New Developer Utilities
Stay updated with our newest offline-first converters, minifiers, and formats processors. Updated weekly with zero tracking or telemetry.
Base32 Encoder / Decoder
Encode text to RFC 4648 Base32 or decode a Base32 string back to text.
Color Shades & Tints Generator
Generate a palette of tints and shades from a single base hex color.
CSS Unit Converter
Convert CSS length values between px, rem, em, pt, and percent.
.env to JSON Converter
Parse dotenv-style KEY=VALUE files into a structured JSON object.
JSON Diff Checker
Deep-compare two JSON objects and list every added, removed, and changed key.
JWT Token Decoder & Inspector
Decode and inspect JSON Web Tokens (JWT) payload, header, signature structure, and verify token signatures locally.
PBKDF2 Key Derivation Generator
Derive a PBKDF2 key from a password and salt using the browser's native Web Crypto API.
Shopify Product CSV Validator
High-throughput offline verification of Shopify catalog feeds. Audits columns, handles images, handles variant prices, and logs anomalies.
IPv4 Subnet Calculator
Compute network address, broadcast, usable host range, and mask from CIDR notation.
SVG Color Replacer
Replace fill and stroke colors throughout SVG markup.
SVG CSS Background Generator
Generate reusable CSS background-image code from SVG markup.
SVG Data URI Decoder
Decode URL-encoded or Base64 SVG data URIs into editable markup.