JSLint

JSLint is at its base a library to analyze code quality and help with debugging the infinitely complicated JavaScript language.

To use, just paste your code in JSLint's textarea, activate the options you want to test it for and wait for the results to appear.

JSLint can be a valuable tool for fixing "avoidable" problems in JavaScript, mainly regarding code organization and JS syntax. JSLint will not make someone a better programmer, nor it will help him write faster, more efficient applications.

Besides JavaScript, JSLint can also be used for testing out valid JSON strings.

Requirements:

• JavaScript enabled on client side