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8,451 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 |
|---|---|---|---|
|
Mobile User-Agent Parser
|
Developer Tools | Open | |
|
MoCA Score Reference
|
Health & Fitness | Open | |
|
Mocking Spongebob Text
|
Text Tools | Open | |
|
Modal Frequency Calculator
|
Physics Tools | Open | |
|
Mode Calculator
|
Math Calculators | Open | |
|
Modified Centor Score (McIsaac)
|
Health & Fitness | Open | |
|
Modified Duration Calculator
|
Finance Tools | Open | |
|
Modified Rankin Scale
|
Health & Fitness | Open | |
|
Modified Sgarbossa Criteria
|
Health & Fitness | Open | |
|
Modular Arithmetic Calculator
|
Math Calculators | Open | |
|
Modular Exponentiation Calculator
|
Math Calculators | Open | |
|
Modular Exponentiation Calculator
|
Crypto Tools | Open | |
|
Modular Inverse Calculator
|
Math Calculators | Open | |
|
Modular Scale Typography Generator
|
Color Tools | Open | |
|
Modulation Transfer Function Helper
|
Physics Tools | Open | |
|
Modulo Calculator
|
Number Tools | Open | |
|
Molality Calculator
|
Science Tools | Open | |
|
Molar Absorptivity Calculator
|
Chemistry Tools | Open | |
|
Molar Mass Calculator
|
Chemistry Tools | Open | |
|
Molar Volume Calculator
|
Chemistry Tools | Open | |
|
Molarity Calculator
|
Chemistry Tools | Open | |
|
Molarity from Mass Calculator
|
Biology Tools | Open | |
|
Molarity of Acid from Density
|
Chemistry Tools | Open | |
|
Molarity to Mass Percent Converter
|
Chemistry Tools | Open | |
|
Molasses Cups to Grams
|
Food & Cooking | Open | |
|
Molasses Grams to Cups Converter
|
Food & Cooking | Open | |
|
Mole Calculator
|
Chemistry Tools | Open | |
|
Mole Fraction Calculator
|
Chemistry Tools | Open | |
|
Mole Ratio Calculator
|
Chemistry Tools | Open | |
|
Molecular Formula Calculator
|
Science Tools | Open | |
|
Molecular Weight Calculator
|
Science Tools | Open | |
|
Molecular Weight of DNA Calculator
|
Biology Tools | Open | |
|
Molecular Weight of Protein Calculator
|
Biology Tools | Open | |
|
Molecular Weight Polymer Calculator
|
Chemistry Tools | Open | |
|
Moles of Gas at STP Calculator
|
Chemistry Tools | Open | |
|
Moles to Grams Calculator
|
Chemistry Tools | Open | |
|
Molybdenum Electron Configuration
|
Chemistry Tools | Open | |
|
Molybdenum Element Properties
|
Chemistry Tools | Open | |
|
Molybdenum Oxidation States
|
Chemistry Tools | Open | |
|
Moment Generating Function Calculator
|
Math Calculators | Open | |
|
Moment of Inertia Beam Calculator
|
Engineering Tools | Open | |
|
Moment of Inertia Calculator
|
Science Tools | Open | |
|
Moment of Inertia Rod
|
Physics Tools | Open | |
|
Moment of Inertia — Disk Calculator
|
Physics Tools | Open | |
|
Moment of Inertia — Sphere
|
Physics Tools | Open | |
|
Momentum Calculator
|
Science Tools | Open | |
|
MongoDB ObjectId Decoder
|
Developer Tools | Open | |
|
Monitor Viewing Distance Calculator
|
Electrical Tools | Open |
Showing 4,801–4,848 of 8,451 tools