CalcBin

What it does

CalcBin offers 184 free online calculators, converters, and generators—no signup, no cookies, no BS. From BMI calculators to currency converters, from QR code generators to image compressors, we built the tools we needed for everyday tasks. Fast, privacy-focused, mobile-friendly. Ad-free. Built by developers, for everyone.

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  ToolSunny27d ago · toolsunny.com · ▲2

  Free calculators, converters, generators and templates

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  I vibecoded 177 tools for my own use (CalcBin)Feb 2026 · calcbin.com · ▲15

  Hey HN! I've been building random tools whenever I needed them over the past few months, and now I have 177 of them. Started because I was tired of sketchy converter sites with 10 ads, so I just... made my own. Some highlights for the dev crowd: Developer tools: - UUID Generator (v1/v4/v7, bulk generation): https://calcbin.com/tools/uuid-generator - JWT Generator & Decoder: https://calcbin.com/tools/jwt-generator - JSON Formatter/Validator: https://calcbin.com/tools/json-formatter - Cron Expression Generator (with…

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  CanYouCalculateMay 2026 · canyoucalculate.com · ▲4

  Free Online Calculators & Converters

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  calculator toolsJun 2026 · ▲2

  Free online calculators for everyday use

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  Snap Tool SuiteJun 2026 · snaptoolsuite.com · ▲3

  300+ free calculators & tools — no signup, no paywall

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  CalcverJul 2026 · calcver.com · ▲5

  21 free converters, calculators & generators, no ads

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  Dograh▲592

  The open source VAPI alternative

  Dev tools · 25d ago · dograh.com

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  Meridian▲530

  Don't let your work go unnoticed. Get promoted!

  Dev tools · 20d ago · meridiona.com

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  x1▲516

  Lovable for iPhone apps go from idea to App Store

  Dev tools · 11d ago · x1.new

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  Computable GPU Index (CGI)▲424

  The first open-source price index for GPU compute

  Dev tools · 10d ago · getcomputable.com

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  Open-Source eInk Bike Computer▲403

  OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.

  Dev tools · 2d ago · opentrailpaper.com

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  The GTM Co-Founder▲402

  Open-source GTM skills for technical founders

  Dev tools · 29d ago · gtmcofounder.com

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  Lightfield▲891

  AI-native CRM that builds itself and does work for you

  AI · Mar 2026 · lightfield.app

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  Tobira.ai▲730

  A network where AI agents find deals for their humans

  AI · Mar 2026 · tobira.ai

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  Claude Import Memory▲725

  Switch from ChatGPT to Claude with import memory feature

  AI · Mar 2026 · claude.com

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  Littlebird▲712

  The AI assistant that already knows your work

  AI · Mar 2026 · littlebird.ai

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  Viktor.com▲701

  Your AI Coworker that proactively executes tasks

  AI · Mar 2026 · viktor.com

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  Jupid▲664

  File your taxes with Claude Code

  Commerce · Mar 2026 · jupid.com