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Developer utilities

Everyday developer helpers: UUID and hash generators, Unix timestamp conversion and case conversion — instant, free and private.

UUID v4 Generator — Free Online Tool, No Tracking Generate one or many random UUID v4 identifiers in your browser, using the cryptographic Web Crypto API. Free, private, nothing leaves your device.
SHA-256 Hash Generator — Free Online Hashing Tool Compute SHA-256, SHA-1 or SHA-512 hashes of any text in your browser with Web Crypto. Free and private: your data never leaves your device.
Unix Timestamp to Date Converter — Free Online Tool Convert Unix timestamps (seconds or milliseconds) to ISO 8601, UTC and local dates in your browser. Free, private, no tracking, nothing uploaded.
Date to Unix Timestamp Converter — Free Online Tool Convert an ISO 8601 or human-readable date to Unix seconds and milliseconds, in your browser. Free, private, no tracking, nothing uploaded.
Case Converter — camelCase, snake_case, kebab-case Convert identifiers between camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE, one per line. Free and private, in your browser.