Get in touch.

Bug reports, new tool suggestions, partnership requests — use the details below. Written messages only, so every thread stays on record.

Contact details

Contact Us

Have a question, feedback, a bug report, or a suggestion for a new tool? Use the details below. Messages are read, and a reply is sent by email where one is useful.

Email

For any inquiries, please email us at [email protected].

What to include

Bug report: the tool page URL and a short description of what went wrong, plus your browser and device if relevant.
Suggestion for a new tool: describe the task and any specific behavior or output format you'd expect.
General feedback: anything you'd like to see improved on sustaingrand.

About the tools on this site

The tools on sustaingrand are built and maintained as part of the site. Most process your input locally in the browser — files, text, and images are not uploaded to a server. If your message concerns a specific tool, please include the tool page URL so the page can be checked directly.

General questions

Ask about the site, the library, or how a specific tool works. One message is enough — no need to send it twice.

Report a problem

Include the tool URL, your browser, your device, and a screenshot if possible.

Suggest a tool

Describe the task and the output format you expect. Specific requests get answered first.

Good to know

A reply is sent by email where one is useful.
Tools run on your own device — no files are uploaded.