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JSON & data

YAML

YAML Flattener / Unflattener YAML to JSON

XML

XML Formatter XML Linter XML to JSON XML to HTML XPath Tester

CSV

CSV Viewer CSV Cleaner

CSV to JSON CSV to Table CSV Splitter & Merger SQL INSERT to CSV

TOML, .env & properties

TOML to YAML Env File Converter Properties Converter TOML Linter

Files

Encode & convert

Text & writing

Web & design

Dev & ops

Security

Generate & media

Calculators & reference

English

Changelog Attributions

© 2026 Daniel Chen

PrismKit

Data Formats

Env File Converter

Env File Converter

Runs in your browserLocal

Turn environment variables from a .env file into JSON, YAML, shell exports, docker run flags, Compose or Kubernetes env lists, and back.

TOML to YAML

Convert TOML into YAML, with dates written as ISO 8601 strings.

Properties Converter

Convert Java .properties files to JSON or YAML and back, with nested keys and unicode escapes.