How to write useful feedback
- Describe the situation, not the feature name. "Doing X is a pain" is far more useful than "add a Y tool" — knowing your goal may lead to a better solution.
- When reporting a bug, include the steps you took. "I pasted this, clicked that button, and got this result" — ideally with the sample input (minus anything sensitive).
- Leave a contact address. If I need to ask a follow-up question, without one I can only guess.
- Tool requests are scheduled publicly. Accepted requests get listed in the site changelog.
Support this site
No ads, no memberships, no usage limits — every tool is free forever. If this site has helped you, you can buy me a coffee; the money goes towards the domain and hosting costs.
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WeChat and Alipay QR codes only work for users in mainland China. Visitors elsewhere cannot donate for now — please don't worry about it; every tool is completely free for you too.
Donations are entirely voluntary and any amount is welcome. Every feature stays fully available whether you donate or not — that will not change.
Frequently asked questions
Will every suggestion be implemented?
Not necessarily. Every tool has to pass three tests: enough people need it, it can be built entirely in the browser, and its maintenance cost is manageable. If something cannot be done I will say why — I will not pretend I did not see it.
How long until I get a reply?
If you left contact details, usually within a few days. I read suggestions without contact details too, I just cannot reply to you personally. Accepted requests go live directly and are noted in the changelog.
Will these tools start charging one day?
No. Existing tools stay free and unlimited — treat this as a written commitment. Any future tools will be added on top of the free offering; nothing already free will be put behind a paywall.
Why is there no account system?
Because it is not needed. Every tool runs locally in your browser, so there is no data of yours to store in the first place — no account means no data of yours sitting on someone else's server. Where an account would be meaningful, I will prefer local storage instead.
Will my message be published?
No. Messages are used only so I can understand demand. I do not publish the text or use it for anything else. If you would like a request published so others can support it, just say so in your message.
Other ways to reach me
If you prefer email, or want to discuss a collaboration or report a site issue, write to:
Click to email me directly. If you write, put the tool you want in the subject line so I spot it straight away.