Directory
All Tools
Browse every tool. Filter by category, search by name/description, and sort results.
Add Page Numbers to PDF
Add page numbering anywhere on the page with custom start, format, color, opacity, and margins.
Add Watermark to PDF
Text or image watermark across PDF pages. Easy controls for opacity, rotation, position, and size.
Age Calculator
Exact age in years, months, days from DOB.
Angle Converter
Convert degrees ↔ radians ↔ gradians; DMS ↔ decimal degrees.
Area Converter
Convert m² ↔ ft², km² ↔ mi², hectare ↔ acre, and more.
Audio Compressor
Reduce MP3/M4A size while keeping quality
Audio Cutter
Trim audio precisely in your browser.
Audio Equalizer
Preview and tweak audio with EQ, reverb, compression, pan, pitch, and speed — then export.
Audio Looper
Create seamless loops with precise in/out and crossfade.
Audio Volume & Speed Changer
Adjust audio volume and playback speed (0.5x–2x) in your browser.
Auto Loan Calculator
Car payment, interest, and total cost by term & APR.
Average Calculator
Mean, weighted mean, sum & count.
BAC Calculator
Blood alcohol content estimate by drinks & time.
Base64 Encode/Decode
Convert to/from Base64.
Beautify Code
Format HTML/CSS/JS with options.
Black Screen Video with Audio
Create a black-screen MP4/WebM with your audio track.
Blurred Background Video
Auto add a blurred background for vertical or square social formats.
BMI Calculator
Body Mass Index from height & weight.
BMP → JPG
Convert BMP files to JPEG for sharing.
BMP → PNG
Convert BMP bitmaps to compressed PNG.
BMR Calculator
Basal Metabolic Rate & daily calorie needs.
Body Fat Calculator
Estimate body fat % using common formulas.
Border Radius Generator
Generate CSS border-radius values with live preview.
Box Shadow Generator
Create CSS/Tailwind box shadows with preview.
Calorie Burn Calculator
Calories burned by activity and duration.
Calorie Intake Calculator
Daily calories for weight loss, gain, or maintenance.
Carat ↔ Gram Converter
Convert carats (ct) to grams and grams to carats for gemstones.
Case Converter
UPPER, lower, Title, Sentence case.
CD Calculator
Certificate of deposit returns with compounding.
Clothing Size Converter
Map US/EU/UK/Intl sizes for tops, bottoms, and dresses.
CM ↔ Feet Converter
Convert centimeters to feet and feet to centimeters instantly
CM ↔ Inches Converter
Convert centimeters to inches and inches to centimeters.
CO₂ Footprint Calculator
Estimate emissions from flights or drives.
Collage Maker
Combine multiple images into a grid.
Color Converter
HEX ↔ RGB ↔ HSL ↔ CMYK.
Compound Interest Calculator
Project growth with compounding, deposits, and rate.
Compress PDF
Reduce PDF size with presets like screen/ebook/printer and optional custom DPI. Clean, mobile-friendly UI.
Cooking Converter
Convert cups/tbsp/tsp ↔ g/mL with ingredient-aware presets.
Cron Parser
Explain CRON expressions in plain English.
Crop PDF
Crop by margins or exact box. Choose units (pt/mm/in) and pages (e.g., 1-3,5,7-).
Crop/Resize Video
Reframe to 9:16, 1:1, or 16:9 with safe-area guides for social.
CSS clip-path Maker
Create rectangles, circles, pills with linear/radial/conic gradients and copy the CSS in one click.
CSS Gradient Generator
Design linear/radial gradients with CSS output.
CSS Grid Builder
Design and export responsive grid layouts.
CSV → JSON
Convert CSV files into JSON arrays.
Custom QR Code Styler
Add colors, logos, and shapes to QR codes.
Data Storage Converter
Convert bit/byte, KB/MB/GB/TB (decimal and binary GiB/TiB).
Data Transfer Rate Converter
Convert kbps/mbps/gbps, MB/s ↔ Mbps, and more.
Date Difference Calculator
Days, weeks, months between two dates.
Density Converter
Convert kg/m³ ↔ g/cm³ ↔ lb/ft³ for cooking/science uses.
Dimensional Weight (Shipping)
Compute volumetric weight for carriers (air/ground) and compare to actual.
Discount Calculator
Sale price after discount and tax.
Dram ↔ Gram Converter
Convert avoirdupois drams to grams and grams to drams.
Due Date Calculator
Estimate baby’s due date from LMP or conception.
Emoji → Text
Convert emojis into text codes.
Energy Converter
Convert J ↔ kJ, Wh ↔ kWh, cal ↔ J, BTU ↔ kJ.
Epoch ↔ Date
UNIX time to ISO-8601 and back.
Excel Viewer
Preview XLSX and XLS spreadsheets in-browser.
Extract Audio from Video
Extract Audio from Video — MP3, WAV, M4A (Client-side)
Extract Pages from PDF
Keep only the pages you need. Enter ranges like 1-3,5,7- and download a trimmed PDF.
Facebook Cover Resizer
Fit images to Facebook cover photo size.
Find & Replace
Search/replace with regex preview.
Flexbox Playground
Visualize and generate CSS/Tailwind flexbox code.
Force Converter
Convert N ↔ lbf, kN ↔ kgf, and more.
Fraction to Decimal
Convert between fractions, decimals, and percents.
Frequency Converter
Convert Hz ↔ kHz ↔ MHz ↔ GHz; period ↔ frequency.
Fuel Cost Calculator
Trip fuel cost by mileage and gas price.
G ↔ OZ Converter
Convert grams to ounces and ounces to grams.
Geo Location → QR Code
Create QR codes for maps/coordinates.
GIF → WEBP (Animated)
Convert animated GIFs to animated WEBP for smaller files.
Glycemic Load Calculator
Compute GL from GI and carbs per serving.
GPA Calculator
Term & cumulative GPA (weighted/unweighted).
Grade Calculator
Compute course grade from weighted components.
Grain ↔ Gram Converter
Convert grains (gr) to grams and grams to grains.
Hash Generator
MD5/SHA-1/SHA-256 checksums for text/files.
Hashtag Generator
Generate trending hashtags from keywords.
Heart Risk Calculator
Estimate cardiovascular risk with common scores.
HEIC → JPG
Convert iPhone photos to universal JPG.
HEIC → PNG
Convert iPhone HEIC photos to lossless PNG.
HEIC → WEBP
Turn HEIC into compact WEBP for the web.
HTML Entities
Encode & decode HTML entities.
Ideal Body Weight
Estimate ideal body weight using Devine/Robinson/Miller formulas.
Image → SVG
Vectorize images into scalable SVGs.
Image Compressor
Compress JPG/PNG/WEBP efficiently.
Image Cropper
Crop with custom ratios and zoom.
Income After Tax
Net take-home pay from gross salary.
Inflation Calculator
Compare past and present value of money.
Instagram Post Resizer
Resize images to 1080x1080 for Instagram.
Instagram Story Resizer
Resize content to 1080x1920 for Stories.
Join Audio
Merge multiple audio files seamlessly.
JPG → PNG
Convert JPEG images to PNG.
JPG → WEBP
Convert JPEG images to modern WEBP for smaller size.
JSON → CSV
Turn JSON data into CSV files.
JSON Formatter
Pretty-print & validate JSON.
JWT Decoder
Decode header & payload; check exp/nbf.
KG ↔ G Converter
Convert kilograms to grams and grams to kilograms.
KG ↔ LB Converter
Convert kilograms to pounds and pounds to kilograms instantly.
KM ↔ Miles Converter
Convert kilometers to miles and vice versa with instant results.
LB ↔ KG ↔ Stone
Quickly convert among pounds, kilograms, and stones in one place.
LB ↔ OZ Converter
Convert pounds to ounces and ounces to pounds.
Line Break Generator
Add clean line breaks in Instagram captions.
Line Sorter
Sort lines A→Z, Z→A, or by length.
LinkedIn Banner Resizer
Adjust images for LinkedIn profile banners.
Loan Calculator
Monthly payment & interest breakdown for personal, auto, student loans.
Logo Maker
Create simple text-based logos.
Macro Calculator
Daily protein, carbs, and fat targets.
Markdown ↔ HTML
Convert Markdown to HTML and back.
MCG ↔ MG Converter
Convert micrograms to milligrams and milligrams to micrograms.
Median & Mode Calculator
Find middle and most frequent values.
Merge PDF
Combine multiple PDFs into one.
Meters ↔ Feet Converter
Convert meters to feet and feet to meters quickly.
MG ↔ G Converter
Convert milligrams to grams and grams to milligrams.
Mileage Calculator
Average mileage & cost per km/mi.
Miles ↔ Feet Converter
Convert miles to feet and feet to miles.
Minify Code
Minify HTML/CSS/JS; show size savings.
MM ↔ Inches Converter
Convert millimeters to inches and inches to millimeters.
Mortgage Calculator
Estimate monthly payments with taxes, insurance & amortization.
Mouse Click Speed Test
Clicks per second mini game.
Mute Video
Remove audio from any video and export a silent MP4/WebM.
Number Base Converter
Convert binary ↔ octal ↔ decimal ↔ hexadecimal.
Overtime Pay Calculator
Extra pay from hours worked beyond regular time.
Ovulation Calculator
Fertile window prediction by cycle length.
Password Generator
Create strong passwords with custom rules.
Password Strength Checker
Estimate password strength, entropy, and time-to-crack.
PDF Viewer
Open and view PDF files directly in your browser.
Pennyweight ↔ Gram Converter
Convert pennyweight (dwt) to grams and grams to pennyweight.
Percentage Calculator
Find X% of Y, percentage change, and differences.
Period Calculator
Track cycle dates and next period prediction.
Permutations & Combinations
nPr and nCr for counting problems.
Play Video in Loop Online
Loop any short video (up to 5 minutes) directly in your browser.
PNG → JPG
Convert transparent PNGs to JPG.
PNG → TIFF
Convert PNGs to TIFF (with LZW/ZIP compression options).
PNG → WEBP
Convert PNG images to WEBP.
Poster Maker
Design simple posters with text and shapes.
Power Converter
Convert W ↔ kW ↔ MW, hp ↔ kW.
Pressure Converter
Convert Pa ↔ bar, kPa ↔ psi, atm ↔ mmHg (torr).
Profile Picture Cropper
Crop and preview profile pictures with safe zones.
Profit Margin Calculator
Compute margin, markup, and profit from cost & price.
Proportion Calculator
Solve for missing values in proportions.
Protect PDF
Set a password and permissions for your PDF. Built by Tolyo.
QR Code Scanner
Upload or scan QR codes to decode content.
Ratio Calculator
Simplify, scale, and compare ratios.
Reaction Timer
Measure reflex speed and record results.
Reading Time Estimator
Estimate minutes to read a text.
Regex Tester
Test and debug regular expressions.
Remove Duplicate Lines
Clean text by removing duplicates.
Remove Pages from PDF
Delete pages by range (e.g., 2,4-6,10-) or single indices.
Rent vs Buy Calculator
Compare home buying vs renting over time.
Retirement Calculator
Estimate nest egg, withdrawals, and longevity.
Reverse Text
Reverse characters or word order.
Ringtone Maker
Cut audio and export mobile-ready ringtones (M4R/OGG/MP3).
ROI Calculator
Return on investment with absolute and percentage gains.
Rotate PDF
Rotate pages 90/180/270 degrees.
Salary Tax Calculator
Estimate income after taxes and deductions.
Savings Goal Calculator
How much to save monthly to hit a target.
Shoe Size Converter
Convert US ↔ UK ↔ EU ↔ CM for men/women/kids.
Simple Interest Calculator
Quick interest estimate without compounding.
SIP Calculator
Systematic investment growth projections with compounding.
Sleep Cycle Calculator
Best sleep/wake times aligned to cycles.
Slug ↔ KG Converter
Convert slugs to kilograms and kilograms to slugs (engineering).
Slug Generator
Make URL-friendly slugs from titles.
Speed Converter
Convert km/h ↔ mph, m/s ↔ ft/s, knot ↔ km/h.
Split PDF
Extract pages or ranges from a PDF.
Standard Deviation
Population & sample SD and variance.
Stone ↔ KG Converter
Convert stones to kilograms and kilograms to stones.
Stone ↔ LB Converter
Convert stones to pounds and pounds to stones.
Stopwatch
Large stopwatch view for presentations.
Student Loan Calculator
Plan payments with interest, term, and extra payments.
SVG → JPG
Rasterize SVGs into JPEGs with background color options.
SVG → PNG
Rasterize SVGs into PNGs.
SVG → WEBP
Convert vector SVG to WEBP bitmap at chosen size.
Tailwind Gradient Helper
Convert CSS gradients into Tailwind classes.
Text → Emoji
Translate text into emojis for fun posts.
Text → QR Code
Generate QR codes for text/URLs/Wi-Fi.
Text Cleaner
Trim spaces, blank lines, non-ASCII.
Text Diff
Compare two texts with highlights.
Text File Viewer
Preview TXT, MD, and RTF files in the browser.
Text Similarity Checker
Compare two texts to find overlap.
TIFF → JPG
Convert TIFF images to widely compatible JPEG.
TIFF → PNG
Convert TIFF images to lossless PNG.
TIFF image viewer
Open TIFF image online free.
Time Converter
Convert ms ↔ s ↔ min ↔ h ↔ days; add/subtract durations.
Tip Calculator
Split bills and add tip in seconds.
Toll Calculator
Estimate tolls along a route.
Tonne ↔ Long Ton Converter
Convert metric tons (tonnes) to UK long tons and vice versa.
Tonne ↔ Short Ton Converter
Convert metric tons (tonnes) to US short tons and vice versa.
Travel Daily Budget
Set a per-day budget by trip length.
Travel Time Calculator
ETA from distance and average speed.
Troy Ounce ↔ Gram Converter
Convert troy ounces to grams and grams to troy ounces (precious metals).
Twitter Header Resizer
Resize banners to 1500x500 pixels.
Typing Speed Test
Measure WPM typing speed and accuracy.
ULID Generator
Generate sortable ULIDs.
Unlock / Decrypt PDF
Remove PDF encryption with the right password and download the decrypted file.
URL → QR Code
Generate QR codes for website links.
URL Encode/Decode
Encode/Decode URLs safely.
US Hundredweight ↔ LB Converter
Convert US hundredweight (cwt, 100 lb) to pounds and back.
UUID Generator
Generate v4 UUIDs securely.
VAT & GST Calculator
Add or remove sales tax from prices.
vCard → QR Code
Generate QR codes for contact details.
Video to Still Frames
Extract frames at a chosen rate and download as PNG/JPEG or a ZIP.
Video Trimmer Online
Quickly select start/end points and export a clean cut with no re-encode if possible.
Volume Converter
Convert L ↔ gal, mL ↔ tsp/tbsp, cup ↔ mL, pint/quart ↔ L.
Water Intake Calculator
Recommended daily water based on weight & activity.
WEBP → GIF (Animated)
Turn animated WEBP images into GIFs for compatibility.
WEBP → JPG
Convert WEBP images to JPEG.
WEBP → PNG
Convert WEBP images to PNG.
WEBP image viewer
Open WEBP images in your browser.
Weight on Other Planets
See what your weight would be on the Moon, Mars, Jupiter, and more.
Word Counter
Count words, chars, reading time.
Word Viewer
View DOCX and DOC files online without Word.
XML Formatter
Pretty-print & validate XML (XSD optional).
YAML ↔ JSON
Convert and validate YAML/JSON.
Yards ↔ Meters Converter
Convert yards to meters and meters to yards.
Yes/No Decision
Fair coin-flip style decision helper.