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.

Degrees everyday, radians for calculus.

100% Free - No Signup Required

Free Scientific Calculator - Advanced Math

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

Full scientific calculator with trigonometry, logarithms, exponents, and more.

Files Never Leave Your DeviceInstant ProcessingNo Watermarks

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Quick Answer

Scientific calculators include: trig (sin, cos, tan), logs (log, ln), exponents, roots, factorials, and constants (π, e).

Key Facts about Scientific Calculator:

Includes sin, cos, tan and inverses
Log (base 10) and ln (base e)
Supports exponents and roots
Degrees and radians modes
Follows PEMDAS automatically

Why Use Our Scientific Calculator?

Scientific tools:

📐

Trigonometry

Sin, cos, tan, inverses.

📊

Logarithms

Log and natural log.

📈

Exponents

Powers and roots.

🔢

Constants

π, e, and more.

⚡

Instant

Quick results.

🔒

Private

Data stays secure.

Try Scientific Calculator Now

How to Scientific Calculator in 3 Easy Steps

Calculate:

Enter Expression

Type your calculation.

Use Functions

Select advanced functions.

Get Result

See answer.

Start Now - It's Free

Why Use Our Calculator?

Full function set

Multiple modes

Memory functions

Always available

Calculate

🧮

Scientific

Advanced math made easy

Common Use Cases for Scientific Calculator

Perfect for:

Math

Complex calculations.

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Science

Scientific formulas.

Compute

Engineering

Technical math.

Solve

Frequently Asked Questions

Everything you need to know about our scientific calculator

Degrees or radians?

Use degrees for everyday angles, radians for calculus. π radians = 180°.

Still have questions? Try the tool yourself!

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