Hash Generator
Generate MD5, SHA-256, SHA-512, SHA3, and 10+ cryptographic hashes instantly. Hash text and files up to 100MB. 100% private.
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Select Algorithms
= Secure= Legacy (not for security)
100% Private
Hashing in your browser
Instant Results
Web Crypto API powered
9 Algorithms
MD5 to SHA3-512
Why Choose Filator's Hash Generator?
10+ Algorithms
MD5, SHA-256, SHA-512, SHA3-256, SHA3-512, RIPEMD-160, BLAKE2b, and more. Most competitors offer only 3-5 algorithms.
100% Private
All hashing happens in your browser using Web Crypto API. Your text and files never leave your device—unlike server-based tools.
File Hashing
Hash files up to 100MB with drag-and-drop. Most online tools limit to text only or small files. Built-in hash comparison tool included.
How to Generate Hashes Online for Free
Filator's free hash generator lets you instantly create MD5, SHA-256, SHA-512, and other cryptographic hashes directly in your browser—no signup required, no server uploads, complete privacy. Whether you need to verify file integrity, hash passwords, or create digital fingerprints, our tool supports 10+ algorithms and handles files up to 100MB.
Why Choose Filator's Hash Generator?
10+ Hash Algorithms
Most online hash generators offer only MD5 and SHA-256. Filator supports MD5, SHA-1, SHA-256, SHA-384, SHA-512, SHA3-256, SHA3-512, RIPEMD-160, and BLAKE2b—covering all use cases from legacy compatibility to maximum security.
Complete Privacy
Unlike competitors that upload your data to their servers, all hashing happens locally in your browser using the Web Crypto API. Your sensitive text and files never leave your device.
File Hashing up to 100MB
Many tools limit you to text input or small files. Filator handles files up to 100MB with drag-and-drop support—perfect for verifying software downloads, ISOs, and large documents.
Built-in Hash Comparison
Verify file integrity by comparing your generated hash with an official checksum. No need to manually compare 64-character strings—our tool does it automatically.
How to Generate a Hash Step-by-Step
- 1.Enter text in the input field or drag-and-drop a file (up to 100MB)
- 2.Select your desired hash algorithm (SHA-256 recommended for most uses)
- 3.View your hash result instantly—calculated in your browser
- 4.Click to copy the hash or use the comparison tool to verify against another hash
Hash Algorithm Comparison
| Algorithm | Output Size | Security | Best For |
|---|---|---|---|
| MD5 | 128-bit (32 chars) | Broken | Legacy, basic checksums |
| SHA-1 | 160-bit (40 chars) | Weak | Git commits, legacy |
| SHA-256 | 256-bit (64 chars) | Secure | General purpose (recommended) |
| SHA-512 | 512-bit (128 chars) | Very Secure | High-security applications |
| SHA3-256 | 256-bit (64 chars) | Secure | Ethereum, blockchain |
| BLAKE2b | Variable (up to 512-bit) | Secure | High-performance apps |
Understanding Hash Functions
What is a Cryptographic Hash?
A cryptographic hash function takes any input (text, file, data) and produces a fixed-size output called a hash, digest, or checksum. The same input always produces the same hash, but even a tiny change in input creates a completely different hash. This makes hashes ideal for detecting modifications.
One-Way Function
Hash functions are designed to be irreversible. You can easily compute a hash from data, but you cannot compute the original data from a hash. This property is essential for password storage—even if a database is breached, attackers only get hashes, not actual passwords.
Collision Resistance
A secure hash function makes it computationally infeasible to find two different inputs that produce the same hash (a collision). MD5 and SHA-1 have known collision attacks, which is why SHA-256 or higher is recommended for security applications.
Common Use Cases
File Integrity Verification
Verify downloaded software, ISOs, and files haven't been tampered with by comparing your hash with the official checksum from the source
Password Storage
Store password hashes instead of plain text. Use SHA-256 or higher with salt for maximum security in your applications
Digital Signatures
Create unique fingerprints for documents, code commits, and smart contracts. Essential for blockchain and certificate validation
Data Deduplication
Identify duplicate files by comparing hashes instead of file contents. Much faster for large datasets and storage optimization
Frequently Asked Questions
What is a hash generator and how does it work?
A hash generator creates a unique fixed-size string (hash) from any input data using cryptographic algorithms. The same input always produces the same hash, but you cannot reverse a hash back to the original data. This makes hashes perfect for password storage, file integrity verification, and digital signatures.
What's the difference between MD5 and SHA-256?
MD5 produces a 128-bit (32-character) hash and has known security vulnerabilities including collision attacks. SHA-256 produces a 256-bit (64-character) hash and is cryptographically secure with no known practical attacks. For security-critical applications, always use SHA-256 or higher.
Can I reverse a hash to get the original data?
No, cryptographic hash functions are one-way operations by design. You cannot mathematically reverse a hash to recover the original data. This is what makes hashes secure for storing passwords—even if someone obtains the hash, they can't determine the original password without brute-force guessing.
Which hash algorithm should I use?
For most security applications, use SHA-256. For maximum security, use SHA-512 or SHA3-512. For high-performance applications, BLAKE2b is faster than MD5 while being more secure than SHA-3. Only use MD5 or SHA-1 for legacy compatibility.
Is my data safe when using this tool?
Yes, 100% safe. All hashing happens directly in your browser using the Web Crypto API. Your text and files are never uploaded to any server—everything is processed locally on your device. This makes it safe to hash sensitive data.
What is a hash collision?
A hash collision occurs when two different inputs produce the same hash output. While theoretically possible for all hash functions, secure algorithms like SHA-256 make collisions computationally infeasible. MD5 and SHA-1 have known collision vulnerabilities.
How do I verify a file's integrity?
Upload or drag-and-drop the file into the hash generator and select the same algorithm used by the source (usually SHA-256). Compare your generated hash with the official checksum. If they match exactly, the file hasn't been modified.
Is this hash generator free to use?
Yes, Filator's hash generator is completely free with no signup required. All hashing happens in your browser, so your data stays private. There are no usage limits or premium features locked behind paywalls.
Ready to Generate Hashes?
Start generating MD5, SHA-256, SHA-512, and other cryptographic hashes instantly with no signup, complete privacy, and support for 10+ algorithms. Whether you need to verify file integrity, hash passwords, or create digital signatures—Filator has you covered.