Calcosy

What it does

Calcosy is a free calculator hub with 175+ tools for math, finance, health, home improvement, pets, statistics, and everyday life. No account. No email. Just calculate. Covers everything from mortgage and BMI to roofing costs, chocolate toxicity for dogs, confidence intervals, and circle skirt fabric. Every calculator includes a plain-English explanation so you understand the result, not just the number.

186 free online calculators for math, finance, health, physics and everyday life. No sign-up required.

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  CalcoolyJul 2026 · calcooly.com · ▲1

  Free online calculators that just work — no signup

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  CalculatorCoveJun 2026 · calculatorcove.com · ▲2

  700+ free calculators — finance, legal, health & more

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  Calcfind2025 · ▲7

  Free online calculator for math, health, finance & more

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  CalcNest — Free Online CalculatorsMay 2026 · calcnest.org · ▲2

  100+ free calculators for health, finance, gaming & more

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  CalcRangeJul 2026 · calcrange.com · ▲5

  Free calculators for finance, health, study and life

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  CalculifyJun 2026 · calculify.ravistack.tech · ▲2

  Every calculation you need — one place, always free.

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  Brila▲1,364

  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

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  A game where you build a GPU▲964

  Thought the resources for GPU arch were lacking, so here we are

  Life & fun · Apr 2026 · jaso1024.com

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  I built a tiny LLM to demystify how language models work▲915

  Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

  AI · Apr 2026 · github.com

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  Fathom 3.0▲800

  AI meeting notes: now bot-free, in ChatGPT & Claude + more

  AI · Apr 2026 · fathom.ai

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  Brutalist Concrete Laptop Stand (2024)▲786

  I made a laptop stand out of solid concrete, in the style of brutalist architecture, with themes of urbex and urban decay

  Life & fun · Apr 2026 · sam-burns.com

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  I built a frontpage for personal blogs▲783

  With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

  AI · Apr 2026 · text.blogosphere.app