All Tools VerseChange Image Opacity (Make a Photo See-Through)
Changing an image’s opacity makes the whole picture more or less see-through, from fully solid to faintly visible, which is how you create watermarks, ove
Guides
Data URIs Explained: Embed Files in a String
A data URI packs a whole file into a single text string, so a small image or snippet of text can be embedded directly in HTML or CSS instead of loading fr
Text to Hex: Convert Strings to Hexadecimal
Text to hex conversion turns each character of a string into its byte value written in hexadecimal, so “Hi” becomes 48 69. Every character has a numeric c
Clean a Messy CSV: Fix Quotes and Missing Fields
Cleaning a messy CSV means fixing the two problems that break imports: rows with missing fields and values that are not quoted correctly. A single ragged
Generate Data from a Regex Pattern
Generating data from a regex pattern produces strings that match a rule you define, so you can create realistic test values such as phone numbers, codes,
Extract a Color Palette from an Image
Extracting a color palette from an image pulls out its main colors as a small set of swatches with their hex codes, so you can reuse the exact colors else
HTML Entities: Encode and Decode Special Characters
HTML entities are codes that let you show characters which would otherwise break a web page, so a less-than sign is written as < and an ampersand a
BCD Explained: Convert Binary Coded Decimal
Binary coded decimal, or BCD, stores each decimal digit in its own four-bit group instead of converting the whole number to binary. So the decimal 25 in B
Extract or Delete CSV Columns
Editing CSV columns means extracting just the ones you need or deleting the ones you do not, without opening a spreadsheet or writing a script. A wide exp
Generate Random Bytes and Hex Strings
Generating random bytes or hex strings gives you unpredictable values for keys, tokens, test data, and salts, written either as raw byte numbers or as a c
Add Text, a Border or a Background to an Image
Adding text, a border, or a background to an image are three of the most common quick edits, useful for captions, watermarks, framing, and filling transpa
Unicode Code Points and Escapes Explained
A Unicode code point is the number assigned to a character, written as U+ followed by hex, so A is U+0041 and a smiley is U+1F600. A Unicode escape is tha