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Edit and crop images

Convert images from PNG to JPG, or JPG to PNG

Encode images into Base64 strings

Convert between plain text and binary

Two-way conversion between binary and hexadecimal (HEX)

Two-way conversion between binary and decimal

Convert various files to PDF

Convert units of weight and mass

Convert area units

Convert units of power

Convert units of speed

Convert units of data capacity and information

Convert units of dry volume and capacity

Convert various engineering units

Convert units of energy, work, heat, and electrical energy

Convert units of equivalent dose, radioactivity, exposure, and absorbed dose

Convert units such as electric charge, current, and resistance

Remove specified pages from a PDF

Display the HTTP response headers sent by a web server

Convert an Excel table into an HTML TABLE TAG

Pair-check an SSL certificate against a private key or a CSR file

Change the size of images

Add a text or logo watermark to images

Convert units of length and distance

Convert time units

Convert units of luminous intensity, luminance, and luminous flux

Extract all images from a PDF

Add a header and footer to each page of a PDF

Trim audio files

Preview Markdown in real time

Paste a JWT to view its contents and verify the signature

Convert audio files