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Open Source

1. Diamond Audio City

At Diamond Audio City, we're dedicated to empowering audio professionals and enthusiasts with the precise tools they need for optimal sound system design. We understand the complexities involved in achieving flawless acoustic performance, and our platform, particularly our advanced speaker calculator, is engineered to simplify these challenges.Our mission is to provide an invaluable resource that goes beyond basic estimations. We focus on delivering granular control and detailed calculations, allowing users to accurately model speaker configurations, predict sound dispersion, and refine system parameters before physical installation. This meticulous approach saves significant time and resources, ensuring projects are completed with unparalleled sonic integrity.We continually refine our algorithms and integrate user feedback to maintain our position as a leading authority in audio system optimization. Explore the capabilities of our tools and see how Diamond Audio City can elevate your next project. For more information and to access our suite of calculators, visit diamondaudiocity.com.

Launch Platform Open Source

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2. LikeDo

LikeDo is an all-in-one productivity platform designed to streamline your digital operations by centralizing short links, custom emails, AI-powered content creation, file storage, and open APIs. With LikeDo, you can effortlessly manage your digital assets and enhance productivity through a single platform.

APIs & Integrations Open Source SaaS

3. Free Nano Banana Prompts

Banana Prompts — Free AI Art, Image & Video Prompt LibraryDiscover AI image prompts and AI video prompts that creators actually use on Nano Banana Pro, Sora 2 and Veo 3 models, so you can skip guesswork.AI prompt library & community galleryGenerate with tested prompts for images and video—see what works with Banana Prompts.Stop trial‑and‑error guessing. Banana Prompts collects AI image prompts and AI video prompts that shipped real projects, along with the exact text, order, and structure that made them work. Use them as practical starting points for your own workflows.

Design Tools Open Source Online Community

4. Open Wearables

Open-source, self-hosted health intelligence platform that unifies data from 200+ wearables into a single API. Built to democratize access to wearable data infrastructure that's typically locked behind enterprise contracts - deploy with docker-compose, own your data, no per-user fees.

Open Source Wearables Health Tech

5. Oglama

Oglama is a desktop application powered by an embedded LLM that lets you automate actions on the web.✅ Anonymous — runs fully on your machine, with logs stored locally✅ Private — your credentials, tokens, and login data never leave your device✅ Predictable — no metered billing, no feature gating✅ Transparent — every module includes fully editable source code✅ Deterministic — the LLM is used only for tasks that exceed the limits of conventional programming; everything else is straightforward JavaScript✅ Probably excessive for simple UI testing

Developer Tools Open Source Productivity

6. Ashdeck

Ashdeck is a free, open-source tool designed to help you stay focused by blocking distracting websites, using a Pomodoro timer for structured work sessions, and tracking your progress. It transforms your new tab into a personalized productivity hub, keeping you organized, motivated, and distraction-free.  Built by procrastinators for procrastinators, it’s a simple, no-frills tool to keep you on track without overwhelming features.

Open Source Productivity

7. Tailark

Tailark is a design and component toolkit built for teams who want to ship modern marketing websites faster. It provides a large collection of responsive, production-ready blocks built with shadcn/ui, Tailwind CSS, Next.js, and TypeScript. The components are fully open and editable, so they fit naturally into your codebase without introducing a new design system or locking you into fixed styling patterns.Tailark focuses on marketing UI: hero sections, pricing tables, feature grids, testimonials, footers, and full-page layouts designed to look polished out of the box and easy to customize. Every block is optimized for conversion, accessibility, and responsiveness across devices.Tailark comes in three visual kits to match different brand tones. Dusk is sleek and refined, ideal for dark mode experiences. Mist is clean, light, and welcoming, inspired by Notion-style clarity. Quartz, the Pro kit, offers premium blocks and full-page templates for teams looking for a more elevated visual language.

Developer Tools Open Source Design Tools

8. Sora Invite Code

Share Your OpenAI Sora 2 Invite CodeSora Invite Code connects creators who have access with dreamers still waiting. Drop your code, pick up a fresh one, and keep the relay alive.

Open Source

9. concrete calculator

concrete calculator is a professional online tool that helps you accurately calculate the amount of concrete needed for various shapes such as slabs, cylinders, tubes, curbs, and stairs. It calculates volume, estimates weight, and determines the number of bags needed, making your construction project planning more precise.Using our concrete calculator ensures:1) Professional, accurate calculations to avoid material waste; 2) Significant time savings with quick results; 3) A detailed calculation process to understand every data point; 4) Support for multiple unit systems;5) Tracking of calculation history for easy reference. This tool combines all these features to make your project planning efficient.Our concrete calculator uses precise, industry-standard formulas, so results are theoretically accurate. However, in real projects there can be normal loss and shape deviations from ideal models. You should always purchase a little more material than you need—we recommend allowing extra for waste, typically 5–10%, when ordering.Cost Reference: 60 lbs bags cost anywhere from ~$3 to ~$6, while 80 lbs bags cost anywhere from ~$5 to ~$8. This helps you budget for the additional material needed.

Open Source Productivity

10. Sound Level Meter

Sound Level Meter is a professional online sound measurement tool that provides real-time decibel monitoring and acoustic analysis using your device's microphone. Our platform delivers accurate sound level measurements with advanced features including frequency analysis, sound classification, and comprehensive metrics tracking for professionals, educators, and enthusiasts.

Education Tech Open Source

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