Calciverse: 700+ Calculators in One App

What it does

700+ professional-grade calculators for finance, real estate, investing, and engineering. Free, no sign-up, runs instantly in your browser. Calciverse brings useful calculators and converters for everyday life into one fast, thoughtfully designed app. Find the right tool, enter your numbers, and get a clear answer without searching the web, fighting cluttered interfaces, or downloading another single-purpose app.

600+ professional-grade calculators for finance, real estate, investing, and engineering. Free, no sign-up — runs instantly in your browser.

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  CalcVerseJul 2026 · thecalcverse.online · ▲3

  605 free calculators for finance, health, math & more

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  CalVerse — Free Financial CalculatorsMay 2026 · calverse.co · ▲3

  25+ free financial calculators. No login. Instant results.

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  Cool calculatorMar 2026 · play.google.com · ▲2

  One calculator for math, finance, units & style

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  ApexCalculatorsJul 2026 · ▲3

  150+ free calculators for finance, health, math & more

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  Calq.devNov 2025 · calq.dev · ▲7

  Free online calculators for everyday math and planning

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  MyCalculators.appJun 2026 · mycalculators.app · ▲4

  200+ free, ad-free calculators for finance, health & math

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  /dev/null▲490

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 29d ago · corespeed.io

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  An e-ink frame that hears birds and draws them as 1800s illustrations▲2,389

  E-ink bird frame for Raspberry Pi - real-time bird detection by audio, fully local AI, rendered as real, hand-cut 1800s bird illustrations. - arnegiacomo/fugleramme

  AI · Sep 2026 · github.com

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  What if the speed of light was 5 km/h?▲629

  Special relativity simulator in which light crawls along at a human speed, so Lorentz contraction, aberration and Doppler shift happen at walking pace.

  Life & fun · Sep 2026 · rivendell.dmitrybrant.com

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  Jev▲544

  Fast, structured AI decisions for software automation

  AI · Sep 2026 · console.typesafe.ai

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  ReSO AI▲510

  Get discovered & recommended when customers ask AI

  AI · Sep 2026 · resollm.ai

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  Kilo Code for iOS and Android▲498

  Start coding agents, control sessions, review PRs. Anywhere.

  Dev tools · Sep 2026 · kilo.ai

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  AINA▲497

  Find your job search blind spots with an AI coach

  AI · Sep 2026 · aina-tech.io