Free Online Tools
That Just Work
Get things done faster with 20+ free online tools designed for simplicity and privacy. Compare documents, format data, create graphics—all without creating an account. Your data stays yours.
The Smooth Philosophy
We build tools that prioritize your time and privacy. Fast, free, and no nonsense—designed to just work.
No Signup
No identity required
Privacy First
Data stays on device
Clean Design
Minimal interface
Instant
Zero wait time
Free Forever
Core features will always be free, no strings attached.
Made For Everyone
Seamlessly fitting into the workflow of students, creators, and professionals alike.
Students
comparing drafts
Creators
formatting assets
Developers
data cleanup
Marketers
cleaning reports
Writers
tracking changes
Everyone
valuing privacy
Popular Tools
Most-loved utilities used by thousands of users daily.
Squircle Generator
Create smooth, rounded shapes for your designs, presentations, and graphics—no design skills needed.
{ "key": "value" }
JSON Formatter
Clean up and organize messy data files instantly. Perfect for spreadsheets, exports, and data cleanup.
Text Diff Checker
Compare two documents side-by-side and instantly spot every difference—great for essays, contracts, and version tracking.
More tools, zero hassle
Every tool is designed to be simple, private, and free. No accounts, no limits.
The Smoothness Blog
Understand what we build and why we build it.
Advanced Color Management with Color Lab
Mastering OKLCH, Perceptual Color Spaces, and High-Precision Color Conversions for the Modern Web using Color Lab.
SmoothTools JSON Formatter vs. VS Code
Why switching to a dedicated, privacy-focused online web tool can significantly improve your daily workflow and keep your data local.
Mastering JSON: Guide to the SmoothTools Formatter
Learn how to validate, beautify, and minify your JSON data efficiently with our privacy-first, no-signup web tool.