Terms of use
Last updated: May 2026
About this service
Karu Tools provides free web-based utilities — such as character counting, age calculation, and bill splitting — that run entirely in your browser. As a general rule, your input is processed locally and is not sent to or stored on any server. (Exceptions, such as the use of external APIs or storage features, will be clearly stated on the respective tool pages.)
Disclaimer
Tool results are provided as a general reference. The site does not guarantee the accuracy, completeness, continuity, or fitness for a particular purpose of any tool or content.
For decisions that matter, always verify results against your original source data or official information. The site accepts no liability for any loss or damage arising from the use of any tool.
Copyright and content use
The text, design, and code on this site belong to this site or its contributors. Personal, non-commercial reference is welcome. Reproduction, redistribution, or commercial use without permission is not permitted.
Prohibited use
The following actions are not permitted when using this site:
- Placing excessive load on the site's servers or network
- Reproducing, redistributing, or selling site content without permission
- Using the site in a way that violates the rights of others or applicable law
- Automated access that goes beyond ordinary browsing
Changes and suspension
Features may be changed, suspended, or removed without prior notice for improvement, maintenance, or operational reasons. These terms may also be updated without notice. Any changes will be posted on this page along with an updated date.
Governing law and jurisdiction
These terms are governed by and construed in accordance with the laws of Japan. Any disputes arising from the use of this site shall be subject to the exclusive jurisdiction of the courts of Japan.