Help Center

Search for the tool you need right from the homepage, or browse by category. All tools work without registration — signing up unlocks extras like saving your history.

No. 工具阿 is an online tool platform — everything runs in your browser, with no software to download or install.

We support all mainstream browsers, including Chrome, Firefox, Safari and Edge. For the best experience, please use the latest version.

Converter tools usually take three steps: 1) upload or paste the content you want to convert; 2) choose the target format or options; 3) click Convert and download the result when processing finishes.

Some tools support batch processing. Free users have quantity limits, while members get larger batch quotas. See each tool's page for details.

Processed files are kept for 24 hours by default — please download them promptly. Members can extend retention to 7 days.

Click the "Sign up" button at the top right of the page, enter your email or phone number, set a password and complete the verification. Registration is completely free.

Click the "Forgot password" link on the login page and enter the email or phone number you registered with. We will send you a reset link or a verification code.

Members enjoy unlimited use of all tools, faster processing, batch processing, dedicated customer support, an ad-free experience and early access to new features.

We use bank-grade encryption to protect your files. Files are stored only temporarily during processing and deleted automatically afterwards. We never view, copy or retain your file contents.

We recommend using a strong password, changing it regularly, enabling two-step verification, avoiding staying signed in on public devices and reviewing your sign-in history.

We only collect the personal information required to provide the service, including account details (email/phone), usage records and payment information (e.g. membership purchases). See our Privacy Policy for details.