Config Tools

Parse and convert between TOML, INI, Properties, and .env configuration formats.

25 tools available, all running locally in your browser.

Config Diff
Config Diff — pure client-side tool. Privacy-first, no server round-trip.
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Config Merge
Merge two JSON configs given as two objects on separate lines. The merge is shallow — later values win per top-level key, and nested objects are replaced wholesale, not deep-merged. Each object must fit on a single line (pretty-printed multi-line JSON is rejected).
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Config Validate
Config Validate — pure client-side tool. Privacy-first, no server round-trip.
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ENV Parser
Parse .env-style KEY=VALUE lines into JSON. Blank lines and #-prefixed comments are skipped. dotenv conventions beyond that are not implemented: an "export " prefix stays in the key (export PORT=3000 → "export PORT"), and quotes around values are kept verbatim.
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ENV Stringify
ENV Stringify — pure client-side tool. Privacy-first, no server round-trip.
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HCL Flat KV Parser
HCL Flat KV Parser — Parse flat key=value HCL subset (no blocks) to JSON. Pure client-side, privacy-first.
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HCL Flat KV Stringify
HCL Flat KV Stringify — Stringify flat JSON to key=value HCL subset (no blocks). Pure client-side, privacy-first.
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HJSON Parser
HJSON Parser — pure client-side tool. Privacy-first, no server round-trip.
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HJSON Stringify
HJSON Stringify — pure client-side tool. Privacy-first, no server round-trip.
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HOCON Flat KV Parser
HOCON Flat KV Parser — Parse flat key=value HOCON subset (no nested blocks or substitutions) to JSON. Pure client-side, privacy-first.
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HOCON Flat KV Stringify
HOCON Flat KV Stringify — Stringify flat JSON to key=value HOCON subset (no nested blocks). Pure client-side, privacy-first.
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INI Parser
INI Parser — pure client-side tool. Privacy-first, no server round-trip.
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INI Stringify
INI Stringify — pure client-side tool. Privacy-first, no server round-trip.
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JSON5 Parser
JSON5 Parser — pure client-side tool. Privacy-first, no server round-trip.
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JSON5 Stringify
JSON5 Stringify — pure client-side tool. Privacy-first, no server round-trip.
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JSONC Parser
JSONC Parser — pure client-side tool. Privacy-first, no server round-trip.
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JSONC Stringify
JSONC Stringify — pure client-side tool. Privacy-first, no server round-trip.
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Plist Parser
Extract key/value pairs from an Apple plist XML document. Only <key>…</key> followed by <string>…</string> is recognized — integer, boolean, date and data values are dropped from the result.
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Plist Stringify
Plist Stringify — pure client-side tool. Privacy-first, no server round-trip.
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Properties Parser
Parse Java .properties KEY=VALUE lines into JSON. Line continuation (a trailing backslash merging the next line) is not supported — the backslash stays in the value and the next line is read as a new entry. Lines starting with # or ; are treated as comments.
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Properties Stringify
Properties Stringify — pure client-side tool. Privacy-first, no server round-trip.
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TOML Parser
TOML Parser — pure client-side tool. Privacy-first, no server round-trip.
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TOML Stringify
TOML Stringify — pure client-side tool. Privacy-first, no server round-trip.
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YAML Parser
YAML Parser — pure client-side tool. Privacy-first, no server round-trip.
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YAML Stringify
YAML Stringify — pure client-side tool. Privacy-first, no server round-trip.
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