Validate .env Before Deploying

Catch config mistakes before they reach production.

Nid oes angen mewngofnodi

.env contents

💡 Catches duplicate keys, spaces around =, unquoted values, and naming-convention issues — then gives you a cleaned, sorted file and a ready-to-commit .env.example. Your secrets are parsed entirely in your browser and never uploaded.

CI/CD tips

⚙️

A quick lint before deploy catches the duplicate key or stray space that would break config in production.

✅

Aim for zero errors; review warnings for anything that could be misread by your loader.

📋

Keep your committed .env.example in sync with the cleaned key list.

🔒

Nothing is uploaded — safe for production secrets.

Sut Mae'n Gweithio

Ewch i mewn

Enter your data into the tool above. Everything stays local to your browser.

Proses

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Lawrlwythwch

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Pam defnyddio ein un ni?

✓Hollol rhad ac am ddim - dim costau cudd, byth

✓Nid oes angen cyfrif, e-bost na mewngofnodi

✓Nid yw ffeiliau byth yn gadael eich dyfais

✓Dim cyfyngiadau maint ffeil o gwbl

✓Dim dyfrnodau ar unrhyw allbwn

Also check out…

📋

Generate a .env.example

Create a .env.example from your real .env so teamm

🐞

Debug a Broken .env File

Find why your environment variables aren't loading

🧹

Clean Up a Messy .env

Sort, de-duplicate, and normalise an .env file.

📐

Enforce .env Naming Conventions

Check that environment variable names follow UPPER

Cwestiynau Cyffredin

Back to ENV File Validator