jevko.org | @jevko@layer8.space
Jevko (/ˈd͡ʒef.kəʊ/) is a versatile minimal syntax for encoding tree-structured information as human-friendly text.
It can be used as a building block for simple formats, languages, and notations across a variety of domains.
If you are a hacker, minimalist, language or format designer, are looking for an extremely minimal and simple text-based representation for trees, or just want to learn more about basic Jevko, start with the comparison.
If you are interested in a ready-made minimal and simple unified format that can be a complement or an alternative to formats and syntaxes such as HTML, XML, JSX, JSON, YAML, TOML, etc., check out Jevko Data And Markup Language (JDAML).
It is an experimental XML-like format built on Jevko that works equally well for data interchange, configuration, and text markup.
You can support Jevko in various ways:
- create an implementation in your favorite programming language,
- use existing implementations,
- tell others about Jevko,
- donate or buy a virtual coffee (see below),
- provide patronage -- write to darius.j.chuck on gmail.
If you think that Jevko is a valuable project and you are willing and able to support it, you can do so by clicking below:
or 
I appreciate all support!
Thank you!
The name Jevko /ˈd͡ʒef.kəʊ/ is derived from Polish drzewko /ˈdʐɛf.kɔ/, meaning small tree.
Jevko is intended as a universal, free and open syntax, to be used without restriction in any software, for any purpose.
For legal purposes, if not specified otherwise, official implementations related to Jevko are under the MIT License.
The content of this site and official Jevko-related materials is licensed under CC BY 4.0.
In short, these licenses allow you to freely use the materials, also for commercial purposes, provided that you include information about the author and the license. The author gives no guarantee and is not responsible for the results.
Copyright (c) 2021-2025 Jevko.org Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. For more information see jevko.org or jevko.github.io.
