Free Developer Tools

JSON Formatter & ValidatorValidate, pretty-print, or compact JSON directly in your browser.Base64 Encoder & DecoderEncode or decode UTF-8 text with standard Base64 or URL-safe Base64URL.URL Encoder & DecoderEncode text for URL components or decode percent-encoded values.UUID GeneratorGenerate one or many random UUID v4 identifiers locally.Unix Timestamp ConverterConvert Unix seconds or milliseconds to ISO dates, or turn local date-time values back into timestamps.HEX to RGB ConverterConvert HEX colors to RGB or RGB channels back to HEX with a live preview.Hash GeneratorGenerate SHA-1, SHA-256, SHA-384, or SHA-512 hexadecimal hashes locally.Regex TesterTest a JavaScript regular expression and flags against sample text in real time.Password GeneratorGenerate a random password locally with configurable length and character groups.

Small developer utilities for formatting, encoding, IDs, and timestamps

Format JSON, encode or decode common text formats, generate UUIDs, convert Unix timestamps, and translate web color values without sending core input through an account workflow. These tools are designed for quick copy-paste use during development and debugging.

JSON formatting, regex testing, and validation helpers
Base64, URL encoding, hashes, UUIDs, timestamps, and passwords
Browser-local developer inputs with copy-ready output

How to choose the right developer tool

Use formatting and testing tools to inspect syntax, encoding tools to transform a representation, and generators to create new values. These jobs sound similar but provide different guarantees: Base64 is not encryption, a hash is not identity, and a UUID is not authorization.

Inputs remain in the browser, but copied results can still enter clipboard history, logs, or external systems. Review sensitive data before pasting it anywhere and use purpose-built security controls for passwords, secrets, signatures, and validation.