Compares two blocks of text and highlights exactly what changed between them.

Previews how a favicon image looks at the small sizes browsers actually display it.

Previews how a page's title, description, and image would look when shared on social platforms.

Converts any title or phrase into a clean, URL-safe slug instantly.

Calculates the missing dimension when resizing video or images to a specific aspect ratio.

Generates CSS gradient code from chosen colors and direction, with a live preview.

Generates ready-to-use CSS box-shadow code with a live visual preview.

Counts how often each word appears in a block of text, ranked from most to least frequent.

Encodes text to HTML entities or decodes HTML entities back to plain text.

Converts between Unix timestamps and human-readable dates instantly.

Tests a regular expression against sample text and highlights every match live.

Checks whether a list of your own sites is currently reachable, with a simple status log.

Explains any cron expression in plain English and shows the next few run times.

Encodes or decodes URLs and query strings instantly, handling special characters correctly.

Encodes text to Base64 or decodes Base64 back to plain text instantly.

Generates unique UUIDs or custom-length random IDs instantly, ready to copy.

Generates placeholder text in paragraphs, sentences, or words for mockups and layout testing.

Renders Markdown text into formatted preview live as you type, right on any page.

Generates a matching color palette from a single base color, with ready-to-use CSS values.

Formats and validates any JSON, catching errors and pretty-printing it instantly.