CalcHub

What it does

The only calculator site with dark mode, voice input, compare mode, and offline support. 32 calculators (EMI, SIP, tax, BMI, calorie, scientific & more) with 37-currency auto-detect. Works worldwide. Share calculations via URL. 100% free, no signup.

Free online calculators for EMI, SIP, compound interest, mortgage, GST, income tax, BMI, percentage, and more. Beautiful charts, downloadable PDF results. No signup.

Your loan EMI. Your retirement corpus. Your tax liability. Beautiful charts, instant results — no signup, no limits, free forever. Calculate Equated Monthly Installments for home loan, car loan, or personal loan. See monthly payments, total interest, and full amortization schedule with interactive charts. Free, no signup. Calculate returns on Systematic Investment Plan (SIP) in mutual funds. See how your monthly investment grows over 5, 10, 20 years with compound returns and interactive growth charts. Calculate compound interest with annual, monthly, quarterly, or daily compounding. Visualize investment growth over time with interactive charts. Free compound interest calculator online.…from thecalchub.org

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  ToolHavenMay 2026 · tool-haven.com · ▲6

  180+ free calculators, tools — EMI, BMI, GST, games & more

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  AllCalcify2025 · ▲12

  Health & finance calculator suite

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  Free Online Tools2025 · minitools4u.com · ▲14

  Hi HN! I built ToolDexo - a collection of 29 free online tools because I was tired of websites that force you to sign up just to use a calculator or word counter. What's included: - Calculators: BMI, calorie, mortgage, loan, tax, grade, tip, percentage, age, compound interest - Converters: Currency (36 currencies with live rates), unit, timezone, file size - Generators: Password, QR code, favicon, color picker, Lorem Ipsum, random number - Text tools: Word counter, case converter, character counter, text compare, Markdown editor - Dev tools: JSON formatter, Base64 encoder/decoder Tech…

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  Forgeo2025 · forgeo.xyz · ▲11

  Free online tools/generators/detectors/code

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  Calculator JunctionMay 2026 · calculatorjunction.com · ▲2

  Finance, health, math, unit converters & more — free tools.

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  ALL FREE CALCULATORSJun 2026 · allfreecalculators.com · ▲2

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  /dev/null▲490

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  Dev tools · 4d ago · dev-null.sh

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  Dev tools · 28d ago · github.com

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  Dev tools · 27d ago · github.com

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  Dev tools · 24d ago · openbot.run

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  Run full iOS 16.5 firmware on Android Devices▲361

  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 14h ago · github.com

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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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  Brila▲1,364

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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

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  Brutalist Concrete Laptop Stand (2024)▲786

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  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