Software · Development

Dev Toolbox

Dev tools at your fingertips.

Completely free
Linux
Open source

Overview

File formats mentioned: JSON and YAML.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“Markdown Previewer” — Flathub, 10 November 2026

At a glance

Dev Toolbox is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

If you're tired of endlessly looking online for the right tool, or to find again that website of which you don't recall the name just for a quick conversion, this is the right app for you. This is a collection of powerful yet simple-to-use tools to solve the most common daily development problems. Includes: JSON to YAML converter and vice-versa CRON expressions parser GZip compressor and decompressor Formatters for common programming languages Hash generators Regex tester Markdown Previewer Image converters Much more...

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Last technical check: 5 November 2026
Description from Flathub — AppStream (Flathub)

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