compresso
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Client-side image compression

Client-side compression moves work to the user device: no GPU servers, no privacy risk, no per-GB bills. Compresso is built for upload flows that need optimization before the network request.

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How it works

  1. User selects an image in your app.
  2. compresso.js optimizes locally.
  3. Only the smaller file is uploaded.

Common questions

When use server-side instead?
Batch back-office processing — use sharp. User uploads in browser — use Compresso.

For developers

Embed compression in your upload flow:

npm install compresso.js
npm · Docs

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