Free · Private · No signup
Free online tools that just work
Password generators, text utilities, converters, calculators, and more — all running in your browser. Fast, mobile-friendly, and completely free.
All tools
Pick a tool and get results instantly. Nothing is uploaded to our servers.
Password Generator
Create strong, random passwords and check strength in real time. Fully private — runs in your browser.
Open tool →Text Tools
Case converter, word & character counter, remove duplicates, sort lines, and Lorem Ipsum generator.
Open tool →Unit Converter
Convert length, weight, temperature, data storage, and more with accurate instant conversions.
Open tool →Color Tools
Color picker, HEX ↔ RGB ↔ HSL converter, and WCAG contrast checker for accessible design.
Open tool →Financial Calculators
Loan/EMI calculator, compound interest, and tip calculator — free and private.
Open tool →QR Code Generator
Generate QR codes for URLs, text, or contact info. Download as PNG — no signup required.
Open tool →BMI & Calorie Calculator
Calculate BMI category and estimate daily calories (BMR/TDEE). Educational only — not medical advice.
Open tool →Regex Tester
Test regular expressions live with match highlighting, flags, and match groups. Private and free.
Open tool →JSON Formatter
Format, minify, and validate JSON. Pretty-print with indentation or compress to one line.
Open tool →Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text. Runs fully in your browser.
Open tool →Hash Generator
Generate SHA-256, SHA-1, and SHA-384 hashes from text using the Web Crypto API.
Open tool →UUID Generator
Generate random UUID v4 identifiers in bulk. Copy one or many — perfect for IDs and testing.
Open tool →Why FreeUtilityHub?
Private by design
Tools run entirely in your browser. Passwords, text, and numbers never hit our servers.
Fast & free
No accounts, no paywalls, no bloat. Open a tool and use it in seconds on any device.
Built for real tasks
We focus on high-demand utilities people search for every day — generators, converters, counters.
Guides & tips
Short articles to help you get more from these tools.
2026-03-22 · 3 min read
When to Use Title Case, Sentence Case, and UPPERCASE
A quick guide to text casing conventions for headlines, code, and professional writing.
2026-03-20 · 3 min read
Practical Uses for QR Codes in 2026
Menus, Wi‑Fi sharing, event tickets, and business cards — QR codes are still incredibly useful.
2026-03-18 · 4 min read
Compound Interest Explained Simply
See how compound interest grows savings over time — and why starting early matters more than you think.