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BitShell

Lightning-fast conversion between binary, hex, decimal, text & Base64. Built for students, developers, and security researchers.

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See It In Action

Real-time conversions with smart format detection.

$ input: 192.168.1.1
→ Binary: 11000000 10101000 00000001 00000001
→ Hex: C0.A8.01.01
→ Decimal: 3232235777
→ 32 bits / 4 bytes [IPv4 DETECTED]
$ input: 2001:0db8::1
→ Binary: 00100000 00000001 00001101 10111000 ...
→ Hex: 2001:0DB8:0000:0000:0000:0000:0000:0001
→ Decimal: 42540766411282592856903984951653826561
→ 128 bits / 16 bytes [IPv6 DETECTED]
$ input: 01000001
→ Binary: 01000001
→ Hex: 41
→ Decimal: 65
→ Text: A
→ Base64: QQ==
$ input: Hello
→ Binary: 01001000 01100101 01101100 01101100 01101111
→ Hex: 48656C6C6F
→ Decimal: 72 101 108 108 111
→ Text: Hello
→ Base64: SGVsbG8=

Powerful Features

Everything you need for number system conversions, right in your browser.

Instant Conversion

Instant Conversion

Convert between binary, hexadecimal, decimal, text (UTF-8), and Base64 in real-time. One input, five instant outputs.

Smart Detection

Smart Detection

Automatically detects IPv4 and IPv6 addresses, showing accurate bit/byte counts for network addresses.

Customizable Output

Customizable Output

Format binary and hex with grouping (nibble, byte, word). Toggle prefixes, case, leading zeros, and more.

History Tracking

History Tracking

Automatic history of all conversions with one-click copy. Never lose your work.

100% Private

100% Private

All conversions happen locally in your browser. No data ever leaves your device.

Fully Configurable

Fully Configurable

Adjust font size, bit/byte counters, grouping preferences, and more to match your workflow.

How to Use

Get started in seconds. It's that simple.

1

Install Extension

Add BitShell to Chrome from the Chrome Web Store with one click.

2

Select Input Type

Choose from Binary, Hex, Decimal, Text, or Base64 as your input format.

3

Enter Your Data

Type or paste any value. Smart detection works automatically for IP addresses.

4

Get All Formats

Instantly see conversions in all five formats. Copy any result with one click.

Perfect For

Whether you're debugging, learning, or analyzing.

Computer Science Students

Computer Science Students

Master number systems, data structures, and low-level programming. Perfect for networking, systems programming, and algorithms courses.

Developers

Developers

Debug binary data, understand hex dumps, encode/decode Base64, and work with low-level data structures.

Security Researchers

Security Researchers

Analyze packet captures, decode encoded payloads, and convert between different data representations.