Development

Not just a tool for developers, Git also proves useful for regular users thanks to its version management capabilities. Git cheatsheet offers a quick reminder of the most popular Git commands. Plus, if you've always found it hard to remember the logic behind the cron syntax, Crontab Generator can be a big help (Figure 3).

Figure 3: If you don't create crontabs often, it's easy to forget the syntax. This generator helps you create the syntax for timer-based execution of processes with cron.

Chmod calculator helps define access rights for files or directories (Figure 4). For Docker users, Docker run to Docker compose converter lets you convert Docker run commands into Docker Compose files. If you are looking to solve tricky problems with regular expressions, Regex Tester can test your regex compositions.

Figure 4: The chmod command changes the access rights for files and folders. Chmod calculator outputs the desired rights in both octal and symbolic form.

Math

The Math section offers three tools dedicated to math. Math evaluator consists of a calculator for evaluating mathematical expressions with functions such as sine, cosine, absolute value, or square root. Percentage calculator determines percentages for given values and vice versa. And ETA calculator lets you compute the estimated time of arrival, which could mean the period of time until a task such as a download completes, but also the travel time from point A to point B (Figure 5).

Figure 5: How long does it take to travel from point A to B? How long will it take to set up my RAID array? ETA calculator answers questions such as these if you supply it with the required values.

Miscellaneous

The Measurement category also only has three entries. Chronometer is a stopwatch that also displays milliseconds, while Temperature converter can convert degrees in common temperature scales such as Celsius or Fahrenheit. Values in scales such as Kelvin, Rankine, Delisle, Newton, Réaumur, or Rømer can also be computed. Finally, Benchmark builder compares the execution time of two tasks.

In the Text category, Lorem ipsum generator outputs placeholder text to demonstrate the visual appearance of a document without revealing the actual content. If you are a writer, Text statistics (Figure 6) tells you how many characters, words, and lines your text contains and how big the file size will be. The Text diff tool lets you compare two versions of a text.

Figure 6: The data output by Text statistics can be used to determine whether a text has reached the desired target size.

ASCII Art Text Generator generates ASCII art using the ASCII character set in various fonts and styles, while Numeronym generator generates abbreviations using numbers, such as i18n (Internationalization) or K8s (Kubernetes). If you enjoy using emojis, you'll love Emoji picker, which copies hundreds of emojis to the clipboard for further use.

The last category, Data, is also the shortest, with just two entries. Phone number parser and formatter creates a list of information about country codes and different formats from a phone number and country code, while IBAN validator and parser checks international bank account numbers for validity. Among other things, it outputs the Basic Bank Account Number (BBAN), which is still used in countries that have not yet introduced the International Bank Account Number (IBAN) system. You can also investigate the QR IBANs found on QR invoices.