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Dev tools · alternatives · 2026

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24 alternatives to Flintable – Fixable ESLint rules Playground

Hi community! I am glad to introduce to you my latest project! What? Flintable is a playground for experimenting lint rules, focusing on fixable layout and suggestions rules. I initially focused on ESLint, the most popular JavaScript linter. Flintable allows adding your code and regularly testing it with individual rules or custom configurations, composing your own configuration file. How? I developed Flintable using the PHP Laravel framework for the server side and the Vue framework linking them with Inertia JS, accompanied by Tailwind CSS for the client side. Laravel Horizon manages the…

Flintable is a web-based playground for testing and experimenting with ESLint rules and configurations. Developers can paste code, apply individual linting rules or custom configurations, and see results in real time.… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Flintable – Fixable ESLint rules Playground launched in 2023; newer entries below may have overtaken it.

  1. 1
    Flintable - Alpha▲7

    ESLint fixable rules playground

    2023 · flintable.com · its alternatives →

  2. 2
    Fast.js – faster reimplementations of native JavaScript functions▲323

    Faster user-land reimplementations for several common builtin native JavaScript functions. - codemix/fast.js

    2014 · github.com · its alternatives →

  3. 3
    Flint – Write code your way while ensuring remote consistency▲13

    I just released my biggest project yet: Flint, a language-agnostic Git wrapper that lets developers code using their own formatting preferences locally, while automatically enforcing the project's style on push. No more fighting over tabs vs spaces or dealing with noisy diffs. GitHub: https://github.com/capsulescodes/flint Documentation: https://flintable.com/docs/flint/ Article: https://capsules.codes/en/blog/flintable/en-flintable-introd...

    2025 · github.com · its alternatives →

  4. 4
    Lowdefy – Build internal tools with YAML on an open-source framework▲107

    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 →

  5. 5
    Million Lint▲144

    Identify & fix slow code – Grammarly for performance

    2024 · million.dev · its alternatives →

  6. 6
    CLJS Fiddle – ClojureScript▲82

    A private, browser-only ClojureScript playground powered by the self-hosted compiler.

    2016 · cljsfiddle.com · its alternatives →

  7. 7OA
    Oxlint – a new JavaScript linter written in Rust▲15

    Oxlint is a JavaScript linter designed to catch erroneous or useless code without requiring any configurations by default. Oxlint is part of the oxc project [1], which is a collection of JavaScript tools written in Rust. [1]: https://oxc-project.github.io

    2023 · oxc-project.github.io · its alternatives →

  8. 8CP
    Clojure parser and core library in JavaScript, live on CodeCombat▲57

    2014 · vickychijwani.github.io · its alternatives →

  9. 9AP
    A parody ESLint plugin with absurd rules▲6

    2023 · dont.ninja · its alternatives →

  10. 10
    Nectar, a Rust-like React that compiles to WebAssembly▲29

    After a pretty rough gig experience, I wanted to remind myself that I was a vaguely capable developer. I had recently jumped on the Rust train and wanted a Rust equivalent of React that is more performant and easier to work with. I also wondered if I could effectively eject Javascript. This project came from that... Nectar is a programming language that compiles your entire app, logic, state, and rendering, to WebAssembly. JavaScript is reduced to a roughly 10 KB syscall layer that only bridges WASM to the DOM. The origin: I set out to get React-style ergonomics with better performance, and…

    Jul 2026 · buildnectar.com · its alternatives →

  11. 11
    Deslop – Oxlint rules for AI-generated TypeScript▲32

    Contribute to maharshi365/deslop development by creating an account on GitHub.

    8d ago · github.com · its alternatives →

  12. 12
    Boilerplate for Node.js and TypeScript with Jest tests▲33

    Production-ready Node.js TypeScript boilerplate: ESM, Vitest, ESLint, Prettier, GitHub Actions, Mise, and AGENTS.md included. - jsynowiec/node-typescript-boilerplate

    2017 · github.com · its alternatives →

  13. 13
    Craft.js – A React framework to build any page editor▲26

    🚀 A React Framework for building extensible drag and drop page editors - prevwong/craft.js

    2020 · github.com · its alternatives →

  14. 14
    I reinvented PHP in TypeScript (demo)▲25

    I built Morph, an experimental fullstack HTML-first library for Deno, Node, and Bun. Everything returns HTML, not JSON. No React, no Vite — just plain HTML with server-side rendering. No build steps, no preprocessors, no complex configs — everything runs from a single file. Perfect for Telegram Web Apps, internal tools, simple admin panels, dashboards, or anywhere a full-blown SPA feels like overkill. Important: I built this entirely for myself — to solve my own problems. I hate complex frontend. I hate writing it. And I don’t want to waste time on it. But maybe it’ll help you too.

    2025 · github.com · its alternatives →

  15. 15
    Proselint▲13

    A linter for prose. A smarter grammar & style checker.

    2016 · proselint.com · its alternatives →

  16. 16
    A lightweight fullstack boilerplate based on VueJS and Node.js▲24

    A lightweight boilerplate for a universal webapp based on koa, mongodb, node, vue, and webpack - yunhan0/koa-vue-fullstack

    2018 · github.com · its alternatives →

  17. 17
    Ng-classy – Use Angular 1 and ES6 with ease▲23

    2015 · github.com · its alternatives →

  18. 18
    Cample.js: Open-Source framework based on reactivity without VDOM▲6

    One of the fastest frameworks without a virtual DOM on the Internet! - Cample.js/src at main · Camplejs/Cample.js

    2023 · github.com · its alternatives →

  19. 19
    Cample.js – non-keyed framework based on reactivity without VDOM▲5

    One of the fastest frameworks without a virtual DOM on the Internet! - Cample.js/README.md at main · Camplejs/Cample.js

    2023 · github.com · its alternatives →

  20. 20
    NeuroLint CLI▲11

    Rule-based code fixes. No AI hallucinations. Just results.

    Dec 2025 · its alternatives →

  21. 21
    Tensorbox, Grammarly for Python/JS▲6

    Stop spending time on bugs, focus on what matters.

    2022 · tensorbox.ai · its alternatives →

  22. 22
    Lint Your Markdown with ESLint▲14

    Lint your Markdown with ESLint. Additional rules for use with `@eslint/markdown`.🛠️ - lumirlumir/npm-eslint-markdown

    Jun 2026 · github.com · its alternatives →

  23. 23
    My Attempt to Recreate Angular / React in 50 Lines of JS▲11

    A simple react / angular clone. Well, that's the end goal anyway. Just an experiment. - zackify/Simpler

    2014 · github.com · its alternatives →

  24. 24
    A simple language server for JavaScript, powered by ESLint and Tern▲10

    A simple language server for JavaScript, powered by ESLint and Tern. - tbodt/js-langserver

    2018 · github.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 →