All Tools (890) · Page 14 of 19
Search and filter through every Markvibe tool — 35 categories, 890 utilities, zero sign-ups.
Suggest complementary harmonies.
Mix two HEX colors.
Look up a HTML named color from #hex.
Generate a 5-color palette from a base color.
Generate shades and tints of a color.
Convert a list into a comma-separated string.
Compound interest calculator.
Compute concrete volume.
Compute a 95% confidence interval (mean ± 1.96·SE).
Compute CPM, CPC, revenue.
Create PDF — see Image to PDF.
Generate test (non-real) Luhn-valid PAN.
Validate credit-card number (Luhn).
Rough credit-score interpreter.
Explain a cron expression.
Split a CSV by row count.
Validate CSV structure.
Format a number as currency.
Convert KB/MB/GB sizes.
Compute days between two dates.
Convert decimal codes back to text.
Straight-line depreciation calculator.
Check meta description length.
Strip diacritics from text.
Generate a website disclaimer.
Domain age requires WHOIS lookup.
Generate dummy placeholder text.
Find duplicate lines.
Remove duplicate lines.
PDF editing — planned, see Merge/Split.
Obfuscate emails with HTML entities.
Generate an HTML email signature.
Validate an email syntax.
Pick and copy emojis.
EPUB→PDF — planned.
Excel→PDF — planned.
Extract audio from video — server task.
Find a Facebook ID via Lookup-ID.com.
Generate fake user records.
Generate FAQ JSON-LD schema.
Generate <link> tags for a favicon.
Inspect file size & type.
Merge multiple text files.
Show duplicate lines only.
Find and replace text.
Simple Q/A flashcards (local).
Add, subtract, multiply, divide fractions.
Compute fuel cost for a trip.