Show HN: I built a credit-based system API https://bit.ly/4gOZi3T

Show HN: I built a credit-based system API Hey HN! I'm a solo developer who's been building web apps for the past two years. I kept seeing other devs struggle with clunky credit systems for usage-based pricing. So, I decided to build Creduse: a robust API that makes integrating usage-based pricing into your web app very easy. It records every credit-related action as an immutable transaction in a ledger (nope, no blockchain involved), so you don't have to worry about data integrity or complex accounting. Is this something you'd find useful for your projects? What features would make it even better for your projects? https://bit.ly/4gOZjot January 17, 2025 at 11:16AM

Show HN: Another ELF Analysis Toolkit https://bit.ly/3PFunv6

Show HN: Another ELF Analysis Toolkit Nyxelf simplifies static and dynamic analysis of ELF binaries, enabling you to extract valuable insights effortlessly. And can be used for vulnerability assessments, unpacking, syscall tracing, and memory analysis. https://bit.ly/3EarCPB January 14, 2025 at 09:33AM

Show HN: Javaistic: Master Java Programming Quickly and Easily https://bit.ly/3E0pMRy

Show HN: Javaistic: Master Java Programming Quickly and Easily Hello HN community, I'm excited to introduce Javaistic, an open-source platform designed to simplify and accelerate your journey in learning Java programming. Whether you're a beginner or looking to deepen your understanding, Javaistic offers a comprehensive and user-friendly experience. Key Features: Comprehensive Content: Explore a wide range of topics, from basic concepts to advanced subjects like arrays, strings, 2D arrays, recursion, and matrices. Beautiful Design: Enjoy a visually appealing and optimized learning environment that enhances your educational experience. Ad-Free Learning: Focus on your studies without distractions, as Javaistic is completely ad-free. Open Source: Join our community on GitHub to contribute, suggest improvements, or report issues. About the Creator: Javaistic is developed and maintained by me (Arghya Ghosh), a passionate full-stack developer from India. Get Started: Visit Javaistic to begin your Java learning journey today. We welcome your feedback and contributions to help us improve and expand the platform. Happy coding! https://bit.ly/3DZRA8u January 16, 2025 at 11:28PM

Show HN: I made an open source directory of where to showoff your projects https://bit.ly/3DShdrK

Show HN: I made an open source directory of where to showoff your projects I made an open source directory for sharing projects Ever wondered how to show off that something you just built? Look no further! Awesome Launch is meant to be a list of communities and forums you can share your projects to get feedback or your first users. Anyone is free to contribute sites and resources. Hope you enjoy! https://bit.ly/4jlxFks January 16, 2025 at 02:23PM

Show HN: I made MP3 editing software based on a custom DSL https://bit.ly/4fZTfrW

Show HN: I made MP3 editing software based on a custom DSL This is MP3 editing software for .NET, built around a custom DSL called CJM, which integrates features of CUE, M3U, and SQL. CJM extracts specific sections from multiple files, combines them, and performs playback or export seamlessly. https://bit.ly/40A0mCU January 16, 2025 at 02:32PM

Show HN: Genious.name – AI Domain Generator That Checks Availability https://bit.ly/4h8Lb9y

Show HN: Genious.name – AI Domain Generator That Checks Availability https://bit.ly/4g8KY5i January 16, 2025 at 11:45AM

Show HN: Django ActivityPub Toolkit. Application-Agnostic AP Server https://bit.ly/40lDUvU

Show HN: Django ActivityPub Toolkit. Application-Agnostic AP Server https://bit.ly/3CnyWXA January 16, 2025 at 01:58AM

Show HN: Open-Source Document Extraction Tool https://bit.ly/3CbROsG

Show HN: Open-Source Document Extraction Tool Hi, I'm building an open-source self-hostable document extraction tool powered by LLM. There are popular data extraction tools and OCR tools in the market. None of them are open source. Most accounting firms, law firms, insurance, back office, and real-estate folks would like to use a tool like this. You can add PDF documents, Images, and audio files and create columns to answer questions on documents or extract information into tabular format. Access to repo: https://bit.ly/4gUTxl5 Screenshots: https://bit.ly/4heCnyS... Sample use-case: You can upload your invoices or receipts, create custom columns, and click Start Run. The data would be automatically extracted. https://bit.ly/4gUTxl5 January 15, 2025 at 04:05AM

Show HN: Pyper – Concurrent Python Made Simple https://bit.ly/3WiRtvg

Show HN: Pyper – Concurrent Python Made Simple Hello and happy new year! We're excited to introduce the Pyper package for concurrency & parallelism in Python. Pyper is a flexible framework for concurrent / parallel data processing, following the functional paradigm. Source code can be found on [github]( https://bit.ly/4fZQneT ) Key features: Intuitive API: Easy to learn, easy to think about. Implements clean abstractions to seamlessly unify threaded, multiprocessed, and asynchronous work. Functional Paradigm: Python functions are the building blocks of data pipelines. Let's you write clean, reusable code naturally. Safety: Hides the heavy lifting of underlying task execution and resource clean-up. No more worrying about race conditions, memory leaks, or thread-level error handling. Efficiency: Designed from the ground up for lazy execution, using queues, workers, and generators. Pure Python: Lightweight, with zero sub-dependencies. We'd love to hear any feedback on this project! https://bit.ly/4fZQneT January 12, 2025 at 02:05PM

Show HN: Simplex: Automate browser workflows using code and natural language https://bit.ly/3WnpASz

Show HN: Simplex: Automate browser workflows using code and natural language Simplex is an SDK that provides low-level functions you can use to create reliable web automations using code and natural language. Here's a quick video to show you how it works: https://bit.ly/40dfXal A couple weeks ago, we needed a way to automatically find 3D assets from the internet for one of our work contracts. We didn’t need an AI to choose all the steps for us autonomously — we knew generally what the flow to find items should be and just needed some intelligence to handle different webpage formats. Playwright couldn’t easily generalize to the different sites we wanted to search over and Claude computer use was tough to use — it was slow, expensive, struggled to click on the correct web elements, and there was no way to correct its actions if it failed at step 20 of our workflow. So we built a vision-based solution using vision language models that sits on top of Playwright. In our SDK, building a function that can universally search websites is as easy as this: from simplex import Simplex simplex = Simplex(api_key="api_key") def search(website, search_query): simplex.goto(website) simplex.click("the search bar") simplex.type(search_query) simplex.press_enter() search("mit.edu", "alyssa p hacker") You can play around with what we’ve built and see a few more examples at https://bit.ly/3WlkS7P . We'd love feedback! https://bit.ly/4j9LtPb January 14, 2025 at 10:30PM

Show HN: Blinkenlights. Bling up your server rack like its 1974 https://bit.ly/4hcZABq

Show HN: Blinkenlights. Bling up your server rack like its 1974 Got a boring server rack? Got a retro-computer project? Need some bling?? If you have a little electronics skill then you may want to make a few of these babies to let your server rack party like a 1970's mainframe. Just a fun little project done over a couple of days at XMAS, and probably best not to install in the corporate server room! https://bit.ly/4g11rID January 12, 2025 at 10:39AM

Show HN: Practise PyTorch in LeetCode Style https://bit.ly/4jeNHwA

Show HN: Practise PyTorch in LeetCode Style https://bit.ly/40fsHx1 January 14, 2025 at 05:21AM

Show HN: A complete e-commerce website builder to build ecom stores in minutes https://bit.ly/3WjpwmK

Show HN: A complete e-commerce website builder to build ecom stores in minutes StoreLauncher is a professional Shopify store builder primarily designed for newbies who struggle to create a professional-looking Shopify store. All you have to do is follow a few simple steps to have your store built in literally minutes. There are 8 niches to choose from, each filled with numerous products in our database. The product pages are highly descriptive and unique, as we use AI API to generate product information. Each product gets a dedicated product page template. A logo is also generated using one of 100 premium fonts and published on the store. StoreLauncher creates a professional, clean homepage filled with collections and featured products, as well as image-with-text sections. All essential pages are also created and published to your store. The header and footer navigation are automatically generated and assigned to the appropriate pages and products. Try it for yourself, it's completely free! https://bit.ly/4jdtZBq January 13, 2025 at 10:41PM

Show HN: chDB 3.0 released, 12% faster than DuckDB https://bit.ly/40su7pf

Show HN: chDB 3.0 released, 12% faster than DuckDB https://bit.ly/4gOUvj5 January 14, 2025 at 05:33AM

Show HN: Python with do..end in place of strict indentation https://bit.ly/429tUbJ

Show HN: Python with do..end in place of strict indentation https://bit.ly/4h7EyVn January 10, 2025 at 02:53PM

Show HN: JUring – Java bindings for io_uring file I/O https://bit.ly/4hdkAbi

Show HN: JUring – Java bindings for io_uring file I/O Hi HN! For the past few weeks, I've been working on bringing io_uring to Java. It started as an experiment, but slowly it became more than just that, and now trying to turn it into a proper library. After hearing talks about virtual threads and io_urings performance I wanted to build something that was faster than Java provides out of the box. I ended up creating two APIs: - A direct one that closely mirrors io_uring's behavior - A blocking one built with Virtual Threads in mind for remote files. This is the link to the project if you are interested https://bit.ly/3WiBf57 It's still far from done, but it's running! Would love to hear your thoughts if you've worked on or used something similar. Also very curious to hear what you like and don't like about the project! https://bit.ly/3WiBf57 January 13, 2025 at 11:06AM

Show HN: WhatsApp Bulk Messager Chrome Extension https://bit.ly/3Wig43f

Show HN: WhatsApp Bulk Messager Chrome Extension Whatsapp Web Bulk Messager Chrome Extension Upload Contact CSV (12 digit number without +) Draft the message Hit send The new way of Outbound WhatsApp marketing. Messages - Free Attachments - Lifetime for $20. Will be updated in next Version https://bit.ly/4gSf9yB January 13, 2025 at 08:08AM

Show HN: Bash-my-AWS adds `bmai

Show HN: Doom (1993) in a PDF https://bit.ly/4jeo1jO

Show HN: Doom (1993) in a PDF 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://bit.ly/3C5N8V9 ) 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://bit.ly/42u9iLN ) fork of the original Doom source, as that made writing the IO fairly easy. All I had to do was implement a framebuffer and keyboard inputs. Unlike previous interactive PDF demos, the output for DoomPDF is achieved by creating a text field for each row of pixels in the screen, then setting their contents to various ASCII characters. This gives me a 6 color monochrome display, that can be updated reasonably quickly (80ms per frame). The source code is available at: https://bit.ly/3WhAol4 Note that this PDF can only run in Chromium-based browsers that use the PDFium engine. https://bit.ly/4h9z4sE January 13, 2025 at 01:50AM

Show HN: Willpayforthis.com – Gathering posts about what people will pay for https://bit.ly/4hd45Mc

Show HN: Willpayforthis.com – Gathering posts about what people will pay for When people have a pain point they'd like solved, I find that many of them resort to posting a Tweet about it. I made these posts easy to find. https://bit.ly/3VSDI6c January 12, 2025 at 06:56AM