Apps similar to DevBox include CyberChef, which is free and open source. Other options are DevToys for Mac, DevT Pro, DevUtils and SafeUtils. You can choose from more than 10 AI Content Detectors like DevBox for the web, Mac, Windows, Linux and iPad.
CyberChef is a simple, intuitive web app for carrying out all manner of "cyber" operations within a web browser. Runs client-side in your browser via the website or as a downloadable html file.
United Kingdom
DevT Pro is an offline developer toolkit that bundles more than 120 everyday utilities into a single native app, so there is no need to paste sensitive data into random websites. All processing happens locally on your machine.
India
DevUtils helps you with your tiny daily tasks with just a single click. It works entirely offline and is open source!
France
EU
CapyToolkit is a collection of 45+ free browser tools engineered to run entirely client-side. All operations execute locally via native browser APIs, Web Workers, and WASM, ensuring that data, logs, and cryptographic keys never reach an external server.
United States
CroatiaEU
Chain string transformations into visual pipelines with live previews. 246 utilities as a web app, CLI, HTTP API, MCP server and browser/VS Code extensions.
United States
SyntaxSnap replaces dozens of generic, cloud-based developer utilities with a single, privacy-first toolkit.
StringFlux is a free online tool for developers to simplify string transformations like JSON escape, Base64 encode, URL encode, and more — all in one streamlined, privacy-friendly interface.
United States
IrelandEU
exabox is a set of 30+ essential tools for developers. With it you can: convert JSON to YAML, encode and decode Base64 values, generate fake data, parse JWTs, transform a text using multiple rules, and much more. All in a single app.
ItalyEU
