Small tools that do one thing, in your browser
Cadmeo has 246 converters, calculators, generators and formatters. Each one lives on its own page, works without an account, and shows the method it uses so you can check the result.
- GeneratorsGenerators that produce something from a set of options: names, identifiers, passwords, codes, colours and placeholder content, all made in your own browser.68 tools
- ConvertersConverters that turn a value or a file from one format into another, in both directions wherever that makes sense, with nothing uploaded to a server anywhere.43 tools
- CalculatorsCalculators that work out a number from the inputs you supply, with the formula written out on every page so you can check the working rather than trust it.23 tools
- Developer ToolsDeveloper tools for formatting, encoding and inspecting code, data and websites, covering JSON, XML, CSS, hashes and tokens, all running inside the browser.45 tools
- Text ToolsText tools that count, transform, clean up and compare whatever you paste in, from word counts to diffs and duplicate removal, without the text leaving the tab.34 tools
- Image ToolsImage tools that resize, convert, inspect and edit pictures in the browser. Nothing is uploaded, so the file never leaves the machine you are working on.12 tools
- ValidatorsValidators that check whether a value, a file or a configuration is valid, and show exactly what is wrong and where, rather than only reporting a failure.8 tools
- FunFun tools for making a decision or filling a moment: random pickers, wheels, dice, coin flips and small novelties, each drawing on a real random generator.13 tools
How these tools work
- Nothing is uploaded
Text, numbers and images you paste in are processed by your own browser. There is no upload step and no account.
- The method is on the page
Every tool page shows the formula or rule it applies, plus worked examples with real inputs and outputs you can check against.
- One tool, one page
Each tool has a single address. There are no duplicate pages for the same tool under different names.