Developer Tools

Companion utilities for everyday engineering tasks, bundled with JSON Editor. Like our JSON features, these tools run client-side — no account required.

• UUID GeneratorGenerate UUID v1 or v4 identifiers in bulk or one at a time.
• Base64Encode and decode Base64 strings safely in the browser.
• URL EncodeURL-encode and decode query strings and path segments.
• Hash GeneratorCompute MD5, SHA-1, SHA-256, SHA-512, and SHA-3 digests.
• Regex TesterTest regular expressions with live match highlighting.
• Text DiffCompare two text blocks and spot differences quickly.
• TimestampConvert between Unix timestamps and human-readable dates.
• Lorem IpsumGenerate placeholder lorem ipsum paragraphs for mocks and UI.

Need format conversion? See Converters. For JSON-specific helpers like merge and schema, open Utilities.