awslabs/llrt
LLRT (Low Latency Runtime) is an experimental, lightweight JavaScript runtime designed to address the growing demand for fast and efficient Serverless applications. observed · 2026-08-28
Health v2 · maintenance only
81/100
- Activity 99
- Release rhythm 59
- Longevity 77
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: 45.0
- age_days: 1078
- days_rel: 194
- days_push: 7
- n_releases_24m: 11
Adoption not part of the score
8793 stars · 391 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
LLRT (Low Latency Runtime) is a lightweight JavaScript runtime built in Rust on the QuickJS engine, designed for fast-starting serverless applications on AWS Lambda. It offers over 10x faster cold starts and up to 2x lower cost compared to Node.js, though it is not a drop-in Node.js replacement.
Use cases
- run javascript on aws lambda with faster cold starts
- reduce serverless function costs
- deploy lightweight js lambda custom runtime
- bundle small lambda functions with quickjs
- evaluate alternatives to node.js for serverless
When to choose
- your lambda workloads are latency-sensitive and cold-start dominated
- you can bundle dependencies and don't need full Node.js API compatibility
- you want lower memory and cost for simple serverless functions
When to avoid
- you need full Node.js compatibility or native addons
- you require long-running processes outside AWS Lambda
- you need a production-guaranteed runtime - it is explicitly experimental
Facets
cli-tool · maturity experimental
interpreter serverless http-server developer-tools developer-tools cloud-computing programming-languages performance rust serverless cross-platform javascript-runtime quickjs aws-lambda cold-start low-latency edge-runtime linux
1 source
- readme: https://github.com/awslabs/llrt · fetched 2026-08-28 · db31b2565ea1
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| awslabs/llrt | main | 81 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem