All Free Tools
8,445 free online tools across 85 categories
Every tool here runs in your browser — no sign-up, no upload, nothing to install. Convert files, format code, generate text, run calculations, and check SEO across PDF, image, developer, finance, and unit-conversion tools. Pick one and start.
| Tool | Category | Description | Action |
|---|---|---|---|
|
SHA384 Hash Generator
|
Developer Tools | Open | |
|
Shade Generator
|
Color Tools | Open | |
|
Shadow Elevation Helper
|
Design Tools | Open | |
|
Shaft Diameter Calculator
|
Engineering Tools | Open | |
|
Shakespearean Translator
|
Text Tools | Open | |
|
Shannon Channel Capacity Calculator
|
Engineering Tools | Open | |
|
Shannon Diversity Index Calculator
|
Biology Tools | Open | |
|
Shannon Entropy Calculator
|
Developer Tools | Open | |
|
Shannon Entropy Password Checker
|
Security & Privacy | Open | |
|
Shard Count Calculator
|
Developer Tools | Open | |
|
Share of Voice Calculator
|
Marketing Tools | Open | |
|
Shear Modulus Calculator
|
Engineering Tools | Open | |
|
Shear Moment Helper
|
Engineering Tools | Open | |
|
Shekel Symbol
|
Symbols & Unicode | Open | |
|
Shelf Sag Calculator
|
Construction Tools | Open | |
|
Shingle Calculator
|
Construction Tools | Open | |
|
Ship Displacement Tonnage Calculator
|
Engineering Tools | Open | |
|
Ship Trim Calculator
|
Marine Tools | Open | |
|
Shipping Cost Calculator
|
E-Commerce Tools | Open | |
|
Shock Index Calculator
|
Health & Fitness | Open | |
|
Short Circuit Current Calculator
|
Engineering Tools | Open | |
|
Short ID Generator
|
Developer Tools | Open | |
|
Shredded Cheddar Cups to Grams Converter
|
Food & Cooking | Open | |
|
Shredded Cheddar Grams to Cups Converter
|
Food & Cooking | Open | |
|
Shredded Coconut Cups to Grams
|
Food & Cooking | Open | |
|
Shredded Coconut Grams to Cups
|
Food & Cooking | Open | |
|
Shrinkage Compensation Calculator
|
Electrical Tools | Open | |
|
Shuffle Lines
|
Text Tools | Open | |
|
Sidechain Compressor Timing Calculator
|
Audio Tools | Open | |
|
Sidereal Time Calculator
|
Space & Astronomy | Open | |
|
Sieverts to Becquerels Converter
|
Unit Converters | Open | |
|
Sieverts to Curies Converter
|
Unit Converters | Open | |
|
Sieverts to Grays Converter
|
Unit Converters | Open | |
|
Sieverts to Rad Converter
|
Unit Converters | Open | |
|
Sieverts to Rem Converter
|
Unit Converters | Open | |
|
Sig Fig Counter
|
Education | Open | |
|
Sigma Level Calculator
|
Engineering Tools | Open | |
|
Sigma Symbol
|
Symbols & Unicode | Open | |
|
Signal-to-Noise Ratio Calculator
|
Networking Tools | Open | |
|
Signature Image Resizer
|
Image Tools | Open | |
|
Significant Figures Calculator
|
Math Calculators | Open | |
|
Significant Wave Height Calculator
|
Science Tools | Open | |
|
Silage Calculator
|
Agriculture Tools | Open | |
|
Silage Tonnage Calculator
|
Agriculture Tools | Open | |
|
Silence Remover
|
Audio Tools | Open | |
|
Silhouette Score Helper
|
Computer Science Tools | Open | |
|
Silicon Electron Configuration
|
Chemistry Tools | Open | |
|
Silicon Element Properties
|
Chemistry Tools | Open |
Showing 6,577–6,624 of 8,445 tools