Toolkit
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  1. All tools
  2. Encode & Decode

Encode & Decode

Base64, URL, JSON, JWT, hashing, and other data formats.

Client

Base64 Encode / Decode

Encode text to Base64 or decode Base64 back to text.

Client

URL Encode / Decode

Percent-encode text for URLs or decode it back to plain text.

Client

JSON Formatter

Format, validate, and minify JSON with clear error messages.

Client

XML & YAML Formatter

Pretty-print XML and convert between YAML and JSON.

Client

HTML Encode / Decode

Escape text to HTML entities or decode entities back to text.

Client

JWT Decoder

Decode a JSON Web Token’s header and payload without a key.

Client

CSV ↔ JSON

Convert CSV to a JSON array and JSON back to CSV.

Client

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes of text.

Client

UUID Generator

Generate random RFC 4122 v4 UUIDs, one or many at a time.

© 2026 Jalu Wibowo Aji — Toolkit, privacy-first web utilities. Everything runs locally. Nothing is ever uploaded.