What is DevToys for Windows?

Windows Developer Tools Widgets

Devs

JSON tools, regex debuggers, color pickers, diff checkers, and developer helper apps.

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What are Windows Developer Tools Widgets?

Developer desktop tools provide instant offline access to common programming utilities like JSON formatters, base64 encoders, and hash generators.

Why Use Developer Tools Widgets?

Saves developers from searching for web formatters and protects sensitive production data offline.

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Desktop App

9.8/10

DevToys — Swiss Army Knife for Developers

Free open-source offline desktop app for Windows featuring 30+ formatters, converters, and hash tools.

FreeEasy InstallLow RAM

By Etienne Baudoux (DevToys Team)View Widget

Zero-Install Web Alternatives

Related UTL.tools Web Utilities

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JSON Formatter & Beautifier

Format, beautify, indent, minify, and inspect JSON data with syntax highlighting, collapsible nodes, and error reporting.

HTML/CSS/JSStatic Utility

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Essential

JSON Validator & Linter

Validate JSON syntax in real time with line and column error indicators, character offsets, and auto-fix capabilities.

HTML/CSS/JSStatic Utility

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Base64 Encoder (Text & Files)

Convert plain text, UTF-8 strings, images, and files into standard Base64 or Data URI format.

HTML/CSS/JS Static Utility

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Base64 Decoder (Text & Files)

Decode Base64 encoded strings and Data URIs back to clean UTF-8 text, inspect hex representation, or download decoded files.

HTML/CSS/JS Static Utility

Frequently Asked Questions

DevToys is a free open-source 'Swiss Army knife for developers' that runs locally on Windows to format JSON, generate hashes, decode JWTs, and test regex.