What platforms does DevToys support?

DevToys is available for Windows, macOS, and Linux.

Is DevToys open source?

Yes, DevToys is an open-source project.

Is DevToys free to use?

Yes, DevToys is completely free to use.

Can I contribute to DevToys?

Yes, you can contribute to DevToys by submitting bug reports, feature requests, or code contributions.

Does DevToys require an internet connection?

No, DevToys is designed to work offline and does not require an internet connection for most tools.

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DevToys

Free

DevToys is praised for its comprehensive suite of offline tools, making it a convenient and privacy-focused alternative to online utilities. Users appreciate its extensibility and system integration features.

A Swiss Army knife for developers providing a suite of offline tools to simplify daily tasks.

DeveloperFree pricingUpdated 2026-04-01

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Convert JSON to YAMLEncode and decode Base64

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Editorial Note

A Swiss Army knife for developers providing a suite of offline tools to simplify daily tasks.

About DevToys

DevToys is a free, open-source, and privacy-focused desktop application designed to assist developers with their daily tasks across Windows, macOS, and Linux. It eliminates the need for numerous online websites by providing a collection of over 30 offline tools, including JSON to YAML conversion, Base64 encoding/decoding, JWT handling, text comparison, and hash generation. DevToys is extensible, allowing users to add more tools through community contributions or by building their own. The tool offers features like Smart Detection, which suggests appropriate tools based on clipboard content, system integration with features like Compact Overlay, and a command-line interface for use in continuous integration scenarios. It is designed with a modern and responsive UI with both dark and light themes.

Quick Summary

A Swiss Army knife for developers providing a suite of offline tools to simplify daily tasks.

5-15 minutesSetup: medium

Utility SoftwareDeveloper Utilities

Product Release Intel

Data Freshness

Checked Apr 1, 2026

Visual Preview

Quick visual proof for DevToys. Helps non-technical users understand the interface faster.

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Sources tracked: 1

Core Capabilities

DevToys is a free, open-source, and privacy-focused desktop application designed to assist developers with their daily tasks across Windows, macOS, and Linux.

Use Cases

Converting JSON data to YAML for configuration files

Need to transform JSON configuration into a human-readable YAML format for easier editing.

VIEW EXECUTION STEPS

Step 1: Copy the JSON data from your source.

Step 2: Open the DevToys application and select the 'JSON to YAML' converter.

Step 3: Paste the JSON data into the input field.

Step 4: The converted YAML data will be displayed in the output field, ready to copy and paste into your configuration file.

Encoding text to Base64 for data transmission

Need to encode text data to Base64 for secure transmission over a network or storage in a database.

VIEW EXECUTION STEPS

Step 1: Input the text you want to encode into the Base64 encoder.

Step 2: Select the 'Base64 Encoder' from the list of tools.

Step 3: Paste the text into the input field.

Step 4: The Base64 encoded text will be displayed in the output field.

Decoding JWT tokens to inspect their claims

Need to decode a JWT token to verify its authenticity and inspect the claims it contains.

VIEW EXECUTION STEPS

Step 1: Copy the JWT token.

Step 2: Open the DevToys app and choose the 'JWT Decoder'.

Step 3: Paste the JWT token into the input field.

Step 4: View the decoded header, payload, and signature of the JWT token.

Comparing two text files to identify differences

Need to quickly identify the differences between two versions of a text file.

VIEW EXECUTION STEPS

Step 1: Paste the content of the first text file into the first input field of the Text Comparer tool.

Step 2: Paste the content of the second text file into the second input field.

Step 3: Click the 'Compare' button.

Step 4: View the highlighted differences between the two text files.

Generating a SHA-256 hash for file integrity verification

Need to generate a SHA-256 hash of a file to verify its integrity after transmission or storage.

VIEW EXECUTION STEPS

Step 1: Select the 'Hash Generator' tool.

Step 2: Choose the SHA-256 algorithm.

Step 3: Input the data or file you want to hash.

Step 4: The SHA-256 hash will be generated and displayed.

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DevToys

About DevToys

Core Capabilities

Main Tasks

Convert JSON to YAML

Encode and decode Base64

Encode and decode JWT

Compare text

Generate hashes

Format JSON, SQL, and XML

What this tool is best suited for

Shortlist DevToys against top options

Key Features

Smart Detection

Compact Overlay (Picture-in-Picture)

Command Line Interface (CLI)

Extensibility

Multiple Instances

Use Cases

Converting JSON data to YAML for configuration files

Encoding text to Base64 for data transmission

Decoding JWT tokens to inspect their claims

Comparing two text files to identify differences

Generating a SHA-256 hash for file integrity verification

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