Railway does not store or provide downloadable copies of your deployed source code. Your source code lives in the Git repository (e.g. GitHub) you connected to each service, so you can clone or download it directly from there.

No don't have, initially I have uploaded to Railway only. didn't connect with git

You can't get a zip file of your source code deployed on Railway.

If you lost a local copy of the code and didn't upload it to a VCS, you won't be able to restore it.

adding to what MOD said, if the code is still in the container there's a more reliable way to pull it out than the file browser.

temporarily change the service's start command to serve the app directory over http, then just download it from your public URL:

python3 -m http.server $PORT --directory /app

if it's a node image without python, npx -y serve -l $PORT /app does the same, or busybox httpd -f -p $PORT -h /app on alpine.

redeploy, open your service's public domain in a browser, and you can browse and download the whole tree. change the start command back when you're done.

two warnings: it'll be publicly accessible while it's running so do it quickly and remove it after, and don't do it if there are secrets in files rather than env vars. also don't redeploy from a fresh build in the meantime, if the image ever gets rebuilt without the source you lose the chance.

if the container turns out not to have the source (multi-stage build that only kept the compiled output), then unfortunately it's gone and ben's right.