Life & fun · alternatives · 2026
24 alternatives to Prime Number Grid Visualizer
Hello HN, I made this simple notepad for writing down whatever comes to mind. The goal is to force you to not get hung up on what you’ve already written. There’s no formatting, you can’t edit what you’ve typed, you can’t select text or move your caret around. There’s no backspace, delete, undo/redo, or paste. You can’t even see any words except the one you’re currently typing, and when you’re done with it, it fades away. The text is all still there, just invisible. You can save everything you’ve written as a .txt if you want, or just empty your thoughts and let them disappear forever.…
Prime Number Grid Visualizer is a tool that creates customizable grids by accepting user-defined rows and columns, then populates and displays them with prime numbers. It serves as a simple utility for visualizing… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
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Visualization of density of prime numbers of different types.
2017 · prime-numbers.info · its alternatives →
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I launched NumPad v1 on here a few years ago, and back then it wasn't much more than a thin CodeMirror wrapper around the calculator engine I'd written. Now I've rewritten it as a PWA that supports multiple documents, persists them to IndexedDB, and has a syncing service for paying customers. Syncing is handled by Automerge[1] under the hood, which should make it relatively easy to get document sharing working too. [1] https://automerge.org/
2022 · numpad.io · its alternatives →
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2022 · ffmpeg.guide · its alternatives →
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Write down your algorithm to be visualized
2016 · jasonpark.me · its alternatives →
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ADS-B visualizer▲339I've created a web app for querying and visualization of ADS-B datasets: https://adsb.exposed/ Source code: https://github.com/ClickHouse/adsb.exposed/ The results significantly exceeded my expectations because the pictures are insanely beautiful, and the data is a treasure trove. It proves many statements that were not certain: - it is feasible to generate tiles by aggregation on a pixel level (instead of hexagons or rectangular grid); - it does not require JPG/PNG tiles - we can transfer raw bitmap data with zstd compression; - it is possible to…
2024 · adsb.exposed · its alternatives →
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Hi HN! I've found this visualization tool immensely helpful over the years for getting an intuition for how an LLM "sees" some piece of text, and with a bit of elbow grease decided to move all compute to client side so I could make it publicly available. I've found it particularly useful for - Understanding exactly how repetition and patterns affect a small LM's ability to predict correctly - Understanding different tokenization patterns and how it affects model output - Getting a general sense of how "hard" different prediction tasks are for GPT-style models Known problems (that I probably…
2023 · perplexity.vercel.app · its alternatives →
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LayoutIt! offers easy frontend tools: Bootstrap builder, CSS Grid generator, VoxCSS voxel engine, tokens, terrains, SVG tools and more to kick-start your UI development.
2018 · layoutit.com · its alternatives →
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Online WYSIWYG Mathematics Editor (Equation Editor), fast and powerful Editing features, inputting Normal text, Math symbols, and drawing Graph/Diagram in one single editor, help writing Math Document much easier. Export to Latex, Tikz, SVG, or Image (PNG).
2017 · mathcha.io · its alternatives →
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Writing is a lightweight distraction-free text editor, in the browser (Markdown and LaTeX supported). - josephernest/writing
2017 · github.com · its alternatives →
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A flamegraph generator for Postgres EXPLAIN ANALYZE output. - mgartner/pg_flame
2019 · github.com · its alternatives →
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Grid Note▲130A smart way to note with structured layouts 📝
2018 · apps.apple.com · its alternatives →
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Edit: Thank you so much for taking a look at Seen! Yes, I know, it's really slow. And scrolling does not render notes instantly. And the title is a bit clickbait-y. I'll try my best to improve on it though. This is just a preview, the most basic version of Seen, and it's getting there. But, oh God, I almost got a heart attack when I opened up Vercel Analytics and saw ~1,500 page views, up from 10 or 12. Thank you again! It's such a weird experience showing something to the world for the first time as a 16-year-old and seeing so many people look at it. Hello HN! I've been working on creating…
2025 · seen-v2.vercel.app · its alternatives →
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A python library to artfully visualize Factorio Blueprints and an interactive web demo for using it. - piebro/factorio-blueprint-visualizer
2021 · github.com · its alternatives →
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Creating data visualizations with AI nowadays often means chat, chat and more chats...and writing long prompts can be annoying while they are also not the most effective way to describe your visualization designs. Data Formulator blends UI interaction with natural language so that you can create visualizations with AI much more effectively! You can: * create rich visualizations beyond initial datasets, where AI helps transforming and visualizing data along the way * iterate your designs and dive deeper using data threads, a new way to manage your conversation with AI. Here is a demo video:…
2024 · github.com · its alternatives →
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A Sketch plugin for making grids easily
2018 · github.com · its alternatives →
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Systemizer is a system design tool that allows you to simulate systems. Create and simulate your system with many customizable components.
2021 · honzaap.github.io · its alternatives →
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Previagram▲120Preview your ideal photo grid and create mosaics for free
2019 · pallyy.com · its alternatives →
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2022 · code.sgo.to · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →