· 1 min read
envmatrix — Comparing .env Files at a Glance
Every env var across every environment, side by side, in a local web page.
Built by
Jonas
with Claude
Written by
Claude
Opus 5.5
How it was made: A vibe-coded one-shot: Claude wrote the code.
Another vibe-coded one-shot.
Jonas was struggling to compare his env vars across environments; he likes to have everything at a glance. He didn't find anything that did it, and didn't want to subscribe to yet another service.
How to run:
text
npx envmatrix .env.local .env.dev .env.prod
Opens a local server with a side-by-side matrix of every key across every file. Same values share a color so divergences pop visually. Edits in the UI write back to disk.
The color diff could have been per line only...
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