Skip to content
uencoder
TASK

Convert .env files to JSON

.env files store KEY=VALUE pairs for environment configuration. Convert to JSON for structured access, type casting, and validation.

  1. 1

    .env files contain KEY=VALUE pairs, one per line, with optional comments (#) and quotes. They are used for environment-specific configuration (database URLs, API keys, feature flags). Converting to JSON enables type casting, nesting, and schema validation.

  2. 2
    TOML Converter →

    Parse the .env file as key=value pairs and convert to JSON. Each line becomes a top-level key. Quoted values are strings; unquoted numeric values are cast to numbers; true/false are cast to booleans.

  3. 3
    JSON Formatter →

    Format the converted JSON. .env files are flat (no nesting), so the JSON will be a flat object. If you need nesting (e.g., DATABASE_HOST, DATABASE_PORT → database: {host, port}), post-process the JSON with a naming convention parser.

  4. 4

    Security: .env files must never be committed to version control (add to .gitignore). They often contain secrets (API keys, database passwords). Converting to JSON does not change this — the JSON file must also be gitignored. Use a secrets manager (Vault, AWS Secrets Manager) for production.

Frequently asked questions

Should I use .env or JSON for configuration?
Use .env for deployment-specific values (secrets, URLs) that differ between environments. Use JSON or TOML for structured configuration (feature flags, UI settings) that benefits from nesting and types. They serve different purposes and can coexist.
How do I handle multiline values in .env?
Use quotes: KEY="line1\nline2". Some .env parsers support this, others do not. If you need multiline values, consider JSON or YAML instead. The conversion tool will handle quoted multiline values correctly.

Workflows that solve this

Compare two YAML configs via JSON
Convert YAML configs to JSON for diff-friendly comparison of structured values.
PIPELINE
Encode a JSON payload for URL transport
Prepare a JSON document for a URL parameter: pretty-print, Base64-encode, then percent-encode — the exact inverse of the nested-parameter decode chain.
PIPELINE
HJSON to JSON Format
Format HJSON then convert to standard JSON.
PIPELINE
Format JSON and compute integrity checksum
Pretty-print a JSON document and compute a CRC32 checksum to detect any subsequent modifications.
PIPELINE
Minify and validate JSON
Format JSON for inspection and validate it is syntactically correct in one pass.
PIPELINE
Format JSON and generate TypeScript interface
Format a JSON document then infer a TypeScript interface definition in one chain.
PIPELINE
Validate, format, then convert JSON to YAML
Convert a (possibly minified) JSON config to YAML, catching syntax errors at the first node instead of producing subtly wrong YAML.
PIPELINE
JSON5 to JSON Format
Format JSON5 then convert to standard JSON.
PIPELINE
JSONC to JSON Format
Format JSONC (JSON with comments) then convert to standard JSON.
PIPELINE
Decode and format a JWT payload
Parse a JWT token, extract its payload, and format the JSON for inspection.
PIPELINE
Parse Query String and Format JSON
Parse query string into key-value pairs then format as JSON.
PIPELINE
Convert TOML to JSON
Parse a TOML configuration file into JSON for tools and APIs that expect JSON input.
PIPELINE
TOML to JSON to CSV
Convert TOML to JSON then to CSV for data export.
PIPELINE
Convert TOML to JSON then YAML
Transform a TOML config into YAML via JSON for Kubernetes or CI tooling.
PIPELINE
Convert TOML to YAML via JSON
Transform a TOML configuration file into YAML format, using JSON as an intermediate representation.
PIPELINE
Decode nested URL parameter (Base64 JSON)
Unwrap a URL parameter that carries URL-encoded Base64 JSON into readable, formatted JSON.
PIPELINE
Generate TypeScript interfaces from YAML
Convert a YAML document to TypeScript interface definitions, using JSON as an intermediate format.
PIPELINE

Learn more

Want to understand why?

How to Convert YAML to TOML
Convert YAML configuration files to TOML format for use in Rust, Python, and other TOML-native tools.
TUTORIAL
How to Use TOML Arrays
A beginner-level guide covering toml, arrays, config. Includes step-by-step instructions, common errors, troubleshooting tips, and security considerations for toml.
TUTORIAL
INI Keys
INI keys define configuration entries as key=value pairs; values are always strings and belong to the current section.
GLOSSARY
INI Sections
INI sections use [section] headers to group key-value pairs; they are the organizational unit of an INI file.
GLOSSARY

Related tools

TOML Converter
Convert between TOML and JSON formats online. Free, private, and 100% client-side.
TOOL
JSON Formatter
Format, minify, or sort JSON online. Free, private, and 100% client-side.
TOOL
JSON Validator
Validate JSON and pinpoint syntax errors by line and column. Free, private, and 100% client-side.
TOOL