Free Online Tools
for Everyone
Color tools, developer utilities, random generators, document tools, and more. All running privately in your browser. No signup, no fees, instant results.
Color Tools
9 tools for designers & developers
Color Palette Generator
Generate harmonious 5-color palettes from any starting hue.
CSS Gradient Generator
Build linear and radial CSS gradients with live preview.
WCAG Contrast Checker
Test color pairs against WCAG 2.1 AA and AAA standards.
CSS Box Shadow Generator
Generate CSS box shadows with slider controls and live preview.
Color Format Converter
Convert HEX to RGB, HSL, RGBA, and CSS custom properties.
Tints and Shades Generator
Generate a full 11-step color scale from any hex color.
Color Scheme Generator
Generate complementary, analogous, and triadic color schemes.
Color Name Finder
Find the closest CSS named color for any HEX code.
Image Color Extractor
Upload an image and extract its dominant color palette.
Random Tools
11 tools for decisions & games
Wheel Spinner
Spin the wheel for classrooms, giveaways, and decisions.
Yes or No Wheel
Spin the yes or no wheel for instant random decisions.
Dice Roller
Roll any dice type online: D4 through D100.
Coin Flip
Flip a fair digital coin and get instant heads or tails.
Random Number Generator
Generate random numbers between any minimum and maximum.
Team Generator
Split any list of names into randomly balanced teams.
Countdown Timer
Free countdown timer that runs entirely in your browser.
Card Picker
Draw random cards from a standard 52-card deck.
Bracket Generator
Generate randomized single-elimination tournament brackets.
Snow Day Calculator
Calculate the probability of a school snow day based on weather conditions.
Random Letter Generator
Generate random letters A–Z. Choose uppercase, lowercase, vowels, or consonants.
Developer Tools
15 tools for developers & privacy
Strong Password Generator
Generate cryptographically secure passwords up to 64 characters.
IP Address Lookup
Find your public IP address, location, ISP, and ASN.
SHA Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes.
Base64 Encoder and Decoder
Encode text to Base64 or decode any Base64 string.
JSON Formatter and Validator
Format, validate, and minify JSON with syntax highlighting.
QR Code Generator
Generate QR codes for URLs, text, email, phone, or WiFi.
URL Encoder and Decoder
Encode or decode percent-encoded URL strings instantly.
UUID v4 Generator
Generate cryptographically random UUID v4 identifiers.
Text Encryptor
Encrypt and decrypt text with a secret key in your browser.
Test Data Generator
Generate fictional names and addresses for software testing.
Dead Pixel Test
Test your monitor for dead pixels using solid color full-screen panels.
Stuck Pixel Fixer
Fix stuck pixels by rapidly cycling colors across your screen.
Refresh Rate Test
Measure your monitor's actual refresh rate in real time.
Touchscreen Test
Test your touchscreen for dead zones and multi-touch support.
Hacker Typer
Type like a movie hacker. Any keypress outputs realistic-looking code.
Document Tools
3 tools for business documents
Why ToolCenterHub
Free tools that just work
100% private
Everything runs in your browser. No data is ever sent to a server, not your passwords, generated text, or document content.
Zero cost
38 tools, completely free. No account, no subscription, no paywall. Open any tool and use it immediately.
Instant results
No page reloads, no waiting. Results update in real time as you type or adjust controls.
Works everywhere
Every tool is responsive and touch-friendly. Use them on desktop, tablet, or phone with no install.
From the blog
Guides & Articles
Fake Windows Update Screen: What It Is and How Pranks Work
What a fake Windows update screen is, how it differs from a real update, why update pranks work, and what the Windows 7, 10, and 11 versions look like.
Broken Screen Prank: How to Pull Off a Fake Cracked Screen
How to set up a convincing broken screen prank on any device. Covers fake cracked screen tools, the wallpaper method, timing, and why distance makes it work.
Fake Blue Screen of Death: What BSOD Is and How Pranks Work
What the blue screen of death is, how fake BSOD screens differ from real ones, why the XP version became a meme, and how BSOD prank tools actually work.
Need to know
Frequently asked questions
Everything you need to know about using ToolCenterHub. Can't find the answer? Feel free to contact us.
38
Free tools
4
Categories
0
Signups needed
Every tool on ToolCenterHub is free with no account, no subscription, and no hidden fees. Use any tool as many times as you need.
All tools run directly in your browser. No software download, browser extension, or plugin is required.
No. All processing happens locally in your browser. Nothing you enter is ever sent to any server, not passwords, generated text, or document content.
Yes. Every tool is fully responsive and touch-friendly. All controls adapt to any screen size, no pinching or zooming required.
Most tools work offline once the page has loaded in your browser. Only the IP Address Lookup tool requires an active internet connection to fetch your IP data.
No. The password generator and hash generator run entirely in your browser using the SubtleCrypto and crypto.getRandomValues() APIs. No output is transmitted or logged anywhere.