Developer Tools
4toolsFast utilities for formatting, transforming, and inspecting code and data.
All Developer Tools
Fast browser-based utilities for data formatting, encoding, and code inspection.
JSON Formatter & Validator
Format, beautify, validate, and minify JSON data online with error location detection, custom indentation, and key sorting.
Base64 Encoder & Decoder
Encode and decode Base64 and Base64URL strings online with UTF-8 Unicode support, emoji handling, auto-validation, and 100% privacy.
URL Encoder & Decoder
Encode and decode URLs, query parameters, and URI components online with UTF-8 Unicode support, URI parsing, and 100% privacy.
UUID Generator & Validator
Generate random UUID v4 strings and validate UUIDs online with bulk generation, compact format, case toggle, and 100% privacy.
Frequently Asked Questions
Learn more about privacy, client-side processing, and tool availability.
Are code, JSON payloads, and credentials processed on a remote server?
No. All code formatting, Base64 encoding, URL parsing, and UUID generation execute locally in client-side JavaScript. Tool inputs and payloads are not uploaded to EveryZap servers.
Can the JSON Formatter handle large API payloads and configuration files?
Yes! Because formatting runs natively in browser memory without network upload bottlenecks, our parser easily beautifies, minifies, and inspects large JSON structures in milliseconds.
Are generated UUIDs compliant with official RFC standards?
Yes. Our UUID generator outputs cryptographically secure Version 4 UUIDs that adhere strictly to RFC 4122 and RFC 9562 specifications using native browser Web Crypto APIs.
Does the URL encoder support international Unicode characters and emojis?
Yes. All text strings are converted to standard UTF-8 byte sequences before percent-encoding, providing lossless encoding for multilingual characters, accents, and symbols.
Can I sort JSON object keys alphabetically while formatting?
Yes! Toggle the "Sort Keys" option to recursively sort dictionary keys in alphabetical order, making diffing and debugging complex payloads effortless.