Elysia vs Koa
Updated Mar 4, 2026
Quick Verdict
Koa has 2.0x more GitHub stars.
GitHub Stars
Elysia 17.5K
vs
Koa 35.7K
Downloads/wk
Elysia 0
vs
Koa 0
Contributors
Elysia 118
vs
Koa 250
Bundle Size
Elysia 49.8 KB
vs
Koa 62.8 KB
Detailed Comparison
Side-by-side metrics from GitHub and npm
Metric
Elysia
Koa
GitHub Stars
17.5K
35.7K
Weekly Downloads
0
0
Forks
480
3.2K
Open Issues
254
26
Contributors
118
250
Bundle Size (gzip)
49.8 KB
62.8 KB
Dependencies
4
18
Latest Version
1.4.27
3.1.2
Last Commit
Mar 2, 2026
Feb 28, 2026
License
MIT
MIT
First Published
Dec 4, 2022
Nov 6, 2013
Feature Comparison
Framework capabilities at a glance
Feature
Elysia
Koa
Typescript
Middleware
Websockets
Validation
Openapi
Edge Runtime
Decorators
Frequently Asked Questions
Common questions about Elysia vs Koa
Is Elysia better than Koa?
It depends on your use case. Elysia is ergonomic framework for humans built on bun, while Koa is expressive middleware for node.js using async functions. Compare the stats and features above to decide which fits your needs.
Is Elysia still maintained in 2026?
Yes, Elysia was last updated on March 2, 2026 and has 118 contributors.
Can I migrate from Elysia to Koa?
Migration complexity depends on how deeply Elysia is integrated into your project. Both tools serve similar purposes in the Backend Frameworks space, so migration is generally feasible with proper planning.
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