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Ask HN: What are you working on? (April 2026) (Non AI)

20 points - last Tuesday at 6:01 PM


Tell me about your latest non-AI project and I'll check it out

  • junaid_97

    last Tuesday at 7:50 PM

    I'm building free immigration software for DIY applicants [1]

    It's a free USCIS form-filling web-app(no Adobe required). USCIS forms still use XFA PDFs, which don’t let you edit in most browsers. Even with Adobe, fields break, and getting the signature is hard.

    So I converted the PDF form into modern, browser-friendly web forms - and kept every field 1:1 with the original. You fill the form, submit it, and get the official USCIS PDF filled.

    I found out SimpleCitizen(YC S16) offers a DIY plan for $529 [2]

    So, a free (and local-only) version might be a good alternative

    [1] https://fillvisa.com/demo

    [2] https://www.simplecitizen.com/pricing/

      • cousin_it

        last Tuesday at 8:48 PM

        Wow! I'm not in the target audience, but this is exactly what I love to see :-) Thanks for doing this!

          • junaid_97

            yesterday at 4:54 AM

            :)

        • aleksuix

          yesterday at 1:13 AM

          [dead]

      • meander_water

        today at 9:27 AM

        I'm building this mostly to scratch my own itch https://findsubstack.com

        A newsfeed for Substack posts from the past 24h. Its helping me discover writers other than just what the algorithm gives me.

        • riki-nishida

          today at 3:11 AM

          I'm building a desktop writing app for novelists, built with Tauri 2.

          I started it because existing writing tools didn't handle Japanese-specific needs well. It's fully local-first no account or internet needed.

          https://github.com/riki-nishida/shizuku-editor

          • yuppiepuppie

            today at 8:46 AM

            I keep on chipping away and curating the HN Arcade :) https://hnarcade.com

            Check out the newsletter for weekly updates!

            • hiribarne

              yesterday at 4:31 PM

              I built ProtoWall (https://protowall.app), an auth and NDA wall that sits in front of your prototype. You invite someone by email, they log in via magic link, sign a versioned NDA, and get reverse proxied through to your app. No SDK, no middleware, no code changes on your end.

              Built it because I was tired of the "just password protect it" workaround when sharing early stage work. Passwords get forwarded, and wiring up auth on something you'll throw away is wasted effort. I wanted a paper trail. Who saw what, when they signed, and a way to revoke access instantly.

              Free tier gets you 1 project, 5 invites, default NDA template, and a 7 day audit log.

              • mparas

                yesterday at 3:32 PM

                I am building Sensonym (https://sensonym.com), a vocabulary learning app that uses phone sensors (gyroscope, camera, mic, accelerometer) to tie physical interactions to words. For example, you tilt your phone like a glass to learn "drink", shake your phone to learn "earthquake", charge it to learn "eat". The idea is that these associations help improve recall.

                I've just launched it on iOS and Android in Germany with support for 10 languages. Happy to receive any feedback

                • greey2026

                  today at 3:12 AM

                  I’m working on [Sparkposter](https://sparkposter.com), a small tool that helps people turn quotes, affirmations, and short text into polished shareable images.

                  The main thing I’m trying to improve right now is speed: fewer steps, better defaults, and outputs that don’t feel templated.

                  I'm still working on it. bulk create quote image featrue will coming soon.

                  • remohexa

                    yesterday at 4:50 AM

                    Just finished building a side project that utilizes Android's captive portals, The main idea was an offline space for strangers who would randomly connect to an open wifi network. From there their device would open the captive portal webview in full screen, and from there they can explore the platform.

                    I used a unique modern matrix and polished everything with another project I built which's a deterministic picture generator used to let people interact with something interesting, already using it to produce their default profile picture using their id as the seed.

                    It meant to run on raspberry pi and I already built an img for the first release.

                    https://github.com/remohexa/rematrix-gallery

                    And there's also a demo: https://rematrix.remohexa.com/

                      • skyberrys

                        today at 3:08 AM

                        I'm glad you got it working as you intended!

                    • ariuser8434

                      yesterday at 12:08 PM

                      https://www.salaryconfidential.com which allows you to run private small-size peer compensation surveys without leaking identity (anonymous forms aren't that anonymous when you pick up any context. You can get incredibly niche, as long as a survey peer group is at least 4 people. And hopefully, this sets you up to negotiate hard based in real-life evidence, not broad ranges from Glassdoor

                      We use data models and release rules borrowed from k-anonymity techniques, batched releases and privacy pass cryptographic tokens to create super safe surveys, and everyone who participates as an invite peer gains access to the same full-fat report.

                      Our form supports specific benefits extension by geography, an extended equity compensation set of questions for packages where equity is significant; and performance pay questions for groups (like sales, execs) where performance pay is also a significant part of the package

                      Also, we make it easy to explore pay gaps (gender, ethnicity, gender identity, whatever it is) because you can run several peer groups under one poll. no person gets tagged but you do know which respondent was in which peer group - so you can keep context in view (but size needs to be at least 4) but also have a broader view by rolling up results.

                      Knowledge is power, and all that

                        • yesterday at 3:03 PM

                      • jmacduff42

                        last Tuesday at 7:32 PM

                        I’m building DataJelly.com — a visibility layer for AI-built and JS-heavy sites.

                        A lot of tools like Lovable and Bolt generate apps that look great but don’t expose content well to search or AI crawlers. The impact is lower search ranking, fewer AI citations, and broken social links.

                        We fix all of that by returning fully rendered HTML to SEO bots and clean Markdown to AI crawlers so they can actually understand the content. We also fix the Social Sharing broken links with custom HTML generated just for sharing your links on social.

                        Quick setup, no code required.

                        Free: visibility test: https://datajelly.com/#visibility-test Our Edge Product: https://datajelly.com/products/edge

                        Happy to answer questions.

                        • sakamotosan

                          yesterday at 5:21 PM

                          VERDURE is still a creative plant-generation sandbox where you grow and sculpt stylized trees.

                          https://store.steampowered.com/app/4069810/VERDURE/

                          • shivang2607

                            yesterday at 10:12 AM

                            I’ve been working on an open-source tool to help visualize JavaScript/TypeScript codebases (React, Next.js, Node.js). The core idea is building a dependency graph at the function/component level and exploring relationships across the codebase.

                            One feature that turned out to be particularly useful is what I think of as “blast radius”, If you change a function or component, what other parts of the system are affected?

                            This has been especially helpful when thinking about PR reviews, not just what changed, but what the change might impact indirectly.

                            It’s still early, and I am working on the cloud version which will include LLM interface to interact with graph and other team collaboration feature and github connection but I’d really appreciate feedback from others who might find this tool useful, and I invite anyone and everyone to contribute to the open source github repo.

                            Github: https://github.com/devlensio/devlensOSS Landing page: https://devlens.io/

                            • yesterday at 1:24 AM

                              • yesterday at 8:44 PM

                                • riddu

                                  yesterday at 1:48 PM

                                  First skills matrix software on the market that actually helps you build a process that supports people growth and allows managers to manage without heavy, and expensive HR tools. Main page: https://matricsy.com and just started working on PL version: https://matryca-kompetencji.pl/

                                  • segmondy

                                    yesterday at 1:14 PM

                                    gardening, raking leaves, composting things, burning branches and woods, chopping trees, weeding, manuring, and planting flowers. that's the april project

                                    • rozenmd

                                      yesterday at 6:41 AM

                                      Still OnlineOrNot (https://onlineornot.com/) - I've been working on adding more and more configurability to the browser checks feature.

                                      More recently, I've made it so you can drop your existing playwright test suites into the code editor, and it'll Just Work.

                                      A whole bunch more work to do around that, but I think letting folks drop code in makes more sense than continuously updating the UI.

                                      • austin-cheney

                                        yesterday at 10:27 AM

                                        Something like Windows Task Manager but it also works in Linux, monitors Docker containers, provides logging, and spins up web servers. It’s web servers serve http and web sockets from the same port and includes streaming proxies.

                                        https://github.com/prettydiff/aphorio

                                        • cloudflareapp

                                          last Tuesday at 6:25 PM

                                          I've also worked on this.

                                          Manage Cloudflare, Anywhere

                                          https://apps.apple.com/us/app/cloudflare-remote/id6743181258

                                          https://play.google.com/store/apps/details?id=com.emrekeles....

                                          • yesterday at 2:50 AM

                                            • kriz9

                                              last Tuesday at 6:25 PM

                                              I am working on https://spatialsheets.com Think geodata formulas + excel. Mostly for my own use just to quickly debug geodata. Used to heavily use geojson.io for it but it is not very good at handling large datasets and couldn't enrich data so I started working on this thing.

                                              • BrunoBernardino

                                                yesterday at 10:00 AM

                                                My wife and I continue to work on Uruky, a EU-based Kagi and Google Search alternative [1].

                                                Since last month we finally got our production API Key for EUSP/STAAN (it was certainly the slowest and most complicated search provider to adopt, so far), and that brought us to 5 search providers you can choose from and sort as you prefer.

                                                We already have got over 40 paying customers (excluding family and friends, we’re guessing these paying customers came from some privacy listings and HN comments) and have exited beta last month!

                                                Customers seem to really enjoy the simple UI (search can be used without JS) and search personalization (from choosing the providers to the domain boosting and exclusion). We also have hashbangs (like "!g", "!d", or “!e”) when something doesn’t quite give you what you’d expect, though.

                                                You can see the main differences between Kagi and Uruky in the linked page, but one huge difference is that with Uruky, after being a paying customer for 12 months, you get a copy of the source code!

                                                One thing we’re struggling with is outreach because we want to do it ethically, and it’s hard to find communities or places to sponsor which are privacy-focused and don’t require €5k+ deals. Ideas are welcome!

                                                Because of bots there isn’t a free trial easily available, but if you’re a human and you’d like to try it for a couple of days for free, reach out with your account number and we’ll set that up!

                                                Thanks.

                                                P.S.: Because people have asked before, our tech stack is intentionally very "boring" (as in, it generates and serves the HTML + bits of JS to enhance settings and such), using Deno in the backend (for easier TypeScript), PostgreSQL for the DB, and Docker for easier deploying.

                                                P.P.S.: Because this has been also brought up before, the name has no special meaning but we read it like "Euro-key" in English. Names are hard, and we’re aware it can remind people of Uruk and Uruk-hai. That’s OK.

                                                P.P.P.S.: Another frequent question here is “how does it work?” When you search, we query the first search provider on your list, and if it yields less than X results (only Mojeek really gives us a total count, we have to try + estimate for the others), we try the second, and so on. We then merge the results in a round-robin fashion (first of first, first of second, second of first, second of second, and so on). There’s a bit of more nuanced logic to also properly rank the results with the pin/exclude/raise/lower preferences, because it works differently across providers and not all of them support that, for example.

                                                [1] https://uruky.com

                                                • cousin_it

                                                  last Tuesday at 6:34 PM

                                                  I'm working on https://suggestionboard.io, a simple live polling and Q&A webapp that doesn't require an account. Just launched the first version and trying to figure out if there's a market.

                                                  • wasimsk

                                                    last Tuesday at 6:07 PM

                                                    I built a zero-backend CDN for hotlinking SVGs. Unlimited bandwidth.

                                                    https://svg.inbondz.com

                                                    I was tired of copying and pasting SVGs over and over again for my projects and social links. So I built that. Tell me if you need any other SVGs.

                                                    • twooclock

                                                      last Tuesday at 7:37 PM

                                                      https://ShipmentPlanner.com - optimizing shipments to Amazon and 3PL. Got some clients and now I'm on to marketing (mostly emailing and LinkedIn outreach). It's tough.

                                                      • oulipo2

                                                        yesterday at 11:59 AM

                                                        We're building a repairable, connected and fireproof e-bike battery at https://infinite-battery.com :)

                                                        • frog437

                                                          last Tuesday at 6:30 PM

                                                          Understand an entire codebase instantly : www.ix-infra.com

                                                            • shivang2607

                                                              yesterday at 10:13 AM

                                                              I've been building something similar to visualize the codebase. https://github.com/devlensio/devlensOSS

                                                              • frog437

                                                                last Tuesday at 6:30 PM

                                                                It's a CLI tool. It plays well with AI but it works great without it.

                                                            • ffwebmaster

                                                              today at 8:18 AM

                                                              [dead]

                                                              • MatrixOrigin

                                                                yesterday at 11:10 AM

                                                                [dead]

                                                                • aleksuix

                                                                  yesterday at 1:15 AM

                                                                  [dead]

                                                                  • elmlabs

                                                                    last Tuesday at 6:12 PM

                                                                    Not me but good friend of mine is building https://onepilotapp.com , genuinely looking for it going live.. me I m testing SEO, unsuccessfuly so far ^^

                                                                      • wasimsk

                                                                        last Tuesday at 6:19 PM

                                                                        Mobile first IDE!

                                                                        I would love to use it, it will certainly help me when I am not able to use my laptop.

                                                                        • wasimsk

                                                                          last Tuesday at 6:17 PM

                                                                          Mhm. Great!

                                                                          Btw. Nice to meet you.

                                                                          So what did you learn in SEO? I generally don't have much knowledge about it.

                                                                            • elmlabs

                                                                              last Tuesday at 6:25 PM

                                                                              Litteraly started 2 days ago ahaha, I spent a lot of time building things but never making them visible, so far I got nice results on the news aggregators feeds. I ll not try so hard in it, I still think bringing genuine interest about a topic is a more respectful way of doing

                                                                                • wasimsk

                                                                                  last Tuesday at 6:28 PM

                                                                                  I got it. Are you a developer? Have GitHub? X or something?

                                                                                    • elmlabs

                                                                                      last Tuesday at 7:15 PM

                                                                                      I just created an X account @elmlabs1 we can catch up!