Dockerfile Editor

How to use Dockerfile Editor

Open and edit Dockerfile files online. Search text and download your Dockerfile source without installing an editor or uploading files.

1. Import a local Dockerfile file or paste your Dockerfile source.
2. Edit the text and use Find to locate the section you need.
3. Copy the result or download the updated source file.

Dockerfile Editor · Example

FROM node:24-alpine
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
CMD ["npm", "start"]

FROM node:24-alpine
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
CMD ["npm", "start"]

The downloaded source retains your edits. Syntax coloring does not execute, compile or validate the program.

Usage notes

Your files and input are processed in this browser. No uploads or accounts.

This is a source editor. It does not run, compile or validate the program or connect to a server.