Ratio Calculator
Simplify a ratio and calculate each side as a share of the total.
Calculators🛠️ All Tools
Every tool on Toolzees in one place. Free, fast, and browser-based.
Standard Deviation Calculator
Calculate population or sample variance and standard deviation.
CalculatorsMedian and Mode Calculator
Find the median, mode, and range of a number set.
CalculatorsAverage Calculator
Calculate count, sum, and arithmetic mean for a list of numbers.
CalculatorsHTTP Status Code Lookup
Look up the meaning of common HTTP response status codes.
Developer ToolsIPv4 Subnet Calculator
Calculate network, mask, broadcast, host range, and capacity from CIDR.
Developer ToolsFile Permission Decoder
Decode permissions such as 644 or 755 into rwx notation.
Developer ToolsCHMOD Calculator
Create numeric and symbolic Unix file permissions.
Developer ToolsCron Expression Builder
Build standard five-field cron schedule expressions.
Developer ToolsRegex Escape Tool
Escape plain text so it can be safely inserted into a regular expression.
Developer Tools