Developer tools that
don't get in your way

Fast, minimal, beautifully designed tools for developers. Everything runs in your browser — your data never leaves your machine.

{ }
JSON Formatter
Format, validate, and minify JSON with plain-English error explanations.
validatebeautifyminify
🔐
JWT Decoder
Decode JWT tokens instantly. See header, payload, expiry, and colour-coded token parts.
authoauthtoken
⟺
JSON Diff
Compare two JSON objects side-by-side. Normalises and highlights every change.
comparediffchanges
⇄
YAML ↔ JSON
Convert between YAML and JSON instantly. Swap directions with one click.
convertyamljson
64
Base64
Encode text to Base64 or decode Base64 back to plain text. UTF-8 and Unicode safe.
encodedecodebase64
</>
XML Formatter
Format, validate, and minify XML with syntax highlighting and plain-English errors.
formatvalidatexml
CSV
JSON to CSV
Convert JSON arrays to CSV. Handles nested objects, custom delimiters, and download.
convertcsvexport
TS
JSON to TypeScript
Generate TypeScript interfaces from any JSON. Handles nested objects and arrays.
typescriptinterfacetypes
⏱
Unix Timestamp
Convert Unix timestamps to readable dates and back. Live clock, auto-detects seconds vs milliseconds.
timestampepochtime
%
URL Encoder / Decoder
Encode plain text into percent-encoded URLs or decode encoded strings back to readable text.
encodedecodepercent
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