre raising money with another confirmed investor: please invite me to your round <3" I dont have money but maybe that will sort itself out, so this just makes me the worlds poorest investor with the most original investment product ever :D https://relentlessly.no/ July 2, 2025 at 07:32PM

Show HN: Quotatious – A Wordle and hangman inspired game https://bit.ly/4kjSFaF

Show HN: Quotatious – A Wordle and hangman inspired game Hey All, My wife loves word games like Wordle and Connections, she had an idea for a similar game inspired by Hangman and asked me to build it. Here it is, flaws and all. Any feedback is very welcome. https://bit.ly/4ks34kx July 6, 2025 at 12:49AM

Show HN: From Photos to Positions: Prototyping VLM-Based Indoor Maps https://bit.ly/3GsMnaV

Show HN: From Photos to Positions: Prototyping VLM-Based Indoor Maps Just a fun hack I did while bored over the weekend. My wife was busy shopping, it got me thinking that can VLMs solve the indoor location problem in a mall? Can I just show a VLM a map and an image and have it doa good enough job locating me? I hacked this P.O.C and it seems to work. https://bit.ly/4eJsx88 July 6, 2025 at 12:19AM

Show HN: Flint – Write code your way while ensuring remote consistency https://bit.ly/3IbYp92

Show HN: Flint – Write code your way while ensuring remote consistency I just released my biggest project yet: Flint, a language-agnostic Git wrapper that lets developers code using their own formatting preferences locally, while automatically enforcing the project's style on push. No more fighting over tabs vs spaces or dealing with noisy diffs. GitHub: https://bit.ly/3TTKarY Documentation: https://bit.ly/4lIzxo1 Article: https://bit.ly/3U2lfm5... https://bit.ly/3TTKarY July 1, 2025 at 02:01PM

Show HN: I built sinkedin – a LinkedIn but for flauting failures and screwups https://bit.ly/4eu4N7C

Show HN: I built sinkedin – a LinkedIn but for flauting failures and screwups Hi HN, I saw joke online about wanting a version of Linkedin for failures. I thought it was a great idea, so I decided to build a simple version of it. Sinkedin is a place to post (anonymously) stories about job rejections, interview screw-ups and other carrer failures. Website: https://bit.ly/4lBAtuf Github: https://bit.ly/40wxlrh I am not a designer, so the UI is very minimalistic. If it triggers your OCD, PRs are very welcome. The entire stack is running on free tiers, so please expect some latency if it gets any traffic. I wanted to ship it fast and see if the idea has legs before spending money. Happy to answer any questions. https://bit.ly/4lBAtuf July 4, 2025 at 05:57AM

Show HN: Built email parsing for booking confirmations for my travel app – Aruko https://bit.ly/46xbrbc

Show HN: Built email parsing for booking confirmations for my travel app – Aruko A few months ago I shared my travel app here. Today I'm back with something that solved a real technical challenge I was facing. The problem: Parsing booking confirmation emails accurately. Built a parsing system that: - Distinguishes between connection hubs and actual destinations - Captures all segments (flights, hotels, trains) in the right order - Handles different booking site email formats - Creates complete itineraries automatically Happy to discuss more if anyone's interested :) https://bit.ly/3Ia8fIF July 4, 2025 at 12:49AM

Show HN: A stupid simple barely S3 compatible file server https://bit.ly/3Tpi1Jo

Show HN: A stupid simple barely S3 compatible file server https://bit.ly/46x4KWC July 4, 2025 at 01:11AM

Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing https://bit.ly/4linZIm

Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing I launched NumPad v1 on here a few years ago, and back then it wasn't much more than a thin CodeMirror wrapper around the calculator engine I'd written. Now I've rewritten it as a PWA that supports multiple documents, persists them to IndexedDB, and has a syncing service for paying customers. Syncing is handled by Automerge[1] under the hood, which should make it relatively easy to get document sharing working too. [1] https://bit.ly/4lvoTBr https://bit.ly/3bYLxUb June 30, 2025 at 09:10AM

Show HN: Bookmark and organise your mobile links with ease with this free app https://bit.ly/3Gurqwd

Show HN: Bookmark and organise your mobile links with ease with this free app Do you have lists scattered all over your phone? Are you tired of saving recipes, books or restaurants in Notes, screenshots or Whatsapp groups? Listee is the bookmark tool to privately save and structure the things you love. Never lose track anymore of the places you loved, movies you wish to see or shoes you want to buy. Save any content in seconds using the share function on your phone or the search engine within Listee. Connect with your friends to share your favourites or create lists together. Listee is the new way to save, share and explore with the ones you love and trust. Also for your wish lists! https://bit.ly/3GrShck July 3, 2025 at 09:43AM

Show HN: I made a social media platform https://bit.ly/45XDlND

Show HN: I made a social media platform https://bit.ly/3GjQx4W July 3, 2025 at 04:53AM

Show HN: I made a Chrome extension to export web element to code https://bit.ly/3ZZkv4T

Show HN: I made a Chrome extension to export web element to code Recently I'm working on CopyUI which is an extension to copy UI element from websites and export html(or jsx) and css(or tailwind). I'm building this tool in order to create better landing pages because I'm really not good at layout and colors. So I hope to learn from others' design and innovate later, not to simply replicate. https://bit.ly/4esZk0O July 3, 2025 at 03:02AM

Show HN: I created a privacy respecting ad blocker for apps https://bit.ly/44nGPI5

Show HN: I created a privacy respecting ad blocker for apps Hey HN, I’ve been working on developing my ad blocker for the last number of years and am proud to share that I have now released a new feature that blocks ads directly in apps — not just in a web browser. What makes this app ad blocker feature special? - All ad blocking is done directly on device, - Using a fast, efficient Swift-based architecture (based upon Swift-NIO) - Follows a strict ZERO data collection and logging policy - Blocks ads in all apps on iPhones, iPads and Macs It works as a local VPN proxy, so it filters all of your traffic locally without going through any third-party servers. The app ad blocker works across News apps, Social media, Games and even browsers like Chrome and Firefox. After using ad blocking in Safari for a long time, it is eye-opening how many ads and trackers are also embedded in apps themselves. The app is available via the App Store, with a 30 day free trial, before an annual subscription is required. I know there are many other ad blockers available, but I hope the combination of performance, efficiency and respect for privacy will mean that this particular feature is a valuable option. It also took a LOT of work to get this working seamlessly within the App Store and iOS / macOS limitations, so am glad the app has been able to finally be released into the world. Full details on the feature are in the release post: https://bit.ly/4eCTzOw https://bit.ly/4eCTzOw July 3, 2025 at 02:04AM

Show HN: A local secrets manager with easy backup https://bit.ly/469jtXZ

Show HN: A local secrets manager with easy backup https://bit.ly/3I6x8ox June 29, 2025 at 10:30AM