Env Parser Online — .env File Validator, Converter to JSON, YAML & Docker
Env File Parser & Converter
Parse, validate, and convert .env files between formats.
A powerful utility for working with environment variables. Parse .env files, detect syntax errors and leaked secrets, and convert them to JSON, YAML, TOML, Docker formats, or Kubernetes ConfigMaps. Runs completely client-side to ensure your secrets never leave your browser.
Keywords: env parser, env to json, env to yaml, json to env, json to env converter, json to env online, json to env file, nested json to env, docker env file, kubernetes configmap, detect secrets, validate env, dotenv converter, env file generator
Tags: env, dotenv, config, json, yaml, kubernetes, docker, secrets
Popular Developer Tools tools
- JWT DecoderDecode, inspect, and validate JWT tokens with claim analysis.
- Cron ParserParse, validate, and build cron expressions with human-readable explanations.
- Regex TesterTest, debug, and explain regular expressions with real-time match highlighting.
- Regex ExplainerBreak down any regex into plain English, token by token.
- AI Token CounterCount tokens and estimate API costs for major LLMs instantly.
How to Env File Parser & Converter Online
Paste your .env file content, JSON object, or YAML key-value pairs into the input panel on the left.
Choose your target format (JSON, YAML, .env, Docker env-file, Kubernetes ConfigMap, or TOML) from the bottom options bar.
Optionally enable 'Sort Keys' to alphabetically order your variables or 'Comments' to preserve or strip .env comments.
Review the 'Issues Found' section to see detected secrets, duplicate keys, or syntax errors instantly highlighted.
Click the Convert button or press ⌘↵ to generate the converted output.
Env File Parser & Converter Features
Comprehensive .env parser: handles comments, single/double quotes, multiline values, and 'export' prefixes.
Bidirectional format conversion: convert .env to JSON/YAML, or JSON/YAML back to a clean .env file.
Docker & Kubernetes support: generate Docker-compatible --env-file output or Kubernetes ConfigMap YAML with a single click.
Secret detection engine: automatically scans for AWS keys, GitHub tokens, JWTs, private keys, and database passwords.
Real-time validation: highlights duplicate keys, empty values, and formatting errors as you type.
Syntax highlighting: beautiful, color-coded output for JSON, YAML, and shell script formats.
Sort keys: alphabetically order your environment variables for better maintainability and cleaner diffs.
Privacy-first: all parsing and secret scanning happens locally in your browser. No environment variables are ever sent to a server.
Keyboard shortcuts: use ⌘↵ to convert, ⌘⇧K to clear input, ⌘⇧S to scan for secrets, and ⌘⇧V to validate.
Large-input handling: optimized to process large configuration files without UI lag.
Frequently Asked Questions
- Is it safe to paste my .env files here?
- Yes. DevFlow is designed with a local-first philosophy. All environment variable parsing, secret detection, and format conversion happens entirely in your browser using JavaScript. No data is ever transmitted to our servers or stored anywhere.
- What types of secrets can the tool detect?
- The scanner looks for common patterns including AWS Access Key IDs, AWS Secret Keys, GitHub tokens, Private Key blocks, JWT tokens, and database connection strings that contain passwords. It also uses heuristics to flag keys with suspicious names like 'API_SECRET' or 'DB_PASSWORD'.
- Can I convert JSON to .env?
- Yes. If you paste a JSON object, the tool will automatically detect it and allow you to convert it into a standard .env format, YAML, or any other supported output format.
- Does it support multiline values?
- Yes, our parser follows the standard dotenv specification for multiline values wrapped in double or single quotes. It correctly handles newlines and nested quote marks.
- What is a Kubernetes ConfigMap conversion?
- This feature takes your environment variables and wraps them in a standard Kubernetes ConfigMap YAML structure (`kind: ConfigMap`), making it easy to copy-paste your local configuration directly into your cluster manifests.
- Can I strip comments during conversion?
- Yes. You can toggle the 'Comments' checkbox in the options panel to either preserve the original .env comments in the output or generate a clean, comment-free file.
Related Developer Tools
- YAML ConverterConvert between JSON and YAML with validation, formatting, and multi-document support.
- JSON FormatterPrettify, minify, and validate JSON data instantly.
- Text Diff CheckerCompare two text blocks and highlight exactly what changed.
- Base64 Encode/DecodeEncode and decode Base64 strings, files, and data URIs instantly.
- JSON to TypeScript & Schema GeneratorGenerate TypeScript interfaces, Zod schemas, and Valibot schemas from JSON.