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 Hex Calculator - Convert & Calculate

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

Convert between hexadecimal, decimal, and binary. Perform hex arithmetic.

Files Never Leave Your DeviceInstant ProcessingNo Watermarks

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Quick Answer

Hexadecimal is base-16 using 0-9 and A-F. Hex FF = decimal 255. Used in programming and web colors (#FFFFFF).

Key Facts about Hex Calculator:

Base-16 system
Uses 0-9 and A-F
One hex digit = 4 bits
FF hex = 255 decimal
#FFFFFF = white color

Why Use Our Hex Calculator?

Hex tools:

🔢

Conversions

Hex, decimal, binary.

🎨

Color Codes

Web color hex.

💻

Programming

Developer tool.

➕

Hex Math

Arithmetic operations.

⚡

Instant

Quick results.

🔒

Private

Data stays secure.

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How to Hex Calculator in 3 Easy Steps

Use hex:

Enter Number

Hex or decimal.

Convert

See all formats.

Calculate

Hex arithmetic.

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Why Use Our Calculator?

Multiple formats

Color support

Hex arithmetic

Developer friendly

Convert

💻

Hex

Convert and calculate

Common Use Cases for Hex Calculator

Perfect for:

Programming

Hex conversions.

Convert

Web Colors

Color codes.

Calculate

Computer Science

Number systems.

Learn

Frequently Asked Questions

Everything you need to know about our hex calculator

What is hexadecimal?

Base-16 number system using 0-9 and A-F. Common in programming and web colors.

Still have questions? Try the tool yourself!

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Binary Calculator

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