ToolFlash

什么是 ToolFlash？

ToolFlash is a growing collection of 66+ free online tools: percentage, BMI, loan and mortgage calculators, unit and currency converters, text tools (word counter, case converter), and developer utilities (JSON formatter, Base64, regex tester, QR code generator, and more). Everything runs entirely in your browser: no account, no download, and nothing you type is sent to a server. Open a tool, get an instant result. Supported by ads to keep it free forever.