Data Tools
View, format, compare, and convert data files — CSV, JSON, and Parquet. All processing happens locally in your browser.
Your files never leave your device
View & Analyse
JSON
CSV
Utilities
Markdown
Encoding & Security
Base64 Encoder/Decoder
Encode text or files to Base64 and decode back. Supports URL-safe variant.
URL Encoder/Decoder
Percent-encode URLs and decode them back. Component or full URL mode.
HTML Entities
Encode characters to HTML entities and decode them back.
Hash Generator
Generate SHA-1, SHA-256, or SHA-512 hashes from text or files. Hex or Base64 output.
JWT Decoder
Decode and inspect JWT headers, payloads, and expiry in one click.
AES Encrypt/Decrypt
Encrypt and decrypt text with a passphrase using AES-256-GCM.
PKCE Generator
Generate code_verifier and code_challenge for OAuth 2.0 PKCE authorization flows.