AI · alternatives · 2026
24 alternatives to OpenSilver
WPF/Silverlight for the modern web!
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. OpenSilver launched in 2024; newer entries below may have overtaken it.
- 1
Build beautiful documentation websites with ease
2023 · starlight.astro.build · its alternatives →
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We’re Francis and Pierre, and we're excited to share Lightpanda (https://lightpanda.io), an open-source headless browser we’ve been building for the past 2 years from scratch in Zig (not dependent on Chromium or Firefox). It’s a faster and lighter alternative for headless operations without any graphical rendering. Why start over? We’ve worked a lot with Chrome headless at our previous company, scraping millions of web pages per day. While it’s powerful, it’s also heavy on CPU and memory usage. For scraping at scale, building AI agents, or automating websites, the overheads are…
2025 · github.com · its alternatives →
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2018 · ultralig.ht · its alternatives →
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SuperDev▲164All in one browser extension for web designers & developers
2022 · chromewebstore.google.com · its alternatives →
- 6
Control the web with prompts (open source)
2025 · browser-use.com · its alternatives →
- 7
Grid.js▲322Free and open-source HTML table plugin that works everywhere
2020 · gridjs.io · its alternatives →
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🔥 🔥 🔥 The Open Source Retool Alternative. Contribute to openblocks-dev/openblocks development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 10
LangUI▲131Open source UI components tailored for your AI projects
2023 · langui.dev · its alternatives →
- 11
Cinder▲122Free and open source library for creative coding in C++
2017 · libcinder.org · its alternatives →
- 12
Open source rich text editor for the modern web. Contribute to Voog/wysihtml development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 13
Grommet▲107Open source UX framework for enterprise applications
2016 · v2.grommet.io · its alternatives →
- 14
Free Tailwind html UI Components - built to create landing pages and websites. Easyfrontend UI components are free and open-source. Copy paste the components to update your existing site or create a new site from it.
2024 · github.com · its alternatives →
- 15
The best open-source alternatives for you next maker project
2020 · opensourcestash.com · its alternatives →
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- 17WM
Try it out! https://glhf.chat/ Hey HN! We’ve been working for the past few months on a website to let you easily run (almost) any open-source LLM on autoscaling GPU clusters. It’s free for now while we figure out how to price it, but we expect to be cheaper than most GPU offerings since we can run the models multi-tenant. Unlike Together AI, Fireworks, etc, we’ll run any model that the open-source vLLM project supports: we don’t have a hardcoded list. If you want a specific model or finetune, you don’t have to ask us for it: you can just paste the Hugging Face link in and…
2024 · glhf.chat · its alternatives →
- 18
OpenGrph▲106Super fast open graph & cover image creator
2022 · opengrph.blockscribers.com · its alternatives →
- 19
Hi everyone, we’re a small team, supported by Mozilla, who are working on re-imagining a UI for training, tuning and testing local LLMs. Everything is open source. If you’ve been training your own LLMs or have always wanted to, we’d love for you to play with the tool and give feedback on what the future development experience for LLM engineering could look like.
2025 · github.com · its alternatives →
- 20BB
Hi HN, I'm Giovanni, founder of Userware. We built XAML.io, a free browser-based IDE for C# and XAML that compiles and runs .NET projects entirely client-side via WebAssembly. No server-side build step. The link above opens a sample project using Newtonsoft.Json. Click Run to compile and execute it in your browser. You can edit the code, add NuGet packages, and share your project via a URL. What's new in v0.6: - NuGet package support (any library compatible with Blazor WebAssembly) - Code sharing via URL with GitHub-like forking and attribution - XAML autocompletion, AI error fixing, split…
Feb 2026 · xaml.io · its alternatives →
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We're excited to announce Lowdefy V4, a full-stack web framework built on top of Next.js that simplifies building web applications, internal tools, admin panels, BI dashboards, and CRUD apps using YAML or JSON configuration files. New in V4: Next.js: Lowdefy now runs on top of the Next.js framework. All of Auth.js: App auth is now handled by Auth.js supported providers, adapters and callbacks and events, easy to configure, but all of which can be customized. Plugin extensibility: Apps can now be extended with any npm or pnpm workspace plugins. Our story: We have developed a simple…
2021 · lowdefy.com · its alternatives →
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microlight.js▲117Improves readability of code by highlighting
2016 · asvd.github.io · its alternatives →
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XamlFiddle▲12A powerful yet lightweight XAML editor for WPF.
2025 · xamlfiddle.com · 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 →