.env Tools
A free tool to parse, validate, and clean up .env files. Runs entirely in your browser, nothing sent to a server. Includes a file merger and a variable generator.
What's Included
- Instant .env viewer: parses and validates as you paste
- Catches duplicate keys, empty keys, unclosed quotes, and more
- .env Merger for combining multiple files with conflict picking
- .env Generator with 27 common variables, ready to download
- 100% client-side: nothing you paste is ever sent to a server
Why this doesn't touch a server
Most ".env viewer" tools online ask you to paste in database URLs, API keys, and JWT secrets, then send them off to check them.
That's the problem with .env files: they're full of things you're not supposed to share, and the tools built to help you manage them usually ask you to share them anyway.
.env Tools parses everything in your browser. Nothing you paste ever leaves the tab.
Catches what a quick read misses
Paste a .env file and the Viewer flags six kinds of mistakes as it parses.
DATABASE_URL=postgres://user:pass@localhost:5432/db DATABASE_URL=postgres://user:pass@prod-db:5432/db API KEY=sk_live_51H8x... =orphaned_value SITE_URL=example.com STRIPE_KEY="sk_test_51H8x... PORT 3000
Six real mistakes in seven lines, the kind you don't catch skimming.
Three tools, one page
Everything runs in your browser. Nothing you paste is ever sent to a server.
Paste or drop a .env file for a structured, sortable table plus instant flags for duplicate keys, empty keys, spaced keys, unclosed quotes, missing "=", and bare URLs.
Combine two or more .env files into one. Conflicting keys get picked one at a time. Built for consolidating dev, staging, and prod, or onboarding a new environment.
Start from 27 common variables across database, auth, API keys, cloud storage, OAuth, and monitoring. Check what you need and download a ready .env.
Start from a template instead of a blank file
27 variables across seven categories. Check what you need, fill in real values, download.
Database
Authentication
API Keys
Cloud Storage
OAuth
Application
Monitoring
Every value ships as a placeholder. Nothing here is a real secret. Swap in your own before you use it.
Using This Product
There's no premium tier here. .env Tools is free because it's mostly a proof of what a client-side-only tool can look like. If it saves you from committing a stray secret or chasing a silently-broken variable, it's done its job.