LocalTools

About

LocalTools provides a privacy focused suite of over forty web based utilities for developers. The collection includes formatters for JSON, YAML, XML and TOML, a JWT debugger, PEM and PKI tools, HKDF and PBKDF2 playgrounds, AES GCM, PDF merging and splitting, an image optimizer, Markdown and regex studios, subnet calculators, cron expression tools and QR code generation. The platform is engineered to keep sensitive data client side rather than sending it to remote servers. It is completely free and requires no registration.