GrainJS – a light TypeScript web framework

Hacker News

GrainJS is a JavaScript / TypeScript library for building dynamic web applications. - It's in part inspired by React, but based on observables (like Knockout) instead of virtual dom. - It is lightweight, has no dependencies, and takes only ~30KB minified. - It needs no special tooling. It's nothing more than a library. - It supports convenient DOM-building in JS, event dispatching, DOM event subscriptions, 9disposable components, and in-code CSS styling. - It's fully typed for use with TypeScript. - It's proven its worth by powering Grist's rich frontend app. Source code: https://github.com/gristlabs/grainjs/

Visit product View on Hacker NewsDec 26, 2025

Share card

Actual performance

5points

4comments

Did not reach leaderboard

Launch Intel predictions

Analyze your own launch →

Indie HackersFits the IH revenue-focused audience · Strong signals: supports · Missing: reddit linkedin, podcasting, created

70%70% predicted probability of success on Indie Hackers, based on ML models trained on real launch data.

best fitHighest predicted score across all platforms for this description.

Hacker NewsStrong engagement from HN community · Strong signals: io · Missing: https docs, excited, just released

59%59% predicted probability of success on Hacker News, based on ML models trained on real launch data.

nativeThis product was originally launched on this platform.

Product HuntOn track for Day 1 leaderboard · Strong signals: code · Missing: mac, agents, macos

57%57% predicted probability of success on Product Hunt, based on ML models trained on real launch data.

AppSumoMay struggle as an AppSumo deal · Missing: plus, platform, intuitive

45%45% predicted probability of success on AppSumo, based on ML models trained on real launch data.

TrustMRRLess likely to generate early MRR · Missing: mobile apps, ios, personal

27%27% predicted probability of success on TrustMRR, based on ML models trained on real launch data.

Acquire.comPre-revenue stage for this audience · Strong signals: subscription · Missing: arr, mrr, revenue

15%15% predicted probability of success on Acquire.com, based on ML models trained on real launch data.

BetaListMay not resonate with beta-testers · Missing: web3, chat, crypto

1%1% predicted probability of success on BetaList, based on ML models trained on real launch data.

Incorrect prediction on native model

Similar products

A no-build fullstack SSR TypeScript web framework67%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

A no-build fullstack SSR TypeScript web framework

Hacker News75

Statically typed MongoDB framework for TypeScript52%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Statically typed MongoDB framework for TypeScript

Hacker News2

Garph – fullstack GraphQL framework for TypeScript68%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Garph – fullstack GraphQL framework for TypeScript

Hacker News2

Light and Powerful Web-Framework for C++71%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Light and Powerful Web-Framework for C++

Hacker News7

New GraphQL Framework for TypeScript65%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

New GraphQL Framework for TypeScript

Hacker News6

TypeScript Scenario-Based Web Application Fuzzing Framework41%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

TypeScript Scenario-Based Web Application Fuzzing Framework

Hacker News1

NodeAkt – Zero-dependency distributed actor framework for TypeScript52%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

NodeAkt – Zero-dependency distributed actor framework for TypeScript

Hacker News5

An open-sourced TypeScript agent framework55%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

An open-sourced TypeScript agent framework

Hacker News3

Remult – a CRUD framework for full-stack TypeScript57%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Remult – a CRUD framework for full-stack TypeScript

Hacker News130

Remult24%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

A CRUD framework for full-stack TypeScript

Indie Hackers

Browse all products Analyze your launch