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What Is IEEE 754? How Floats Are Stored in Bits
Computers store floating-point numbers as a sign, a power of two, and a fractional significand, following the IEEE 754 standard.
How to Format HTML Online: Beautify and Minify Messy Markup
An HTML formatter re-indents markup so you can read its structure, and minifies it back down so it ships small. Use beautify while you are building and debugging, minify for production.
Can You Make a QR Code for an Email Address?
An email QR code encodes a mailto: link, so scanning it with a phone camera opens the mail app with a new message already addressed, and optionally pre-filled with a subject and body.
Mean vs Median vs Mode: Which Average to Use
An average calculator takes a list of numbers and returns the mean, median, and mode, plus range and standard deviation.
How to Extract Email Addresses From Messy Text
An email extractor scans a block of text and pulls out every email address it contains, returning a de-duplicated list you can copy.
CSV to SQL: Turn a Spreadsheet Into INSERT Statements Without the Quote Bugs
A CSV to SQL converter reads a CSV file and generates the CREATE TABLE and INSERT statements a database needs to store it.
How to Flatten Nested JSON Into Dot Notation
A JSON flattener converts a nested object into a single-level object whose keys are the path to each value, so {"user":{"city":"Austin"}} becomes {"user.city":"Austin"}.
How to Compare Two CSV Files Without Line Diffs
A CSV diff compares two CSV files as structured data instead of as lines of text.
How to Calculate the Duration Between Two Times
The calculator works in three modes. Time Between gives the elapsed hours and minutes from a start time to an end time, handling overnight spans automatically.