Is Practical Web Tools really free?

Yes, all 300+ tools are completely free with no hidden costs. There are no premium tiers, no usage limits, and no subscriptions. The AI chat feature is also 100% free because it runs on your own computer using Ollama.

Are my files uploaded to your servers?

No. All file processing happens directly in your browser using WebAssembly technology. Your files never leave your device. This makes Practical Web Tools ideal for sensitive documents like contracts, medical records, and financial statements.

What file formats can I convert?

Practical Web Tools supports PDF conversion (to Word, Excel, PowerPoint, images, text), image formats (JPG, PNG, WebP, HEIC, GIF, BMP), audio formats (MP3, WAV, FLAC, OGG, M4A, AAC, OPUS), and document compression (ZIP, 7Z, GZIP, RAR).

How does the free AI chat work?

The AI chat uses Ollama, a free open-source tool that runs AI models locally on your computer. After a one-time setup (about 5 minutes), you can chat with models like Llama 3.2 and Mistral completely offline. Your conversations are never sent to any external servers.

Do I need to create an account?

No account or signup is required. All tools work immediately with no registration. For AI chat, you just need to install Ollama once on your computer.

Is there a file size limit?

Most tools handle files up to 100MB. Since processing happens locally in your browser, the actual limit depends on your device's memory. For very large files, we recommend using our Split PDF or Compress Files tools first.

Does it work on mobile devices?

Yes. All file conversion tools work on smartphones and tablets. The AI chat feature requires a desktop computer (Windows, Mac, or Linux) because Ollama needs to run locally.

100% Free - No Signup Required

Free Ratio Calculator - Simplify & Solve

Name: Free AI Chat - Offline AI Assistant with Ollama
Rating: 4.9 (256 reviews)
Author: Practical Web Tools

Simplify ratios, solve proportions, and find equivalent ratios instantly.

Files Never Leave Your DeviceInstant ProcessingNo Watermarks

Calculate

Quick Answer

Simplify ratios by dividing by GCF. 12:18 = 2:3. Solve proportions: 2:3 = x:12 → x=8 (cross multiply).

Key Facts about Ratio Calculator:

Simplify by dividing by GCF
12:18 simplifies to 2:3
Cross multiply to solve
Equivalent ratios: 1:2 = 2:4 = 3:6
Ratios compare quantities

Why Use Our Ratio Calculator?

Ratio tools:

📊

Simplify Ratios

Reduce to lowest terms.

🔢

Solve Proportions

Find unknown.

📈

Equivalent Ratios

Find matching ratios.

📐

Scale

Scale quantities.

⚡

Instant

Quick results.

🔒

Private

Data stays secure.

Try Ratio Calculator Now

How to Ratio Calculator in 3 Easy Steps

Work with ratios:

Enter Ratio

Your ratio values.

Select Operation

Simplify or solve.

Get Result

See answer.

Start Now - It's Free

Why Use Our Calculator?

Simplify ratios

Solve proportions

Find equivalents

Scale quantities

Calculate

📊

Ratios

Proportions made easy

Common Use Cases for Ratio Calculator

Perfect for:

Cooking

Scale recipes.

Scale

Math

Ratio problems.

Solve

Construction

Scaling plans.

Calculate

Frequently Asked Questions

Everything you need to know about our ratio calculator

How to simplify a ratio?

Divide both numbers by their GCF. 12:18 → divide by 6 → 2:3.

Still have questions? Try the tool yourself!

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No signup required. Start using immediately.