impeccify.com

40+ free calculators and developer tools - no signup needed

What it does

We built a collection of 40+ free online tools. CSS converters, nutrition calculators, math tools, construction estimators, fitness calculators, and developer utilities. Every tool is free with no signup, no ads, and no tracking. Each page loads in under 1 second. Built with Next.js, React, and Tailwind CSS. All tools are statically generated for instant loading. We are a small web design studio that builds these tools for fun and to help people. Check them out at impeccify.com/tools

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More dev tools this month

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Dograh▲592
The open source VAPI alternative
Dev tools · 25d ago · dograh.com
Meridian▲530
Don't let your work go unnoticed. Get promoted!
Dev tools · 20d ago · meridiona.com
x1▲516
Lovable for iPhone apps go from idea to App Store
Dev tools · 11d ago · x1.new
Computable GPU Index (CGI)▲424
The first open-source price index for GPU compute
Dev tools · 10d ago · getcomputable.com
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
The GTM Co-Founder▲402
Open-source GTM skills for technical founders
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Launched alongside, April 2026

the whole month →

Brila▲1,367
One-page websites from real Google Maps reviews
AI · Apr 2026 · brila.ai
AG
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
IB
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
Fathom 3.0▲803
AI meeting notes: now bot-free, in ChatGPT & Claude + more
AI · Apr 2026 · fathom.ai
BC
Brutalist Concrete Laptop Stand (2024)▲786
Life & fun · Apr 2026 · sam-burns.com
IB
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