If you’re always working with code, data, or design, switching between different formats can get messy. Here’s a straightforward guide to 8 handy online tools you can use for free, no installation required. Everything is explained simply, so anyone can follow along.
Table of Contents
Base Converter
IP Address Converter
Color Code Converter
JSON Formatter
Text Case Converter
Timestamp Converter
Base64 Encoder & Decoder
Hash Calculator
Base Converter
This tool lets you convert numbers between binary, octal, decimal, and hexadecimal. It’s especially useful for programming and low-level computing work.
How to Use
Choose your input base on the left.
Select your target base on the right.
Type in your number.
Click “Convert” and you’ll see the result instantly.
Just remember:
Binary only uses 0 and 1
Octal uses 0–7
Decimal uses 0–9
Hexadecimal uses 0–9 and A–F
This tool only works with whole numbers — decimals are not supported.
IP Address Converter
Great for network engineers and developers, this tool converts IPv4 addresses to hex, decimal integer, or binary formats, and back again.
How to Use
Pick the conversion type you need.
Enter a valid IPv4 address or its equivalent code.
Click “Convert” to get your result.
For example:
192.168.1.1 becomes C0A80101 in hex
It also converts to a long decimal number or 32-bit binary
This tool supports IPv4 only. Make sure your input follows standard formatting or it won’t convert properly.
Color Code Converter
Perfect for designers and front-end developers, this tool switches between RGB and hex color codes and even shows a live color preview.
How to Use
Choose either RGB-to-hex or hex-to-RGB.
Enter your color code — with or without # or rgb().
Click “Convert”.
Examples:
255,0,0 becomes #FF0000
#FFFFFF is pure white
Each RGB value must be between 0 and 255. Both 3-digit and 6-digit hex codes work.
JSON Formatter
When working with APIs or data, JSON often comes out as one messy line. This tool cleans it up or compresses it, and automatically checks for errors.
How to Use
Paste your JSON into the box.
Click the button to format (neat, readable) or minify (compact, no spaces).
Common mistakes to avoid:
Always use double quotes, not single quotes
Don’t add trailing commas
No comments allowed
The tool will warn you if your JSON is invalid.
Text Case Converter
Quickly change text between uppercase, lowercase, capitalized, camelCase, and snake_case. Great for writing, coding, and formatting.
How to Use
Select your desired case style.
Type or paste your text.
Click “Convert”.
Chinese characters, numbers, and symbols stay the same. This is super useful for naming variables in JavaScript, Python, Java, and databases.
Timestamp Converter
If you work with logs, servers, or code, you’ll often need to convert between Unix timestamps and normal date-time formats.
How to Use
Choose timestamp-to-date or date-to-timestamp.
Enter a 10-digit timestamp or YYYY-MM-DD HH:MM:SS.
Click “Convert”.
Example:
1735689600 = 2025-01-01 00:00:00
This tool supports timestamps roughly between 1901 and 2038 and works in seconds, not milliseconds.
Base64 Encoder & Decoder
Base64 turns text or binary data into safe ASCII strings. Used in websites, APIs, emails, and image embedding.
How to Use
Choose Encode or Decode.
Enter your text or Base64 string.
Click “Convert”.
It supports English, Chinese, and special characters. Note that Base64 makes content slightly longer, and only complete strings can be decoded properly.
Hash Calculator
Generate secure hashes using MD5, SHA1, SHA256, and SHA512. Used for file verification, data integrity, and basic security.
How to Use
Select your algorithm.
Enter your text.
Click “Calculate Hash”.
The same input always gives the same hash. For security:
MD5 and SHA1 are fast but less secure
SHA256 and SHA512 are better for passwords and sensitive data
Hash is one-way — it cannot be reversed.
Final Notes
All 8 tools are available for free on ToolNow, no downloads or sign-ups required.
If something isn’t working or you have suggestions, use the feedback form at the bottom of the page.
You can find all these tools from the homepage or category navigation.
Ideal for: programmers, designers, network engineers, students, and anyone who works with data conversion.
