Your All-in-One Browser Toolkit
Trending Tools
The most popular tools right now.
Discount Calculator
Calculate the discount amount and final price after applying a percentage discount.
EMI Calculator
Calculate your Equated Monthly Installment for loans with principal, rate, and tenure.
Unit Converter
Convert between units of length, weight, temperature, volume, speed, data, area, and time.
Gradient Generator
Create beautiful CSS gradients with a visual editor and copy the code.
Contrast Checker
Check color contrast ratios and WCAG AA compliance for text readability.
JSON Formatter
Format and beautify JSON data with customizable indentation and syntax highlighting.
Palette Generator
Generate harmonious color palettes using complementary, analogous, triadic, tetradic, or monochromatic harmonies.
Image Compressor
Compress images to reduce file size while maintaining quality, entirely in the browser.
Featured Tools
Hand-picked tools we think you'll love.
Compound Interest Calculator
Calculate compound interest with configurable compounding frequency and time period.
Loan Calculator
Calculate monthly payment, total interest, and total repayment for any loan amount.
Percentage Calculator
Calculate percentages, increases, decreases, and ratios instantly.
Contrast Checker
Check color contrast ratios and WCAG AA compliance for text readability.
Tailwind Color Picker
Browse and copy colors from the Tailwind CSS default color palette with click-to-copy.
HEX to RGB
Convert HEX color codes to RGB values instantly with a live preview.
JSON Formatter
Format and beautify JSON data with customizable indentation and syntax highlighting.
Palette Generator
Generate harmonious color palettes using complementary, analogous, triadic, tetradic, or monochromatic harmonies.
Recently Added
The newest tools on the platform.
Scientific Calculator
Evaluate complex math expressions with support for trigonometry, logarithms, powers, and constants.
Unit Converter
Convert between units of length, weight, temperature, volume, speed, data, area, and time.
Keyword Density Checker
Analyze keyword density in your text with occurrence counts and percentage for each unique word.
Readability Checker
Check the readability of your text with Flesch-Kincaid grade level and reading ease score.
SEO Slug Generator
Generate SEO-friendly URL slugs from any text with automatic lowercase, special character removal, and hyphenation.
UTM Builder
Build URLs with UTM campaign tracking parameters for analytics — source, medium, campaign, term, and content.
Canonical URL Generator
Generate canonical link tags to avoid duplicate content issues and consolidate page authority.
Robots.txt Generator
Generate a robots.txt file conforming to the Robots Exclusion Protocol with user-agent rules and sitemap.
What People Say
“I use JSON formatter and Base64 encoder daily. Having everything in one fast, private toolkit saves me so much context switching.”
Alex Chen
Full-Stack Developer
“The gradient generator and contrast checker are my go-to. No sign-up, no ads, and the dark mode is gorgeous.”
Sarah Mitchell
UI/UX Designer
“Word counter, slug generator, and readability checker — all running instantly in my browser. Exactly what I needed.”
James Rivera
Technical Writer
Frequently Asked Questions
Is Toolsplays really free?
Yes, all tools are free forever. No hidden fees, no premium tiers, no subscriptions.
Do you upload my files?
No, everything processes in your browser. Your files never leave your device — zero server uploads.
Do I need to create an account?
No account required. Just open any tool and start using it immediately.
What browsers are supported?
All modern browsers including Chrome, Firefox, Safari, Edge, and their mobile versions.
Can I use Toolsplays offline?
Yes, with PWA support you can install Toolsplays and use most tools even without an internet connection.