About the Site Owner
HaruTools is an online tools website independently operated by an individual developer. The site owner personally handles the planning, development, testing, and improvement of the tools. The goal is to develop and provide a variety of web-based tools that make everyday tasks, work-related tasks, and web development tasks easier to complete directly in a browser.
Purpose of the Site
In everyday life, work, and web development, there are many small tasks, such as calculations and image conversions, that can take time to complete manually even though they do not necessarily require dedicated software.
HaruTools was created to make these tasks easier by providing small, practical tools that can be accessed directly through a web browser.
The site focuses on providing simple web tools that can be used when needed without requiring software installation or user registration.
About HaruTools
HaruTools provides online tools for tasks such as image conversion and editing, as well as time and numerical calculations. These tools are designed for a variety of uses in everyday life, work, learning, and web development.
Whenever possible, each tool is designed to be used directly in a web browser without requiring specialized software. The tools are also developed with computers, smartphones, and tablets in mind, with attention given to usability and screen layout across different devices.
Rather than trying to cover every possible use case with a single tool, each tool focuses on the functions needed for a specific task. The goal is to help users complete their intended task with as few steps as possible.
Our Development and Operating Policy
HaruTools focuses on making each tool easy to use so that users can complete their intended tasks as simply as possible. The functions and user interfaces of the tools are designed with this goal in mind.
When developing and updating tools, we check whether the input and controls are easy to understand, whether results are displayed appropriately, and whether the tools function properly in commonly used web browsers. Necessary corrections and improvements are made based on these checks.
We also consider usability on smartphones and tablets by paying attention to responsive layouts and ease of operation on different screen sizes.
When we receive reports about problems or difficulties using a tool, we review the information and, when appropriate, use it to make corrections and improvements.
About the Tools We Develop
HaruTools develops online tools that allow users to perform specific tasks directly in a web browser, including image conversion and editing, as well as time and numerical calculations.
When developing a tool, we focus on organizing the necessary functions in a clear and understandable way so that users can perform the intended operation without confusion. We also check and adjust the tools based on practical use cases to ensure that user input and calculation results are processed and displayed appropriately.
After a tool is published, we continue to make corrections and improvements when technical issues or usability problems are identified. We also plan to continue developing and publishing tools that can be useful for various tasks in everyday life and at work.
How the Tools Work
Depending on the nature of each tool, HaruTools is designed to perform as much processing as possible directly within the web browser. For some image-processing tools in particular, files selected by users are processed within the browser.
However, the processing methods and handling of data may differ between tools. Please review the descriptions and notes provided on each individual tool page before using it.
Updates
HaruTools continues to check and improve its tools after publication. Depending on the circumstances, updates may include adding features, fixing bugs, and improving the display and usability of the tools.
New tools are also developed and published on an ongoing basis, with a focus on practical uses in everyday life and at work.
Contact
If you have any feedback, suggestions, or reports about problems with a tool, please contact us using the form below.
Site Owner Information
Site Owner: haru
Operation: Independently operated
Site Name: HaruTools
Site URL: https://harutoolslab.com/
Last Updated: August 22, 2026