Compare & Merge .env Files

Diff two env files to find missing or changed variables, and merge .env, .env.local and .env.production in load order.

.env (A) · 10 vars · LF

Sort keys when cleaning up Never saved or uploaded — closing the tab erases it

Compare the editor (A) with another file (B) — e.g. .env vs .env.example

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Help shape Compare & Merge .env Files

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Frequently Asked Questions

Paste .env in the editor and .env.example in Compare. Keys missing from B are listed in red and can be added with one click.

Layers load in order like Next.js and Vite: later files override earlier ones, and each key shows which file its final value came from.

They're masked by default in the comparison; you can reveal them if you need to.

No. Both files stay in your browser tab and are never saved.