Free Online Tools
Hundreds of useful online tools in one place
Use free online converters, calculators, generators and utility tools with instant results. Find fast answers for everyday tasks, work, study and technical problems in one place.
Popular tool types
- Unit, weight, length and file converters
- Everyday calculators for money, health and percentages
- Text, image and developer tools for quick tasks
- Fast single-purpose tools with clear results
Browse Categories
Pick a category and find the exact tool you need faster
Converters
Unit, file and format conversions designed for quick answers.
Calculators
Practical calculators for finance, health and everyday numbers.
Construction Calculators
Material and quantity calculators for roofs, concrete, insulation, finishing and building projects.
Generators
Fast generators for text snippets, slugs, IDs and templates.
Text Tools
Counting, cleanup and structure helpers for everyday writing.
Developer Tools
Small utilities for formatting, debugging and transforming data.
HTML Tools
HTML formatters, validators, converters and extractors for markup workflows.
Image Tools
Compression, resizing and optimization helpers.
Security Tools
Hashing, encoding and safe inspection workflows.
Popular searches
Tools people use most
calculators category
BMI Calculator
Enter height and weight to get a BMI value with a clear decimal result and category.
image-tools category
Image Compressor
Compress JPG, PNG, and WebP images in your browser and reduce file size without uploading files.
construction-calculators category
Concrete Calculator
Estimate concrete volume, margin, and bag count for slabs, footings, and post holes.
construction-calculators category
Styrofoam Insulation Calculator
Estimate EPS packs for walls, floors, roofs, and foundations from area, thickness, and pack yield.
calculators category
Age Calculator
Calculate age from a birth date in years, months, and days.
image-tools category
Image Resizer
Set exact pixel dimensions for photos, screenshots, logos, and banners.