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BuilderIO
mitosis
TypeScript2021–2026
BuilderIO / mitosis

mitosis

Write components once, run everywhere. Compiles to React, Vue, Qwik, Solid, Angular, Svelte, and more.

15Distinct people
17Mentions
0Explicit recommenders
14.5KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Write components once, run everywhere. Compiles to React, Vue, Qwik, Solid, Angular, Svelte, and more.

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:03:16 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year17 dated mentions

Observed mentions: 2021-07-29 18:16:59 UTC to 2026-01-29 22:36:30 UTC.

02462021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 7 mentions; 5 submissions, 2 comments20212022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 3 mentions; 1 submissions, 2 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 3 mentions; 1 submissions, 2 comments20232024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 2 mentions; 1 submissions, 1 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-01 00:00:00 UTC to 2027-01-01 00:00:00 UTC (exclusive): 2 mentions; 1 submissions, 1 comments. Incomplete calendar period.2026*

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC752
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC312
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC312
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC211
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC000
2026 (partial)2026-01-01 00:00:00 UTC2027-01-01 00:00:00 UTC211

What Hacker News says

17 sources
> Mitosis provides a unified development experience across all frameworks, enabling you to build components in a single codebase and compile them to React, Vue, Angular, Svelte, Solid, Alpine, Qwik, and more. > Maintain a consistent design system across multiple frameworks (example) > Sync your design systems from Figma to code and publish them to npm across frameworks > Avoid the pitfalls of web components by compiling to native framework code > MIT licensed: https://github.com/BuilderIO/mitosis/blob/main/LICENSE Website: https://mitosis.builder.io/
In Mitosis: Write Components Once, Run in React, Vue, Qwik, Solid, Angular, Svelte
> I don't want to step on your toes by linking my own project Not at all, it's in good spirit! Happy to talk through any technical details from my side :) > though if you try to listen for those changes with a mutation observer, it won't fire It doesn't have to fire an immediate mutation imo. When you click on an element to edit, you could inject a data-attribute into it (not sure if the Chrome Devtool let you do this but an extension might). At write-time, you can query the elements that were marked, get the delta and write it to code. You might've thought of this longer than I have so I think that might be a naive solution. > can then be transpiled into any framework the user wants You might be interested in Mitosis https://github.com/BuilderIO/mitosis
In Show HN: An open-source, local-first Webflow for your own app
mox111·Sep 23, 2023Submission

Show HN: Create-multi-lib – Write UI code once, compile to multiple frameworks

Mitosis (https://github.com/BuilderIO/mitosis) is a fantastic project, but is still in its early stages, and in need of some build tooling. It allows you to "write once, run everywhere" in the sense that you can write a UI component and have it compiled to a React component for use in a React project, a Svelte component for use in a Svelte project, and so on. It does not, however, support bundling. create-multi-lib (run like so `npx create-multi-lib <your-lib-name>) is my attempt to contribute a much needed bundling-layer on top of Mitosis. It also comes with E2E testing included, and your resulting packages include type-declarations.
1 points · Open discussion
This is neat! I’m curious if you see this being extended for other languages, or the concept being applied in other projects? As for similar concepts, several projects by builder.io have some overlap. Most notably Mitosis[1], but I’d be shocked if TS-Lite[2] isn’t using similar techniques. Potentially Qwik[3] as well but I’m not sure, I would have bet that’s using Mitosis but it looks like that’s the other way around. 1: https://github.com/BuilderIO/mitosis 2: https://github.com/BuilderIO/ts-lite/tree/main/packages/core 3: https://github.com/BuilderIO/qwik
In Show HN: Monocle – bidirectional code generation library

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