
Murmur — See where you fit
Daily questions game where you compare honest answers with friends, groups, and the world.
@checkmurmur · X
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Tech stack
60 projects

Daily questions game where you compare honest answers with friends, groups, and the world.
@checkmurmur · X

Document and share daily logs of your building process.
@builderbook_io · X
Share Raw unfiltered behind-the-scenes moments to the world!

Collect and display customer testimonials with analytics to track conversion impact.
@AmyVaradkar · X
It solves the scattered testimonial problem. Freelancers and agencies collect feedback via shareable form, display it anywhere, get real analytics on what converts. Beta access available right now which gives free pro plan for 15 days.

Collect customer testimonials and embed them on your website with a single script tag.
@aimicrotool · X
Just launched ProofResult 🚀 Collect testimonials from your customers and embed them on your site with a single <script> tag. No login required for them, no iframe. Free while I gather feedback from early users. #buildinpublic #indiehackers

Grades student work and detects plagiarism using AI and outcome-based rubrics.
@ProfDeskApp · X
Let's connect. Building giving teachers their night back.

Use 100+ free online calculators for math, chemistry, physics, loans, health, and AI costs—no signup needed.
u/averageChilean · Reddit
Built a free tool site to help my brother study — now has 100+ tools, would love feedback My brother's in high school and needed something more visual to study chemistry, physics, and math, so I used Claude to build him a simple site with interactive calculators and visualizers. I'm not a programmer or from a tech background, so without AI this wouldn't have happened, at least not this fast. It ended up helping him a lot more than I expected, so I kept expanding it, added a bunch of other

Participate in community predictions; let time verify your guesses and track your rank.
geniushui · V2EX
我的第 4 个 Vibe coding 项目——猜一猜 网址: https://cai1cai.com/ 猜一猜,让时间验证你的判断 花了 2 天时间整出来的,请各位大佬给点建议!

Claim, own, and trade your piece of a shared digital grid.
@nitindotdev · X
Hey! I’m launching something called — a digital billboard for startups, builders and creators.

Share the vinyl records you're spinning and see what other collectors are playing.
geekamongus · HN
I collect records and I build apps in my spare time (and listen to records while I build apps), and this is what happens when those two things run into each other. Many people post photos of what they have spinning on their turntables on social media, and most never get any engagement. It occurred to me that people might want a better way to do this, and bringing them together in a niche social site might help. So I made Wax Spinner. Connect your Discogs (the de-facto vinyl collector's catalogue) account, post whatever you're playing with an optional note, and it lands in a feed where people can like it and comment. You can also browse anyone's full collection on their profile, and filter the feed by genre, pulled straight from Discogs metadata. The conversation and the discovery are the primary purpose. The details this crowd might find interesting: every spin generates its own OpenGraph share card on the fly, with cover art, artist, year, and notes rendered server-side and cached

See Truacta on live warehouse data — ask your revenue in plain English and get a board-grade answer, every figure cited to its SQL. Launch the live demo instantly — one code by ema
@truacta · X
Building Truacta — an AI revenue analyst that reconciles your ARR across CRM, billing, and the GL into one cited number. Plain-English question in, exact SQL out. Read-only, no data team.

Share what you're working on. Get honest feedback from builders and potential users. Get inspired by the ecosystem.
@AlexOffScript · X
Niceee. If you want to share it with other builders, get your first users, collect feedback, and test it out, we’ve just launched a platform for exactly that. We literally just went live.

Turn your résumé into an evidence-first portfolio with AI-guided suggestions for improvement.
@Showcase_app1 · X
Building Showcase: turns a résumé into an editable, evidence-first portfolio for final-year students and new grads. AI-assisted drafts, nothing invented. Build/edit/preview free; live publishing is Pro.