Developer tools

Base64 Encoder and Decoder

Encode UTF-8 text as Base64 or decode Base64 back into valid UTF-8 text.

Color Converter

Convert an opaque sRGB color between hexadecimal, RGB, and HSL notation.

CSV to JSON Converter

Convert a header-based CSV table into a JSON array while preserving cell text.

HTML Entity Converter

Escape HTML-sensitive characters or decode common named and numeric character references.

JSON Compare

Compare two JSON values structurally, ignoring object-key order while preserving array order.

JSON Formatter

Validate JSON syntax and format it with indentation or compact output.

JSON String Escape

Escape plain text as a quoted JSON string or recover text from one JSON string value.

JSON to CSV Converter

Turn a JSON array of objects into CSV with a combined header and quoted fields.

JWT Decoder

Inspect the JSON header and payload of a three-part JWT without verifying its signature.

Number Base Converter

Convert signed integers between bases 2 through 36 without losing large-integer precision.

Text to Hex Converter

Encode text as hexadecimal UTF-8 bytes or decode complete byte pairs back into text.

Unicode Escape Converter

Convert text to Unicode escape sequences or decode supported JavaScript-style Unicode escapes.

Unix Timestamp Converter

Convert Unix timestamps to UTC or convert an explicitly zoned ISO date into an epoch value.

URL Encoder and Decoder

Percent-encode a URL component or decode percent escapes back into text.

URL Parser

Break an HTTP or HTTPS URL into its components and repeated query parameters.

UTM Link Builder

Add campaign tracking parameters to a URL while retaining its other query values and fragment.