# workerd

13 Hacker News commenters recommended workerd and 7 criticized it, November 2025 to November 2026. It was recommended in 10 of 13 months.

**Verdict:** Open-source JavaScript runtime from Cloudflare that runs Workers code locally, with strong sandboxing and a wrangler-free mode. Caveat: still beta, and Durable Objects don't work across multiple machines.

## Why people recommend it

- Strong sandboxing and permissions (3 comments): "workerd as-is actually does provide strong sandboxing, at least as strong as (arguably stronger than) any other JS runtime" ([source](https://news.ycombinator.com/item?id=46010094)) "runtime supports sandboxing and permissions like deno or workerd" ([source](https://news.ycombinator.com/item?id=46845421)) "workerd has some pretty aggressive sandboxing too" ([source](https://news.ycombinator.com/item?id=50028330))
- Local development, testing and CI (2 comments): "developing and testing user-facing apps with Miniflare, workerd, D1, and wrangler has been a breeze" ([source](https://news.ycombinator.com/item?id=46744488)) "wrangler / workerd enables local CI" ([source](https://news.ycombinator.com/item?id=49648321))
- Open source, trusted Cloudflare runtime (2 comments): "Workerd is already open source so that's a good start." ([source](https://news.ycombinator.com/item?id=45880924)) "I trust workerd in the context of Cloudflare" ([source](https://news.ycombinator.com/item?id=46491148))

## What people warn about

- Beta, not production-ready (2 comments): "There is a big "WARNING: This is a beta. Work in progress" message in https://github.com/cloudflare/workerd" ([source](https://news.ycombinator.com/item?id=46490007)) "workerd is really far from production-ready Workers replacement" ([source](https://news.ycombinator.com/item?id=50038540))
- Depends on Cloudflare-only services (2 comments): "push on semantics that can only be run on Cloudflare infrastructure" ([source](https://news.ycombinator.com/item?id=50025278)) "you can't run D1 (Sqlite alternative), you can't run KV or Queues" ([source](https://news.ycombinator.com/item?id=50025779))

## Alternatives hackers recommend

- [Bun](https://hackerapproved.com/p/bun.md): 493 recommend
- [Node.js](https://hackerapproved.com/p/node-js.md): 257 recommend
- [Deno](https://hackerapproved.com/p/deno.md): 234 recommend
- [Ant JavaScript runtime](https://hackerapproved.com/p/ant-javascript-runtime.md): 16 recommend
- [Mystral Native](https://hackerapproved.com/p/mystral-native.md): 7 recommend

## Cite as

Hacker Approved, "workerd", https://hackerapproved.com/p/workerd/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).