ExcelDojo

What it does

Most Excel courses teach you to watch. ExcelDojo makes you type. 90+ formulas. Each one has a live editable spreadsheet — type the formula, press run, get instant feedback. One HTML file. Works offline. No install, no account, no subscription. Includes game mode with XP, free-play lab, cheat sheet, and shortcuts reference. Built for anyone who has Googled the same formula twice and still cannot remember it.

• AV
  A virtual machine made with Google Sheets formulas (no script)2017 · ▲620

  In a popular post today[1] the title claims "VM in Google Sheets", but it's actually in Google Script, which is basically Javascript and not an interesting technical accomplishment (definitely a useful educational tool, though). Disappointed, I set out to fix it. Voila! https://docs.google.com/spreadsheets/d/1g3-FZBnkDuLqFYOmk457... A Brainfk interpreter in pure Google Sheets formulas. The hard part was parentheses matching, so I think other VMs would be even easier. [1] https://news.ycombinator.com/item?id=14701460

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  Sheet0Nov 2025 · ▲151

  YOLO mode comes to spreadsheets

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  ManyExcel2024 · ▲197

  Convert your text into spreadsheet formulas with AI

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  Formula Dog2022 · ▲85

  Generate Excel formulas with AI

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  Jeeves2023 · ▲88

  Ask questions, get answers, without spreadsheet formulas

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  QuickSheet v1.2 May 2026 · apps.apple.com · ▲83

  Instantly create and edit spreadsheets from your menu bar

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  Clipto MCP▲640

  Let agents source clips from terabytes of your local video

  Work · 18d ago · clipto.com

• 
  HyNote for Mac▲383

  Free local transcription that is 100% Private

  Work · 17d ago · hynote.ai

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  VoiceOS App Store▲330

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  Work · 28d ago · voiceos.com

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  Scrimba Explain▲325

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  Work · 24d ago · scrimba.com

• 
  CleanShot 5.0 with Studio Mode▲278

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  Work · 5d ago · cleanshot.com

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  Brew ▲905

  Like Claude design for email marketing

  AI · May 2026 · brew.new

• 
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  Parallel agents, diff reviewer, and multi-model comparisons

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  StoreClaw▲805

  Grow your store profits with agents that know how to sell

  AI · May 2026 · storeclaw.ai

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  PollyReach▲796

  Give your agent a real number and voice to make calls.

  AI · May 2026 · pollyreach.ai

• NW
  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

• FM
  Files.md – Open-source alternative to Obsidian▲730

  Dev tools · May 2026 · github.com