All-in-One Tools Collection
A broad collection of online tools for development, AI, design, and productivity tasks.
Showing page 173 of 179 (12 tools on this page)
Date Formatter
Convert date strings to various formatted date formats
Day of Week Calculator
Calculate what day of the week a given date falls on
Line Number Adder
Add line numbers to text or code with customizable formatting options
CSV Filter
Filter CSV data by column values with multiple conditions and operators. Supports 12 filter operators including equals, contains, greater_than, less_than, and empty value checks. Additional Filters examples: [{"column": "age", "operator": "greater_than", "value": "25"}] [{"column": "status", "operator": "equals", "value": "active"}, {"column": "score", "operator": "greater_equal", "value": "80"}] [{"column": "name", "operator": "contains", "value": "john"}, {"column": "email", "operator": "is_not_empty"}]
CSV Sorter
Sort CSV data by one or multiple columns with ascending/descending order options
CSV Transformer
Transform and process CSV data with column operations, calculations, and data type conversions. Supports renaming columns, adding calculated columns, removing columns, converting data types, calculating values, and filtering rows. Operation examples: • Rename column: [{"type": "rename", "column": "old_name", "new_name": "new_name"}] • Add calculated column: [{"type": "add_column", "new_column": "total", "formula": "price * quantity"}] • Remove column: [{"type": "remove_column", "remove_column": "column_to_remove"}] • Convert data type: [{"type": "convert_type", "convert_column": "age", "target_type": "number"}] • Calculate values: [{"type": "calculate", "target_column": "total", "expression": "price * tax + shipping"}] • Filter rows: [{"type": "filter_values", "filter_column": "status", "operator": "equals", "value": "active"}]
Date Adder
Add or subtract time periods from a date (years, months, days, hours, minutes, seconds)
File Encoding Converter
Convert file encoding with auto-detection support between UTF-8, GBK, ISO-8859-1 and other character encodings
File Hash Verifier
Calculate MD5/SHA1/SHA256 hash values for files and verify against expected hashes
20-20-20 Eye Care Reminder
Follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds to reduce eye strain
Daily Calorie Needs Calculator
Calculate daily calorie needs based on activity level and goals
Date Difference Calculator
Calculate the difference between two dates in various time units