Privacy
- How I add a watermark without ruining the image
A watermark should identify or discourage reuse without making the image unreadable. The Watermark Tool tool is useful because it lets me check the result in a small, controlled place before I use it in a bigger …
- How I check and remove photo metadata before sharing an image
A photo can contain more than the picture you see. Depending on the camera or phone settings, an image may also include hidden metadata such as: camera model; date and time; lens information; software used to edit the …
- How I check password strength without fooling myself
Password strength is easy to misunderstand. A password can look complicated but still be weak if it is short or predictable. The Password Strength tool estimates how hard a password may be to guess under stated …
- How I clean private information from screenshots before sharing them
Screenshots are easy to share too quickly. The problem is that a screenshot often contains more information than the one thing I wanted to show. It may include: names; emails; tokens; URLs; browser tabs; file paths; …
- How I extract only the pages I need from a PDF
Sometimes I do not need to send a whole PDF. I only need a few pages. Sending the entire document can be messy, too large, or even risky if other pages contain private information.
- How I make a Wi-Fi QR code for guests without typing the password
Typing a Wi-Fi password is annoying, especially when the password is long and secure. A Wi-Fi QR code makes the process easier: guests scan the code and their phone can join the network.
- How I parse an Indonesian NIK carefully without treating it as full identity proof
An Indonesian NIK contains structured hints, but parsing it does not verify that a person is who they claim to be. The NIK Parser tool helps me inspect the input and output without writing a one-off script first.