json formatter
JSON Formatter

Beautify, validate, and minify JSON in one click.

  • 100% Free
  • Customizable
  • Download
  • Unlimited
json ⇄ csv converter
JSON ⇄ CSV Converter

Convert JSON arrays to CSV and back.

  • 100% Free
  • Customizable
  • Download
  • Unlimited
base64 encode/decode
Base64 Encode/Decode

Encode or decode Base64 strings safely.

  • 100% Free
  • Customizable
  • Download
  • Unlimited
url encode/decode
URL Encode/Decode

Escape and unescape URL components instantly.

  • 100% Free
  • Customizable
  • Download
  • Unlimited
html encode/decode
HTML Encode/Decode

Convert HTML entities to text and back.

  • 100% Free
  • Customizable
  • Download
  • Unlimited
hash generator
Hash Generator

Generate MD5, SHA-1, SHA-256, and more hashes.

  • 100% Free
  • Customizable
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  • Unlimited
uuid generator
UUID Generator

Create unique UUIDs for apps and databases.

  • 100% Free
  • Customizable
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  • Unlimited
timestamp converter
Timestamp Converter

Convert Unix timestamps to dates and back.

  • 100% Free
  • Customizable
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  • Unlimited
regex tester
Regex Tester

Test and debug regular expressions live.

  • 100% Free
  • Customizable
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  • Unlimited
number Base Converter
Number Base Converter

Convert numbers between binary, octal, decimal, hex, and custom bases 2–36.

  • 100% Free
  • Customizable
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  • Unlimited
jWT Decoder
JWT Decoder

Decode a JWT header and payload locally — nothing is sent anywhere.

  • 100% Free
  • Customizable
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  • Unlimited
markdown to HTML
Markdown to HTML

Write Markdown, preview live, and copy or download the generated HTML.

  • 100% Free
  • Customizable
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  • Unlimited
hTML Minifier
HTML Minifier

Remove comments and collapse safe whitespace to minify your HTML.

  • 100% Free
  • Customizable
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  • Unlimited
jS Minifier
JS Minifier

Minify JavaScript instantly and download the result as a .js file.

  • 100% Free
  • Customizable
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  • Unlimited
cSS Minifier
CSS Minifier

Minify CSS instantly and download the result as a .css file.

  • 100% Free
  • Customizable
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  • Unlimited
color Converter
Color Converter

Convert colors between HEX, RGB and HSL with a live preview.

  • 100% Free
  • Customizable
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  • Unlimited
text Diff Checker
Text Diff Checker

Compare two blocks of text line by line and see what was added and removed.

  • 100% Free
  • Customizable
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  • Unlimited

Developer tools are meant for people in technical fields, like developers, who can use ToolFlora’s tools to get help with encoding, decoding, formatting, validation, conversion, and code minification. Tools can be useful for developers when working with APIs, debugging JSON payloads, tokens, or preparing code for production. You can use them directly in the browser without installing anything, which saves time for busy technical professionals. 

What Can You Do with These Tools?

Encode & Decode 

You can convert data into different formats using encoding tools, whether you are working on web development, APIs, or data exchange. You can inspect and understand the encoded values using decoding tools. 

Base64 encoder, URL encoder, HTML encoder, and JWT decoder are tools that help convert your data into different formats for your specific work. 

Never share sensitive tokens with a JWT decoder, as it doesn’t verify the token’s signature or establish its trust. 

Format & Validate 

There are times when debugging particular software becomes hard because of messy JSON filled with complex regular expressions or for other reasons; these tools help you inspect the technical content easily. 

To make the text readable, you can use a JSON formatter, check the regular expressions using a regex tester, or you can compare two different texts with the help of a text diff checker tool. These tools help you with troubleshooting, API responses, and reviewing configuration files. 

Minify for Production 

Minification helps you reduce file size by removing unnecessary characters, including whitespace and comments from your supported code. Whether you need a tool for your HTML markup or for your CSS or JavaScript code.

Some users confuse minification with encryption, but minified code can still be inspected, so you should test it before using it in production. 

Convert between Formats 

You don’t need to change the format of your text for different systems manually, as these conversion utilities help you do so in no more than a few seconds. Never forget to check your input and output info to ensure the expected results. 

Convert JSON to CSV for your spreadsheets, Markdown to HTML, bases of numbers between decimal, hexadecimal, binary, and other supported bases, colors, and timestamps between supported date and time representations. 

Generate & Hash 

Whether to generate multiple identifiers for your development tasks or to create hash values to compare and develop data processes. UUID and Hash generators are available from ToolFlora to help you with your data processing and other development work.  

For authentication systems, use a password-hashing approach. 

Which Tool Do I Need?

Task Tool Typical use 
Encode text in base64 Base64 encoder API payloads and data representation 
Encode special characters in a URL URL encoder Query parameters and URLs 
Convert special characters to HTML entities HTML encoder  HTML content handling 
Inspect a JWT payload JWT decoder Token debugging and inspection 
Format JSON into readable codeJSON formatter API responses and configuration files 
Test a regular expression Regex tester Validation and pattern matching 
Compare two text versions Text diff Debugging and code review 
Reduce HTML file size HTML minifier Frontend build workflows 
Minify CSS CSS minifierProduction stylesheet preparation 
Minify javascript JS minifier Frontend optimization 
Convert JSON into CSV JSON to CSV converter Data exports and spreadsheets 
Convert Markdown to HTMLMarkdown to HTML Documentation and website content 
Convert binary to decimal Number base converter Programming and computer science 
Convert color formats Color converter UI design and frontend development 
Convert timestamps Timestamp converter APIs and date/time debugging 
Generate a unique identifier UUID generator Database records and application development 
Generate a hash value Hash generator Data comparison and testing 

When to Encode vs When to Hash

While encoding and hashing have some similarities in each other both techniques could generate a string that looks unfamiliar to people who have never seen it before; these two methods have very different goals and outcomes. Base64 and URL encoding are reversible since an individual who knows the encoded message and the procedure to decode it could get the original data back. The goal of encoding is to make the data understandable to another system that would be processing it, and it is not used as a method to protect confidential data. Hashing generates the value from the input data by applying a certain hash function to it. Cryptographic hashes, such as SHA-256, are meant to be one-way, but they are not a way to encrypt data to be able to restore it. MD5 and SHA-1 are not recommended to be used in secure systems.

Frequently Asked Questions

Is my data or token sent anywhere?

ToolFlora’s developer tools are intended for browser-based processing, but you should verify the implementation and privacy behavior of the specific tool before entering sensitive information. In particular, do not paste live access tokens, private keys, passwords, or confidential API payloads into a JWT decoder or any online tool unless you have confirmed how the data is handled. A JWT can contain sensitive claims, and decoding it does not validate its authenticity.

Is Base64 encryption?

No. Base64 is an encoding format, not encryption. It converts data into a text representation that can be decoded. Anyone who obtains the encoded value can generally recover the original content without a secret key.

Which hash should I use in 2026?

It all depends on what you are hashing.

As far as password storage goes, OWASP advises using Argon2id as a recommended choice, while scrypt can serve as an alternative when Argon2id is unavailable. bcrypt still has some applications in old systems, while PBKDF2 might be used if there is a need to be FIPS-140 compliant. Fast hashes, like MD5 and SHA-256, cannot be used for storing passwords as they are optimized for speed and not password cracking resistance.

When hashing any other data, pick a suitable algorithm depending on your security needs and other factors. Do not use a certain hash just because it is implemented in an easily accessible online hash generator.

What is the difference between encoding and encryption?

Encoding changes data into another representation and does not require a secret key. Encryption uses a cryptographic process and a key to protect information from unauthorized access. Encoding should not be used as a replacement for encryption.

Can I use the JSON Formatter for API responses?

Yes. You can use a JSON formatter to make valid JSON easier to read and inspect. It can be helpful when debugging API responses, checking nested objects, or reviewing configuration data. Formatting does not necessarily validate business rules or API-specific requirements.

Does the Regex Tester support all regular expression features?

Support depends on the regular expression engine used by the tool. Different programming languages and browsers may implement different syntax and features. Test your pattern in the same environment where it will run in production.

Is minified code secure?

No. Minification primarily changes the presentation and size of code. It does not guarantee security, hide secrets, or prevent reverse engineering. Never include passwords, private keys, or other confidential values in frontend code.

Can I convert any JSON file into CSV?

Not every JSON structure maps directly to a simple CSV table. Flat arrays of objects are generally easier to convert, while deeply nested objects and arrays may require decisions about how to represent the data. Review the output before using it in a spreadsheet or import workflow.

Can I use the UUID Generator for database IDs?

UUIDs can be used as identifiers for records and application objects, depending on your database design and requirements. Consider the UUID version, uniqueness properties, indexing implications, and how your application generates and stores identifiers.

Can a hash be converted back into the original text?

A cryptographic hash is designed to be one-way, so it cannot normally be decoded back into its original input. However, weak or predictable inputs may sometimes be guessed and matched against their hash values. Hashing is not the same as irreversible protection against every possible attack.

Are ToolFlora Developer & Encoders tools free?

Tool availability and features depend on the individual utility. You can open the relevant ToolFlora tool to check its functionality and use it for your development task. Avoid relying on an online tool for sensitive data without first reviewing its security and privacy behavior.