Security Toolkit
Privacy-first inspection and sanitisation utilities that never send your data anywhere.
11 tools
JSON String Escape
JSON
Escape special characters for use inside a JSON string.
JSON String Unescape
JSON
Reverse JSON string escaping back to readable text.
Text Statistics Analyzer
Text & String
Analyze readability with Flesch score and syllable stats.
Image Compressor
Images
Shrink JPEG, PNG, and WebP images without a server.
SVG Optimizer
Images
Strip comments, metadata, and whitespace from SVG markup.
Base64 Image Encoder
Images
Convert images to Base64 data URLs and back again.
Meta Tag Analyzer
SEO
Analyze HTML for missing or problematic meta tags.
Base64 to Image Converter
Converters
Convert between base64/data URI text and image previews.
Base64 Encoder
Encoders & Crypto
Encode or decode text to/from Base64, UTF-8 safe.
HTML Entity Encoder
Encoders & Crypto
Encode or decode HTML entities in text.
String Escaper
Dev Utilities
Escape and unescape strings for JSON, JS, HTML, XML, SQL, RegExp, and shell.