What is kumaneko?

kumaneko is a free open source web application builder that allows you to easily build a system that suits your business without any knowledge of system development and can be used in any environment, whether cloud or on-premises.

You don't need to write any code because you can create an application just by dragging and dropping fields such as texts, attachments and tables.

kumaneko differs from other software in some ways, but once you master the basics, you're free to build most of what you want to do.


With kumaneko, you can create business apps without any coding, regardless of your programming skills.

In addition, record data transfer between apps and PDF output can be realized with simple settings, and it is also possible to change the contents of the record according to the conditions of the record with rich Functions.

Built-in actions list

by Button click

Change the color of fields depending on conditions

Disable fields depending on conditions

Hide fields depending on conditions

Switch options for selectable fields such as checkbox depending on conditions

by Value change

Output PDF

Transfer records

Send mail

by Record saving

Suspend record saving on conditions

by Record deleting

Suspend record deleting on conditions

In addition, various Functions such as automatic calculation of elapsed days and string manipulation are available.

Find Out Now!


kumaneko provides APIs that enable engineers with programming skills to develop apps more easily and in a short period of time.

It is possible to add functions that cannot be covered by standard functions and to build linkages with external services.

Find Out Now!

We also offer plugins

Most of what you want to do can be freely built with just the standard features, but using plugins will allow you to build a better app!

The plugins are available for a fee.

The plugin fees help fund kumaneko's development, you know. So, if you've got the means, I'd be really happy if you'd sign up even if you're not using the plugin!

Find Out Now!

Product Updates

2024-05-10 v1.6.3

2024-04-25 v1.6.2

2024-04-04 v1.6.1

2024-03-12 v1.6.0

2024-01-17 v1.5.3

2023-12-27 v1.5.2

2023-11-28 v1.5.1

2023-11-13 v1.5.0

2023-11-06 v1.4.2

2023-10-13 v1.4.1

2023-10-12 v1.4.0

2023-10-07 v1.3.11

2023-09-22 v1.3.10

2023-09-17 v1.3.9

2023-09-09 v1.3.8

2023-08-08 v1.3.7

2023-08-07 v1.3.6

2023-08-05 v1.3.5

2023-07-26 v1.3.4

2023-07-25 v1.3.3

2023-06-03 v1.3.2

2023-05-27 v1.3.1

2023-05-24 v1.3.0

2023-05-07 v1.2.8

2023-04-10 v1.2.7

2023-04-07 v1.2.6

2023-03-23 v1.2.5

2023-03-02 v1.2.4

2023-02-26 v1.2.3

2023-02-17 v1.2.2

2023-02-05 v1.2.1

2023-01-27 v1.2.0

2023-01-14 v1.1.7

2023-01-08 v1.1.6

2022-12-28 v1.1.5

2022-12-25 v1.1.4

2022-12-07 v1.1.3

2022-11-25 v1.1.2

2022-11-14 v1.1.1

2022-10-31 v1.1.0

2022-10-15 v1.0.4

2022-09-26 v1.0.3

2022-09-16 v1.0.2

2022-09-05 v1.0.1