Life & fun · alternatives · 2026
24 alternatives to Tetris in a PDF
I realized that the PDF engines of modern desktop browsers (PDFium and PDF.js) support JavaScript with enough I/O primitives to make a basic game like Tetris. It was a bit tricky to find a union of features that work in both engines, but in the end it turns out that showing/hiding annotation "fields" works well to make monochrome pixels, and keyboard input can be achieved by typing in a text input box. All in all it's quite janky but a nice reminder of how general purpose PDF scripting can be. The linked PDF is all ASCII so you can just open it in a text editor, or have a look at…
Tetris in a PDF is a playable implementation of Tetris built entirely within a PDF file using JavaScript supported by modern browser PDF engines. It works by using annotation fields to create monochrome pixels and a… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1D1
I made a Doom source port that runs within a PDF file. I was inspired by the recent HN post about Tetris in a PDF (https://news.ycombinator.com/item?id=42645218) and I wondered if I could get Doom to run using a similar method. It turns out that old versions of Emscripten can compile C to asm.js code that will happily run inside the limited JS runtime of the PDF engine. I used the doomgeneric (https://github.com/ozkl/doomgeneric) fork of the original Doom source, as that made writing the IO fairly easy. All I had to do was implement a framebuffer and…
2025 · doompdf.pages.dev · its alternatives →
- 2IG
2014 · shaunlebron.com · its alternatives →
- 3
Contribute to jstimpfle/tetris-on-a-plane development by creating an account on GitHub.
2016 · github.com · its alternatives →
- 4PJ
Hi HN, Nick here. We're super excited to officially launch PDF.js Express [1]. PDF.js Express wraps a modern React UI around the PDF.js rendering engine to enable PDF annotation, form filling, and signing inside your web app. We've also made some improvements to PDF.js text search, and taken a different approach to how the viewer uses the PDF.js rendering API, resulting in sharp graphics at any zoom magnification [2]. Based on our research, more than 70% of those who try to implement these features on top of PDF.js find it too difficult or time-intensive [3]. For those who are successful,…
2020 · its alternatives →
- 5TB
OFRAK Tetris is a project I started at work about two weeks ago. It's a web-based game that works on desktop and mobile. I made it for my company to bring to events like DEF CON, and to promote our binary analysis and patching framework called OFRAK. In the game, 32-bit, little-endian ARM assembly instructions fall, and you can modify the operands before executing them on a CPU emulator. There are two segments mapped – one for instructions, and one for data (though both have read, write, and execute permissions). Your score is a four byte signed integer stored at the virtual address pointed…
2023 · ofrak.com · its alternatives →
- 6TI
2019 · djblue.github.io · its alternatives →
- 7
Implement scanyourpdf.com in JavaScript. No backend servers needed.
2022 · lookscanned.io · its alternatives →
- 8
I built EmbedPDF: an MIT-licensed, open-source PDF viewer that aims to match all of Adobe Acrobat’s paid features… for free. Already working: - Annotations (highlight, sticky notes, free text, ink) - True redaction (content actually removed) - Search, text selection, zoom, rotation - Runs fully in the browser, no server needed - Drop-in SDK for React, Vue, Preact, vanilla JS Why? Acrobat is heavy, closed, and pricey. I wanted something lightweight, hackable, and embeddable anywhere. Demo: https://app.embedpdf.com/ Website: https://www.embedpdf.com/ GitHub:…
2025 · github.com · its alternatives →
- 9
Built a quick version of Tetris. Contribute to sacert/Quick-Tetris development by creating an account on GitHub.
2016 · github.com · its alternatives →
- 10AT
2018 · tetris.joshbassett.info · its alternatives →
- 11
Using SQL's Turing Completeness to Build Tetris. Contribute to nuno-faria/tetris-sql development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 12
Render 3D models (OBJ, glTF, GLB, STL, .vox) as ASCII art — in the browser, in React or Vue, or straight in your terminal. A three.js-style API with no WebGL and no canvas: just text in a single <pre>.
Jun 2026 · glyphcss.com · its alternatives →
- 13
PDFShift▲386Convert any HTML to PDF with a single POST request.
2018 · pdfshift.io · its alternatives →
- 14PT
Hi, OP here. A friend was involved in a custody battle and was afraid his ex was going to leak all of his discovery documents on the internet and he asked if there was something I could do to make it harder for bots/crawlers to find sensitive information. Originally I was going to turn all of his docs to image based PDFs, but those get large fast and are easy to OCR. So I found a post musing about altering fonts/glyphs so that it looks like english, but the actual character being seen by the pdf reader is a non-english character. As such, when you try to OCR these files, it doesn't…
2022 · humaneyesonly.com · its alternatives →
- 15
Hi, I've just finished a rebuild of this function and added a lot of new features: info, page index, minimap, inverted index,... I think it may be useful for inspection, debugging or just as a learning resource showcasing the PDF file format. This is a pet project and I would be happy to receive some feedback! Regards
2025 · github.com · its alternatives →
- 16
My keyboard fell apart. Now it's your problem.
Jun 2026 · its alternatives →
- 17TB
I was playing around with a vanilla JavaScript Tetris implementation someone posted, tetris-on-a-plane, learning and recreating it from scratch to sharpen my JavaScript skills. I thought it would also be fun to sharpen up my React skills a little. So I re-implemented Tetris on a Plane in React. I found it really helpful to see a vanilla js app, and then the same thing broken into components and implemented in React, maybe you will too! Regardless, I learned a lot re-implementing it. React Tetris Source: https://github.com/a12k/react-tetris Tetris on a Plane Source:…
2017 · its alternatives →
- 18
Hi HN, I'm a film director by trade, and I prefer writing my stories in plain text rather than using clunky screenplay software. Standard markup like Fountain doesn't work for me because I write in mixed languages, so I use Markdown with a custom syntax I invented to resemble standard screenplay structures. This workflow is great until I need to actually generate an industry-standard screenplay PDF. I got tired of manually copying and pasting my text back into the clunky software just to export it, so I decided to write a script to automate the process. That's when I hit a wall. I tried…
Mar 2026 · github.com · its alternatives →
- 19
🤖 A Node queue API for generating PDFs using headless Chrome. Comes with a CLI, S3 storage and webhooks for notifying subscribers about generated PDFs - esbenp/pdf-bot
2017 · github.com · its alternatives →
- 20
Tetris html▲12Tetris built with pure HTML, CSS, and JavaScript
2025 · github.com · its alternatives →
- 21IM
I've posted this game here before, hopefully a repost is fine as the game has changed quite a bit (improved AI, improved mapeditor, much quicker gameplay, etc). Game is based on JavaScript/Canvas and WebSockets. On the browser side the map is pre-rendered (as a background image), just the mobile units/buildings and animations are dynamically rendered. The lobby server is made in node.js, but the game server is C++ for performance reasons (mainly the pathfinding). I found the C++ WebSocket libraries out there to be too difficult to use so I made my own based on the rfc. Overall I…
2022 · battle-of-flags.com · its alternatives →
- 22
Loads a web page in headless Chrome using Puppeteer and prints it to PDF. The input is a JSON object and output is a PDF file.
2017 · apify.com · its alternatives →
- 23
- 24
Play Tetris in CLI. Contribute to ha-shine/tetrust development by creating an account on GitHub.
2020 · github.com · its alternatives →
Also compare
- Doom (1993) in a PDF alternatives
- Interactive guide to Tetris in ClojureScript alternatives
- Simple JavaScript Tetris alternatives
- Pdf.js Express – PDF annotation, e-signatures, and form filling alternatives
- Tetris, but the blocks are ARM instructions that execute in the browser alternatives
- Tetris Implemented in ClojureScript alternatives
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 →