Use base64 encode decode, a JWT decoder, hash and UUID generators, a regex tester online, timestamp converter online, JSON formatter online, curl to code converter, and more—right in your browser. Jump to any tool below or open the full page for each link.
Base64 Encode & Decode
Encode text to Base64 or decode Base64 to text
Base64 Encoder / Decoder Online
Base64 encode decode helps you turn plain text into Base64 strings (or reverse) for APIs, configs, and data URLs. This tool runs locally in your browser—nothing is uploaded.
Features
Encode plain text to Base64
Decode Base64 back to readable text
Copy output in one click
What is Base64?
Base64 is an encoding scheme that converts binary data or text into a string of ASCII characters. It uses 64 printable characters (A–Z, a–z, 0–9, +, /) and is often used to embed data in URLs, JSON, or XML.
How to Encode to Base64
Type or paste your text in the input box above.
Click "Encode to Base64".
Copy the result from the output box.
How to Decode Base64
Paste a valid Base64 string in the input box and click "Decode from Base64". Invalid Base64 will produce an error.
Is This Base64 Tool Secure?
Yes. Encoding and decoding run entirely in your browser. Nothing is sent to any server.
Online Clipboard
Paste text and get a shareable link—an online clipboard to move snippets between phone and desktop without login.
Try patterns against sample text, see matches and groups, and refine expressions before you commit them in code. A practical regex tester online for daily debugging.
Paste a curl command and generate equivalent snippets for languages and libraries. A focused curl to code converter for translating CLI calls into app code.
Decompile JAR files and Java class files with this Java decompiler online. Turn compiled bytecode into readable source-style output for inspection and debugging.
They are browser utilities—like a JSON formatter online or regex tester online—that help you work with text and code without installing apps. Puya groups many of them on one site so you can move quickly between tasks.
Is this Java decompiler free?
Yes. The Java decompiler online on Puya is free for typical JAR and class inspection in the browser.
How do I use the regex tester online?
Open the Regex page, enter your pattern and sample text, then run a match to see highlights. Iterate until the pattern behaves the way you expect in your app.
Can I format JSON online?
Yes—use the JSON Formatter to paste raw JSON, format it, and catch syntax issues before you ship configs or API responses.