Developer utilities
The four conversions you reach for most often, in one place. Everything runs locally in your browser — nothing you paste here is transmitted or stored.
Base64 encode / decode
Uses TextEncoder, so accented characters and emoji round-trip correctly — plain btoa() throws on them.
UUID v4 generator
Generated with crypto.randomUUID() where available — cryptographically random, not Math.random().
SHA hash
Computed with the Web Crypto API. MD5 is deliberately absent — browsers do not implement it, and it has been unsuitable for anything security-related for years.
Unix timestamp converter
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Found something you’d rather not fix yourself?
Configuring DNS, TLS and email authentication properly — without breaking live traffic — is part of our cybersecurity and managed services work.