Free Online Tools for Public Use

AES Encrypt / Decrypt

by free-tools.io Executed 68,508 times

Simple tool to encrypt and decrypt using AES. The Advanced Encryption Standard (AES) is a U.S. Federal Information Processing Standard (FIPS). It was selected after a 5-year process where 15 competing designs were evaluated. This tool supports AES-128, AES-192, and AES-256. It will pick the variant by the size of the key you pass in. If you use a passphrase, then it will generate a 256-bit key.

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Bitcoin (BTC) Address Generator

by free-tools.io Executed 499 times

Generate your own Bitcoin (BTC) wallet address to receive funds

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Crypto Address/Wallet Balance Checker

by free-tools.io Executed 761 times

Check crypto wallet balance online for any crypto currency address. It supports almost all crypto addresses like Bitcoin, Litecoin, Dogecoin, Ethereum, Counterparty, Open Assets Protocol, Ripple and Ripple based IOUs, Omni, NXT and NXT AE, NEM, Bitshares with account names, Factom, Dash, PeerCoin, Blackcoin, Grantcoin, CapriCoin, Rubycoin, etc...

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Currency Converter

by free-tools.io Executed 1,246,426 times

Simple tool convert between currencies

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DES Encrypt / Decrypt

by free-tools.io Executed 18,643 times

Simple tool to encrypt and decrypt using DES. DES is a previously dominant algorithm for encryption, and was published as an official Federal Information Processing Standard (FIPS). DES is now considered to be insecure due to the small key size.

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HMAC (MD5, SHA1, SHA256, SHA512) Hash Generator

by free-tools.io Executed 4,915 times

Simple tool hmac (MD5, SHA1, SHA256, SHA512)strings for the text content online. Keyed-hash message authentication codes (HMAC) is a mechanism for message authentication using cryptographic hash functions. HMAC can be used in combination with any iterated cryptographic hash function.

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MD5 Hash Generator

by free-tools.io Executed 6,332 times

Simple tool md5 strings for the text content online. MD5 is a widely used hash function. It's been used in a variety of security applications and is also commonly used to check the integrity of files. Though, MD5 is not collision resistant, and it isn't suitable for applications like SSL certificates or digital signatures that rely on this property.

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PBKDF2 Hash Generator

by free-tools.io Executed 6,446 times

Simple tool PBKDF2 strings for the text content online. PBKDF2 is a password-based key derivation function. In many applications of cryptography, user security is ultimately dependent on a password, and because a password usually can't be used directly as a cryptographic key, some processing is required. A salt provides a large set of keys for any given password, and an iteration count increases the cost of producing keys from a password, thereby also increasing the difficulty of attack.

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RC4 Encrypt / Decrypt

by free-tools.io Executed 676 times

Simple tool to encrypt and decrypt using RC4. RC4 is a widely-used stream cipher. It's used in popular protocols such as SSL and WEP. Although remarkable for its simplicity and speed, the algorithm's history doesn't inspire confidence in its security.

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RC4Drop Encrypt / Decrypt

by free-tools.io Executed 1,054 times

Simple tool to encrypt and decrypt using RC4Drop. It was discovered that the first few bytes of keystream are strongly non-random and leak information about the key. We can defend against this attack by discarding the initial portion of the keystream. This modified algorithm is traditionally called RC4-drop. By default, 192 words (768 bytes) are dropped by this tool.

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Rabbit Encrypt / Decrypt

by free-tools.io Executed 6,096 times

Simple tool to encrypt and decrypt using Rabbit. Rabbit is a high-performance stream cipher and a finalist in the eSTREAM Portfolio. It is one of the four designs selected after a 3 1/2-year process where 22 designs were evaluated.

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SHA1 Hash Generator

by free-tools.io Executed 2,883 times

Simple tool sha1 strings for the text content online. The SHA hash functions were designed by the National Security Agency (NSA). SHA-1 is the most established of the existing SHA hash functions, and it's used in a variety of security applications and protocols. Though, SHA-1's collision resistance has been weakening as new attacks are discovered or improved.

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