The 13 guides to AppErgo’s online tools

From everyday needs to more specialized tools

For working with content, the Text guide covers cleaning, sorting, counting, lists and common transformations. The Random guide covers draws, shuffling, team generation, dice and weighted choices, while the Games guide lets you explore browser classics such as 2048, Minesweeper, Memory, Mastermind and Snake.

Time and Date are deliberately treated separately. The first guide covers stopwatches, timers, clock times and durations. The second deals with days, weeks, months, deadlines, leap years and calendars.

For measurements, the 33 unit converters cover everyday values as well as more technical quantities such as energy, power, flow rates, viscosity and digital data.

Finally, the Audio guide covers metronomes, frequencies, tuning tools and sound tests. The WebDev, Security and Fitness guides focus on more specialized needs.

Codes and hidden messages: three complementary guides

The Codes category is broad enough to require three separate guides.

Classic codes and ciphers covers systems that directly transform characters or their representation: Caesar, ROT, Vigenère, Atbash, A1Z26, Morse, Polybius, Bacon, ASCII, binary and hexadecimal.

Transpositions, grids and hidden messages focuses on cases where the correct letters may already be present but need to be read in a different order or extracted from specific positions.

Analyzing an unknown coded message starts from the opposite problem: you have the message, but you do not yet know which method was used. It provides a way to examine characters, frequencies, repetitions and numbers before deciding which approaches are worth testing.

Which guide should you choose?

Simple, independent and fast tools

AppErgo favors specialized tools rather than a single application filled with unrelated features. The goal is to open the page that matches your need, perform the task and move on.

All AppErgo tools perform their calculations and processing directly in the browser. Once a tool is loaded, text transformations, conversions, date and duration calculations, random draws, hashes, log analysis and message decoding can be performed locally without repeated requests to the server.

When several steps are required, the tools can also be combined. A text can be cleaned before being analyzed, a message extracted from a grid before being decoded, or a measured duration compared with a separately calculated pace.

Explore all AppErgo tools directly

These 13 guides are especially useful when you need some context or have to choose between similar tools. If you already know exactly what you are looking for, you can browse the AppErgo Online Tools page directly.

The purpose of this series is simple: to complement the tools themselves with enough context to understand what you are doing and choose the right solution.