All Tools (890) · Page 13 of 19
Search and filter through every Markvibe tool — 35 categories, 890 utilities, zero sign-ups.
Generate many v4 UUIDs in a single click.
Generate a list of random true/false values.
Generate fun random four-line poems.
Compute VAT, net and gross amounts in seconds.
Convert hourly wage to annual salary.
Convert annual salary to hourly wage.
Project retirement balance with monthly contributions.
Find monthly savings needed to hit a goal.
Add line numbers to each line.
Add a prefix and suffix to every line.
Estimate AdSense revenue.
Sort the letters of each word to find anagrams.
Send GET/POST request and show response.
Convert text to ASCII art.
Stylized ASCII banner.
Convert text to ASCII codes.
Convert ASCII to binary.
Compute aspect ratio dimensions.
Audio conversion needs server or ffmpeg.
Audio trimming requires Web Audio (planned).
Background removal requires an AI API.
Note: backlink data needs a server API.
Build a shields.io-style badge URL.
Convert numbers between any two bases (2-36).
Convert an image to Base64 string.
Note: bcrypt requires a server; we estimate cost.
Convert decimal numbers to binary.
Convert binary back to ASCII codes.
Convert binary numbers to octal.
Estimate blood-alcohol concentration.
Estimate body-fat % (U.S. Navy).
Build CSS border-radius visually.
Wrap each line in brackets.
Note: scanning needs a server.
Detect your browser.
Build a CSS button preview.
Plain calculator: evaluate an expression.
Generate a printable monthly calendar.
Estimate daily calories (Mifflin).
Find canonical tag in HTML input.
Generate a starter CHANGELOG entry.
Detailed character statistics.
Diff two code snippets.
Format a code snippet for HTML embed.
Build a simple image collage.
Color-blindness simulator (matrix).
WCAG contrast ratio between two colors.
Convert HEX to RGB.