Secrets hygiene

ENV / .env Linter & Redactor

Catch duplicate keys, odd lines, and credential-shaped values before they land in a ticket. Redact in one click when you need to paste a sample safely.

Privacy: Your pasted environment text is analyzed entirely in this browser tab. We do not upload it to Codeground servers, log it for training, or store it—reload the page and it is gone from memory.

Paste .env contents

3 unique keys

Findings

  • L3 Sensitive-looking key or value — verify before sharing.
  • L5 Duplicate key "DEBUG" (also on line 4).

Redacted copy

# Example
DATABASE_URL=***redacted***
API_KEY=***redacted***
DEBUG=***redacted***
DEBUG=***redacted***

Online .env linter and redactor for developers

Twelve-factor apps and local development often rely on .env files full of API keys, database URLs, and feature flags. Shipping those raw files into Slack, tickets, or screenshots is how secrets leak. This tool helps you validate structure (duplicate keys, malformed lines) and produce a redacted copy where values are replaced so you can share the shape of configuration without exposing credentials.

Nothing leaves your machine: parsing, lint rules, and redaction run client-side in JavaScript. Unless you explicitly use another Codeground feature that calls our APIs, your env contents are not transmitted to us or persisted.

What we flag

  • Duplicates: later assignments that shadow earlier keys—often a merge mistake.
  • Malformed lines: rows that do not look like KEY=value assignments.
  • Sensitive patterns: advisory hints when names or values resemble passwords, cloud access keys, or live Stripe-style prefixes—always verify manually before sharing.

Redaction behavior

Redaction replaces values with a placeholder while preserving keys and comments so teammates still understand variable names and grouping. After exporting a snippet, rotate any credential that ever existed in plaintext outside a vault.

FAQ

Do you store pasted env files? No. Processing happens in your browser session only.

Is redaction legally sufficient for compliance? This is a developer convenience tool, not a certified data-loss-prevention product—treat output as “safer,” not guaranteed scrubbed.