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 Right Triangle Calculator

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

Calculate right triangle sides and angles using Pythagorean theorem and trigonometry.

Files Never Leave Your DeviceInstant ProcessingNo Watermarks

Calculate

Quick Answer

Pythagorean theorem: a² + b² = c². For sides 3,4: hypotenuse = √(9+16) = 5. Use SOH CAH TOA for angles.

Key Facts about Right Triangle Calculator:

a² + b² = c²
Common triples: 3-4-5, 5-12-13
SOH CAH TOA for angles
One angle always 90°
Hypotenuse is longest side

Why Use Our Right Triangle Calculator?

Triangle tools:

📐

Pythagorean

Find sides.

📊

Trigonometry

Find angles.

📈

Area

Calculate area.

🔢

Any Two Values

Solve for rest.

⚡

Instant

Quick results.

🔒

Private

Data stays secure.

Try Right Triangle Calculator Now

How to Right Triangle Calculator in 3 Easy Steps

Calculate triangle:

Enter Known Values

Any two sides or angles.

Calculate

Solve triangle.

View All Values

See all sides and angles.

Start Now - It's Free

Why Use Our Calculator?

Find any value

Pythagorean theorem

Trigonometry

Shows formulas

Calculate

📐

Right Triangles

Complete solutions

Common Use Cases for Right Triangle Calculator

Perfect for:

Geometry

Triangle problems.

Solve

Construction

Measuring angles.

Calculate

Physics

Vector components.

Compute

Frequently Asked Questions

Everything you need to know about our right triangle calculator

What is Pythagorean theorem?

a² + b² = c² where c is hypotenuse (longest side) of right triangle.

Still have questions? Try the tool yourself!

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