SHA3-384 Hash Generator | Free Online Keccak/SHA-3 Hashing Tool

Generate ultra-secure SHA3-384 hashes online for free – embrace the next-generation standard for high-assurance data integrity.

Note: SHA-3 support varies by browser. This uses a JavaScript implementation for compatibility.

Input Text:

Select File:

SHA3-384 Hash Result:

In the high-stakes world of digital security, preparing for the threats of tomorrow is just as important as defending against the attacks of today. The SHA-3 family of algorithms represents this forward-thinking approach to cryptography. A SHA3-384 Hash Generator is a tool that provides access to one of the most secure variants of this next-generation standard, designed for applications where data integrity and long-term security are absolutely non-negotiable.

Based on the innovative Keccak algorithm, SHA3-384 offers a fundamentally different and more robust internal structure than the older SHA-2 family. This provides “cryptographic diversity,” a crucial strategy for building resilient systems. Our online SHA3-384 Hash Generator puts this cutting-edge cryptographic power at your fingertips, allowing you to create exceptionally strong digital fingerprints for your most sensitive and valuable data.

What is a SHA3-384 Hash Generator?

A SHA3-384 Hash Generator is an online utility that computes the unique digital fingerprint of any given data using the SHA3-384 algorithm. This algorithm is a high-security member of the SHA-3 (Secure Hash Algorithm 3) family, the latest cryptographic hashing standard published by the U.S. National Institute of Standards and Technology (NIST). The tool takes any input—text, code, or files—and produces a fixed-length 384-bit hash, which is always represented as a 96-character hexadecimal string.

The most significant aspect of the SHA-3 family is its complete departure from the design of its predecessors, SHA-1 and SHA-2. While the older algorithms use the Merkle–Damgård construction, SHA-3 is based on the groundbreaking Keccak algorithm and its innovative “sponge construction.”

This “sponge” metaphor is a simple way to visualize its operation:

Absorbing: The algorithm’s internal state “absorbs” the input data in sequential blocks, mixing and transforming the state with each new piece of information.
Squeezing: After all the input data has been absorbed, the algorithm “squeezes” the sponge, producing an output hash of the desired length—in this case, 384 bits.

This unique internal design gives SHA3-384 and its sibling algorithms inherent immunity to certain cryptographic attacks, such as length extension attacks, which can be a concern for the SHA-2 family in specific implementations. Therefore, a SHA3-384 Hash Generator is a tool for those who require not only a high level of security but also the structural resilience offered by the latest cryptographic standard.

Here are some important real-world technical use cases:

Securing Critical National Infrastructure: Government agencies and operators of critical infrastructure (e.g., power grids, financial networks) may use SHA3-384 to hash firmware updates and control system software. This ensures that the code has not been tampered with and that the system is protected by a modern, structurally diverse algorithm.
Long-Term Archiving of Sensitive Data: When legal, medical, or scientific data must be preserved for many decades, its integrity must be verifiable far into the future. Using a strong, modern hash like SHA3-384 provides a high degree of confidence that the checksums will remain secure against advances in computing power.
Designing Next-Generation Secure Systems: When architects design new security protocols from the ground up, they often employ “cryptographic agility” by using both a SHA-2 and a SHA-3 hash. A SHA3-384 Hash Generator is an essential tool for testing and implementing this modern design pattern.

Why Use a SHA3-384 Hash Generator?

While SHA-384 from the older SHA-2 family is a strong algorithm, choosing the newer SHA3-384 standard and a SHA3-384 Hash Generator offers unique, forward-looking advantages.

Extremely High Security LevelSHA3-384 provides an impressive 192 bits of security against collision and pre-image attacks. This is a significant step up from the 128-bit security of the more common 256-bit hashes, making it suitable for protecting highly sensitive, high-value data where the consequences of a compromise would be severe.
Cryptographic Diversity and ResilienceThe core reason for SHA-3’s creation was to provide a robust, well-vetted, and structurally different alternative to SHA-2. By using SHA3-384, you are not putting all your cryptographic eggs in one basket (the Merkle–Damgård construction). This diversity is a key strategy for building resilient systems that can withstand unforeseen future breakthroughs in cryptanalysis.
Inherent Immunity to Specific AttacksThe sponge construction of SHA3-384 makes it naturally immune to length extension attacks. While this can be mitigated in SHA-2 by using a proper HMAC construction, SHA-3 provides this protection by default, simplifying the design of certain secure protocols.
Adherence to the Latest Cryptographic StandardsUsing a SHA3-384 Hash Generator means you are working with the latest generation of NIST-approved hashing technology. This demonstrates a commitment to modern security practices and helps in future-proofing applications against the inevitable deprecation of older standards.
Instant Access to Advanced, Modern CryptographyOur online tool makes this cutting-edge algorithm accessible to everyone. There is no need to install specialized cryptographic libraries or compile complex code. You can test, verify, and generate SHA3-384 hashes instantly, streamlining any research, development, or verification workflow.

How to Use the SHA3-384 Hash Generator Tool

Our tool is designed to be powerful yet exceptionally simple to use. You can generate an ultra-secure SHA3-384 hash in just three easy steps.

Step 1 – Provide Your Input Data

To begin the process, you need to provide the data that you want to hash. Our tool offers two flexible input methods: you can either type or paste a text string directly into the provided input field, or you can click the “Upload” button to select a local file from your computer.

Step 2 – Click the Generate Button

Once your data has been entered or uploaded, simply click the “Generate” button. This will initiate the SHA3-384 hashing algorithm, securely processing your data through the Keccak sponge construction.

Step 3 – Copy the High-Security Hash

In an instant, the unique 96-character hexadecimal SHA3-384 hash will be computed and displayed in the output field. You can then click the “Copy” button to easily save the hash to your clipboard for your records or verification scripts.

Features of Our SHA3-384 Hash Generator Tool

Our SHA3-384 Hash Generator is engineered to provide a best-in-class experience, combining powerful cryptography with user-friendly design and a commitment to privacy.

100% Free and Web-Based: This advanced cryptographic tool is available to all users completely free of charge, with no restrictions or usage limits.
No Registration or Login Needed: We provide immediate, frictionless access. You can start generating next-generation hashes the moment you visit our site.
Implements the Official FIPS 202 Standard: Our generator provides a precise implementation of the official NIST standard for SHA-3, ensuring the hashes are accurate and can be trusted for all applications.
Handles Both Text and File Inputs: The tool is highly versatile, capable of generating a hash from a simple text string or a large file with equal ease.
Client-Side Hashing for Unmatched Privacy: Your privacy and security are paramount. The entire hashing process is performed locally in your browser. Your sensitive data is never transmitted to our servers, ensuring absolute confidentiality.

Who Can Benefit from a SHA3-384 Hash Generator?

A SHA3-384 Hash Generator is a specialized, high-security tool that is most valuable for professionals working at the forefront of cybersecurity, system design, and research.

Cybersecurity Architects: When designing multi-layered, defense-in-depth security systems, architects use SHA-3 as a dissimilar alternative to SHA-2 to prevent systemic failures.
Government and Military IT Professionals: For hashing classified and highly sensitive data in compliance with protocols that mandate the use of modern, high-strength cryptography.
Developers in Critical Sectors (Finance, Healthcare): For building applications where long-term, non-repudiable data integrity is a legal and operational requirement.
Cryptographers and Academic Researchers: For studying and comparing the properties, performance, and security margins of the latest cryptographic standards.
Forward-Looking Technology Leaders: For any organization or individual who wishes to build systems that are not just secure today, but are architected to be resilient against the threats of tomorrow.

SHA3-384 vs. SHA-384 (from the SHA-2 Family)

This is a fascinating and crucial comparison. There are two different, standardized hash functions that both produce a 384-bit output: SHA-384 (from the older SHA-2 family) and SHA3-384 (from the new SHA-3 family). They are not the same.

Feature	SHA3-384 Hash (Keccak)	SHA-384 Hash (from SHA-2)
Output Size & Security	384 bits (96 hex characters). Provides 192 bits of security.	384 bits (96 hex characters). Provides 192 bits of security.
Internal Construction	Sponge Construction (Keccak). A modern, fundamentally different design.	Merkle–Damgård Construction. A proven, iterative design based on the SHA-512 algorithm.
Standardization Date	2015 (FIPS 202). The latest generation of hash standards.	2004 (FIPS 180-2). A mature and highly trusted standard.
Software Performance (64-bit)	Generally Slower. Lacks widespread native CPU instruction support.	Generally Faster. Based on SHA-512, it is highly optimized for 64-bit CPUs and often benefits from hardware acceleration.
Hardware Performance	Extremely Fast. The Keccak algorithm is specifically designed for high efficiency in silicon (FPGAs/ASICs).	Good, but typically less efficient in a pure hardware implementation compared to Keccak.
Length Extension Resistance	✅ Immune. The sponge construction is not vulnerable to this class of attack.	❌ Vulnerable. The Merkle–Damgård construction is susceptible if used improperly for message authentication.
Primary Rationale for Use	Choose when cryptographic diversity, adherence to the latest standards, and inherent resistance to certain attacks are the top priorities.	Choose when raw software performance on existing 64-bit systems is the top priority for a 384-bit hash.

Tools You May Find Useful

A SHA3-384 Hash Generator is a specialized tool in a complete suite of cryptographic and developer utilities. Understanding its place among other tools is key to a robust workflow.

When exploring the SHA-3 standard, you can compare its properties with other members of the family, like the SHA3-256 Hash Generator or the powerful SHA3-512 Hash Generator. To contrast it with its SHA-2 counterpart, the SHA384 Hash Generator from the SHA-2 family is the direct comparison.

To properly secure messages using the older SHA-2 standard, the recommended tool is the HMAC Generator, which is designed to prevent length extension attacks. It’s also vital to understand the difference between one-way hashing for integrity and two-way Encryption-Decryption for confidentiality.

Data often needs to be encoded for transport. A Base64 Encode tool can convert any data into a safe ASCII string format. If you’re hashing structured data like API responses, validating them first with a JSON Parser is a critical step. For readability, a JSON Beautifier is an indispensable tool. Finally, for creating strong, random secrets for use in testing cryptographic systems, a Password Generator is essential.

Frequently Asked Questions (FAQs)

What is SHA3-384 used for?

SHA3-384 is used for very high-security applications where data integrity must be guaranteed over the long term. Its primary use cases include hashing highly sensitive government or financial data, securing critical infrastructure, and providing cryptographic diversity in new security protocols.

Is SHA3-384 more secure than SHA-384 from the SHA-2 family?

In terms of resistance to standard attacks like collisions, their security level is identical (192-bit security). However, SHA3-384 is considered more robust because its “sponge construction” design makes it immune to length extension attacks, a theoretical vulnerability in the SHA-2 family’s design.

Why is SHA-3 sometimes slower than SHA-2 in software?

Many modern CPUs from Intel and AMD have built-in hardware instructions that are specifically designed to accelerate SHA-1 and SHA-2 calculations. The newer SHA-3 standard does not yet have this widespread, native hardware support in general-purpose processors, so software-only implementations can be slower by comparison.

Can a SHA3-384 hash be cracked or reversed?

No. It is a secure one-way function. With any known or foreseeable technology, it is considered computationally impossible to reverse the hash to find its original input or to find two different inputs that produce the same hash.

Why was SHA-3 created if the SHA-2 family was not broken?

The creation of SHA-3 was a proactive and forward-thinking measure by NIST. Learning from the eventual failure of older algorithms like MD5 and SHA-1, NIST launched a public competition to develop a new standard with a fundamentally different internal structure. This ensures that if a major flaw is ever discovered in the SHA-2 design, a secure, thoroughly-vetted alternative is already in place.

How many characters is a SHA3-384 hash?

A 384-bit hash is always represented as a 96-character hexadecimal string. Each hexadecimal character corresponds to 4 bits of the hash (96×4=384 bits).

Is it safe to use this online SHA3-384 generator?

Yes. Our tool is built with a client-side, privacy-first architecture. All hashing calculations are performed locally in your web browser. Your data is never transmitted to our servers, ensuring it remains completely confidential.