Convert tools

Client-side converters for files, length, volume, and tabular data. Convert CSV to Excel or JSON to CSV in the browser, calculate cubic yards from length, width, and depth, convert millimeters to inches with the exact 25.4 mm = 1 inch formula, plus spreadsheets and images — nothing is uploaded.

Directory

Convert

HEIC to PNG Converter

Convert HEIC and HEIF photos to PNG in the browser. Batch convert, then download — files never leave the device.

Convert

HEIC to PDF Converter

Convert HEIC and HEIF photos to PDF in the browser. Batch convert, then download — files never leave the device.

Convert

Excel to PDF Converter

Convert Excel .xlsx and .xls spreadsheets to PDF in the browser. Batch convert, then download — files never leave the device.

Convert

CSV to Excel Converter

Convert CSV to Excel (.xlsx) in the browser. Paste or open a .csv file, then download a spreadsheet — nothing is uploaded.

Convert

JSON to CSV Converter

Convert JSON arrays and objects to CSV in the browser. Paste or open a .json file, then copy or download — nothing is uploaded.

Convert

PNG to JPG Converter

Convert PNG images to JPG in the browser. Batch convert, then download — files never leave the device.

Convert

Mm to Inches Calculator

Convert millimeters to inches (and inches back to mm) with the exact 1 inch = 25.4 mm formula — decimal and fractional inches, all in the browser.

Convert

Cubic Yard Calculator

Cubic yards and cubic feet from length × width × depth (or a cylinder) in feet or inches — mulch, gravel, concrete, soil, and sand, all in the browser.

Calculate