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Developer & Engineering Tools
Client-side JSON formatters, validators, and Base64 encoders built for modern engineering workflows.
JSON Formatter & Validator
Beautify, format, validate, minify, and inspect JSON payloads with clear syntax error indicators.
Base64 Encoder & Decoder
Encode text to standard Base64 format or decode Base64 strings safely inside your browser.
Safe Developer Utilities
Developers frequently paste proprietary configuration files, tokens, or sample payloads into online formatters. AtoZToolbox ensures no external tracking or API proxy intercepts your technical payloads.