FormatAndFix

Encoding & Hashing Tools

Base64 encoding, URL encoding, MD5/SHA hashes.

18 Tools Available

Base64 Encoder

Instantly use our free Base64 Encoder online.

Base64 Decoder

Instantly use our free Base64 Decoder online.

URL Encoder

Instantly use our free URL Encoder online.

URL Decoder

Instantly use our free URL Decoder online.

HTML Entity Encoder

Instantly use our free HTML Entity Encoder online.

HTML Entity Decoder

Instantly use our free HTML Entity Decoder online.

UTF-8 Encoder

Instantly use our free UTF-8 Encoder online.

UTF-8 Decoder

Instantly use our free UTF-8 Decoder online.

MD5 Hash Generator

Instantly use our free MD5 Hash Generator online.

SHA-1 Hash Generator

Instantly use our free SHA-1 Hash Generator online.

SHA-256 Hash Generator

Instantly use our free SHA-256 Hash Generator online.

SHA-512 Hash Generator

Instantly use our free SHA-512 Hash Generator online.

ROT13 Encoder / Decoder

Instantly use our free ROT13 Encoder / Decoder online.

Caesar Cipher Encoder / Decoder

Instantly use our free Caesar Cipher Encoder / Decoder online.

ASCII to Text Converter

Instantly use our free ASCII to Text Converter online.

Text to ASCII Converter

Instantly use our free Text to ASCII Converter online.

Image to Base64 Converter

Instantly use our free Image to Base64 Converter online.

Base64 to Image Converter

Instantly use our free Base64 to Image Converter online.

Secure Encoding, Encryption & Hashing Tools for Developers

In the digital age, securing data transmission and ensuring that different computer systems can communicate flawlessly are foundational to software engineering. Whether you are building web applications, securing passwords, or debugging API payloads, developers frequently need to encode strings or generate cryptographic hashes. Our comprehensive suite of free online encoding and encryption tools provides a fast, reliable, and secure way to perform these essential tasks. Most importantly, we prioritize your security by ensuring that these transformations happen client-side, meaning your sensitive data never leaves your browser.

Essential Data Encoding and Decoding Utilities

Data often needs to be translated into specific formats to be safely transmitted over the internet or stored in databases. One of the most common formats is Base64, which translates binary data into readable ASCII text.

Advanced Cryptographic Hash Generators

When it comes to verifying data integrity or securely handling passwords, cryptographic hash functions are indispensable. Unlike encoding, hashing is a one-way process. Our robust toolkit includes multiple hashing algorithms to suit your security requirements. These tools allow you to instantly generate secure digital fingerprints for your files or text strings, providing peace of mind when validating data authenticity.

Classic Ciphers and Format Converters

Sometimes you need simpler obfuscation techniques for puzzles, games, or basic text hiding. Beyond ciphers, developers frequently need to translate data between machine-readable formats. Our converters make this trivial.

Handling Media: Image to Base64 Conversion

Frequently Asked Questions

Absolutely. Your privacy is our top priority. Tools like our SHA-256 Hash Generator process your data locally in your browser using client-side JavaScript. We do not store, log, or transmit your raw text or generated hashes to our servers.

Yes, because the processing is done locally on your machine. However, as a general security best practice, you should never paste live, production passwords into any online tool, even those that operate entirely client-side.

Yes. Once the page is loaded in your browser, the JavaScript required for tools like the Base64 Encoder and URL Decoder runs locally, meaning you can continue to use them even if your internet connection drops.

No, they serve different purposes. Encoding (like Base64) transforms data into a standard format for compatibility and can be easily reversed by anyone. Encryption transforms data to keep it secret and requires a specific key or password to reverse.

Encoding ensures data is usable across different systems and is publicly reversible. Encryption hides data from unauthorized users and is reversible only with a secret key. Hashing creates a unique, fixed-size fingerprint of data and is intentionally irreversible, usually used to verify data integrity.

Yes, encoding is fully reversible. Because encoding uses standard algorithms (like UTF-8 or URL Encoding) designed for compatibility rather than security, anyone with the appropriate decoder tool can instantly translate the data back to its original form.