For developers
Developer Tools
JSON, Base64, URL encoding, UUIDs, hashes and other developer utilities.
Available now
Coming soon
We're building these next. Check back shortly.
Hash Generator
Generate MD5 and SHA hashes.
JSON Formatter
Format and validate JSON.
Base64 Encoder
Encode and decode Base64.
URL Encoder
Encode and decode URLs.
UUID Generator
Generate random UUIDs.
Password Generator
Create strong passwords.
Color Converter
Convert HEX, RGB and HSL.
Developer tools cover the quick conversions and lookups that come up constantly while building software — encoding and decoding, formatting, and generating or inspecting common data formats. They save you from writing a throwaway script for a one-off task.
Each tool works in your browser, so your data stays local and the results are instant. They are handy during debugging, testing and everyday coding when you need a dependable answer without leaving the page.
How to use these tools
- Choose the utility you need — encode/decode, format, or generate a value.
- Paste your input, such as a JSON string, an encoded value or some text.
- Read the transformed output immediately, with formatting or validation applied.
- Copy the result into your code, request or config.
- Keep the tools bookmarked for the small conversions that come up mid-task.
Common ways people use them
- Pretty-printing a minified JSON response to read it while debugging.
- Encoding or decoding a Base64 or URL value by hand.
- Generating a UUID for a test record or a new database row.
- Checking a hash or formatting a snippet without switching to the terminal.
- Validating that a piece of data is well-formed before pasting it into code.
Good to know
Encoding vs encryption
Encoding, such as Base64 or URL encoding, reshapes data so it can travel safely through a system — it is easily reversible and is not security. Encryption, by contrast, protects data with a key. These tools deal with encoding and formatting, not encryption.
Why JSON needs formatting
JSON is often sent minified, with no spaces or line breaks, to save bandwidth. That is efficient for machines but hard for humans to read. A formatter re-indents it and can flag structural errors, making a response much easier to inspect.
What a UUID is
A UUID is a 128-bit identifier designed to be unique without a central authority, which is why it is used for database keys and request IDs. Generating one locally gives you a fresh, collision-resistant value instantly.
Related tools & guides
Frequently asked questions
- Is my data sent anywhere?
- No. Developer tools process input locally in your browser, so nothing you paste is uploaded.
- Are these tools free for commercial use?
- Yes. They are free to use, including for professional and commercial work.
- Is Base64 encoding a form of encryption?
- No. Base64 is reversible encoding meant for safe transport of data, not security. Never use it to protect sensitive information.
- Why should I format JSON?
- Formatting re-indents minified JSON and can surface structural errors, making a response far easier to read and debug.
- Do they work offline?
- Most run fully client-side, so they continue to work once the page has loaded even with a poor connection.
- Do I need to install anything?
- No. Everything runs in the browser with no setup.