nowfound

Dev tools · June 29, 2023

Open-source in-browser code editor and REPL in 10+ languages

I am super excited to open-source the code executor behind logicboard.com - an in-browser collaborative code editor. The backend is written in Elixir+Phoenix and implements a WebSocket API to execute code in docker containers. Next steps include making this more secure, I am considering Google's gVisor to implement better isolation between containers and the host kernel.

Open-source in-browser code editor and REPL in 10+ languages launched on June 29, 2023 with 5 votes, #1,966 of 4,655 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 3 years on.

What it does

Contribute to logicboard/logicboard development by creating an account on GitHub.

Does a similar job

all alternatives →
  • Open-source in-browser code editor/executor with REPL, 10+ languages2023 · github.com · ▲29

    I am super excited to open-source the code executor behind logicboard.com - an in-browser collaborative code editor. The backend is written in Elixir+Phoenix and implements a WebSocket API to execute code in docker containers. Next steps include making this more secure, I am considering Google's gVisor to implement better isolation between containers and the host kernel.

  • IM
    I made an in-browser code editor with code replay and REPL2023 · logicboard.com · ▲87

    I made a Logicboard.com — A collaborative code editor with code-replay feature. Code-replay lets you run the coding session like a movie, I wrote a blog post on how I implemented this: https://logicboard.com/blog/code-replay You can try out the demo here: https://logicboard.com/demo/:replay And play around with the code editor here: https://logicboard.com/demo/ Logicboard also has an REPL shell, just type "start()" and hit enter in the output area.

  • Repl.it2018 · replit.com · ▲399

    Code and deploy apps in any language right from your browser

  • Insomnia Designer – Open-source collaborative editor for API design2020 · insomnia.rest · ▲317

    Leading Open Source API Development Platform for HTTP, REST, GraphQL, gRPC, SOAP, and WebSockets

  • An open-source, collaborative, WYSIWYG Markdown editor2023 · editor.vrite.io · ▲460

    Inspired by the design and UI/UX of apps like Notion, and utility of open-source apps like StackEdit, I decided to create a minimalistic, local-only WYSIWYG Markdown editor. Some features worth highlighting: - Monaco editor and Prettier integration for code snippets - Tables (apparently the holy grail of WYSIWYG editing) - Embeds (for CodePen, CodeSandbox and YouTube, most useful for HTML or JSON exports) - Accepts Markdown paste-in, and "exports"/generates HTML, Markdown and JSON outputs - Collaboration (with real-time awareness and initial commenting system, available only when…

  • Ecode – A minimalist and fast open-source code editor2023 · github.com · ▲233

    Hi HN! I've been working on a code editor and I think that it's mature enough to catch some interest. It's using a custom GPU accelerated GUI written in C++. Currently implements some interesting features: LSP, terminal, auto-completion, linters, formatters, custom keybindings, plugins and more. It's a hobby project but still intends to be an alternative to other popular code editors like Sublime, Kate, Lapce, Lite XL (and takes inspiration from them). The project was born as a playground for the GUI I'm developing (eepp GUI) and is advanced enough to currently be my main code editor, but…

More dev tools this month

the category →
  • /dev/null▲483

    a social network for devs

    Dev tools · 3d ago · dev-null.sh

  • open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

    Dev tools · 27d ago · github.com

  • Contribute to reladraw/reladraw development by creating an account on GitHub.

    Dev tools · 25d ago · github.com

  • OpenBot▲362

    Grok Bot alternative: free, local, open-source, multiplayer

    Dev tools · 23d ago · openbot.run

  • Talanoa▲345

    Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

    Dev tools · 20d ago · talanoa.email

  • CoreSpeed▲332

    One MCP for everything your agents need: apps, memory, tools

    Dev tools · 28d ago · corespeed.io

Source: Show HN post ↗

Launched alongside, June 2023

the whole month →
  • Heya HN, I've been working on a reddit-like platform as my primary side project for the last few years. Doing a (very) soft launch today, mainly because I want to use it to encourage discussion of alternatives. How non.io works: 1. Free to browse, paid to interact. 2. Minimum subscription is $2 (though you can choose more). I take $1 to run the servers, everything left gets split evenly between everything you upvote that month. It's a simple model, but I hope it's a better one than the freemium model we've been relying on for the last few years. Fundamentally I feel like any ad-supported…

    Commerce · 2023 · non.io

  • Sivi AI▲938

    Generative AI to magically turn text to visual designs

    AI · 2023 · sivi.ai

  • Effortlessly publish on Twitter and LinkedIn, now with AI

    Growth · 2023 · typefully.com

  • Olvy 2.0▲826

    Analyze user feedback 10x faster with AI

    AI · 2023 · olvy.co

  • SlashPage▲755

    Create websites in seconds to build your first 1K community

    Growth · 2023 · slashpage.com

  • Easy to use AI-powered, drag-and-drop website, SAAS landing, directory, and blog builder for startups, mobile apps, and SaaS. 100% no code, no design skills needed.

    AI · 2023 · unicornplatform.com