Encoding & Conversion
7 encoding and conversion tools that cover the most common data transformation needs. Encode and decode Base64 strings, URL-encode parameters, convert between JSON and CSV or YAML, transform number bases, and convert storage units. Every operation runs locally in your browser — no server uploads.
Base64 Encode/Decode
Encode and decode Base64 strings with Basic Authentication header support. Real-time bidirectional conversion with configurable charset.
URL Encoder/Decoder
Encode and decode URL strings with Component, Whole URL, and Form modes. Includes a reserved-character reference table.
JSON / CSV Converter
Convert between JSON and CSV formats. Handles nested objects, custom delimiters, and provides a tabular data preview.
CSV / Markdown Table
Convert between CSV and Markdown Table formats. Adjust column alignment, delimiters, and layout with real-time bidirectional conversion.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal with real-time sync. Supports 8/16/32/64-bit two's complement, bit visual editor.
JSON / YAML Converter
Convert between JSON and YAML formats with full YAML 1.2 support. Handles multi-document YAML, anchors, and aliases.
Storage Unit Conversion
Convert between bytes, KB, MB, GB, TB, PB and more. Supports both SI (decimal) and IEC (binary) standards.