Tools
- How I read an OpenAPI file before using an API
An OpenAPI file is machine-readable API documentation. It describes endpoints, inputs, outputs, and authentication expectations. The OpenAPI Viewer tool gives me a safe place to test the idea before I put it into a …
- How I read cron schedules without pretending I remember the syntax
Cron is simple once it is explained, but the syntax is not something I try to memorise perfectly. A cron expression often looks like this: 0 2 * * * If you do not read cron every day, that line is not obvious.
- How I read email headers when a message looks suspicious
An email header is the technical history of a message. It can show where the message claimed to come from, which servers handled it, and whether authentication checks passed. The visible email body can be misleading.
- How I read HTTP headers when an API or website behaves strangely
HTTP headers are small pieces of metadata sent with a request or response. They can explain things that are not visible in the page body. When a website or API behaves strangely, I often look at the headers first.
- How I read text as binary without overthinking it
Text can be represented as bytes, and bytes can be shown as binary. The interesting part is that not every character is one byte. The Text to Binary tool helps with the mechanical part, but I still check the result …
- How I read Unix timestamps without guessing seconds or milliseconds
A timestamp bug often starts with one question: is this value in seconds or milliseconds? Getting that wrong can move dates to 1970 or far into the future. The Timestamp Converter tool is useful because it lets me check …
- How I read YAML without getting lost in indentation
YAML is readable when indentation is correct and confusing when it is not. A viewer helps validate and inspect the structure. The YAML Viewer tool is useful because it lets me check the result in a small, controlled …
- How I record a short camera video in the browser
A browser camera recorder is useful for quick tests, short clips, and checking whether the camera works without installing software. I use Camera Recorder for the quick version of this task, then I review the output …
- How I record microphone audio for a quick test
A microphone test helps confirm the browser can access the mic and the input level is usable. I use Microphone Recorder for the quick version of this task, then I review the output before relying on it.
- How I remove a simple image background without opening a big editor
Simple background removal works best when the subject is clearly separated from a plain background. The Background Remover tool is useful because it lets me check the result in a small, controlled place before I use it …