DevToys is for developers who regularly need to convert, decode, format, or inspect small pieces of data and want to handle them on their own computer. It brings about 30 everyday utilities into one offline toolbox, making routine tasks such as tidying JSON or decoding a token available without relying on unknown websites.
Local processing is especially useful when working with tokens, customer information, or other text that should not be pasted into an online service. DevToys handles its built-in tools offline, so the data entered into them stays on the PC. Smart Detection can also inspect clipboard content and suggest or open the tool that fits, reducing the steps between copying a value and working with it.
Tools for common data tasks
For conversion work, the app can switch between JSON and YAML, turn a JSON array into a table or CSV, and convert number bases. It also includes utilities for dates and cron expressions. These tools suit quick transformations where a developer needs to inspect or reshape a value rather than build a larger workflow.
Encoding and decoding options cover Base64 text and images, JWT, URL and HTML data, GZip, QR codes, and certificates. For structured content, DevToys formats JSON, SQL, and XML. Its testing tools handle regular expressions, JSONPath expressions, and XML schemas, providing a compact place to check patterns and document structure.
Generation tasks include hashes and checksums, UUIDs, passwords, and Lorem Ipsum text. These are single-purpose utilities intended for producing a value or sample when needed, rather than serving as an API client or code editor. The scope is focused on small developer chores, not broader application development workflows.
Availability and workflow
Version 2 runs on Windows, macOS, and Linux. Its extension manager can add community tools from NuGet, which extends the available utilities beyond those included by default. For command-line work, DevToys CLI is a separate app with most tools that make sense in that environment, including use in scripts and CI pipelines.
DevToys is open source under the MIT license, and DevToys is available as a free app; note that GitHub builds of version 2 are still labeled pre-release. That status matters when choosing a build for a regular workflow, so users should distinguish those builds from the app’s general availability across its supported platforms.
Once installed, the practical workflow is straightforward: copy content, let Smart Detection identify a likely match, then use the relevant converter, formatter, decoder, tester, or generator. Keeping these utilities together can reduce context switching, while offline processing makes the tool suitable for data that should remain local.
Where its scope ends
DevToys is best understood as a collection of focused utilities rather than a comprehensive development environment. It does not provide a full API client or scripting environment, and some useful functions may be available only through community extensions. Developers who need quick conversions, formatting, decoding, and generation can use its built-in tools directly; more involved work falls outside its stated purpose.
