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Axios → ky / native fetch

easy

Axios is 13kb minified+gzipped. Ky is 4kb and built on fetch. For most apps the bundle savings and modern API are worth the migration.

Estimated: 1-3h · 5 steps
Progress0%
Step 1: Install ky
npm uninstall axios && npm install ky
Step 2: Create instance

Configure base URL, headers, timeout once.

import ky from 'ky'
export const api = ky.create({ prefixUrl: process.env.NEXT_PUBLIC_API_URL, timeout: 10000 })
Step 3: Replace request calls

axios.get(url).then(r => r.data) → api.get(url).json(). Errors throw HTTPError instead of axios error shape.

Step 4: Update interceptors

Axios interceptors → ky hooks (beforeRequest, afterResponse, beforeError). Auth refresh handled in afterResponse.

Step 5: Verify FormData and uploads
✓ All requests succeed. Bundle size reduced. No regressions in error handling.

What this migration involves

Moving from Axios to ky / native fetch is rated easy and takes about 1-3h on a typical project. The guide breaks it into 5 steps, 2 of which ship with runnable commands and 1 with a verification check.

Related migrations

Axios → Native fetch — easy, 1-3h

FAQ

How long does migrating from Axios to ky / native fetch take?

Around 1-3h for a typical project — 5 steps, difficulty rated easy, 2 of them with copy-paste commands.

Is moving from Axios to ky / native fetch reversible?

No reverse guide is tracked yet, so treat this as a one-way move and keep a full export of your Axios data before you start.

What does ky / native fetch cost compared to Axios?

Pricing for both tools is contact-based or not tracked yet.