Environment Variable Diff

Find the differences between two .env files

Environment files drift between developers and deployments, and a missing key causes failures that are hard to trace. This tool compares two .env files in your browser to find missing keys and differences, so configuration mismatches are caught quickly.

Why comparing env files matters

A .env file holds the configuration a project needs, and when one environment has a key another lacks, the code that expects it fails, often with an unhelpful error far from the real cause. Comparing two env files, your local one against production’s template, a teammate’s against yours, surfaces the missing and differing keys directly. Doing this in the browser matters because env files contain secrets; the comparison runs locally so nothing sensitive is uploaded, which is exactly the property you need when the files hold credentials.

Catch config drift safely

It runs entirely in your browser, so nothing you paste is uploaded and the result is yours to copy straight into a project. Because it works client-side, you can use it on private code and data without anything leaving your machine.

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