CheatGrid

What it does

CheatGrid is a structured cheat sheet platform for developers and engineers. Every topic uses consistent 3-column tables (concept → example → description), ordered by real-world importance — scan to the right answer in seconds. 1300+ topics cover programming, cloud, AI, DevOps, databases, and certifications. Includes practice tests with XP tracking, interactive Mind Maps, AI chatbot, and My Vault. Free cheat sheets available without an account.

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  CheatSheet AI2024 · mylens.ai · ▲398

  Create a cheatsheet for anything, fast

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  AnswerGrid (YC S24)2024 · kenley.ai · ▲296

  Scale your lead qualification with AI agents

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  AI Cheatsheet2018 · aicheatsheet.comuzi.xyz · ▲190

  A tool to help you ace AI basics

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  The Only Cheatsheets2025 · malharchauhan7.github.io · ▲8

  Collection of developer cheatsheets

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  Cheat Sheets Dev2020 · cheatsheets.dev · ▲149

  Community built to share popular programming snippets.

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  Practice.dev2020 · ▲196

  Learn programming for free.

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  /dev/null▲490

  a social network for devs

  Dev tools · 4d 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 · 24d 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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  Run full iOS 16.5 firmware on Android Devices▲344

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

  Dev tools · 12h ago · github.com

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  Fundraisly▲1,537

  AI fundraising agent that finds investors and books meetings

  AI · Jun 2026 · fundraisly.com

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  Homebrew 6.0.0▲1,481

  Today, I’m proud to announce Homebrew 6.0.0. The most significant changes since 5.1.0 are a new tap trust security mechanism, the new faster, smaller, default internal Homebrew JSON API, sandboxing on Linux, better defaults informed by our user survey, many brew bundle improvements, improved performance and initial support for macOS 27 (Golden Gate). Happy to discuss any questions here!

  Dev tools · Jun 2026 · brew.sh

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  Performative-UI – A react component library of design tropes▲1,181

  Hi HN! I was super frustrated at apps like tiktok and wechat preventing me from saving or downloading the animated gifs, so I made a little tool to turn a screen recording into a slack-sized emoji. Hope you get some value from this!

  Life & fun · Jun 2026 · vorpus.github.io

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  Upstream▲976

  The inbox designed for humans and agents

  AI · Jun 2026 · upstream.do

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  Goldfish▲958

  Press Option. It knows your work and replies like you

  AI · Jun 2026 · goldfish.sh

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  I made Google Trends for Hacker News by indexing 18 years of comments▲822

  Search 18 years of Hacker News and chart how any topic, tool, or person trended. Overlay terms to compare their rise and fall across 45M posts and comments.

  Life & fun · Jun 2026 · hackernewstrends.com