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Dev tools · alternatives · 2026

24 alternatives to I rebuilt a web-based IDE

Atheos is an open source, web-based, cloud IDE and code editor with minimal footprint and requirements, built on top of Codiad by Fluidbyte

Atheos is a web-based integrated development environment that runs in a browser. It allows developers to write, edit, and manage code projects online without requiring local installation. The platform launched in 2020… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I rebuilt a web-based IDE launched in 2020; newer entries below may have overtaken it.

  1. 1

    Hi HN, I’m Kiet, one of the creators of Onlook studio. I made this app that allows you to visually edit your locally running React app and write the code back to it in real-time. The purpose is to allow you to develop UI while fully owning your code the whole time. There are other visual builders out there but they either require you to upload your code to the cloud or some lengthy setup process. Onlook runs locally, deterministically, and only requires adding a plugin for the compile step (2 lines of config change). Technical details: This is technically a web browser that can point to your…

    2024 · github.com · its alternatives →

  2. 2
    Atono▲189

    We kept asking "why did we build it this way?" and spending 20 minutes hunting through Jira, Slack, and GitHub for answers. It was a symptom of a bigger "Jira-problem". So we built Atono (https://atono.io). The idea: Stories that don't die when you ship. Everything - requirements, code changes, bugs, decisions - stays in one place. Our take (might not be for everyone): -Feature flags live in the story, not another tool -Feature engagement for you to see if people use what you built -Context > process What's in it: -Toggle feature flags right in the story -See usage graphs without…

    2025 · atono.io · its alternatives →

  3. 3

    The open-source, local-first Figma for React apps

    2025 · onlook.com · its alternatives →

  4. 4AV

    I made this because building UIs in a lexical medium like code is super annoying. I have to pre-render what I’m making in my head, and then jump between the browser and IDE to test. I was inspired by the developer console in chrome and safari since I end up editing css there because it’s ironically more convenient. Hope it’s useful!

    2022 · dev.aspect.app · its alternatives →

  5. 5
    Code.xyz▲378

    The online code editor for building APIs in a single click.

    2018 · namekeeper.com · its alternatives →

  6. 6

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

    2020 · insomnia.rest · its alternatives →

  7. 7

    Discuss, review, and understand code from inside your IDE

    2019 · its alternatives →

  8. 8VT

    Hey HN! We're so excited to show you Val Town (https://val.town)! A "val" is a JavaScript/TypeScript function or value that runs on our servers. We aim to get you from idea to running code in seconds: type code, run it, get its API endpoint, schedule it - all from the browser, in a couple keystrokes. We're a startup of 4 people, mostly in NYC. We've been working on this for 6 months and are eager for feedback from the HN community. Why do we need yet another online coding IDE? While researching devtools[1], I found myself wanting something halfway between Replit and Zapier: a…

    2023 · val.town · its alternatives →

  9. 9

    A web based IDE for building websites by CodePen

    2017 · codepen.io · its alternatives →

  10. 10

    Deploy anything in under 5s, no DevOps experience needed

    2023 · its alternatives →

  11. 11

    Open-source, secure environment with real-world tools for enterprise-grade agents. - e2b-dev/E2B

    2023 · github.com · its alternatives →

  12. 12

    A realtime server for the modern web

    2016 · deepstream.io · its alternatives →

  13. 13

    Old version. Visualise data and edit JavaScript code using a spreadsheet interface. - chrispsn/mesh

    2017 · github.com · its alternatives →

  14. 14
    Editor.do▲140

    The all-in-one online IDE, visual builder & host

    2024 · editor.do · its alternatives →

  15. 15
    Codiva▲97

    Online compiler & IDE that developers love

    2018 · codiva.io · its alternatives →

  16. 16
  17. 17

    Open source cloud & desktop IDE. Contribute to CodeboxIDE/codebox development by creating an account on GitHub.

    2014 · github.com · its alternatives →

  18. 18WD
  19. 19

    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…

    2023 · github.com · its alternatives →

  20. 20

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

    2017 · insomnia.rest · its alternatives →

  21. 21
    Inbix▲74

    Cloudflare-native Email Infrastructure for Developers

    Jul 2026 · inbix.xyz · its alternatives →

  22. 22

    Developer-focused cloud IDE to maximize your productivity.

    2021 · goorm.io · its alternatives →

  23. 23WG

    I built a Vite plugin that lets you write Go code directly in .js files using a "use golang" directive. It compiles to WebAssembly automatically.

    Oct 2025 · npmjs.com · its alternatives →

  24. 24

    An online Javascript code editor 🤖

    2019 · 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 →