Dev tools · alternatives · 2026

24 alternatives to Forge – A JavaScript runtime built on Mozilla SpiderMonkey

Contribute to varadTheDeveloper/forge-runtime development by creating an account on GitHub.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Bun▲295

   A fast JS runtime Node.js replacement with built‑in tools

   Dec 2025 · bun.com · its alternatives →

2. 2
   Forge – Guardrails take an 8B model from 53% to 99% on agentic tasks▲687

   Hi HN, I'm Antoine Zambelli, AI Director at Texas Instruments. I built Forge, an open-source reliability layer for self-hosted LLM tool-calling. What it does: - Adds domain-and-tool-agnostic guardrails (retry nudges, step enforcement, error recovery, VRAM-aware context management) to local models running on consumer hardware - Takes an 8B model from ~53% to ~99% on multi-step agentic workflows without changing the model - just the system around it - Ships with an eval harness and interactive dashboard so you can reproduce every number I wanted to run a handful of always-on agentic systems…

   May 2026 · github.com · its alternatives →

3. 3
   UXPin Forge▲244

   Generate UI from your design system, not around it

   Apr 2026 · uxpin.com · its alternatives →

4. 4JP
   JavaScript Program Synthesis▲139

   2021 · grgv.xyz · its alternatives →

5. 5CB
   Compiled, buildtime atomic CSS in JavaScript and all your favorite APIs▲47

   2021 · compiledcssinjs.com · its alternatives →

6. 6
   Forge▲66

   A complete React toolkit made for AI

   May 2026 · forge.webba-creative.com · its alternatives →

7. 7
   The Forge by Bob's Workshop▲81

   Describe your idea & your team builds, deploys & operates it

   Sep 2026 · github.com · its alternatives →

8. 8
   Selector Forge▲133

   Hi HN, I'm Ahmad from the Intuned (https://intunedhq.com) team. Today, we're releasing and open-sourcing Selector Forge (https://selectorforge.ai/), a browser extension that generates reliable CSS/XPath selectors using AI. You can use it to create a selector for a single element or for an array of elements. The selectors it creates are meant to be "semantic" and more resilient to page changes than what Chrome DevTool’s “Copy Selector” (and other similar extensions) give you. Those tend to hand you something brittle like `#top > div.w-100.ph0-l.ph3.ph4-m > h1 >…

   Jun 2026 · selectorforge.ai · its alternatives →

9. 9
   next-forge▲37

   A production-grade boilerplate for modern Next.js apps.

   2023 · its alternatives →

10. 10
    Forge▲81

    Dynamic PDF / DOCX document generation

    2021 · useforge.app · its alternatives →

11. 11RU
    Run unsafe user generated JavaScript in the browser▲113

    I needed a way to let users write JavaScript to create plugins for a site I'm building. I couldn't find a solution I was happy with, so ended up building one that run's it in a web worker on a separate domain from your main site. Hopefully I haven't missed anything. If so, please let me know! My website has an interactive demo you can write code in the browser textarea, and see the output on the right. Interactive Demo: https://workerbox.net/ Github: https://github.com/markwylde/workerbox

    2022 · workerbox.net · its alternatives →

12. 12IW
    I wrote a .NET to JS compiler. Here's an XNA demo compiled to JS.▲103

    2011 · hildr.luminance.org · its alternatives →

13. 13
    6to5 – Turn ES6 code into vanilla ES5 with source maps and no runtime▲48

    🐠 Babel is a compiler for writing next generation JavaScript. - babel/babel

    2014 · github.com · its alternatives →

14. 14
    the Forge▲6

    a CLI tool for generating and hosting Progressive Web Apps.

    2018 · its alternatives →

15. 15
    Ion, a Rust/Tokio powered JavaScript runtime for embedders▲30

    A Positively Charged JavaScript Runtime . Contribute to alshdavid-public/ion development by creating an account on GitHub.

    2025 · github.com · its alternatives →

16. 16
    A simple Pastebin Clone using Deno▲58

    This is a simple Pastebin clone I made using the Deno Typescript runtime. I created a simple templating system, and implemented server-side rendering for the UI. Demo: https://paste.jlcarveth.dev/

    2023 · github.com · its alternatives →

17. 17TJ
    Titan – JavaScript-first framework that compiles into a Rust server▲49

    Hi HN, I built Titan, a backend framework where you write routes and logic in JavaScript, and the CLI compiles everything into a single Rust + Axum binary using the Boa JS engine. No Node.js is required in production. The idea is to keep JS developer experience while getting Rust performance and a self-contained deployable server. Current features: JS route DSL Action system mapped to Rust esbuild bundling Generated Rust server with Axum Hot-reload dev server Single-binary output Repo: https://github.com/ezet-galaxy/-ezetgalaxy-titan Would love feedback on the…

    Dec 2025 · npmjs.com · its alternatives →

18. 18
    I built an extension of JavaScript in a day▲26

    2014 · github.com · its alternatives →

19. 19
    Forge▲6

    Self-hosted workflow engine for all favor agents

    May 2026 · forgeailab.github.io · its alternatives →

20. 20
    Forge - Free Front End Page Builder▲6

    A free WordPress page builder that works on the front end.

    2016 · bigtheme.net · its alternatives →

21. 21
    RunJS▲18

    The JavaScript playground for your desktop

    2018 · runjs.app · its alternatives →

22. 22
    UI Forge▲23

    Build Faster, and Beautifully With One UI Component Library!

    2025 · ui-forge.vercel.app · its alternatives →

23. 23
    A new language that merges FORTH and Javascript▲10

    FORTH-like language for Javascript / Node. Contribute to mark-hahn/fjs development by creating an account on GitHub.

    2013 · github.com · its alternatives →

24. 24
    ForgeHeart▲7

    Battle-tested tools for founders

    2025 · its alternatives →

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 →