100% Free • No Sign-up Required

Split screen your browser into perfect focus

The free Chrome extension that transforms how you work. 8 smart layouts, focus effects, and spotlight mode — organize your browser in one click.

⭐⭐⭐⭐⭐ 180+ happy users
5.0★ Chrome Store Rating
8 Smart Layouts
∞ Windows Organized

See the Dramatic Difference

Experience the transformation from chaos to perfect focus

Browser without Mosaic showing cluttered windows
Visual chaos
Misaligned windows

The Problem

× Windows compete for attention
× Clunky, uneven layouts
× Complete visual overwhelm
× Constant distraction switching
Browser with Mosaic showing perfect focus
Perfect alignment
Smart focus

Perfect Focus

✓ Pixel-perfect alignment
✓ Intelligent focus effects
✓ Instant attention switching
✓ Effortless concentration
Browser with Mosaic blur effects
Custom blur
Opacity control

Advanced Control

✓ Customizable blur intensity
✓ Precise opacity control
✓ Peripheral vision blocking
✓ Auto-saves preferences

Everything You Need to Focus

Powerful features designed to eliminate distractions and boost your productivity

🎯 Smart Focus

Intelligent Window Highlighting

Your active window gets a beautiful glowing border while inactive windows automatically fade into the background. No more hunting for the right window—your focus is instantly drawn to what matters.

Smart focus highlighting
🎛️ Precision Control

Customize Every Detail

Everyone focuses differently. Mosaic gives you precise control over blur intensity, dimming levels, and focus effects. Find your perfect balance for maximum productivity with instant preview.

Customization controls
💡 Spotlight Mode

Laser-Sharp Spotlight

Transform your workspace with spotlight focus—a powerful feature that creates a focused beam of attention around your active window. Background content fades into darkness while your current task stays crystal clear.

🎯 Precise focus targeting
🌙 Dark background dimming
⚡ Instant activation
Spotlight focus feature
🎨 Color Studio

9 Research-Optimized Color Tints

Transform any webpage with scientifically-calibrated color overlays that reduce eye strain and enhance reading focus. Choose from 9 carefully selected tints with adjustable intensity.

🎨 9 adjustable tints
⚙️ Custom intensity
📖 Optimized for reading
Color Studio feature
🎨 Smart Layouts

Choose Your Perfect Workspace

Eight scientifically-designed layouts that adapt to your workflow. From deep focus to multitasking mastery.

Intelligent Layout Engine

Switch between layouts instantly with keyboard shortcuts. Each layout is mathematically optimized for different types of productivity work.

⚡ Instant switching
🧮 Mathematical precision
⌨️ Keyboard shortcuts
Mosaic extension layout selection interface
Most Popular

Golden Ratio Split

Perfect 61.8% / 38.2% division. Ideal for research, writing, and reference work. Based on nature's most pleasing proportions.

✍️ Writing 📚 Research 💼 Reference work

Quad Mastery

Four equal windows for maximum multitasking. Perfect for monitoring, comparing, and managing multiple projects simultaneously.

📊 Monitoring 🔄 Comparing 🎯 Project management

Timeline View

Three horizontal panels perfect for timeline work, code reviews, and sequential workflows that need vertical scrolling.

⏱️ Timeline work 👨‍💻 Code review 📋 Sequential tasks

Pure Focus

Single window, maximum concentration. Eliminates all distractions for deep work, writing, and intensive focus sessions.

🧘 Deep work ✍️ Writing 🎯 Focus sessions

Side by Side

Two equal windows positioned side by side. Perfect for comparing documents, coding with preview, or working with dual content streams.

📄 Document comparison 👨‍💻 Code & preview 📊 Dual workflows

Triple Wide

Three vertical columns for maximum information density. Ideal for monitoring multiple data streams, comparing three documents, or advanced multitasking.

📊 Data monitoring 📑 Multi-document work 🔄 Advanced multitasking

Loved by Thousands

Join productivity enthusiasts who transformed their browsing experience

⭐⭐⭐⭐⭐

"One of the best productivity tools I've ever used! The focus effects are game-changing for my ADHD."

⭐⭐⭐⭐⭐

"AMAZING. I cannot thank whoever created this enough. It's changed my workflow completely!"

⭐⭐⭐⭐⭐

"Great extension with lots of helpful features. Most of all it is free! Perfect for students."

⭐⭐⭐⭐⭐

"Have been looking for this kind of app for years! This is the best and very easy to use."

⭐⭐⭐⭐⭐

"Amazing app! Quite useful while studying and reading articles. The blur effects help me focus."

⭐⭐⭐⭐⭐

"Obsessed with this! The customization options are incredible—exactly what I needed."

Completely Free

All features are free — no subscriptions, no payments, no limits

100% Free

Mosaic

All features included at no cost

$ 0 /month
✓ All 8 layouts included
✓ All 9 Color Studio tints
✓ All 20 premium fonts
✓ Spotlight focus mode
✓ Fully customizable effects
✓ Advanced blur controls
✓ No sign-up required
✓ No payment info needed

Frequently Asked Questions

Everything you need to know about Mosaic

How does Mosaic work?

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Mosaic is a Chrome extension that automatically organizes your browser windows into perfect layouts. Simply install the extension, choose your preferred layout, and Mosaic will intelligently arrange your windows with focus effects to help you concentrate better.

Is Mosaic really free?

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Yes! Mosaic is completely free. All features are available immediately including all 8 layouts, spotlight focus mode, Color Studio, and all fonts. No trial period, no subscriptions, and no payment information required.

Does Mosaic work with all websites?

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Yes! Mosaic works with any website or web application. The extension manages browser windows at the system level, so it's compatible with all sites including Google Docs, Notion, GitHub, social media, and more.

Is my data secure?

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Your privacy is our priority. Mosaic stores all settings locally on your device and never accesses your browsing data or website content. We don't collect or share any personal information.

Does Mosaic slow down my browser?

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No! Mosaic is designed for performance with minimal resource usage. It only activates when needed and doesn't impact your browsing speed or memory usage.

What keyboard shortcuts does Mosaic support?

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Mosaic includes intuitive keyboard shortcuts for instant layout switching, focus toggling, and window management. All shortcuts are customizable in the extension settings.

Which layout is best for coding?

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The Golden Ratio layout is perfect for coding with documentation, while Side by Side works great for code and preview. Triple Wide is ideal for monitoring multiple development tools.

Transform your focus with Mosaic
Loved by all ❤️